| Popular Science https://www.popsci.com/ Awe-inspiring science reporting, technology news, and DIY projects. Skunks to space robots, primates to climates. That's Popular Science, 145 years strong. Thu, 01 Jun 2023 22:00:00 +0000 en-US hourly 1 https://wordpress.org/?v=6.1.1 https://www.popsci.com/uploads/2021/04/28/cropped-PSC3.png?auto=webp&width=32&height=32 | Popular Science https://www.popsci.com/ 32 32 Workers rely on medieval era tech to reconstruct the Notre Dame https://www.popsci.com/technology/notre-dame-reconstruction-medieval-tools/ Thu, 01 Jun 2023 22:00:00 +0000 https://www.popsci.com/?p=545258
Notre Dame de Paris cathedral on sunny day
Carpenters are using the same tools and materials to reconstruct Notre Dame as were used to first build it. Deposit Photos

Laborers are taking a decidedly old school approach to rebuilding the fire-ravaged cathedral.

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Notre Dame de Paris cathedral on sunny day
Carpenters are using the same tools and materials to reconstruct Notre Dame as were used to first build it. Deposit Photos

It’s been a little over four years since a major fire ravaged France’s iconic Notre Dame de Paris cathedral, causing an estimated $865 million of damage to the majority of its roof and recognizable spire. Since then, the French government, engineers, and a cadre of other dedicated restoration experts have been hard at work rebuilding the architectural wonder, which is currently slated to reopen to the public by the end of 2024.

It’s a tight turnaround, and one that would be much easier to meet if carpenters used modern technology and techniques to repair the iconic building. But as AP News explained earlier this week, it’s far more important to use the same approaches that helped first construct Notre Dame—well over 800 years ago. According to the recent dispatch, rebuilders are consciously employing medieval era tools such as hand axes, mallets, and chisels to reforge the cathedral’s hundreds of tons’ worth of oak wood roofing beams.

Although it would progress faster with the use of modern equipment and materials, that’s not the point. Instead, it’s ethically and artistically far more imperative to stay true to “this cathedral as it was built in the Middle Ages,” explained Jean-Louis Georgelin, a retired general for the French overseeing the project.

[Related: The Notre Dame fire revealed a long-lost architectural marvel.]

Thankfully, everything appears to be on track for the December 2024 reopening. Last month, overseers successfully conducted a “dry run” to assemble and erect large sections of the timber frame at a workshop in western France’s Loire Valley. The next time the pieces are put together will be atop the actual Notre Dame cathedral.

As rudimentary as some of these construction techniques may seem now, at the time they were considered extremely advanced. Earlier this year, in fact, researchers discovered Notre Dame was likely the first Gothic-style cathedral to utilize iron for binding sections of stonework together.

It’s not all old-school handiwork, however. The team behind Notre Dame’s rebuilt roofing plans to transport the massive components to Paris via trucks, and then lifted into place with help from a large mechanical crane. Over this entire process, detailed computer analysis was utilized to make absolutely sure carpenters’ measurements and handhewn work were on the right track. Still, the melding of bygone and modern technology appears to perfectly complement one another, ensuring that when Notre Dame finally literally and figuratively rises from the ashes, it will be as stunning as ever.

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The best travel drones for 2023 https://www.popsci.com/gear/best-travel-drones/ Thu, 01 Jun 2023 21:15:00 +0000 https://www.popsci.com/?p=545305
The best travel drones composited
Stan Horaczek

Bring a drone with you on your next trip to capture truly unique angles.

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The best travel drones composited
Stan Horaczek

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Best overall Mavic Mini 3 drone DJI Mavic Mini 3 Pro
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Despite its advanced camera, this drone only weighs 249 grams so it doesn’t require registration with the FAA.

Best for pros DJI Mavic 3 drone in a hand on an orange background DJI Mavic 3
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A very robust camera system and advanced all-around object avoidance make this drone worthy of pro work.

Best for photos The Parrot Afani drone Parrot Anafi
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A unique camera system captures 4K footage and provides a view unlike the rest of its competition.

Travel drones aren’t just for professional creatives anymore. In the last few years, these pint-sized crafts have become widely accessible thanks to compact and budget-friendly options hitting the market. A travel drone is a great way to capture photos and footage with unique perspectives while you are on the road. It’s a great tool for travel vloggers, filmmakers, or families looking for a way to keep kids entertained on vacation. While you can go seriously Hollywood with your purchase, we think the best drone options are either so compact that they don’t even need to be registered with the FAA or feature a foldable design that makes them easy to slide into a camera backpack. Price can vary widely depending on what types of advanced features that drone might include and the manufacturer. A higher-end consumer drone will typically cost about $2K, while budget options can be as low as $100. In this buying guide, you will find the best travel drones that fit various budgets and use cases.

How we chose the best travel drones 

When selecting the products in this buying guide, it was important to select a combination of compact travel drones (that don’t need to be registered with the FAA) and a few full-sized drones aimed at a professional user. We selected products that would fit a range of budgets and skill levels and represented different brands currently on the market. When selecting the drones in this buying guide, we also considered flight time, video capture capability, and advanced features that make specific models stand out in the field. Camera quality and functionality play a key role in our selections. The products that appear in this guide were selected through a combination of hands-on experience, editorial reviews, and user feedback.

The best travel drones: Reviews & Recommendations 

While we offer specific recommendations depending on your usage, many of the drones on this list will work for several kinds of pilots. Be sure to check out the entire list before making a purchase to make sure you’re getting what you need out of your new flying machine.

Best overall: DJI Mini 3 Pro

Mason Marsh

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Specs

  • Weight: Under 249 grams
  • Flight Time: 38 minutes 
  • Video: 4K 

Pros

  • No need to register with FAA
  • Small and compact 
  • Vertical shooting capabilities
  • Dedicated controller
  • Wind resistant up to 38kph winds

Cons

  • Expensive for size 
  • Visibility in air could be improved 

The DJI Mini Pro 3 claims our spot as best overall travel drone due to its compact size, substantial flight time, and advanced features like 3-way obstacle avoidance. And because this particular drone is under 249 grams, there’s no need to register it with the FAA before you take to the skies. The impressive 38-minute battery life can be extended to 51 minutes when used with the Intelligent Flight Battery Plus—a flight time unheard of for most compact drones on the market. It can shoot 4K/60fps video and capture 48-megapixel RAW images; it also features vertical shooting—ideal for capturing social videos for TikTok or Instagram stories. A variety of QuickShot modes make it easy to capture panoramas and pre-programmed dynamic flight patterns. It has a fast F/1.7 lens, which means it will perform well at sunset or on overcast days, plus it features wind resistance up to 38kph so that it can withstand a bit of turbulence. The DJI Mini Pro 3’s all-in-one RC-N1 controller has a nicely sized 5-inch screen, eliminating the need to use your smartphone while flying. The DJI Mini Pro packs pro-level features into a super compact package that can easily fit into a camera backpack. Although it’s on the pricey side for its size, we think the advanced features make it a worthy investment for taking on your next adventure. 

Read our full review: DJI Mini Pro 3

Best value: Holy Stone HS110D FPV RC Drone

Holy Stone

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Specs

  • Weight: 149 grams
  • Flight Time: 20 minutes
  • Video: 1080p 

Pros

  • Affordable price point
  • Easy-to-use controller
  • Compact size 
  • No need to register with FAA
  • In air flip mode 

Cons

  • No wind resistance 
  • Limited flight time 

The Holy Stone HS110D FPV RC Drone is a great option if you are looking for a travel drone that won’t break the bank. At under $100, this is one of the most affordable compact drones on the market. Its compact size also means it doesn’t require registration with the FAA—making it a nice choice for care-free flying.  The Holy Stone has a 120-degree “first-person view” camera and can shoot 1080p video. Flight time is shorter than other compact drones, and this drone lacks wind resistance, but this is to be expected, given the super low price point. The Holy Stone does include fun pre-programmed flight patterns like in-air flips, and features like altitude hold and landing assists. Intuitive in-app features allow users to control the drone through gestures or draw a flight path for the drone to follow. This is a great travel drone if you aren’t looking to spend a fortune to capture your out-of-town adventures. 

Best for professionals: DJI Mavic 3

Dan Bracaglia

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Specs

  • Weight: 895 grams
  • Flight Time: 46 minutes
  • Video: 5.1K

Pros

  • 4/3 CMOS Hasselblad Camera 
  • Advanced Omnidirectional Object sensing 
  • 15-kilometer transmission range 
  • Smart return to home feature 
  • Folding design 

Cons

  • Expensive, over 2K 
  • Requires registration with FAA 

If you are looking for a travel drone with all the pro-level features, look no further. The DJI Mavic 3 is the priciest option on our list, and because of its larger size must be registered with the FAA, but its foldable design still makes it an excellent option for travel. The DJI Mavic 3 is equipped with a 4/3 CMOS Hasselblad camera and a sensor that provides 12.8 stops of dynamic range—making for footage that has a lot more detail in both the highlights and the shadows. It can shoot 5.1K video up to 50fps, 4K video up to 120fps, and capture 20-megapixel 12-bit RAW stills. It has an impressive flight time of 46 minutes, a 15-kilometer transmission range, and advanced features like omnidirectional object sensing, with improved range—giving users way more time to react and prevent crashing into a tree while flying. Other pro-level features include Advanced Return To Home, which will automatically bring your drone back to you using the most energy-efficient route. Although the DJI Mavic 3 is expensive, the top-level features and impressive camera make it well worth the price point. 

Read our full review: DJI Mavic 3

Best for beginners: Ryze Tech Tello Mini Drone

Ryze Tech

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Specs

  • Weight: 79.9 grams 
  • Flight Time: 13 minutes
  • Video: 720p 

Pros

  • Lightweight build 
  • DJI-powered flight controller 
  • Good for kids 
  • No need to register with FAA

Cons

  • Very short flight time 
  • No wind resistance 
  • Only capable of shooting 720p video

Ryze Tech Tello Mini Drone Quadcopter is a great choice for the novice drone pilot. Although its flight time is much shorter than some of the other drones in this buying guide and video is limited to 720p, it’s extremely easy to operate. It also happens to have a DJI-powered flight controller for performing in-air tricks. The drone’s mobile programming app supports Scratch, which allows users to program corresponding movements using coding blocks. It can shoot 5-megapixel photos, and pre-programmed modes like Circle-360 and Up & Away make it easy to capture short clips even if you don’t know how to fly. Overall, this is a great starter drone for kids and adults who want to capture an aerial perspective while traveling. 

Best for photos: Parrot Anafi

Parrot

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Specs

  • Weight: 707 grams
  • Flight Time: 25 minutes 
  • Video: 4K 

Pros

  • Capable of capturing 21-megapixel images 
  • Features timer and burst mode shooting options
  • Folding design 
  • Built around a Sony CMOS sensor

Cons

  • Limited flight time 
  • Not great in low light 
  • No wind resistance 

If you primarily want to capture photos with your drone, the Parrot Anafi is a great choice. It can shoot 4K video at 60fps, but it really shines as a tool for photographers. The Parrot Anafi is built around a Sony CMOS sensor with a unique camera that offers a vertical 180-degree field of view. It has a vertical folding design that makes it easy to slide into a backpack with other gear—making it an ideal choice for travel. The navigation app is intuitive and easy to use. The price point falls right in the middle of the pack, making this an appealing option for a wide variety of budgets. 

What to consider when choosing a travel drone

When shopping for a travel drone, you should consider your budget and how you will be using the drone first and foremost.

Camera

We live in a 4K world at the moment, but camera tech doesn’t necessarily stop there. Some higher-end drones can capture 5K and beyond, allowing oversampled 4K footage with more detail or simply a bigger frame so you can crop in later while maintaining a full-res picture. Ideally, you’ll get 4K footage at 60fps with a reasonable megapixel count for photos. Of course, you’ll want to think about how you will use that footage later on. You may not need 4K at a high framerate if you’re trying to make a simple travel blog. In fact, it may hinder your editing process. Find a balance between easy edibility and high quality, then stick with it.

Weight

You’re traveling with these machines, so you want them to be as light as possible. Most only weigh a few pounds at most. But be sure to note the 250g threshold. A drone weighing 250 grams or more requires registration with the FAA before you can fly. Conveniently, our top pick on this list weighs 249 grams for this exact reason.

Obstacle avoidance

While drones have gotten easier to fly in recent years, you still have to navigate the learning curve. Unfortunately, tons of trees, houses, and power lines are littering that learning curve. Higher-end drones offer dedicated object avoidance systems that automatically stop a craft from smacking into something it shouldn’t. Top-tier models offer object avoidance in almost every direction, but more consumer models typically only see in front of them and sometimes to the side. It’s a nice touch if you’re learning and want to minimize possible damage.

Range

Some high-end drones can go nearly 20 miles away from their pilots, but local regulations and practical considerations make that unlikely for most users. If you’re considering two drones and opting toward one because it has a longer range, just be sure you will need that range. If all you plan is to fly it up into your neighborhood or over the lake, you don’t need a massive flight area.

Flight time

Drone batteries are small, and the juice inside can fade fast if conditions are less than perfect. Every gust of wind or fancy maneuver requires more power to execute. Our top pick, the DJI Mini 3 Pro, promises “up to 34 minutes” of flight time, but that “up to” is doing a lot of work. Add wind or complex movements, and that will drop quickly. You also couldn’t stay fully airborne for 34 minutes unless you’re cool with the craft falling out of the sky once the battery is exhausted.

Should you buy the Fly More combo?

DJI typically offers its drones on their own or as part of a Fly More combo, which includes a carrying case, extra rotors, and (most importantly) extra batteries. The Fly More combos typically offer a better deal than buying all the products together. And since you’re definitely going to want extra batteries (and a dedicated charger that can handle more than one cell at once), we recommend you invest upfront.

FAQs

Q: What type of drone is best for long-distance flying?

Generally speaking, the more expensive a drone is, the longer it will be able to stay in the air and have a longer transmission signal. Consumer drones that are best for long-distance flying include the DJI Mavic 3, which has a 15-kilometer transmission range and an impressive flight time of 46 minutes. While toy drones have a much more limited transmission range and flight time. Regardless of how far you are flying a drone, it’s important to keep it within sight.

Q: What to avoid when flying a travel drone?

Even if you are flying a compact drone that doesn’t need to be registered with the FAA, there are a number of things that you should avoid. You should keep your drone at or below 400 feet and have it within sight while flying. Don’t fly drones near airports, in restricted airspace, near emergency response efforts, or over stadiums or sporting events. Although many drones feature wind resistance, it’s also best to avoid flying your drone in inclement weather. 

Q: Are travel drones worth it?

If you are looking for a fun way to capture images and video footage away from home, a compact travel drone is a great way to do it. Whether you are bringing along an ultra-compact drone that doesn’t need to be registered with the FAA, or a more advanced foldable drone—these flying machines offer a unique perspective. Yes, we absolutely think that travel drones are worth the investment. 

Final thoughts on the best travel drones 

A travel drone is a great way to capture unique aerial perspectives with ease and is a worthy investment for travel vloggers, filmmakers, or families looking for a fun way to document their vacation. The DJI Mini 3 Pro takes the cake for being the best overall travel drone thanks to its impressive flight time, compact size, and video and photo capabilities. Although it’s small enough that you don’t need to register it with the FAA before you fly, it still manages to pack many pro-level features into its tiny body. If you are interested in a travel drone to capture your adventures, we recommend checking out any of these top options.  

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

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The best portable chargers for 2023 https://www.popsci.com/reviews/best-portable-chargers/ Fri, 29 Oct 2021 21:30:00 +0000 https://www.popsci.com/?p=405334
Peripherals photo
Amanda Reed

Don’t get caught with your power down. A portable charger can keep you up and running through all of life's emergencies.

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Peripherals photo
Amanda Reed

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Best multipurpose Anker PowerCore 1000 is the best portable charger. Anker PowerCore Fusion 10,000
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The Anker PowerCore Fusion 10,000 combines the convenience of portable battery and outlet-based charger in a single package.

Best for travel Belkin Gaming Power Bank is the best portable charger. Belkin Gaming Power Bank with Stand
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Belkin’s gaming charger with a stand lets you power up your phone while watching media or playing games.

Best for laptops A Anker 747 laptop charger on a blue and white background Anker 747 Power Bank
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The Anker 747 Power Bank power bank pulls out all the stops with its massive charging capacity.

Keeping a portable charger in your car, bag, or pocket prepares you if an emergency arises as you’re running out of power. Say you’re stuck in a raging blizzard, your car in a snowbank on the highway, and you need a tow if you don’t want to stay where you are overnight. No problem, you can just call for roadside assistance, right? That isn’t the case if your phone happens to run out of power and you have no way to charge it back up again. It’s not the case unless you carry a portable power bank, that is. A battery pack to charge your phone, laptop, and other devices can make all the difference when your battery’s nearly dead and draining fast. The right power bank will let you top off all your essential gear to get your devices through the day (or longer). Fortunately, we’ve collected some of the best portable chargers available and sorted them into categories that should fit most people’s needs.

How we chose the best portable chargers

When choosing the best portable chargers, I relied on my years of experience covering the tech industry. I’ve used portable power banks to keep my phone and other devices charged while covering events, conducting interviews, and recording presentations. In addition to my personal and professional testing, we’ve parsed reviews from consumers and other publications to find chargers that have made a strong impression on their owners. 

The best portable chargers: Reviews & Recommendations

Our choices for the best portable chargers run the gamut from small pocket-sized batteries for extending your phone’s battery life to big, beefy chargers that can power a mobile office. Depending on what devices you carry around daily or while traveling, there are different power banks for everyone.

Best overall: OtterBox Performance Fast Charge Power Bank

Amanda Reed

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Why it made the cut: This speedy power bank allows for 3.6x faster charging compared to other portable chargers and can power two devices at once.

Specs

  • Dimensions: 6.26x 3.08 x .92 inches
  • Weight: 15.3 ounces
  • Battery capacity: 20,000 mAh
  • Ports: 2 (one USB-C, one USB-A)
  • Charging speed: 18W

Pros

  • Fast charging
  • Can charge two devices at once
  • Drop protection

Cons

  • Heavy compared to other portable chargers

Otterbox makes some of our favorite MagSafe accessories, so it’s no surprise we love its powerful wired charger as well. The OtterBox Performance Fast Charge Power Bank gives you 20,000 mAh of juice to recharge your tablets and phones. And, with a USB-A port and a fast-charging USB-C port, you can charge two devices at once, no matter what brand. It comes with a USB-A to USB-C cable, so you won’t have to get one on the go, but it works fabulously with others you may have around the house, as we did in the above photo. An LED power indicator shows you how much power you have left, and the power bank is designed for durability thanks to trusted drop protection. Although it’s a little chonky, we’d rather carry around a powerhouse than be left in the dark and uncharged.

Best multipurpose: Anker PowerCore Fusion 10,000

Why it made the cut: The Anker PowerCore Fusion 10,000 combines the convenience of a portable battery and outlet-based charger in a single package.

Specs

  • Dimensions: 4.72 x 3.23 x 1.39 inches
  • Weight: 10.1 ounces
  • Battery capacity: 10,000mAh
  • Ports: One USB-A, one USB-C
  • Charging speed: 20W

Pros

  • Convenient size
  • Doubles as a wall outlet and battery pack
  • Charges multiple devices

Cons

  • Can be awkward to plug into some sockets

As the best multipurpose portable charger, the Anker PowerCore Fusion 10,000 is especially convenient, even among power banks. It’s a fairly small portable charger with two ports and a 10,000mAh battery, but you can also plug it into an outlet and draw power from there. This is extremely convenient for travelers and rolls two devices into one well-crafted package. Its only downside is that it’s a little larger and heavier than a standard wall-based charger. The shape can also make it awkward to fit into some places, and the weight might cause it to fall out of a loose socket.

Best for travel: Belkin Gaming Power Bank with Stand

Why it made the cut: Belkin’s gaming charger with a stand lets you power up your phone while watching media or playing games.

Specs

  • Dimensions: 6.21 x 1.56 x 4.02 inches
  • Weight: 11.8 ounces
  • Battery capacity: 10,000mAh
  • Ports: One USB-A, one USB-C
  • Charging speed: 12W

Pros

  • Stand makes continuing to use the phone while charging more convenient
  • Stand is retractable

Cons

  • Fast charging is hit or miss

It seems like combining a portable charger and a stand would be a no-brainer, but surprisingly few companies have actually made them. Belkin’s Gaming Power Bank with Stand is the best portable charger for travel. It offers a retractable shelf with a lip that makes it easy to continue enjoying media or games on your phone as it charges. Unfortunately, its fast-charging seems to be hit-or-miss: Some users report speedy refueling, while others aren’t as impressed with how quickly their devices get juiced up. It’s a great charger when you have a few hours to kill and need to top off your phone’s power, but not the most efficient option.

Best with flashlight: superallure Solar Charging Power Bank

superallure

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Why it made the cut: This power bank is powered by the sun and can give you some extra light in the great outdoors if your flashlight decides to take a day off.

Specs

  • Dimensions: 7.48 x 4.92 x 1.42 inches
  • Weight: 1.15 pounds
  • Battery capacity: 43,800 mAh
  • Ports: USB-C, USB-A
  • Charging speed: 15W

Pros

  • Built-in chargers
  • Solar-powered
  • Built-in flashlight is bright

Cons

  • Heavy

Sometimes you don’t need solar generator-level power, but you still need a bit of juice while adventuring the in the great outdoors. This one is solar-powered, Qi wireless charging compatible, and has USB-A and USB-C cords built-in—that’s one less thing in your pack. You can maybe even leave the flashlight at home—this charger also has a built-in flashlight. An IP65 rating makes it dust-resistant, with a bit of waterproofing on top. Plus, it can power 3-5 complete phone charges. Reviews note that customer service is great, and the power bank gave peace of mind while traveling in remote settings.

Best with wireless charging: Mophie Charge Stream

mophie

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Why it made the cut: Ditch the cables entirely with this Qi-enabled wireless portable charger that works across Android and iPhone.

Specs

  • Dimensions: 2.72 x 0.63 x 5.19 inches
  • Weight: 8.5 ounces
  • Battery capacity: 6,040 mAh
  • Ports: USB-A, USB-C
  • Charging speed: 10W

Pros

  • Pass-through charging enabled
  • Can charge wirelessly or with a cable
  • Can charge two devices at once

Cons

  • Shows dirt easily

No cables? No problem, thanks to this wireless power bank from Mophie. You’ll be able to charge using the power of magnets as long as your device is Qi-enabled. Simply place your phone on the portable charger and push the button to begin wireless charging. You can get 48 extra hours of battery depending on what you’re charging, and a USB port allows you to charge another device while using wireless charging. Our only complaint? It tends to show dirt easily. Its powerful charging and wireless transcendence across brands make up for this.

Best large: Goal Zero Sherpa Wireless Portable AC Power Bank

Goal Zero

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Why it made the cut: This large portable charger is like a mini generator in your pack.

Specs

  • Dimensions: 7.69 x 5.49 x 1.02 inches
  • Weight: 3.19 pounds
  • Battery capacity: 25,600 mAh
  • Ports: 2 USB-A, 2 USB-C, 1 AC port
  • Charging speed: 100W

Pros

  • Heavy-duty
  • Can charge laptops two times over
  • Solar generator power without the size

Cons

  • Expensive

We’ve reviewed Goal Zero’s Yeti 1000 Core generator in the past and gave it kudos for its durability and battery capacity. Goal Zero took both of those aspects and packed them into an ever smaller package with its Sherpa Wireless Portable power bank. It’s great if you need major power on the go without needing an entire solar generator. And you’ll get plenty of use out of it: this power bank can charge a smartphone 8 times; a tablet three times; a laptop two times; and a GoPro 18 times. It also supports wireless charging. Talk about a multi-hyphenate. Its aluminum unibody is durable, and it easily integrates with other Goal Zero products, like solar panels. It’s pricey, but we think it’s worth it if you’re looking for a tough portable charger that’s made to last.

Best for laptops: Anker 747 Power Bank

Anker

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Why it made the cut: This sleek laptop power bank can keep you powered in the coffee shop or library.

Specs

  • Dimensions: 7.2 x 3.23 x .95 inches
  • Weight: 26.4 ounces
  • Battery capacity: 26,600 mAh
  • Ports: Two USB-A, two USB-C
  • Charging speed: 87W

Pros

  • Recharges in 2.5 hours
  • High voltage protection
  • Can charge more than one device at the same time

Cons

  • No AC outlet

Those who leave their house to work in a coffee shop know the struggle of trying to find a precious outlet. Worry no longer, thanks to this portable laptop power bank from Anker, which can give your laptop enough juice while you wait for an outlet to open up. It’s built with Anker’s MultiProtect safety system, which combines temperature control and high-voltage protection for a safer charging experience. If you use up the portable charger’s power, fret not—it takes 2.5 hours to reach a full charge. Those who need an AC outlet to use their laptop charger, however, will be out of luck.

Best budget: INIU Portable Charger

Why it made the cut: The INIU portable charger is cheap and does a fine job powering your phone … plus it has a pawprint-shaped indicator light!

Specs

  • Dimensions: 5.2 x 2.7 x 0.5 inches
  • Weight: 7 ounces
  • Battery capacity: 10,000mAh
  • Ports: 2 USB-A, One USB-C
  • Charging speed: 15W

Pros

  • Has a built-in paw print indicator light
  • Extremely affordable
  • Cute LED logo

Cons

  • Reports of quality assurance issues

Sometimes you just need a product that does exactly what it’s supposed to for as little money as possible. The INIU Portable Charger is affordable and provides a 10,000mAh battery in a very slim form factor. Conveniently, it also has a built-in indicator light which can be a big help in a pinch, and its paw print makes looking at your power bank fun. Unfortunately, there are some reports of dead units, which means customers need to watch out for poor QA. Reports suggest that INIU customer service has done right by users who reported getting a nonfunctional unit, though, shipping out replacements quickly.

What to consider when buying the best portable chargers

Portable chargers come in a variety of shapes and sizes. For many, they’re just random bricks that you plug stuff into, with little to differentiate between them. While they may look the same, there are aspects of a charger’s design that vary, which you should keep in mind when picking one out. 

How much power can it hold? Will it fit in my pocket or my backpack? Does it have the ports to charge all my devices or just my phones? If you know these things, you can buy the right portable charger for your needs:

How big is the battery?

Portable chargers are really just fancy plastic and a circuit board wrapped around a battery. The most important thing you need to know about any portable charger is how big that battery is. Portable chargers measure their power storage in Milliamp Hours (mAh), a unit of measurement that shows how much power a battery can hold. The number of charges it can provide will depend on the specific device, but it’s a good way to get a general sense. 

If you plan to keep a laptop going through your workday or charge many devices simultaneously, you will likely want the largest battery possible, which tends to range between 2,000mAh and 10,000mAh for most users, depending on the devices they cart around.  If you’re just looking to top off your phone to get through a busy day, you can probably get something smaller. More storage translates to a larger, more expensive charger, so that’s definitely good reason to go small if that’s all you need.

How much space does it take up?

As we said, more power means a bigger battery pack. It doesn’t matter how impressive a portable charger’s specs are if it’s a pain to carry around. Power banks range in size from slim and pocket-sized to whopping boxes as big as a book. They can get heavy, too. While it can be tempting to get the biggest, most powerful charger, you will make a better choice if you’re realistic about your needs.

What are you charging?

When you choose a portable charger, you’ll want to remember what you will be using it for. Most people tend to buy chargers to top off their best tablet, new iPhone, Bluetooth headphones, or noise-cancelling earbuds: As a result, most portable battery packs are made for that purpose. If you’re looking to charge something bigger, like a laptop, you should make sure to get a charger that has the right ports for the job. For larger devices, you will also need to make sure the charging rate is actually high enough to replenish your laptop’s battery.

How quickly can it charge your devices?

The second major consideration when buying a portable charger is how fast it charges. Different batteries can charge devices at different rates, depending on the device and the cable used to charge. In general, portable chargers tend to be slower than plugging a device into a wall, but some are faster than others. Check the maximum charging rate, measured in watts (W), to determine how quickly most devices will charge.  For a portable charger, 18 watts is considered a good charging speed. 27 watts is excellent.

Sometimes companies will show a battery’s voltage and amperage rather than a rate in Watts: In that case, multiply the two numbers to get the rate in watts. For example: If a charger serves 5 volts at 2 amps (5V/2A), its charging rate is 10W. (5 x 2 = 10).

How fast does the battery pack charge itself?

It’s also important to look at how long you need to juice each charger back up to full capacity. When you’re in a pinch and pressed for time, knowing you can fall back on a fast-charging portable device offers peace of mind. A good charging rate, for example, is anywhere from 3 hours (111.11 mAh/min) to 4 hours (111.48 mAh/minute), though there have been packs that have charged back up to 100% in just 20 minutes or so. The larger the battery bank, the longer it will need to charge, especially when you factor in larger capacities. This rate may differ from pack to pack if the charger can power other devices. 

FAQs

Q: How much does a portable charger cost?

A portable charger can cost between $20-$300, depending on size and features.

Q: Will portable chargers damage my phone?

The circuitry inside portable chargers is meant to prevent the device from overcharging, but shouldn’t have any influence on how your phone charges. Instead, each phone has its own charging system that should detect when there are issues with power delivery. If a power bank isn’t delivering enough power or has a fault, most recent phones will disable the charging circuit to prevent any damage and notify the user of the issue.

Q: How long does a portable charger last?

Since portable chargers are batteries, they will eventually degrade. Like other batteries, a power bank’s long-term health depends on many factors. What battery technology it’s using, how often it’s discharged and recharged, and the quality of the charging circuitry can affect a battery pack’s ability to draw power. Most should last a few years, even with frequent use. If your battery dies within two years, you should contact the manufacturer.

Q: Should a portable charger get hot?

When using a power bank, both the phone and the portable charger will heat up. Batteries use chemical reactions to store and discharge energy. Some of that energy is lost as waste heat. This is normal, so there’s no need to worry if your battery and/or phone feel warm when using a portable charger. However, neither a power bank nor a phone should ever get so hot that it makes you recoil. If you feel like either device is irregularly hot, disconnect them from all other devices and move away until you’re sure it’s safe to resume using them.

Q: How do I know if a portable charger is compatible with my device?

Most portable chargers have a USB-A or USB-C port to plug a cable into, connecting you phone to the power bank. As long as you have the correct cable, you’re good. However, compatibility matters when considering wireless chargers. There are two words you should look out for: Qi and MagSafe. Qi wireless charging is an interface standard that works for both Android and iPhone devices. MagSafe is similar, but proprietary to Apple devices specifically. Check for these words in the product description of your phone and the charger you’re looking for.

Final thoughts on the best portable chargers

Possessing the best portable charger can be a real lifesaver under the right circumstances. There isn’t that much to the tech, but there’s still a surprising amount of variation from device to device. It pays to learn their ins and outs to tell the difference, whether you need a slim power bank to get a quick jolt or something massive that can keep a laptop going for days. No matter what, we can all agree on one thing: Nobody likes having a battery die on them.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

The post The best portable chargers for 2023 appeared first on Popular Science.

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An FTC one-two punch leaves Amazon and Ring with a $30 million fine https://www.popsci.com/technology/ftc-amazon-ring-fines/ Thu, 01 Jun 2023 20:00:00 +0000 https://www.popsci.com/?p=545190
Federal Trade Commission building exterior
The FTC is continuing to put the pressure on Amazon's business practices. Deposit Photos

The company and its home surveillance subsidiary are under fire for children's privacy law violations and mishandling data.

The post An FTC one-two punch leaves Amazon and Ring with a $30 million fine appeared first on Popular Science.

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Federal Trade Commission building exterior
The FTC is continuing to put the pressure on Amazon's business practices. Deposit Photos

The Federal Trade Commission’s ongoing attempt to rein in Amazon entered a new phase this week, with the regulatory organization recommending both the company and its home surveillance system subsidiary Ring receive multimillion dollar fines in response to alleged monopolistic practices and data privacy violations.

According to an FTC statement released on Wednesday, Amazon disregarded children’s privacy laws by allegedly illegally retaining personal data and voice recordings via its Alexa software. Meanwhile, in a separate, same-day announcement, the commission claims Ring employees failed to stop hackers from gaining access to users’ cameras, while also illegally surveilling customers themselves.

Amazon relies on its Alexa service and Echo devices to collect massive amounts of consumer data, including geolocation data and voice recordings, which it then uses to both further train its algorithms as well as hone its customer profiles. Some of Amazon’s Alexa-enabled products marketed directly to children and their parents collect data and voice recordings, which the company can purportedly retain indefinitely unless parents specifically request the information be deleted.  According to the FTC, however, “even when a parent sought to delete that information … Amazon failed to delete transcripts of what kids said from all its databases.”

[Related: End-to-end encryption now available for most Ring devices.]

Regulators argued these privacy omissions are in direct violation of the Children’s Online Privacy Protection Act (COPPA) Rule. First established in 1998, the COPPA Rule requires websites and online services aimed at children under 13-years-old to notify parents about the information collected, as well as obtain their consent.

According to the complaint, Amazon claimed children’s voice recordings were retained to help Alexa respond to vocal commands, improve its speech recognition and processing abilities, and allow parents to review them. “Children’s speech patterns and accents differ from those of adults, so the unlawfully retained voice recordings provided Amazon with a valuable database for training the Alexa algorithm to understand children, benefitting its bottom line at the expense of children’s privacy,” argues the FTC.

“Amazon’s history of misleading parents, keeping children’s recordings indefinitely, and flouting parents’ deletion requests violated COPPA and sacrificed privacy for profits,” said Samuel Levine, Director of the FTC’s Bureau of Consumer Protection, in Wednesday’s announcement. “COPPA does not allow companies to keep children’s data forever for any reason, and certainly not to train their algorithms.”

[Related: Amazon’s new warehouse employee training exec used to manage private prisons.]

The FTC’s proposed order includes deleting all relevant data alongside a $25 million civil penalty. Additionally, Amazon would be prohibited from using customers’ (including children’s) voice information and geolocations upon consumers’ request. The company would also be compelled to delete inactive children’s Alexa accounts, prohibit them from misrepresenting privacy policies, as well as mandate the creation and implementation of a privacy program specifically concerning its usage of geolocation data.

Meanwhile, the FTC simultaneously issued charges against Amazon-owned Ring, claiming the smart home security company allowed “any employee or contractor” to access customers’ private videos, and failed to implement “basic privacy and security protections” against hackers. In one instance offered by the FTC, a Ring employee “viewed thousands” of videos belonging to female Ring camera owners set up in spaces such as bathrooms and bedrooms. Even after imposing restrictions on customer video access following the incident, the FTC alleges the company couldn’t determine how many other workers engaged in similar conduct “because Ring failed to implement basic measures to monitor and detect employees’ video access.”

[Related: Serial ‘swatters’ used Ring cameras to livestream dangerous so-called pranks.]

The FTC’s proposed order against Ring would require the company to pay $5.8 million in fines to be directed towards consumer refunds. The company would also be compelled to delete any data, including facial information, amassed prior to 2018.

Amazon purchased Ring in 2018, and has since vastly expanded its footprint within the home surveillance industry. In that time, however, the company has found itself under fire on numerous occasions for providing video files to law enforcement entities without consumers’ knowledge, lax security, as well as promoting products via its much-criticized found footage reality TV show, Ring Nation.

The post An FTC one-two punch leaves Amazon and Ring with a $30 million fine appeared first on Popular Science.

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A graduation gift guide for grads who love the outdoors: From practical tools to personalized accessories https://www.popsci.com/reviews/best-gift-guide-for-grads-outdoor-gifts/ Tue, 25 May 2021 15:59:00 +0000 https://www.popsci.com/?p=366540
A lineup of the best grad gifts for those who love the outdoors on a white background.
Amanda Reed

We’ve compiled a gift guide for grads who can’t wait to get off campus and lose themselves (figuratively) in the great outdoors.

The post A graduation gift guide for grads who love the outdoors: From practical tools to personalized accessories appeared first on Popular Science.

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A lineup of the best grad gifts for those who love the outdoors on a white background.
Amanda Reed

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Best for campers Graduation gift guide with the best camping hammock Wise Owl Outfitters Hammock
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A durable option that doesn’t hurt the bank.

Best for hikers Two pair of socks in a grey color with written letters under them. Smartwool Hiking Crew Socks
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These socks are made of Merino wool, which will keep your feet warm and dry.

Best solar generator Best Solar Generators Jackery Portable Power Station Explorer 300
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Power small appliances while camping.

It feels safe to assume that—after spending the better part of many years cooped up inside classrooms, libraries, cafeterias, and/or dorm rooms—any grad is ready for a change of scenery, especially grads who love the actual outdoors. Once all their schoolwork is done, grades have been entered, and degrees are in hand, these grads will surely feel it’s time some exploits braving the elements, and you can help by giving graduation gifts for outdoor lovers that travel well. Wherever their love for the outdoors takes them, we have you covered with the best graduation gift guide for well-accessorized adventurers.

Best for campers: Wise Owl Outfitters Hammock  

Wise Owl Outfitters

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If your favorite grad is equipped with just about everything they need to make it through a backcountry trip, get them camping gifts to introduce even more relaxation and fun to their next outdoor escape. A camping hammock is a perfect way to sit back, take a nap, read a book, or drink a calming beverage outdoors. This is the best hammock from Wise Owl and weighs under 2 pounds, including the hanging straps, so it’s perfect for campers who prioritize portability. When packed down, it’s about the size of a grapefruit, so your grad should be able to easily carry it with them or keep it stashed away in their car. Each hammock comes with tree straps and carabiners for easy setup, with no need for any additional equipment. It comes in over 10 colors so that you can choose their favorite. It’s 9 feet long and 4.5 feet wide, with a 400-pound weight limit, which should be suitable for just about any user. You can even grab a two-person hammock (weighing only 5 ounces more) if they tend to go camping with a partner or friend.

Best for grad parties in the backyard or backcountry: Ultimate Ears WONDERBOOM 3

Brandt Ranj

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No graduation gift guide would be complete without some great speakers. If your recent grad is always on the go—heading out for day hikes, camping trips, beach hangouts, long bike rides, and more—you can’t go wrong gifting them a portable Bluetooth speaker. No matter where they are or what they are doing, a smartphone and a compact speaker will provide the perfect soundtrack for any outdoor activity. The Ultimate Ears WONDERBOOM 3 is an excellent option, weighing under 1 pound and equipped with a flexible handle that can easily attach to a backpack, bike basket, or belt loop. It’s only 4 inches tall, but the small, compact design doesn’t mean you sacrifice anything when it comes to sound. The portable speaker can reach up to 87 decibels (equivalent to standing next to a loud blender or vacuum) and produces full 360-degree sound coverage. This powerful Bluetooth speaker can also withstand the elements and is one of our favorite waterproof speakers for a good reason; it has an IP67 rating, which means it can survive being dropped into a body of water up to a meter deep for half an hour, plus it’s dirt/dust-resistant. In addition, the battery lasts a full 13 hours, so your grad can jam outside all day long. And, if they want to be a party-goer and a party-thrower, you can up the energy with a portable party speaker.

Best for hikers: Smartwool Hiking Crew Socks  

Smartwool

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A hiker is only as good as their socks are strong, so give a grad who loves to ramble amongst the rocks a pair that will last. While socks may seem like a simple gift, a quality pair or two is one of those hiking gifts that can go a long way. You’ll be taking care of an essential need any avid hiker has and investing in their overall outdoor experiences. Take it from us: nothing ruins a hike faster than angry blisters and constant friction. Smartwool hiking socks come in various colors and sizes, both men’s and women’s. From a tried and true brand, these socks are designed for rugged day hikes and moderate backpacking. An elasticized arch brace provides extra support, medium cushioning absorbs impact, and a flat-toe seam keeps things comfortable. Made from Merino wool and nylon, these socks will keep their feet warm even during cold winter hikes. If your loved one likes to embark on a variety of adventures, you can check out Smartwool’s other socks specifically designed for activities like running, cycling, skiing, and more. There’s a reason we listed them as our favorite wool socks.

Best for interval training to interviews: Garmin epix Pro and Garmin fēnix 7 Pro

Garmin

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Whether your grad is thinking more about the backcountry or the boardroom, they could use a smartwatch that helps them get where they need to be when they need to be there. And when it comes to multi-band GPS smartwatches, Garmin makes the best adventure accessories out there. Endurance athletes to purposeful wanderers can benefit from the rugged, sensor-embedded case, metrics-rich displays, and accurate navigation resources found in Garmin’s newest Pro editions of the company’s multisport timepieces—available in multiple sizes and colors with different types of scratch-resistant/solar-charging glass.

Best for your grad’s new apartment: Fuzzy Ink Wilderness Print

Fuzzy Ink

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The perfect grad gifts for outdoor lovers aren’t always the ones they’ll bring on their adventures—they can be ones they’ll appreciate before and after an excursion. A woodsy print or poster is a great present for a graduate who needs a little help decorating their new apartment. At this point, they might have all the gear they need, but what they probably don’t have are elegant pieces that express their personality but also provide a sense of maturity for an adult abode. This print from Fuzzy Ink is an artistic way for your grad to stay inspired. It measures 18 inches by 24 inches and is printed on coated paper with a matte finish, so they won’t have any trouble finding a great spot to display it. This print quietly depicts the beauty and awe that many outdoor enthusiasts find so mesmerizing about being in nature. From the crackling campfire to the expansive display of fir trees, this piece will surely bring joy to a grad who longs to roam around the forest.

Best for outdoor athletes: CamelBak Octane Dart Hydration Pack

CamelBak

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Any outdoor lover knows how important it is to stay hydrated. Whether hiking, cycling, or running, drinking water is key to preventing heat stroke, dehydration, fatigue, and other issues. Of course, a water bottle is the first thing we think of when it comes to H2O on the go; however, bottles can be bulky and cumbersome. So, if you want to get your grad a great outdoor gift that prioritizes function and efficiency, we recommend a CamelBak Hydration Pack. This multisport hydration backpack can hold 50 ounces of water and easily straps to your back with a long drinking tube and trap management to make hydrating hands-free. All they need to do is bite down and suck to get as much water as necessary—no need to stop during a long run or bike ride to grab a water bottle. The 3D vent mesh provides lightweight comfort and airflow, while front harness pockets can hold snacks, sunscreen, and other essentials. Reflectivity strips are added for extra safety during early morning or nighttime exercise. Your grad will be able to get a run in anytime, anywhere, and stay hydrated all the while. If you’re looking for more options, consider our list of the best hydration packs.

Best personalized gift: Engraved Compass

Etsy

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A personalized gift is always a good idea, especially when you’re celebrating a significant achievement. Giving a gift designed specifically for them—something special that only they will have—will let your grad know how much you care for and support them. If you want to give a personalized gift suited for the outdoors, check out these engraved compasses. You can choose from existing mountainscapes or upload your own favorite photos and illustrations to be perfectly recreated on the compass’s cover. Practically any part of the compass can include etching, so you won’t have to choose between a picture or a message. You can even ask for your own handwriting to be impressed on the metal so your graduate can take a piece of you with them no matter where they travel.

A useful graduation gift for the outdoors: Victorinox Swiss Army One-Hand Trekker Knife

Victorinox

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Outdoor enthusiasts know that it’s essential to prioritize gear that is lightweight, portable, and multipurpose. You will rarely find a seasoned camper lugging around a toolbox, though the need for various utensils and instruments is frequent. From quick repairs to food preparation, a survival tool or multipurpose knife is a helpful gift for anyone who spends a lot of time outside (they can also be pretty practical for indoor use). A Swiss Army knife is practical, classic, and cool. A household name when it comes to compact knives, the Trekker lives up to the hype. Its attached tools include a wood saw, large blade, 3-millimeter and 5-millimeter screwdrivers, wire stripper, can opener, tweezers, toothpick, and more. It’s one of those camping gifts that offer pretty much everything you need to make it through the trek without any issues. A knife like this is a thoughtful graduation gift that they are guaranteed to use for years to come.

Best thoughtful: Paddywax Candles Parks Collection

Paddywax Candles

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A candle is a fantastic gift for any graduate, signifying new beginnings and ordaining their adult apartment, or childhood bedroom, with sophisticated, balanced scents to keep them calm as they figure out their next steps. We’re a fan of scented gifts in general. But if your recent grad pines for the outdoors but doesn’t have time to travel just yet, a candle that brings nature to them is even more highly recommended. Paddywax has created a National Park Service-inspired collection that features the complex aromas of our country’s natural wonders. “Yellowstone” has hints of sagebrush and fir, the “Great Smoky Mountains” features Maplewood and moss, “Acadia” has seagrass and driftwood, while the “Grand Canyon” smells like cactus flowers and fern. Each candle is 11 ounces and has a burn time between 50 and 60 hours. When they’ve used up every drop of wax the candle has to offer, grads can upcycle the jars and repurpose them as plant pots, beauty tool holders, catch-alls, and more. Best of all, Paddywax donates a minimum of $25,000 per year to the National Parks Foundation, so your gift will not only go to your graduate but support the beautiful natural landmarks they love so much.

Best for day trips: YETI Packable Lunch Bag

YETI

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There is only one thing better than a day outdoors, and that is a day outdoors with snacks. Whether they plan on packing a lunch for a mountaintop picnic or bringing a few celebratory drinks to a grad party on the beach, beverages, and munchies are a must-have for your graduate’s next outside hang. A cooler is the best way to keep their tasty treats fresh all day long, so they never have to worry about their food heating up in the sun while they hike or swim. This YETI lunch bag is the perfect gift for grads to take food outside or pack a tasty lunch for their new job. Available in two sizes, a standard box or larger bag, and a variety of colorways, this pack uses Coldcell Flex insulation” technology and a “thermosnap” closure to keep food at the correct temperature, hot or cold. The adjustable grid means you can set the size by simply closing the top hook into any one of the available hoops. That way, the lunch bag can easily fit under a desk or be stuffed with snacks and drinks using all of its available 15.75 inches. This bag will pair well with just about any outdoor excursion, so your grad will be able to pack all the necessities and then some.

Best wearable: Outdoor Life Tee

540Brands

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If you want to get sweet, versatile graduation gifts guaranteed to make them smile, go with cute graphic tees like this one from Outdoor Life. Available in both men’s and women’s sizes, the “Go Play Outside” slogan is a fun way for you to tell everyone you see where your priorities lie. Made from 100-percent cotton and available in five colorways, this T-shirt will complement any hunter, angler, hiker, camper, surfer, sailor—just about any outdoor enthusiast you could think of. The soft material makes these tees particularly great for lounging around a campfire, though we recommend sizing up for maximum coziness—your grad will thank you.

Best for dirty hiking clothes: STNKY Bag Pro Wash Bag

STNKY

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STNKY’s Bag Pro Wash Bag is the simple gift our adventurous grad didn’t know they needed. The zip-up laundry bag can hold all of their dirty clothes during multi-day camping and hiking trips to prevent unwanted odors and bacteria from getting onto their clean ones. When it’s time to wash their clothes, the STNKY bag can be unzipped and turned inside out, at which point the clothes will fall into the washing machine without being touched. The bag itself is also machine washable, which is a nice bonus. Anyone who struggles to stay organized and sanitary during their next outdoor trip will love this gift.

Best portable firepit: Colsen Tabletop Portable Fire Pit

Colsen

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Sometimes setting up a big outdoor fire pit isn’t feasible or reasonable, but that doesn’t mean giving up s’mores for the night. Colsen’s Tabletop Portable Fire Pit runs on the company’s odorless liquid fuel, can be set up and ignited within a few minutes, and produces flame up to one foot tall for roughly 45 minutes. This is the ideal gift for someone who’s into glamping or wants a fire pit they can use indoors and out at any point during the year. The fact that you don’t need firewood to ignite it is particularly important because rainy weather can make dry fuel hard to find. And if you happen to have a grad living somewhere with a sizeable backyard/patio, you can give them a tasteful taste of the campfire life at home with a Solo Stove Bonfire firepit.

Best firestarter: Pull Start Firestarter

Pull Start Fire

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On the other hand, if you’re shopping for someone who spends days upon days out in the woods, they’re going to need Pull Start Firestarter. The fire starter is literally ignited by pulling a string built into its small box. Smoke will begin to billow from the box, indicating that the fire starter will be fully ignited within three seconds. It lasts up to 30 minutes once fully ignited. Beyond the convenience of not having to strike a match, keeping a pack of these around can be helpful during an emergency. It’s very difficult to light wet wood with a match, but prolonged exposure to a fire starter can do the trick. Whether they’re trying to save time or their own life, your grad will appreciate having a three-pack of Pull Start Firestarter in their pack.

Best hard cooler: RTIC Ultra-Light 55 Quart Hard Cooler

RTIC

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No campsite or boat is complete without a cooler that can reliably keep foods and beverages cold for hours—or days—at a time. If you’re shopping for a grad who’s planning a big summer trip, there’s a good chance Ultra-Light 55 Quart Hard Cooler is the perfect gift. The high-capacity cooler has three inches of insulation to maintain a consistent temperature inside, but it was engineered to be nearly a third lighter than the competition. This means it’ll be easier to carry when filled with ice, food, and dozens of cans. A cooler is one of the few gifts that may actually last your grad a lifetime, so it’s important to make the right choice. If you know they tend to pack extra light, RTIC also offers a 32-Quart model of this same cooler. Want more options? Check out more of the best coolers for camping.

Best for post-trail drinks: Hydro Flask 25 oz Ceramic Reusable Wine Bottle

Hydro Flask

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Enjoying a bottle of wine on a mountain sounds like a dream—but wine bottles and hiking don’t exactly mix. Give your grad the gift of sneaky boozing with this ceramic reusable wine bottle from Hydro Flask, which fits one 750 mL bottle of wine. It’s dishwasher-safe for easy cleaning and BPA-free for peace of mind. TempShield double-wall vacuum insulation keeps whites chilled and reds at room temp, and a ceramic-lined interior prevents flavor transfer. Although it’s advertised for wine, we think it’s also perfect for any spirit: Our favorite nature-inspired aqua vitae is Tin Cup Whiskey, cut with water from the Rocky Mountains and named after the tin cups miners used to drink. Need a more traditionally shaped option? Check out our favorite insulated water bottles.

Best unbreakable glasses: Silipint Silicone Pint Glasses

Silipint

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We’ve included the Silipint in our best camping gifts guide, but we think it makes a great gift especially for someone who may be too transient for real drinkware. These shatterproof “glasses” are made of 100% food-grade silicone, meaning you don’t have to deal with dangerous broken glass. Plus, they’re a fun, bright way to reduce the amount of plastic your grad may use between graduation and their very first job.

Best for ski lodge lounging: Chaco Ramble Puff Ankle Boot

Amanda Reed

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Chaco is known for its rugged and arch-supporting sandals, but we think their covered shoe offerings deserve some praise. The Ramble Puff Ankle Boot feels like a down parka for your feet, and they’re perfect for throwing on after a day of skiing or hiking. And, water-resistant rip-stop nylon means they’re not just indoor shoes—they can hold up in the great outdoors. If you’re looking for something that slips on, the Ramble Puff also comes in a clog style just as comfy and dreamy as its boot brethren. Our staff writer lives in both the clog and boot for women—don’t ask her to pick her favorite. Speaking of puffy stuff …

Best for camp comfort: Therm-a-Rest Honcho Poncho Down

ThermaRest

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We all know the importance of having appropriate layers for hiking—but what if you want to stay warm without having to wear the same jacket you’ve worn all day. The Honcho Poncho from Therm-a-Rest (also makers of excellent sleeping pads) combines the lightweight, warm properties of 650-Fill Nikwax Hydrophobic Down with a water-resistant 100% recycled polyester shell for a wearable sleeping bag. You can wear it around the campsite or campfire or lay it out in your tent and use it as a blanket. Its front pocket doubles as a stuff sack to make it easy to stow away back into your pack (or to use it as a lite pillow).

Best for camp chefs: Opinel Nomad Camping Kitchen Utensil Kit

Opinel

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These knives are great for a grad who trying to step up their outdoor cooking game. The kit comes with a serrated folding knife, a folding corkscrew knife, a pocket peeler, a beechwood cutting board, and a microfiber cleaning cloth that doubles as a travel pouch. A Virobloc safety ring is attached to all knives/peelers to make it safer to open and transport the kit. Your grad never has to struggle to cut a piece of campfire-cook beef or a hunk of crusty bread again.

Best hiking boot: Vasque Breeze Waterproof Hiking Boot

Tony Ware

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Your grad deserves a new pair of hiking boots for successfully climbing the mountain that is college. This one from Vasque is comfortable—our assistant managing editor (his ankles and dog shown above) says, “Lightweight, breathable, and comfortable to … boot … the Vasque Breeze immediately impressed me by requiring zero break-in, then continued to impress me with its stability and traction.” This means grads can climb the highly-graded mountain of post-grad life and worry more about their rent than getting blisters. They’re waterproof and made of sustainable, durable materials for years and years of adventures.

Best headlamp: BioLite 800 Pro

BioLite

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Grad gifts are all about shiny new things, and this new headlamp from BioLite should excite your night crawler. It packs 800 powerful, bright Lumens to illuminate any dark trails … or the way to the bathroom at night. Your grad will get 150 hours of power on low; seven hours on high; and 8 hours on reserve. It recharges using a micro USB port, and includes a Constant Mode for full illumination without auto-dimming. Plus, 3D SlimFit tech gives you bounceless, slipless, and near-weightless wear. Being comfortable and able to see where you’re stepping? Sounds like a win.

Best solar generator: Jackery Portable Power Station Explorer 300

Jackery

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Jackery topped our list of the best solar generators, and we love the company’s small-but-mighty portable power station that can be charged by a wall outlet, car outlet, and the sun (!!!). The solar panel isn’t included, but you can get this bundle that solves the lack of solar panel upon purchase. It’s easy to carry at 7.1 pounds and can charge up to six devices while your grad is on outdoor adventures. Your grad may go outdoors to unplug, but you’ll get peace of mind that their phone or other powered essentials won’t die out in the wilderness.

Things to consider when picking gifts for folks who love the outdoors

From lite hiking gifts to entertaining accessories to full-on camping gifts, you can help recent graduates prepare for whatever their next exploration entails. Or, for graduates moving to a new city or starting a new job and unsure they’ll get out much in those early post-grad days, give graduation gifts that remind them of what they love, from naturally scented candles to beautiful nature prints. The key is determining their favorite outdoor activities, skills, comfort level, and existing accouterments, allowing you to match the grad with the gift.

Final thoughts on the best graduation gifts for outdoors enthusiasts

We hope this graduation gift guide for grads who love the outdoors has filled you with ideas and inspiration for the perfect present. Whether you’re celebrating a trekking champion, kayaking aficionado, or dedicated camper, you’ll find grad gifts for outdoor lovers that fit their specific interests. After all, a graduation gift, whether it’s hiking gifts or camping gifts, or apartment decor, is about celebrating their accomplishments and encouraging them to follow their dreams while holding onto their passions. 


PopSci wants to help you find the most useful shopping recommendations for the best gifts regardless of occasion or preoccupation. Searching for more unique gifts? Check out our additional expert gift guides, including Best Gifts for Travelers, Sustainable Gifts, Gifts to Turn Any Kitchen Into a Café, New Gear for those New Year New You Resolutions, and Science Toys for Kids.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

The post A graduation gift guide for grads who love the outdoors: From practical tools to personalized accessories appeared first on Popular Science.

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Chilly climates may have forged stronger social bonds in some primates https://www.popsci.com/environment/cold-climates-social-evolution-primates/ Thu, 01 Jun 2023 19:00:00 +0000 https://www.popsci.com/?p=545169
A mother and baby golden snub nosed monkey. These primates live in mountainous regions of southwestern China. Longer periods of maternal care may have helped them form more complex societies.
Golden snub nosed monkeys live in mountainous regions of southwestern China. Longer periods of maternal care may have helped them form more complex societies. Guanlai Ouyang

Adapting to the cold may have opened up opportunities for larger, more friendly squads of monkeys.

The post Chilly climates may have forged stronger social bonds in some primates appeared first on Popular Science.

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A mother and baby golden snub nosed monkey. These primates live in mountainous regions of southwestern China. Longer periods of maternal care may have helped them form more complex societies.
Golden snub nosed monkeys live in mountainous regions of southwestern China. Longer periods of maternal care may have helped them form more complex societies. Guanlai Ouyang

Cold weather is prime time for humans to stay inside and snuggle up with loved ones. For our primate cousins, cuddling may even keep them healthy, as frosty temps and social bonds seem to go together like hot chocolate and marshmallows. Chilly temperature behavior, as it turns out, may also alter the course of evolution.

A study published June 1 in the journal Science found that a species’ long-term adaptation to life in extremely cold climates led to the evolution of successful social behaviors. Asian colobines living in colder regions saw genetic changes and adaptations to their social behaviors including extended care by mothers, which increased infant survival and the primates’ ability to live in the large complex multilevel societies we see today.

[Related: These primate ancestors were totally chill with a colder climate.]

An international team of researchers from the United States, China, the United Kingdom, and Australia studied how langurs and odd-nosed monkeys adapted over time. These members of the colobine family are leaf-eating monkeys that have been on Earth for about 10 million years. Their ancient ancestors dispersed across the planet’s continents and learned to live in tropical, temperate, and colder climates. 

“Virtually all primates are social and live in social groups,” study co-author and  University of Illinois Urbana-Champaign anthropologist Paul A. Garber said in a statement. “But the groups differ in size and cohesiveness. There are those that live in units of two or three individuals and others living in communities of up to 1,000 individuals.”

According to Garber, genomic studies suggest that the harem unit of organization—one male with two or more females and their offspring—was the ancestral norm for Asian colobines. Males are intolerant of other rival males and will fight to protect their turf. In some species, the females will stay with their natal group, while in others, both sexes leave to join or form new harems.

More complex societies formed over time. Some odd-nosed monkeys still form harems, but aren’t territorial. “This means their group territories can overlap and there are times they may come together to forage, rest and travel,” said Garber. 

A group of golden snub nosed monkeys consisting of three larger monkeys and one baby.
A group of golden snub nosed monkeys. CREDIT: Guanlai Ouyang.

Snub-nosed monkeys form a multilevel or modular society where multiple harems remain together throughout the year and create a large, cohesive breeding band. The team on this study recorded a society of about 400 individuals and breeding between individuals from different harems was common in golden snub-nosed monkeys. This inter-harem breeding happened roughly 50 percent of the time.

The study used ecological, geological, fossil, behavioral, and genomic analyses, and found that the colobine primates that lived in colder places tended to live in larger and more complex social groups. The glacial periods over the past six million years likely promoted the selection of genes that are involved in cold-related energy metabolism and hormonal regulation in the nervous system.

[Related: Baboons can recover from childhood trauma with a little help from their friends.]

Black-and-white snub-nosed monkeys in some parts of China live in low-oxygen elevations up to about 13,500 feet where night time temperatures can drop below zero on the coldest evenings. The Odd-nosed monkeys living in extremely cold locations developed more efficient pathways for dopamine and oxytocin. Oxytocin particularly is an important neurohormone for social bonding and this hormonal efficiency may lengthen the time a mother monkey takes care of her baby. This led to longer periods of breast-feeding and increase in infant survival.  

These adaptive changes appear to have further strengthened the relationships between individual monkeys, increased tolerance between males, and encouraged the evolution of more complex and larger multi level societies that go a long way. Strong social bonds can even help gut bacteria health in some monkeys.

In future studies, the team is interested in studying how changes in mating and social behavior may be the result of genetic changes from past environments and other social factors from the past. 

“With climate change becoming an hugely important environmental pressure on animals, it is hoped that this study will raise awareness for the need to investigate what course social evolution will take as the prevailing climate changes,” study co-author and University fo Western Australia biological anthropologist Cyril Grueter said in a statement. “Our finding that complex multilevel societies have roots stretching back to climatic events in the distant evolutionary past also has implications for a reconstruction of the human social system which is decidedly multilevel.”

The post Chilly climates may have forged stronger social bonds in some primates appeared first on Popular Science.

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6 clever ways to reuse silica gel packets https://www.popsci.com/environment/uses-for-silica-gel-packets/ Wed, 27 Jul 2022 16:00:00 +0000 https://www.popsci.com/?p=458500
Opened silica gel packet on a wood countertop, ready for someone to find another use for them.
These little silica beads have a lot more uses than you may think. multifacetedgirl / Pixabay

Reduce plastic waste while keeping your prized possessions safe from moisture damage.

The post 6 clever ways to reuse silica gel packets appeared first on Popular Science.

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Opened silica gel packet on a wood countertop, ready for someone to find another use for them.
These little silica beads have a lot more uses than you may think. multifacetedgirl / Pixabay

If you’ve bought shoes, torn into beef jerky, or taken certain medication recently, you have likely handled at least one tiny silica gel packet. After briefly wondering why your new backpack contained a squishy little warning-labeled pillow, you probably chucked it into the garbage with the rest of the packaging.

Yet those little packets are as useful as they are ubiquitous, and you can find plenty of uses for silica gel around your home. It’s better to give them a second, third, or fourth life instead of sending them directly to the landfill

What is silica gel?

Before we get into alternative uses, it helps to understand why these silicone dioxide-based packets are in so many products. The jewelry-like silica gel beads are a desiccant, a category of materials used to keep products dry by attracting water to their surface (meaning they adsorb, not absorb, moisture). Their moisture-wicking power makes silica gel packets immensely appealing to manufacturers, preventing water damage to products in transit or sitting on store shelves.

Although silica beads are not gems, the porous mineral does come from the ground. Silica is harvested through a “straightforward” mining process using open pits or dredging, according to Robert Goodin, a mineral commodity specialist with the US Geological Survey’s National Minerals Information Center. He says this usually removes vegetation and disturbs the ground’s top layer, and adds that explosive charges will occasionally be used to break apart the rock.

[Related: Which expiration dates actually matter?]

“These little silica gel packets, they’re in everything, but [use in desiccation is] actually a very small percentage of what this industrial sand is used for,” Goodin explains. “It’s less than 1 percent of the eventual end use.” He estimates that over 60 percent of silica sand—similar to regular sand but with much more silica—goes to the oil and gas industry for fracking and other needs. Glass production uses up another roughly 10 percent.

“Recently, [the US has] been the top producer, a major exporter and self-sustaining in a lot of these end-uses for silica, so we have a strong silica—or industrial sand—mining industry” in this country,” Goodin says.

What happens if you eat silica gel?

Despite their ominous, all-caps warnings about consumption, silica gel packets are generally considered non-toxic. The real concern is the size of the beads—it’s pretty easy for a child to choke on the packet or the beads within it, although some beads are large enough for adults to choke on, too. Swallowing silica gel can also lead to dehydration, which could irritate your throat and nose, and cause stomach pains, vomiting, constipation, or nausea.

Even so, spending a lot of time up close with silica can lead to health problems. According to Goodin, industrial workers exposed to silica dust may develop respiratory illnesses if inhaled.

And Britta Baechler, senior manager of ocean plastics research at Ocean Conservancy, notes that some silica gel packets feature a color-changing moisture indication. These aren’t supposed to be used near food and contain a compound known as cobalt chloride, which several chemical manufacturers list as an irritant and a carcinogen.

“Overall it seems that when they do not contain cobalt chloride, silica gel packets are relatively safe to use,” Baechler says. Nevertheless, you should avoid reusing these packets for any food-adjacent uses, just in case.

How to use silica gel around your home

Even if you shouldn’t use silica gel packets around food, there are still plenty of ways to safely reuse the desiccant, but you’ll have to reactivate the packets first.

Keep meaningful papery goods safe

Passports, birth certificates, and insurance papers are all easier to use when they aren’t soaking wet. While they may survive a round in the washing machine or dryer, keeping them as dry as possible makes the most sense. Silica gel packets can do just the trick for your box of important papers.

Paper-based heirlooms—think old books, Gramma’s wedding photo album or your children’s handmade holiday decorations—are also frequently threatened by insidious moisture, leaks, or humidity. Tuck some silica packets into your memory box and breathe a little easier.

Protect—or revive—electronics

You’ll need quite a few to be effective, but keeping silica gel packets packed away with cameras, film, smartphones, video tapes, laptops, and other water-sensitive electronics and accessories can keep them safe until subsequent use. Dropped your phone or tablet in the bath? Try using a slew of silica gel packets to adsorb the water and bring the device back from its watery doom.

Keep moisture-prone areas dry

Your bathroom, basement and attic, are all places that can accumulate moisture easily. Adding silica gel packets near areas that might fog up, like windows and mirrors, can help prevent that slightly-annoying or even damaging condensation and slow down the growth of mold.

Abate rust and tarnish concerns

Metal tools, razors, or materials risk rusting if exposed to moisture. Add some silica gel packets to your toolbox, for example, to reduce that chance of exposure. You can also use the packets to mitigate tarnish or corrosion of metals, so stick some in your jewelry box, silverware drawer, or tackle box.

Dry out your travel gear

The ickiest part about swimming is figuring out how to bring home a soggy bathing suit. But storing the suit with silica gel packets can help wick that moisture away and make it easier to transport. That goes for other travel gear, too; tents, sleeping bags, and luggage can all benefit from a little less wetness.

[Related: The right way to wash your waterproof clothes]

Preserve unique, special-purpose, or expensive materials

Leather and sports gear might be fine in a bit of rain, but prolonged exposure to moisture can ruin, stain or mildew different specialty fabrics. And any boxes of seasonal clothing or items you only use once a year (think: holiday sweaters and decor) might get wet long before you open them up and realize it. Silica gel packets tucked into pockets and between layers of fabrics can adsorb water before anything is ruined. Other water-sensitive materials such as seed packets can benefit from nearby silica gel packs, and you can even speed up drying flowers with silica. 

What happens to silica beads in the environment?

For most silica gel packets, a single use is all they’re likely going to get. Still, the packets that encase the silica gel beads are a relatively understudied source of single-use plastic pollution, Baechler explains.

“By function, [silica gel packets are] a desiccant,” Baechler says. “So if these packets are being dumped into waterways, or even onto land, it can dry out whatever environment ends up in, which can be problematic.”

[Related: How to go zero-waste at the grocery store]

Additionally, silica works as an insecticide for indoor and outdoor uses in powdered form on “stored grain, other food, feed and ornamentals; in food handling areas; and on pets and their living/sleeping quarters,” according to a US Environmental Protection Agency fact sheet.

“That means it’s being applied in an environmental setting,” Baechler adds. “I would surmise that if silica is used in this way and released into the environment, especially in large quantities that could have some impacts in terms of water retention in ecosystems and, perhaps, impacts on [animal and plant life] as well.” 

For now, at least, the environmental effects of silica gel are uncertain, but we think it’s better to be safe than sorry.

This story has been updated. It was originally published on July 27, 2022.

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How do sound waves work? https://www.popsci.com/reviews/what-are-sound-waves/ Wed, 28 Jul 2021 00:00:00 +0000 https://www.popsci.com/?p=384369
Blue sine waves on a black background. Sine waves, like these, are a way to envision how sound works.
Whether you’re recording or just vibin’, the science of sound can be cool. Pawel Czerwinski / Unsplash

Sound waves are vibrations that can move us, hurt us, and maybe even heal us.

The post How do sound waves work? appeared first on Popular Science.

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Blue sine waves on a black background. Sine waves, like these, are a way to envision how sound works.
Whether you’re recording or just vibin’, the science of sound can be cool. Pawel Czerwinski / Unsplash

We live our entire lives surrounded by them. They slam into us constantly at more than 700 miles per hour, sometimes hurting, sometimes soothing. They have the power to communicate ideas, evoke fond memories, start fights, entertain an audience, scare the heck out of us, or help us fall in love. They can trigger a range of emotions and they even cause physical damage. This reads like something out of science fiction, but what we’re talking about is very much real and already part of our day-to-day lives. They’re sound waves. So, what are sound waves and how do they work?

If you’re not in the industry of audio, you probably don’t think too much about the mechanics of sound. Sure, most people care about how sounds make them feel, but they aren’t as concerned with how the sound actually affects them. Understanding how sound works does have a number of practical applications, however, and you don’t have to be a physicist or engineer to explore this fascinating subject. Here’s a primer on the science of sound to help get you started.

What’s in a wave

When energy moves through a substance such as water or air, it makes a wave. There are two kinds of waves: longitudinal ones and transverse ones. Transverse waves, as NASA notes, are probably what most people think of when they picture waves—like the up-down ripples of a battle rope used to work out. Longitudinal waves are also known as compression waves, and that’s what sound waves are. There’s no perpendicular motion to these, rather, the wave moves in the same direction as the disturbance.

How sound waves work

Sound waves are a type of energy that’s released when an object vibrates. Those acoustic waves travel from their source through air or another medium, and when they come into contact with our eardrums, our brains translate the pressure waves into words, music, or signals we can understand. These pulses help you place where things are in your environment.

We can experience sound waves in ways that are more physical, not just physiological, too. If sound waves reach a microphone—whether it’s a plug-n-play USB livestream mic or a studio-quality microphone for vocals—it transforms them into electronic impulses that are turned back into sound by vibrating speakers. Whether listening at home or at a concert, we can feel the deep bass in our chest. Opera singers can use them to shatter glass. It’s even possible to see sound waves sent through a medium like sand, which leaves behind a kind of sonic footprint. 

That shape is rolling peaks and valleys, the signature of a sine (aka sinusoid) wave. If the wave travels faster, those peaks and valleys form closer together. If it moves slower, they spread out. It’s not a poor analogy to think of them somewhat like waves in the ocean. It’s this movement that allows sound waves to do so many other things. 

It’s all about frequency

When we talk about a sound wave’s speed, we’re referring to how fast these longitudinal waves move from peak to trough and back to peak. Up … and then down … and then up … and then down. The technical term is frequency, but many of us know it as pitch. We measure sound frequency in hertz (Hz), which represents cycles-per-second, with faster frequencies creating higher-pitched sounds. For instance, the A note right above Middle C on a piano is measured at 440 Hz—it travels up and down at 440 cycles per second. Middle C itself is 261.63 Hz—a lower pitch, vibrating at a slower frequency.

Sine waves. Illustration.
It’s sine waves of various frequencies that send waves of emotion through you. Deeper troughs mean higher tones. Wikipedia

Understanding frequencies can be useful in many ways. You can precisely tune an instrument by analyzing the frequencies of its strings. Recording engineers use their understanding of frequency ranges to dial in equalization settings that help sculpt the sound of the music they’re mixing. Car designers work with frequencies—and materials that can block them—to help make engines quieter. And active noise cancellation uses artificial intelligence and algorithms to measure external frequencies and generate inverse waves to cancel environmental rumble and hum, allowing top-tier ANC headphones and earphones to isolate the wearer from the noise around them. The average frequency range of human hearing is 20 to 20,000 Hz.

What’s in a name? 

The hertz measurement is named for the German physicist Heinrich Rudolf Hertz, who proved the existence of electromagnetic waves. 

woman talking through a handheld megaphone
Can you hear me now? Cottonbro / Pexels

Getting amped

Amplitude equates to sound’s volume or intensity. Using our ocean analogy—because, hey, it works—amplitude describes the height of the waves.

We measure amplitude in decibels (dB). The dB scale is logarithmic, which means there’s a fixed ratio between measurement units. And what does that mean? Let’s say you have a dial on your guitar amp with evenly spaced steps on it numbered one through five. If the knob is following a logarithmic scale, the volume won’t increase evenly as you turn the dial from marker to marker. If the ratio is 4, let’s say, then turning the dial from the first to the second marker increases the sound by 4 dB. But going from the second to the third marker increases it by 16 dB. Turn the dial again and your amp becomes 64 dB louder. Turn it once more, and you’ll blast out a blistering 256 dB—more than loud enough to rupture your eardrums. But if you’re somehow still standing, you can turn that knob one more time to increase your volume to a brain-walloping 1,024 decibels. That’s almost 10 times louder than any rock concert you’ll ever encounter, and it will definitely get you kicked out of your rehearsal space. All of which is why real amps aren’t designed that way.

Twice as nice

We interpret a 10 dB increase in amplitude as a doubling of volume. 

Parts of a sound wave

Timbre and envelope are two characteristics of sound waves that help determine why, say, two instruments can play the same chords but sound nothing alike. 

Timbre is determined by the unique harmonics formed by the combination of notes in a chord. The A in an A chord is only its fundamental note—you also have overtones and undertones. The way these sound together helps keep a piano from sounding like a guitar, or an angry grizzly bear from sounding like a rumbling tractor engine. 

[Related: Even plants pick up on good vibes]

But we also rely on envelopes, which determine how a sound’s amplitude changes over time. A cello’s note might swell slowly to its maximum volume, then hold for a bit before gently fading out again. On the other hand, a slamming door delivers a quick, sharp, loud sound that cuts off almost instantly. Envelopes comprise four parts: Attack, Decay, Sustain, and Release. In fact, they’re more formally known as ADSR Envelopes. 

  • Attack: This is how quickly the sound achieves its maximum volume. A barking dog has a very short attack; a rising orchestra has a slower one. 
  • Decay: This describes how fast the sound settles into its sustained volume. When a guitar player plucks a string, the note starts off loudly but quickly settles into something quieter before fading out completely. The time it takes to hit that sustained volume is decay. 
  • Sustain: Sustain isn’t a measure of time; it’s a measure of amplitude, or volume. It’s how loud the plucked guitar note is after the initial attack but before it fades out. 
  • Release: This is the time it takes for the note to drift off to silence. 

Speed of sound

Science fiction movies like it when spaceships explode with giant, rumbling, surround-sound booms. However, sound needs to travel through a medium so, despite Hollywood saying otherwise, you’d never hear an explosion in the vacuum of space. 

Sound’s velocity, or the speed it travels at, differs depending on the density (and even temperature) of the medium it’s moving through—it’s faster in the air than water, for instance. Generally, sound moves at 1,127 feet per second, or 767.54 miles per hour. When jets break the sound barrier, they’re traveling faster than that. And knowing these numbers lets you estimate the distance of a lightning strike by counting the time between the flash and thunder’s boom—if you count to 10, it’s approximately 11,270 feet away, or about a quarter-mile. (Very roughly, of course.) 

A stimulating experience

Anyone can benefit from understanding the fundamentals of sound and what sound waves are. Musicians and content creators with home recording set-ups and studio monitors obviously need a working knowledge of frequencies and amplitude. If you host a podcast, you’ll want as many tools as possible to ensure your voice sounds clear and rich, and this can include understanding the frequencies of your voice, what microphones are best suited to them, and how to set up your room to reflect or dampen the sounds you do or do not want. Having some foundational information is also useful when doing home-improvement projects—when treating a recording workstation, for instance, or just soundproofing a new enclosed deck. And who knows, maybe one day you’ll want to shatter glass. Having a better understanding of the physics of sound opens up wonderful new ways to explore and experience the world around us. Now, go out there and make some noise!

This post has been updated. It was originally published on July 27, 2021.

The post How do sound waves work? appeared first on Popular Science.

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This PDF Chrome extension might contain malware https://www.popsci.com/technology/chrome-extension-malware-pdf-toolbox/ Thu, 01 Jun 2023 18:00:00 +0000 https://www.popsci.com/?p=545125
chrome browser icons
Growtika / Unsplash

The extension could be used to access every web page you currently have open in your browser.

The post This PDF Chrome extension might contain malware appeared first on Popular Science.

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chrome browser icons
Growtika / Unsplash

An independent security researcher has found malicious code in 18 Chrome extensions currently available in the Chrome Web Store. Combined, the extensions have over 57 million active users. It’s yet more evidence that Chrome extensions need to be evaluated with a critical eye. 

Chrome extensions are apps built on top of Google Chrome that allow you to add extra features to your browser. The tasks that this customizable feature can do are wide-ranging, but some popular extensions can auto-fill your password, block ads, enable one-click access to your todo list, or change how a social media site looks. Unfortunately, because Chrome extensions are so powerful and can have a lot of control over your browsing experience, they are a popular target for hackers and other bad actors. 

Earlier this month, independent security researcher Wladimir Palant discovered code in a browser extension called PDF Toolbox that allows it to inject malicious JavaScript code into any website you visit. The extension purports to be a basic PDF processor that can do things like convert other documents to PDF, merge two PDFs into one, and download PDFs from open tabs. 

It’s that last feature that leaves PDF Toolbox open for bad intentions. Google requires extension developers to only use the minimum permissions necessary. In order to download PDFs from tabs that aren’t currently active, PDF Toolbox has to be able to access every web page you currently have open. Without this feature, it would not be able to pseudo-legitimately access your browser to the same extent.

While PDF Toolbox seemingly can do all the PDF tasks it claims to be able to, it also downloads and runs a JavaScript file from an external website which could contain code to do almost anything, including capture everything you type into your browser, redirect you to fake websites, and take control of what you see on the web. By making the malicious code resemble a legitimate API call, obfuscating it so that it’s hard to follow, and delaying the malicious call for 24 hours, PDF Toolbox has been able to avoid being removed from the Chrome Web Store by Google since it was last updated in January 2022. (It is still available there at the time of writing, despite Palant lodging a report about its malicious code.) 

Palant had no way of confirming what the malicious code in PDF Toolbox did when he first discovered it. However yesterday, he disclosed 17 more browser extensions that use the same trick to download and run a JavaScript file. These include Autoskip for Youtube, Crystal Ad block, Brisk VPN, Clipboard Helper, Maxi Refresher, Quick Translation, Easyview Reader view, Zoom Plus, Base Image Downloader, Clickish fun cursors, Maximum Color Changer for Youtube, Readl Reader mode, Image download center, Font Customizer, Easy Undo Closed Tabs, OneCleaner, and Repeat button, though it is likely that there are other infected extensions. These were only the ones that Palant found in a sample of approximately 1,000 extensions.

In addition to finding more affected extensions, Palant was able to confirm what the malicious code was doing (or at least had done in the past). The extensions were redirecting users’ Google searches to third-party search engines, likely in return for a small affiliate fee. By infecting millions of users, the developers could rake in a tidy amount of profit. 

Unfortunately, code injection is code injection. Just because the malicious JavaScript fairly harmlessly redirected Google searches to alternative search engines in the past, doesn’t mean that it does so today. “There are way more dangerous things one can do with the power to inject arbitrary JavaScript code into each and every website,” writes Palant.

And what kind of dangerous things are those? Well, the extensions could be collecting browser data, adding extra ads to every web page someone visits, or even recording online banking credentials and credit card numbers. Malicious JavaScript running unchecked in your web browser can be incredibly powerful. 

If you have one of the affected extensions installed on your computer, you should remove it now. It’s also a good idea to do a quick audit of all the other extensions you have installed to make sure that you are still using them, and that they all look to be legitimate. If you not, you should remove them too. 

Otherwise, treat this as a reminder to always be vigilant for potential malware. For more tips on how to fight it, check out our guide on removing malware from your computer.

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Klipsch The Nines loudspeakers review: Huge hi-fi sound, simple setup https://www.popsci.com/gear/klipsch-the-nines-powered-speakers-review/ Thu, 01 Jun 2023 17:05:00 +0000 https://www.popsci.com/?p=545035
Klipsch The Nines powered speakers outside on a table in the sun
The Nines succeed because of how Klipsch thinks inside the box, figuring out how to back the timeless, breathing performance of horn-loaded drivers with contemporary connectivity. Sarah Jones

Klipsch’s flagship powered bookshelf speakers are high-performance media multitaskers, seamlessly fusing nostalgic style with modern versatility—no receiver needed.

The post Klipsch The Nines loudspeakers review: Huge hi-fi sound, simple setup appeared first on Popular Science.

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Klipsch The Nines powered speakers outside on a table in the sun
The Nines succeed because of how Klipsch thinks inside the box, figuring out how to back the timeless, breathing performance of horn-loaded drivers with contemporary connectivity. Sarah Jones

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

The Nines are the latest in Klipsch’s wildly popular family of retro-modern, media-friendly powered speakers, which launched in 2020 with The Fives, compact powerhouses that claimed the first HDMI-ARC connection in a bookshelf speaker. Like The Fives and The Sevens before them, a pair of Klipsch The Nines speakers ($1,499) aims to deliver an expressive audio experience that seamlessly integrates with just about any entertainment setup, while exuding a heritage-inspired aesthetic that pays homage to mid-century elegance.

Sarah Jones

SEE IT

Overview

  • The Nines are the top of three models in the Klipsch line of Heritage-inspired powered bookshelf (or standmount) speakers.
  • The brand’s signature horn-mounted driver delivers a fleshy, high-fidelity presence across an almost multidimensional soundstage.
  • These are a great pair of speakers if you have numerous sources but can’t find the space or budget for discrete components.

Pros

  • The sound—classic Klipsch concert-like sound
  • Plentiful inputs and robust internal amps mean you can skip the added expense of an AV receiver
  • HDMI-ARC makes integration in a home theater with a modern TV easy
  • Can decode most digital files up to 24-bit/192 kHz resolution
  • A built-in phono preamp means no external hardware is needed with moving magnet cartridge turntables
  • Dynamic Bass feature can provide enough low-end that a subwoofer is a bonus, not a requirement (a plus in apartments)

Cons

  • Price (though they’re a relative bargain compared to many connected stereo speakers)
  • Height, weight, and vibration produced mean you need an extremely sizable, sturdy bookshelf, so it’s just better to pay extra for stands
  • An external phono preamp can still outperform the build-in signal path

Verdict: Klipsch The Nines speakers exude retromodern style and hypermodern versatility, making them a, well, sound investment for audio-video audiophiles.

The build

The Nines’ warm-and-cozy retro exterior belies their high-tech innards. Vintage-inspired cabinets are finished with handcrafted wood veneers and top-mounted brushed-metal input-selection and volume dials. Speakers are available in walnut or ebony and feature removable magnetic grilles; I left mine off. (A collectible McLaren Edition, designed in partnership with McLaren Racing, is finished in the vibrant orange and white motif of the McLaren F1 dynasty.)

When you describe “the Klipsch sound,” anyone familiar with the brand will immediately think of the visually and audibly recognizable horns, with their clear, commanding presence. The Nines are two-way powered speakers featuring 1” titanium tweeters on Klipsch’s proprietary Tractrix horns. These 90° x 90°, silicone-composite horns stretch from edge to edge, a design optimized for the most efficient high-frequency transfer, for more detailed, accurate sound. (This proprietary technology also aims to minimize reverb from sound reflecting off walls.) Woofers are all-new 8” long-throw fiber composite cones, and cabinets feature rear-firing bass-reflex ports.

Minimalists, rejoice: Because The Nines are self-powered speakers, there’s no need to connect an external amp, receiver, or even a phono preamp. The Nines use a bi-amped design, featuring a built-in 240W RMS (480W peak) amplifier—100 watts to each woofer and 20 watts to each tweeter—optimized with a sophisticated DSP package integrating crossovers, limiters, and EQ.

When it comes to connecting all your favorite sound sources, from your TV to your turntable, these speakers are truly ready to rock (or jazz or hip-hop or house, etc.). Inputs include integrated HDMI-ARC, USB-B, optical, and analog 3.5mm; high-res aficionados will be happy to learn that digital-to-analog conversion is at 192 kHz/24-bit. (One caveat: The Nines do not accept files in the MQA or FLAC formats, so you’ll need to decode them to PCM at your source.) The Nines also have a built-in phono preamp, with a switchable phono/line RCA in and a ground connection, plus a subwoofer out (with a 60Hz crossover). Finally, the Nines offer Bluetooth 5.0 connectivity, including aptX, aptX HD, and AAC support (the former two commonly found on Android devices and the latter the native Apple protocol). However, there is no built-in WiFi/AirPlay/Chromecast/Spotify Connect, etc.

Everything you need to connect your speakers is in the box, including a proprietary four-conductor cable that connects the powered speaker to the secondary speaker (either speaker can serve as left or right); an extension speaker cable; and HDMI, USB-B to USB-A, and AC power cables, plus a no-frills remote (AAA batteries included, though we always recommend rechargeables).

These are big, brawny boxes, measuring 19 x 9.5 x 13 inches, weighing around 28 pounds each, and approaching the size of commercial studio monitors. It’s advisable to place these musical monoliths on stands for optimal response and to avoid vibrations interfering with your turntable. (Klipsch stands feature hidden cable channels and threaded inserts for securing your speakers.) 

Setup is plug-and-play simple and takes just minutes. (A quick note, however, about connecting turntables: When running a phono signal directly from a turntable to your speakers, you might face longer cable paths than you would if you were connecting your turntable to a receiver; be aware that phono cable lengths longer than three feet can degrade sound quality, and plan accordingly.)

Once you’re physically up and running, pair the speakers with your smartdevice and use the Klipsch Connect App as a virtual remote and to access EQ controls and firmware updates. I found the app clumsy and sluggish to connect and update, but very easy to operate. Functions include a customizable three-band graphic EQ with presets, which can be useful if you need to boost mids to hear movie dialog better or crave extra-deep bass in your gaming soundtrack, for example, but listening to music, I left the EQ flat at all times. The app also offers processing compensating for wall or corner speaker placement, a Night Mode that adjusts dynamic range for quieter listening, and a Dynamic Bass function, which boosts low end at low volume levels.

Speakers photo
When it comes to how simple it is to set up and enjoy The Nines, just think, “Plug, Play, Slay.”

The sound

Decades ago, Klipsch founder Paul Klipsch identified four design principles that he felt led to the most lifelike recreation of the live concert experience at home: high efficiency, low distortion, controlled directivity, and flat frequency response. Together, these principles provide the foundation for the signature “Power Detail Emotion” focus in premier Klipsch towers, and they are well-represented in The Nines.

I used The Nines in a music-only setup, streaming TIDAL over USB from my laptop and over Bluetooth on my iPhone 13 Pro. l connected an Audio-Technica AT-LP140XP direct-drive turntable, A/B-ing a direct phono in using The Nines’ built-in phono preamp and a path through an ART DJ Pre II phono preamp to The Nines as line-in. Spoiler alert: The external preamp won out, delivering slightly cleaner, slightly more dynamic sound, especially at higher volumes. But given the convenience factor, I doubt many Nines users will find their internal preamp (which only supports moving magnet cartridges, FYI) a deal-breaker. It’s just one of several signal paths you can take. These speakers could easily flank the plinth of a quality turntable (with or without a built-in preamp) to create a relatively compact, aesthetically and aurally pleasing listening station in a single connection; a quick flip of the Line/Phono switch and you’re in business.

Because the cabinet is a rear-ported design, for optimal bass response and imaging it’s best to set speakers at least 12 to 18 inches away from the wall, which I did; another selling point for stands. This two-way speaker package produces a wide frequency range of 34 Hz to 25 kHz. I found The Nines’ bass output so deeply extended and articulate that a subwoofer was unnecessary for my music-listening setup. Gamers, hip-hop fans, and action-movie junkies may seek a bigger boom. Still, given how much air these beefy 8” woofers can move, I recommend trying the speakers without a sub first, especially if you are in a shared-wall living situation.

In my large (15×20-foot) listening space, The Nines sounded balanced and natural out of the box. I never felt the need to tinker with the response, choosing instead to dive right in. (That said, if you’re hoping to tease out some nuances, the Connect App gives you access to a three-band graphic EQ with bands centered at 200 Hz, 1 kHz, and 4 kHz; you can save your preferences as custom settings.)

Feeling inspired by The Nines’ bass for days, I queued up Crystal Waters’ classic house banger, “100% Pure Love.” I was instantly transported to the clubs of my youth, triggering the muscle memory of clambering atop massive PA speakers in the days before I knew better. Everything—the bone-melting bass, the silky-smooth, snaking vocals, those knife-edged cowbell clanks—sounded incredibly clear and balanced, with deep, defined lows and ultra-clean, pinpoint-precise highs, even at blow-the-roof-off levels, which is what this track demands. Think of The Nines’ sound as effortless meets in-your-face.

The Nines showcased the modal intricacies of Miles Davis’ “Nardis,” as realized on Bill Evans’ landmark 1968 live recording Bill Evans–At the Montreux Jazz Festival, in astonishing clarity. Every textural detail was brought to life, from the sandpapery slide of bassist Eddie Gomez’ virtuosic fingers traveling down the neck of his instrument to the crisp counterpoint of Jack DeJohnette’s drums as they cascaded into a kaleidoscopic solo.

Because Klipsch speakers are highly efficient, their drivers don’t have to work very hard, which helps bring dynamic range to levels comparable to a live performance. And because they’re bi-amped, they offer great separation between high and low frequencies. To me, the overall effect was that of sitting in the front row, an expansive soundstage washing over me, each instrument presented with remarkable depth and distinct separation.

And although I generally listen at old-lady conservative levels, with The Nines, I never heard compression at high volumes or experienced fatigue over long listening sessions. I found I didn’t need the Dynamic Bass turned on to feel every articulate attack, but YMMV.

Speakers photo
Listening to the lysergic pop of Fine Line—Harry Styles’ sophomore LP—the sweeping synths and golden-hour harmonies swelled in a lush, larger-than-life soundstage extending far beyond the speakers.

The conclusion

More and more, powered home speakers are morphing into entertainment hubs, dishing out everything from built-in streaming to sophisticated DSP to inputs that support every device you own (think the wireless network-enabled KEF LS50 Wireless II and JBL 4305P, among others). Although the all-in-one system is somewhat at odds with the audiophile “mix and match components until it’s perfect” ethos, as The Nines demonstrate, that doesn’t mean you can’t enjoy amazing sound in a convenient package without the expense and learning curve (and clutter!) of building a hi-fi system. The Nines even add the vinyl-friendly preamp that those other WiFi-connected speakers lack.

Considering their lineage and the success of their predecessors, it’s almost a given that The Nines sound amazing. Their sound signature can be characterized by its exceptional coherence, impressive imaging, and a sense of depth that draws you into the heart of the music. Bass is punchy and defined, and the midrange is rich and textured, for a warm and lifelike audio experience. Highs are crisp and detailed, a sparkling presence with no edgy harshness. The Nines’ comprehensive features and seamless connectivity make them standouts in their class.

Using these speakers feels a bit like enjoying the ease and convenience of a soundbar while experiencing the sonic separation, imaging, chest-thumping bass, and room-filling energy of component speakers. Add in their gorgeous vintage looks, and Klipsch The Nines speakers strike an ideal balance between versatility and charm and are sure to satisfy discerning listeners seeking to bring a new dimension of fun to gaming, movies, and, of course, music.

The post Klipsch The Nines loudspeakers review: Huge hi-fi sound, simple setup appeared first on Popular Science.

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A robot inspired by centipedes has no trouble finding its footing https://www.popsci.com/technology/centipede-robot-japan/ Thu, 01 Jun 2023 16:00:00 +0000 https://www.popsci.com/?p=545090
Macro closeup of orange and black millipede on green leaf
Centipedes' undulating movements can sometimes improve robot mobility. Deposit Photos

Researchers at Osaka University designed a 'myriapod' bot that uses less energy and computational power than other walking machines.

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Macro closeup of orange and black millipede on green leaf
Centipedes' undulating movements can sometimes improve robot mobility. Deposit Photos

Last month, engineers at Georgia Institute of Technology unveiled a creepy, crawly centipede-inspired robot sporting a plethora of tiny legs. The multitude of extra limbs wasn’t simply meant to pay homage to the arthropods, but rather to improve the robot’s maneuverability across difficult terrains while simultaneously reducing the number of complicated sensor systems. Not to be outdone, a separate team of researchers at Japan just showed off their own biomimetic “myriapod” robot which leverages natural environmental instabilities to move in curved motions, thus reducing its computational and energy requirements.

[Related: To build a better crawly robot, add legs—lots of legs.]

As detailed in an article published in Soft Robotics, a team at Osaka University’s Mechanical Science and Bioengineering department recently created a 53-inch-long robot composed of six segments, each sporting two legs alongside agile joints. In a statement released earlier this week, study co-author Shinya Aoi explained their team was inspired by certain “extremely agile” insects able to utilize their own dynamic instability to quickly change movement and direction. To mimic its natural counterparts, the robot included tiny motors that controlled an adjustable screw to increase or decrease each segment’s flexibility while in motion. This leads to what’s known as “pitchfork bifurcation.” Basically, the forward-moving centipede robot becomes unstable.

But instead of tipping over or stopping, the robot can employ that bifurcation to begin moving in curved patterns to the left or right, depending on the circumstances. Taking advantage of this momentum allowed the team to control their robot extremely efficiently, and with much less computational complexity than other walking bots.

As impressive as many bipedal robots now are, their two legs can often prove extremely fragile and susceptible to failure. What’s more, losing control of one of those limbs can easily render the machine inoperable. Increasing the number of limbs a lá a centipede robot, creates system redundancies that also expand the terrains it can handle. “We can foresee applications in a wide variety of scenarios, such as search and rescue, working in hazardous environments or exploration on other planets,” explained Mau Adachi, one of the paper’s other co-authors.

[Related: NASA hopes its snake robot can search for alien life on Saturn’s moon Enceladus.]

Such serpentine robots are attracting the attention of numerous researchers across the world. Last month, NASA announced the latest advancements on its Exobiology Extant Life Surveyor (EELS), a snake-bot intended to potentially one day search Saturn’s icy moon Enceladus for signs of extraterrestrial life. Although EELS utilizes a slithering movement via “rotating propulsion units,” it’s not hard to envision it doing so alongside a “myriapod” partner—an image that’s as cute as it is exciting.

The post A robot inspired by centipedes has no trouble finding its footing appeared first on Popular Science.

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The best monitors with built-in webcams of 2023 https://www.popsci.com/reviews/best-monitors-with-built-in-webcams/ Mon, 02 May 2022 17:00:00 +0000 https://www.popsci.com/?p=440074
monitors with built in webcams header image
Stan Horaczek

The best webcam is the one that’s always ready in your monitor.

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Stan Horaczek

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Best overall Dell S2722DZ Dell S2722DZ
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Dell’s mid-range S2722DZ monitor hits all the right marks, including a high-quality webcam and versatile features like USB-C connectivity.

Best 4K Samsung M8 Smart Monitor Samsung M8 Smart Monitor
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The Samsung M8 Smart Monitor blurs the line between monitors and TVs with an impressive feature-set you can use with or without a computer.

Best curved Philips Brilliance 499P9H Philips Brilliance 499P9H
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Loaded with features, the massive Philips Brilliance 499P9H ultrawide can easily do the job of two monitors.

Monitors with built-in webcams can make life a lot simpler for people who need to spend time on video calls but don’t want a lot of clutter or devices strewn about their desks. For most people, a dedicated webcam is still the way to go to ensure a sharp feed in meetings, but there’s a growing number of high-end productivity-focused monitors built with video conferencing in mind. Using a monitor with an internal webcam eliminates the unsightly clutter of a larger, standalone webcam. If you’re a laptop user, there’s a good chance you’ll get both a bigger screen to look at and better picture quality when on video calls.

For monitor shoppers, however, a webcam heaps extra factors onto an already-complicated world of specs you need to understand when picking out your next PC display. If you need a bit of guidance, we have some thoughts on how to pick the best monitor with a built-in webcam, including a set of recommendations with awesome options for every kind of PC user. 

How we picked the best monitors with built-in webcams

Most monitors do not have a built-in webcam, so we’re working with a much smaller number of monitors than we usually do. That said, all the usual rules for picking a great one still apply.

As a freelance writer who’s covered technology for publications including Engadget, Popular Mechanics, and Reviewed, I’ve spent a lot of time using, researching, and staying up to date on the latest monitors. In addition to testing, I surveyed a wide range of professional reviews and consumer impressions to determine the best monitors with built-in webcams on the market today.

The best monitors with built-in webcams: Reviews & Recommendations

Our list of the best monitors with built-in webcams consists of monitors that make the fewest trade-offs possible while offering all-in-one convenience. We focused on the overall monitor quality first and the webcam quality second, but we ruled out any models that were consistently noted to have poor webcam quality. We also paid attention to other features like connectivity and built-in speakers that can help to further simplify your setup.

Best overall: Dell S2722DZ

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Buy it used or refurbished: eBay

Why it made the cut: Dell’s S2722DZ is an incredibly well-rounded display, making it a perfect pick for home office workers looking for a monitor with a built-in webcam.

Specs

  • Size: 27-inch
  • Resolution: 2560 x 1440
  • Refresh rate: 75Hz
  • Ports: USB-C (65W), DisplayPort, HDMI, USB 3.2 (2), 3.5mm audio out
  • Panel type: IPS
  • Webcam: 5-megapixel IR pop-up camera
  • Webcam resolution: 1080p

Pros

  • Great value
  • Ample connectivity 
  • Full-featured webcam

Cons

  • Not 4K

Dell makes quite a few monitors with built-in webcams but the 27-inch S2722DZ hits a sweet spot for generalist office workers. The 1440p, “QHD” resolution will be more than adequate for non-visual arts work, watching videos, and even gaming. Its 5MP pop-up webcam can stream in 1080p at 30fps and is compatible with Windows Hello. Though it looks large, you can conveniently tuck it away when it isn’t in use. A pair of built-in 5W speakers and noise-canceling microphones round out the all-in-one package. There are also plenty of ports and connection options, including USB-C (with 65 W of power delivery), HDMI, DisplayPort, and a pair of USB 3.2 ports—plus a 3.5mm audio out if you do decide to upgrade the speakers. Considering its often discounted price tag, it’s an overall value that’s tough to beat.

Best 4K: Samsung M8 Smart Monitor

Amanda Reed

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Buy it used or refurbished: eBay

Why it made the cut: The Samsung M8 Smart Monitor stands out in more ways than one, offering all the features you’d expect from a smart TV in a sleek package that’ll look great on your desk. 

Specs

  • Size: 32-inch
  • Resolution: 4K
  • Refresh rate: 60Hz
  • Ports: USB-C (65W), micro HDMI 
  • Panel type: VA
  • Webcam: Detachable webcam with privacy cover
  • Webcam resolution: 1080p

Pros

  • Built-in processor allows you to use it for basic functions without a PC
  • Magnetic webcam that’s removable and adjustable
  • Multiple color options

Cons

  • Connectivity options may be limited for some
  • No Windows Hello support

Plenty of people use their monitor as a TV, whether it’s for console gaming or video streaming, but Samsung’s 32-inch, 4K M8 Smart Monitor goes the extra mile and throws in an onboard processor, allowing to perform basic productivity functions, including video calls, without connecting to a PC. You could call it a smart TV dressed up as a monitor.

When disconnected from other devices, you control the M8 through a smart TV-esque smart hub, complete with a range of streaming apps (plus support for Amazon Alexa and Apple AirPlay), a remote control, and, naturally, built-in speakers.

Wired connectivity options are considerably more limited, however, with only upstream and downstream USB-C ports, plus a micro HDMI port on offer (no DisplayPort or additional USB ports for connecting multiple peripherals). You can also connect wireless devices via Bluetooth.

As for the webcam, it isn’t built-in, so much as it is a fully removable webcam that comes baked into the monitor. That gives you the ability to tilt the Full HD (1080p) webcam to get the right angle when you need to. The webcam also comes with a camera cover, an always-welcome feature to let you prevent people from seeing you when you aren’t ready for them.

Best 27-inch: HP E27m G4

Buy it used or refurbished: eBay

Why it made the cut: With plenty of connectivity options, HP’s E27m G4 monitor is an ideal all-in-one hub for anyone with lots of peripherals.

Specs

  • Size: 27-inch
  • Resolution: 2560 x 1440
  • Refresh rate: 75Hz
  • Ports: USB-C (65W), DisplayPort, HDMI, USB 3.2 (4), Ethernet, 3.5mm audio out
  • Panel type: IPS
  • Webcam: 5-megapixel IR pop-up camera
  • Webcam resolution: 1080p

Pros

  • Loads of ports
  • Pop-up, adjustable webcam
  • Front-facing speakers

Cons

  • Expensive for its feature-set

The HP E27m G4 has a lot in common with our top pick, the Dell S2722DZ. It’s a little pricier but comes with a few advantages that may give it an edge depending on your needs. The form factor is similar: Both monitors are 27-inch QHD displays with pop-up 5MP webcams: The E27m G4 features larger forward-facing speakers that provide better sound, and even more connectivity options than the Dell, though. It too has a 65W USB-C port, DisplayPort, and HDMI, but also has a whopping four USB-A ports and Ethernet. A monitor is already front and center in your setup: The HP E27m G4 lets it serve as a connectivity hub as well.

Best curved: Philips Brilliance 499P9H

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Why it made the cut: An ultrawide display designed with productivity in mind, the Philips Brilliance 499P9H is perfect for dual-computer setups.

Specs

  • Size: 48.8-inch
  • Resolution: 5120 x 1440
  • Refresh rate: 70Hz
  • Ports: USB-C (65W), DisplayPort, HDMI (2), USB 3.1 (3), Ethernet, 3.5mm audio out
  • Panel type: VA
  • Webcam: 2-megapixel IR pop-up camera
  • Webcam resolution: 1080p

Pros

  • Huge display
  • Built-in KVM switch
  • Plenty of connectivity options

Cons

  • Webcam falls short of other monitors
  • Hard to find

The Philips Brilliance 499P9H can easily take the place of two standard 27-inch displays. Its curved 49-inch 5120 x 1440 resolution display gives you a huge canvas to work on. A built-in KVM switch also makes it a very strong choice for work-from-home power users who regularly switch between using personal and professional PCs.

At only 2MP, the pop-up webcam on the 499P9H leaves something to be desired. It does, however, support Windows Hello. A 49-inch curved ultrawide monitor won’t be for everyone, but the Philips Brilliance 499P9H is a unique offering and a great fit for the right kind of office workflow optimizer.

Best budget:Dell S2422HZ

Dell

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Buy it used or refurbished: Amazon

Why it made the cut: An affordable option that doesn’t compromise where it counts, the ​Dell S2422HZ is ideal for anyone with more modest needs or a smaller space.  

Specs

  • Size: 24-inch
  • Resolution: 1920 x 1080
  • Refresh rate: 75Hz
  • Ports: USB-C (65W), DisplayPort, HDMI, USB 3.2 (2), 3.5mm audio out
  • Panel type: IPS
  • Webcam: 5-megapixel IR pop-up camera
  • Webcam resolution: 1080p

Pros

  • Affordable
  • Ample connectivity options
  • Full-featured webcam

Cons

  • 24-inch display may be small for some

Technically, you can get a cheaper monitor with a built-in webcam than the Dell S2422HZ, but this smaller counterpart to our top pick offers a better all-around value than you’re likely to find in more basic models, at a similar price point. The 24-inch, 1920 x 1080 display has basically all of the same great features as the Dell S2722DZ, including a 5MP pop-up webcam, 5-watt speakers, and USB-C connectivity with 65 watts of laptop-charging power. Dell also offers one of the best warranties around on monitors and includes a Premium Panel Exchange policy that will replace a panel for free if you find even one faulty pixel.

Best for Mac: Apple Studio Display

Bestbuy

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Buy it used or refurbished: eBay

Why it made the cut: It’s expensive, and not without issues, but Apple’s Studio Display is an attainable 5K display with all the design flourishes you’d expect from an Apple product.

Specs

  • Size: 27-inch
  • Resolution: 5120 x 2880
  • Refresh rate: 60Hz
  • Ports: Thunderbolt 3/USB-C (96W), USB-C (3)
  • Panel type: IPS
  • Webcam: 12-megapixel fixed camera
  • Webcam resolution: 1080p

Pros

  • 5K display with great color accuracy
  • Impressive sound from built-in speakers
  • 12-megapixel webcam with Center Stage support

Cons

  • Expensive
  • Webcam picture quality issues require an upcoming firmware update

Eagerly anticipated by Mac lovers, the new Apple Studio Display finally delivers on the promise of a high-end monitor made by Apple for its desktop fans and Macbook Pro aficionados. While it isn’t as performant as Apple’s obscenely priced Pro Display XDR, you do get a great 27-inch, 5K display for the money and most of the features you’d expect from a pro-level monitor, including a Thunderbolt 3 port that delivers 96W of power, three USB-C ports, and one of the best speaker systems you’ll find in a monitor. 

Unfortunately, the monitor’s 12MP webcam has been the monitor’s one big point of contention at launch, with a number of reviews finding its performance to be lackluster given the monitor’s hefty price tag. Apple is promising a fix in a future software update, however, and we did find the webcam to still at least be usable in our testing.

What to consider before buying a monitor with a built-in webcam

While the webcam is the distinguishing feature of the monitors in this guide, it does not change the core requirements of what makes for a great monitor. Ultimately, finding a monitor with the right resolution, refresh rate, and other features are all prerequisites for making this list, and you probably shouldn’t compromise on any of them for the sake of a feature that can be easily tacked on for an extra $100 or so.

We have many, many guides on picking specialty monitors—for Macs, color grading, gaming, etc.—so we’ll only cover the basics here. You’ll want to get one that’s the right size for your needs—likely at least a 24- or 27-inch monitor for most people, or even larger for some uses—but don’t compromise on technical performance for the sake of buying bigger. If some features are particularly important to you, like color accuracy for creative professionals or refresh rate for gamers, it’s probably a good idea to broaden your choices and consider monitors both with and without a webcam to see which option makes the most sense for you. 

Monitor specs 101

In order to get the sharpest possible picture, you should treat picking your monitor’s resolution and size as a single decision. Bigger and higher-res always look better, but there’s a sweet spot for getting the best possible picture from a display if you pair the right resolution and size. A 1920 x 1080 (or 1080p) monitor looks great on a 24-inch display, but that same resolution will look noticeably less sharp on a 27-inch display, where a 2560 x 1440 (or QHD resolution) will be a much better fit. Likewise, 4K resolution can also provide a bump in picture quality on a 27-inch display, but starts to feel essential when you move up to a 32-inch monitor, or something even larger.

You’ll also want to pay attention to the monitor’s refresh rate, which controls how often the screen draws and redraws what it shows on-screen. A higher refresh rate makes anything that moves on your screen look more fluid. Whether or not you need a high refresh rate, however, comes down to what you’re doing: Gamers will want to look for a high refresh rate monitor—144 Hz or more (scroll back up and click on our gaming monitors round-up for examples)—while most productivity monitors are 60Hz, which is fine for basic office work, though a slightly higher 75Hz display will make things feel more fluid.

If you specialize in creative work—image and video editing—there are other factors you’ll want to focus on to ensure the most accurate picture, such as color accuracy, which determines just how true the colors you see on the monitor are to real life. There are a number of different standards that different manufacturers use to measure color reproduction. Scroll back up and click through to our round-up on the best monitors for color grading has an explainer if you want to get into the nitty-gritty but, fair warning, it gets very technical, very fast.

What a built-in webcam brings to the table

Webcams built into monitors run the gamut of quality. Some monitors have a tiny webcam built into the bezel just like a laptop. Others have larger pop-up webcams, which can be both more full-featured and flexible. You can conveniently hide them when they’re not needed, and some also let you adjust or tilt the camera to get just the right angle. One of our picks even lets you remove it altogether. 

Larger built-in webcams are generally better. They feature larger lenses that can take in more light, leading to better picture quality. This is especially important for poorly or unevenly lit rooms, where a little light has to go a long way. They’ll also be able to house a sensor supporting more megapixels (MP), another factor contributing to a better broadcast.

Lastly, keep in mind that built-in webcams have utility beyond video conferencing and streaming. For Windows users, we recommend looking for monitors with infrared webcams that support Windows Hello, so you can log into your computer using facial recognition instead of a password.       

Other features to pay attention to

Since the appeal of a monitor with a built-in webcam is all-in-one convenience, most also go one step further and include built-in speakers, as well as a built-in microphone (or often multiple microphones for the best performance). As you’d expect, there is a trade-off in sound quality compared to standalone speakers, but they can often be more than adequate if you’re only watching or listening to the occasional video or podcast, and some of the more premium monitors with built-in speakers can sound surprisingly good. 

If you’re connecting a laptop to your monitor, another way to keep your setup as simple as possible is to look for one with USB-C connectivity. That will let you use a single cable to charge your laptop while it’s connected to the monitor, while your peripherals can remain permanently connected to the monitor USB ports instead of your laptop.

FAQs

Q: Do curved monitors have webcams?

A curved monitor with a webcam is the exception rather than the rule, but there are a few options out there. Apart from our pick, the Philips Brilliance 499P9H, you might also want to consider the HP E34m G4, which is a slightly more desk-friendly 34-inch display and has features largely comparable with the HP E27m G4 we singled out as our top 27-inch monitor.

The range of curved monitors is rapidly expanding, though. Right now, most options are made specifically for gaming, but more curved monitors with webcams may come out in the future if the trend extends to monitors made for work as well.

Q: Do monitors with webcams have built-in speakers?

Yes, the vast majority of monitors with webcams also feature built-in speakers. Like most monitors with speakers, though, their quality generally runs from mediocre to bad. There are a few surprisingly usable options, including some of the monitors on this list, but we’d generally say that monitor speakers are best reserved for very casual video calls or background noise, rather than games, movies, or music that you’re listening to closely. 

On the plus side, some monitors will also have an audio-out jack for you to connect headphones or a pair of speakers, which can be more convenient than connecting the speakers directly to your laptop.

Q: How much does a monitor with a built-in webcam cost?

Since webcams are not standard on monitors, you should expect any monitor with a built-in webcam will cost more than a comparable monitor without one. There are webcam-equipped monitors at every price point, though, and the price difference generally isn’t huge. The most basic options may cost only $200-$300, while more premium monitors can easily run into the thousands.

Final thoughts on the best monitors with built-in webcams

Given the growing importance of video calls in our hybrid remote lives, one can only assume that a wave of new and exciting monitors with built-in webcams is on the way. For now, the options are still somewhat limited. That said, you don’t need to wait and hope for good options, because there are already a few good ones to choose from.

The post The best monitors with built-in webcams of 2023 appeared first on Popular Science.

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Get drilling after grilling with DeWalt deals on Amazon https://www.popsci.com/gear/dewalt-tool-amazon-deals/ Thu, 01 Jun 2023 15:55:00 +0000 https://www.popsci.com/?p=545089
DEWALT Max Cordless Drill / Driver Kit
DEWALT

It's time to get a tool that'll last a lifetime. But act quickly, as this 45% discount won't be around nearly as long.

The post Get drilling after grilling with DeWalt deals on Amazon appeared first on Popular Science.

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DEWALT Max Cordless Drill / Driver Kit
DEWALT

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The beginning of summer is a great time to finally get around to those home projects that have been piling up since November. But to do that, you’ll need the right tools for the job, and DeWalt has you covered if you’re stuck with a rusty, crusty screwdriver or a cheap corded drill with barely any torque. The company has discounted its Cordless Drill / Driver Kit to $99—an $80 discount that makes it accessible to many more people (and, coincidentally, makes it an amazing Father’s Day present).

DeWalt Max Cordless Drill / Driver Kit $99 (Was $179)

DEWALT

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We like that DeWalt offers this deal on a full kit instead of just a drill because it will likely be a one-and-done purchase. The company has bundled an extra battery, charger, half-inch drill driver, and carrying case. The only accessory we recommend getting is the company’s 45-piece bit set, which will prepare you for any home repair task. The drill itself has all the features we look for in a tool: power (it rotates up to 1,500 times per second); safety (a locking mechanism); ergonomics (a 3.8-pound weight and grippy handle for easy maneuverability); and thoughtful extras (a front-facing light that shines when the drill is activated). This model is also cordless, meaning you can safely carry it up a ladder or use it in places without an outlet.

Given DeWalt’s reputation and this tool’s power—likely more than you’ll need, but helpful to have when necessary—this is probably the last drill you’ll ever need. The company is confident enough to recommend using it on stone, metal, and wood. Whether you’re attaching new gutters to your home, setting up outdoor security cameras, or want to go overkill when tightening screws on cabinet handles, this drill is up for the task. Just remember to keep at least one battery fully charged, and to store it inside the carrying case when it’s not in use to ensure it lasts a lifetime.

More tool deals to help improve your home (and life):

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The best bone-conduction headphones in 2023 https://www.popsci.com/reviews/best-bone-conduction-headphones/ Mon, 23 Aug 2021 13:30:00 +0000 https://www.popsci.com/?p=389546
A lineup of bone conduction headphones
Amanda Reed

Bone-conduction headphones let you approach audio and activity with open ears and an open mind.

The post The best bone-conduction headphones in 2023 appeared first on Popular Science.

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A lineup of bone conduction headphones
Amanda Reed

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

Best overall A pair of grey SHOKZ bone conduction headphones on a blue and white background. Shokz OpenRun
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Impressive battery life, water resistance, and reliable connectivity make these the best pair of bone-conduction headphones around.

Best for kids A pair of pink bone conduction headphones with a unicorn pattern on a blue and white background N/0 Kids Bone Conduction Headphones
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Give your kids a pair of headphones that will provide safe entertainment while they stay active.

Best waterproof A pair of blue bone conduction headphones on a blue and white background Shokz OpenSwim
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A pair of open-ear headphones that’s waterproof, the OpenSwim suit doing laps in the pool swimmingly.

If you’ve got a bone to pick with the way traditional audio devices disconnect you from the world, there is another option: bone-conduction headphones. Headphones, in general, can play many valuable roles, no (or some) bones about it: they let you jam out to music, dive into podcasts, or dial into phone calls while blocking out environmental noise. This can help you concentrate on tasks, but there are some circumstances when being cut off from what’s around you isn’t optimal. The best bone-conduction headphones let you enjoy all your favorite listening experiences with your ear canal exposed so that you can drive, walk, run, bike, swim, etc.—all while remaining completely aware of your surroundings.

How we chose the best bone-conduction headphones

Bone-conduction headphones are still a relatively new product, but—after consulting academic articles, peer recommendations, real-world user impressions, and our own first-hand tests—we have identified certain models that stand out. Following extensive research, we selected pairs that address the specific needs of athletics, work environments, and age. We chose units that were easy to use, incorporated the features we love about traditional headphones, and prioritized sound quality.

The best bone-conduction headphones: Reviews & Recommendations

Sitting right outside the ear on the jaw, bone-conduction headphones are a different physical and acoustic experience than most people are used to. But different can be good. Here are our picks for the best bone-conduction headphones to help keep you in the hear and now.

Best overall: Shokz OpenRun

SHOKZ

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Why it made the cut: Shokz is dedicated to producing top-tier bone-conducting headphones, and the OpenRun is the company’s most advanced model, employing eight-generation technology to boost sound quality.

Specs

  • Frequency response: 20Hz-20KHz
  • Battery life: 8 hours
  • Charge time: 2 hours
  • Water resistance: IP67
  • Microphone: Dual noise-canceling

Pros

  • Good sound quality
  • Impressive battery life
  • Sweat-resistant for intense exercise

Cons

  • Hard to replace charging cable
  • Audio quality can’t hold up against traditional headphones
  • Buttons are close together

Without a doubt, Shokz has cornered the bone-conduction headphone market. The company produces thoughtfully engineered, top-quality products, creating an audio experience to complement the activities you enjoy. The OpenRun (formerly the AfterShokz Aeropex) is an excellent pair of bone-conduction headphones overall. Available in four colors and two band sizes, the OpenRun fits gently, yet securely, around the back of the head, looping around the ears and resting against the temples. The headphones employ patented eight-generation bone-conduction technology, are equipped with Bluetooth 5.0 SBC, and feature PremiumPitch 2.0+ signal processing, which prevents bleed, minimizes distortion, and produces a more dynamic bass with minimal vibrations. The battery lasts eight hours, and each pair comes with two magnetic USB charging cables, which can provide a full charge in just two hours. A dual noise-canceling mic will let you make clear calls, and included earplugs can help you tune things out when the time is right. An IP67 rating means this pair can withstand dirt, dust, sweat, and rain, while a built-in moisture detector will let you know when it’s getting wet. However, while the OpenRun is water-resistant, it’s not designed to be fully submerged in the pool.

Best waterproof: Shokz OpenSwim

SHOKZ

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Why it made the cut: The OpenSwim have an IP68 rating, which means they can be fully submerged in water for up to two hours; you can swim with them without making terrible sacrifices regarding audio quality.

Specs:

  • Frequency response: 20Hz-20KHz 
  • Battery life: 8 hours
  • Charge time: 2 hours
  • Water resistance: IP68
  • Microphone: None

Pros

  • Waterproof
  • Ample storage for songs and audiobooks
  • Comfortably fits under swim cap

Cons

  • Single-purpose headphones
  • No Bluetooth connection
  • Limited color options

The Shokz OpenSwim is specifically designed to deliver your favorite music, audiobooks, and podcasts while swimming. These headphones have an IP68 rating, fit comfortably under a swim cap, and can be submerged in 2 meters of water for up to two hours at a time. While these headphones are not Bluetooth compatible, they can store up to 1,200 songs (4 GB) of various file types, including MP3, WAV, AAC, and FLAC. The OpenSwim headphones feature the same command controls and PremiumPitch 2.0 technology as other Shokz open-ear headphones, so while you won’t be able to stream, you can listen to your favorites with solid, satisfying sound quality. They even come with a noseclip.

Best for calls: Shokz OpenComm

SHOKZ

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Why it made the cut: A DSP noise-canceling microphone means the OpenComm headphones are able to isolate your voice while talking, drowning out any surrounding din but keeping you in tune with your environment.

Specs

  • Frequency response: 20Hz-20KHz
  • Battery life: 16 hours of talk time // 8 hours of listening
  • Charge time: 1 hour
  • Water resistance: IP55
  • Microphone: DSP noise-canceling boom microphone

Pros

  • Comfortable for long wear
  • Extended battery life for long phone calls
  • Boom microphone enhances call quality

Cons

  • Shape is hard to store
  • Some sound bleed might limit private conversations
  • IP55 rating could be better

The OpenComm headphones prioritize clear communication using an adjustable DSP boom microphone that suppresses background noise and highlights your voice when positioned near your mouth. Though the person on the other end of the line won’t pick up on your environment’s sounds, the open-ear headphones will ensure you can hear the person talking on the phone and the one right in front of you. The OpenComm system also lets you bypass your car’s choppy stereo if you have to make a call on the road, without cutting yourself off from the sound of traffic. You can also stay on the call when you’re at a job site or keep connected during a busy commute, all without losing situational awareness. You can get up to 16 hours of talk time or 8 hours of listening, and with Quick Charge, you’ll get a replenished two hours of battery life in just five minutes.

Best for multitasking: HAYLOU PurFree Bone Conduction Headphones

Amanda Reed

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Why it made the cut: These waterproof, sweatproof headphones will hold up as you pump iron or just rearrange your living room.

Specs

  • Frequency response: Unknown
  • Battery life: 8 hours
  • Charge time: 10-minute quick charge
  • Water resistance: IP67
  • Microphone: Built-in wireless

Pros

  • IP67 rated
  • High sound quality
  • Long battery life

Cons

  • Proprietary charger

Using your sweaty hands to remove your headphones because someone is asking to use the treadmill is common in the gym. So is taking your earbuds out or headphones off repeatedly while roommates/family/friends try to talk to you as you get chores done. Keep your headphones on while keeping your ears open with these sport-friendly HAYLOU PurFree Bone Conduction Headphones. They are IP67 rated, meaning sweat and water won’t get in the way of completing your reps—whether that’s lifting weights or emptying the washer. An eight-hour battery life gives you all-day tunes power, and 10-minute quick charging gives you two hours of power. The sound quality is superb compared to other bone-conduction headphones, with deep bass and a solid range of highs and lows thanks to a strong Bluetooth 5.2 connection. A noise-canceling microphone means you can take calls without the background bleeding into your conversation. However, a proprietary charger means you’ll be tuneless if you lose power on the go, so prep before you step.

Best for kids: N/0 Kids Bone Conduction Headphones

N/0

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Why it made the cut: These headphones include a volume limit of 85 decibels, and the open-ear design means your child will always be able to hear the world around them and when you call for them.

Specs

  • Frequency response: Unknown
  • Battery life: 8 hours
  • Charge time: 1-hour quick charge
  • Water resistance: IP54
  • Microphone: Built-in wireless

Pros

  • Lightweight
  • Volume limiter keeps kids’ hearing safe
  • Adjustable band can grow with your child

Cons

  • Soundbeaming technology is difficult to grasp
  • Susceptible to water damage
  • No noise cancellation means they’re not great for travel

These open-ear headphones aren’t exactly the same as bone-conduction headphones, but the form factor and effect are similar. With soundbeaming speakers resting outside the ear on the cheekbones, these headphones ensure your active child can stay alert to their surroundings even when listening to their favorite songs. With an adjustable band suitable for children ages 4 to 15 and a volume limit of 85 decibels, these headphones go above and beyond to address any concerns you might have for their awareness or hearing. They are equipped with Bluetooth 5.0, 8 hours of battery, and an automatic sensor to control playback. An IP54 rating means you won’t have to worry about a few spills or drops in the dirt. Whether they’re skateboarding, biking, or just running around the backyard, your kids can enjoy music and mobility safely.

Best budget: Guudsound Bone Conduction Headphones

Guudsound

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Why it made the cut: If bone conduction is new to you, you might not be ready to shell out $100 or more. The Guudsound headphones produce satisfying sound quality and suitable specs in a great intro pair.

Specs

  • Frequency response: Unknown
  • Battery life: 6-10 hours
  • Charge time: 2 hours
  • Water resistance: IP54
  • Microphone: Built-in wireless

Pros

  • Inexpensive
  • Useful, responsive multifunction button
  • Sound quality is good for the price point

Cons

  • Flimsy build
  • Sound quality could be improved
  • Battery life is just okay

If you want to try out bone conduction but are not ready to invest in a high-end pair, this cheap model from Guudsound might be right for you. Available for less than $40, they are equipped with Bluetooth 5.0, a built-in microphone, multifunction buttons, and an adjustable band for comfort. The battery can last up to 10 hours, and a 15-minute quick charge provides one hour of playback. Each pair comes with a USB charging cable and a pair of earplugs so you can create custom noise cancellation.

What to consider when buying the best bone-conduction headphones

If your mom always warns you not to listen to your headphones while walking home at night, or you need to hear the traffic behind you as you pedal to work, try out the best bone-conduction headphones. To determine which pair will work best for your needs, you’ll want to consider where and when you’ll be using them the most. You’ll also want to make sure you understand how they work, especially if this is your first pair of bone-conduction headphones.

First of all, what is bone conduction, and how does it work?

Bone-conduction headphones allow you to experience audio sans any direct interaction with your ear canal or eardrum. While this may sound like some new-fangled, tech-heavy sorcery, there is evidence that bone conduction has been around for centuries. It is rumored that Beethoven relied on bone conduction to compose music after losing his hearing by attaching a metal rod to his piano and biting down on it as he played. But how does it work? 

Typically, sound waves travel through the air and are funneled through the ear canal to the eardrums, where they are then decoded into vibrations and sent to the inner ear (or cochlea), which is connected to the auditory nerve. When the vibrations hit the inner ear fluid, tiny hair cells start to convulse, creating electrical pulses that travel up the auditory nerve to the brain. This process is called air conduction. Bone conduction completely avoids the eardrum and relies on a transducer—like headphones, or a metal conductor’s rod in Beethoven’s case—to convert sound waves into vibrations and send those through the facial bones to be received by the inner ear. Essentially, the vibrations received by the cochlea are the same no matter which way you receive them; they are simply sent via a different pathway. 

This concept has even been used in reverse. The Sony WF-1000XM4 earphones include a bone-conduction sensor that picks up the vibrations from your voice during calls to help enable clearer speech without picking up ambient sound.

Who should use bone-conduction headphones?

Medically, the best bone-conduction headphones benefit those experiencing conductive hearing loss, a condition that directly affects the transmission of sound through the eardrums. Conductive hearing loss is just one way the auditory system can be disrupted, so bone-conduction headphones won’t work for everyone with hearing difficulties. 

Bone-conduction headphones are also helpful for those who need to maintain situational awareness while they enjoy their music. These headphones provide an additional layer of safety for bikers, hikers, drivers—essentially anyone who needs to be aware of their surroundings. Active in dense urban environments? Bone conduction makes for great running headphones. Bone-conduction headphones are also particularly great for swimmers. Air conduction is heavily suppressed when we are underwater, but the vibrations created by bone conduction can still be transmitted, which means a pair of bone-conduction headphones with an Ingress Protection rating of IP68 (a.k.a. waterproof) can keep you connected to your workout playlist lap after lap. 

Now, bone conduction won’t make your entire face shake, rattle, and roll, so you don’t need to worry about experiencing discomfort while you listen. In fact, many report that these headphones are secure, comfortable, and easy to wear. However, if you are sensitive to pressure, there is a chance that you may experience dizziness or headaches after a long stretch of listening.

How’s the sound quality?

If you’re an audiophile searching for your next pair of headphones, chances are bone conduction isn’t going to be what you’re looking for. That being said, the overall audio quality of these headsets can certainly get you through a tough training session or walk to work. At high volumes, audio can start to distort or get crunchy and an expansive mix isn’t really possible. However, with a quality model, you will still get to experience impactful bass; you’ll feel the vibrations instead of highly pressurized waves from over-ear cans. 

Just remember that even the best bone-conduction headphones aren’t meant to fit or even necessarily sound like traditional headphones or earbuds. If you haven’t used bone-conduction headphones before, you might feel inclined to turn up the volume as loud as it can go in an attempt to recreate that natural, passive noise cancellation that every other type of headphone relies on. Remember that nothing is blocking your ear canal, which means that you will purposefully be able to hear your surroundings clearly; maxing out the volume won’t affect that, but it could lead to hearing loss down the road.

Can bone-conduction headphones use Bluetooth?

Yes, there are wireless bone-conduction headphones that use Bluetooth 4.2 and higher to connect to smart devices such as cellphones and computers. Set up and pairing is no different with Bluetooth bone-conduction headphones than connecting any other type of Bluetooth headphones, and some may even have onboard controls like play, pause, and skip for your streaming services. Other models are more like a portable MP3 player, with the ability to store hours of songs internally that you can then play through without any wires involved. Remember the iPod shuffle? That’s what you’ll be getting—an excellent option for folks who want to jam out to a curated playlist while they focus on working out or a walk about the town.

Can you take phone calls with bone-conduction headphones?

Yes, some bone-conduction headphones are equipped with a microphone so you can answer calls on the go. While the headphones themselves can’t employ any passive or active noise cancellation to enhance your listening experience, some models can use technology to make calls crisp and clear. The headphones with mic use various means to minimize outside sound—like wind, traffic, etc.—ensuring that the person you’re talking to can hear you without interruption. Just remember that bone-conduction headphones are subject to more sound bleed than traditional units, so you’ll want to be conscientious about volume when it comes to private calls.

FAQs

Q: How much do bone-conduction headphones cost?

Generally, the best bone-conduction headphones cost between $80 and $150. It’s important to go with a quality pair to ensure you’re investing in a safe and well-designed model. Though the history of bone-conduction technology is long, its application to commercial headphones is relatively new, which means you’ll have the most success with an established brand, like Shokz.

Q: Can bone-conduction headphones cause hearing loss?

Any long-term exposure to loud noise can cause damage potentially leading to hearing loss; this includes listening to music at loud volumes with any headphones. At this time, there is no evidence to support the claim that bone-conduction headphones put you at significantly more risk for hearing loss than any other headphone type, including earbuds and over-the-ear models. It’s important to remember that bone-conduction headphones will not block out surrounding noise, so you should not try to block out additional sound by turning the volume up too loud.

Q: Can you wear glasses with AfterShokz?

Yes, you can wear your glasses while using Shokz headphones. The company recommends putting the headphones on first and then sliding your glasses into place for a more secure fit. They can also be worn underneath a helmet, and the waterproof model can be worn with a swim cap covering the tips of your ears.

Q: Do bone-conduction headphones sound good?

They say beauty is in the eye of the beholder, and the same goes for bone-conduction headphones. Imagine you’re holding a phone speaker up to your ear—that’s what it’s like to wear a pair of bone-conduction headphones. Will they perform the same as headphones with active noise cancellation? No. If hearing street sounds and skipping ANC earbuds is music to your ears, however, you’ll be happy going with bone conduction.

Final thoughts on the best bone-conduction headphones

Chances are you’re either an experienced bone-conduction headphones user or a novice looking to see if these air-conduction alternatives are right for you. Regardless of your familiarity, finding the right pair means homing in on when and where you’ll use them most. Think about your surroundings and consider your priorities regarding sound quality, microphone use, and waterproof rating, then shop accordingly. If you’re accustomed to traditional earphones or over-ear models, get ready to be surprised by the best bone-conduction headphones.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

The post The best bone-conduction headphones in 2023 appeared first on Popular Science.

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Dinosaur Cove reveals a petite pterosaur species https://www.popsci.com/science/pterosaur-australia-fossils/ Thu, 01 Jun 2023 15:00:00 +0000 https://www.popsci.com/?p=545078
An artist’s reconstruction of an Australian pterosaur flying with a large wingspan.
An artist’s reconstruction of an Australian pterosaur. Peter Trusler/Curtin University

The unidentified flying reptile found took to Australia's skies 107 million years ago.

The post Dinosaur Cove reveals a petite pterosaur species appeared first on Popular Science.

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An artist’s reconstruction of an Australian pterosaur flying with a large wingspan.
An artist’s reconstruction of an Australian pterosaur. Peter Trusler/Curtin University

The fictional and deadly Jurassic Park has nothing on the real-life Dinosaur Cove on the southern tip of Victoria, Australia. Using bones from the fossil-filled hotspot, a team of paleontologists have confirmed that pterosaurs—more commonly known as pterodactyls—flew over Australian skies as far back as 107 million years ago. Their findings are detailed in a study published May 31 in the journal History Biology.

[Related: This pterosaur ancestor was a tiny, flightless dog-like dinosaur.]

The team examined two pieces of prehistoric bone that were extracted from Dinosaur Cove over 30 years ago. The bones belonged to two different pterosaurs, and were examined by experts from Curtin University in Perth and Melbourne’s Museums Victoria. A partial pelvis bone belonged to a pterosaur with a wingspan over 6.5 feet, and the smaller wing bone belonged to a juvenile pterosaur. These bones turned out to be the oldest remains of the giant winged reptiles ever recovered in Australia, which is better known for its larger sauropod fossils

Closely related to dinosaurs, pterosaurs soared through the skies during the Mesozoic Era, about 252 million years ago.

“During the Cretaceous Period (145–66 million years ago), Australia was further south than it is today, and the state of Victoria was within the polar circle—covered in darkness for weeks on end during the winter. Despite these seasonally harsh conditions, it is clear that pterosaurs found a way to survive and thrive,” study co-author and Curtin University PhD student Adele Pentland said in a statement

According to Pentland, remains of pterosaurs are a rare find worldwide. Even fewer remains have been discovered at regions that were once high paleolatitude locations, including Victoria. She told CNN that less than 25 sets of pterosaur remains from four species have been found in Australia since the 1980s, compared to more than 100 sets in countries like Argentina and Brazil.  

“So these bones give us a better idea as to where pterosaurs lived and how big they were. By analyzing these bones, we have also been able to confirm the existence of the first ever Australian juvenile pterosaur, which resided in the Victorian forests around 107 million years ago,” said Pentland.

[Related: The biggest animal ever to fly was a reptile with a giraffe-like neck.]

The specimens were found in the 1980s in a Dinosaur Cove expedition led by paleontologists Tom Rich and Pat Vickers-Rich. Their discovery of big-eyed dinosaurs along this area of coastline helped spark a major shift in how dinosaurs were more generally perceived. These “dinosaurs of darkness” gave paleontologists a glimpse of survival without sunlight and reframed questions about whether dinosaurs were warm-blooded creatures. 

“These two fossils were the outcome of a labor-intensive effort by more than 100 volunteers over a decade,” Tom Rich said in a statement. “That effort involved excavating more than 60 meters [196 feet] of tunnel where the two fossils were found in a seaside cliff at Dinosaur Cove.”

The biggest pterosaur scientists know of so far is Quetzalcoatlus northropi, which was found in Texas. Since everything is bigger in Texas, this pterosaur had a wingspan of about 32 to 36 feet. Australia’s largest pterosaur is the Thapunngaka shawi. It was discovered in 2021 by a team from the University of Queensland and boasts a wingspan of roughly 22 feet. 

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11 hot Firefox tips and tricks that might finally convince you to switch browsers https://www.popsci.com/advanced-firefox-hacks/ Mon, 18 Mar 2019 21:21:13 +0000 https://www.popsci.com/uncategorized/advanced-firefox-hacks/
The Mozilla Firefox office building.
Switching to a new browser can be as refreshing as taking a nice walk around the block. Depositphotos.

Try out these tips, add-ons, and tricks for Mozilla's browser.

The post 11 hot Firefox tips and tricks that might finally convince you to switch browsers appeared first on Popular Science.

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The Mozilla Firefox office building.
Switching to a new browser can be as refreshing as taking a nice walk around the block. Depositphotos.

No matter your operating system, Mozilla Firefox makes a great default browser. The free program is quick, intuitive, and packed with features. And you can customize it in all kinds of ways, from tweaking the look of the software to changing the appearances of individual websites.

Once you dig past the surface-level options, you’ll find you can do even more with this privacy-focused browser. These features include app troubleshooting, expert tab management, and entirely new ways of surfing the web. Check out the tips below to ensure you’re taking advantage of all Firefox has to offer.

1. See tabs on your other devices

If you’re using Firefox on multiple devices—maybe a laptop, a desktop, and a phone—and you’re signed into the same Firefox account on all of them, you can see open tabs across all of them through a feature called Firefox View.

First, click the three horizontal lines (top right), then Settings and Sync to make sure you’re signed in. As long as you’re signed in on at least one other device, you can click the Firefox icon on the far left end of the tab bar to see the tabs you’ve got open elsewhere.

2. Customize your address bar

You can turn the Firefox navigation bar into a search powerhouse. That way, when you type keywords (rather than URLs) into the address bar, you’ll be searching for those terms across the web. First, choose the search engine you prefer, whether that’s Google, Bing, DuckDuckGo, or something else. Then set it as Firefox’s default, so search terms in the navigation bar will yield results from that search engine. To do so, open the application menu (click the three horizontal lines on the top right of the page), then choose Settings and Search to set the default.

The address bar can act as more than a standard search engine, too. By typing in special keywords, you can launch custom searches within pretty much any site you like, including Wikipedia, IMDb, Amazon, and more. To set this up, navigate to the site you want to search and find its search box. Right-click inside the box and choose Add a Keyword for this Search. A dialog box will pop up. Next, type something short but unusual in the keyword box. This is the term that will trigger your site-specific search when you type it in the Firefox address bar, so you don’t want it to resemble any normal keywords you might search for on a regular basis. For example, you might choose to trigger an IMDb search with the term “imdb”, because you’re not likely to run a general search for that word.

Click Save, and you can then search within that site by entering your keyword, followed by your search terms, in the address bar at the top of the browser. To stick with our previous example, type “imdb Tom Cruise” into the navigation bar to search the IMDb website for Tom Cruise.

3. Watch videos in picture-in-picture mode

Mozilla Firefox's picture-in-picture mode.
Picture-in-picture lets you watch videos outside of Firefox. David Nield for Popular Science

When you’re watching a video in Firefox, you’ll see a small overlay button that looks like two rectangles with an arrow pointing from one to the other. Click on this, and your video will pop out of Firefox. Then, you can carry on browsing while the video continues to play.

Click and drag the pop-up window to move it, and drag in (or out) from its edges to resize it. Click the X to close the picture-in-picture video, or the back to tab button (an arrow pointing to a box) to continue playback inside Firefox again.

4. Delete browsing data when Firefox is closed

Keeping on top of cookies and other browsing data saved by the sites you visit in Firefox can be tricky. This data saves information such as your location and your settings for particular sites, and while it can streamline your browsing experience, you may not feel comfortable with websites knowing this much about you.

If you’d like to stay a little more private, click the three horizontal lines (top right) in Firefox, then choose Settings and Privacy & Security. There, you can check the box labeled Delete cookies and site data when Firefox is closed. Every time you shut down the browser, these files will be automatically wiped, so you won’t need to worry about them.

5. Turn on mouse gestures

Mouse gesture depictions in the Firefox Gesturefy extension.
Gesturefy has plenty of gestures to pick from. David Nield for Popular Science

Clicking and scrolling is fine, but Firefox lets you supercharge your online navigation with mouse gestures that allow you to trigger specific actions by moving your mouse a certain way. Give it a trial run, with the help of the Gesturefy add-on, and there’s a good chance you’ll never look back.

First, install the extension inside Firefox and restart your browser. To explore the available gestures, open the main menu (the three horizontal lines in the top right) and choose Add-ons and themes. Find Gesturefy, click the three dots next to it, then Options, and you’ll find the configuration panel.

Under the Settings tab, you can set the trigger button, which is a button you need to hold down while making a mouse gesture. Gesturefy’s default trigger is the right mouse button, but you can change it if you’d like. Switch to the Gestures tab to see some of the gestures already in place. For example, dragging the mouse quickly to the right, then the left (with the right mouse button held down) closes the current tab. You can add more gestures to the extension’s repertoire here, too.

It may take you some time to get the hang of these gestures, but once you do, you may find that a quick hand movement feels much more intuitive than fishing around for toolbar buttons or scrolling through menus.

6. Manage your tabs

Tabs make up the core of your browsing experience—but you don’t have to settle for the default options Firefox gives you. Check out the Tree Style Tab extension, for example, which introduces a new tab panel on the left and lets you organize your open tabs into hierarchies, almost like a family tree.

Then there’s Tab Stash: This extension lets you save batches of tabs together as bookmarks inside Firefox. If you’re researching a particular topic, for example, and want to come back to it later, you can quickly save all your open tabs as a group that you can open up again later.

You should also check out Simple Tab Groups. This extension does exactly what its name suggests, enabling you to organize open Firefox tabs into color-coded groups in—you could have one group for work stuff and another for personal stuff, or whatever you like.

7. Take screenshots of webpages

A Firefox window open on a computer, with the screenshot tool active.
Taking screenshots of Firefox pages is easy. David Nield for Popular Science

There are all kinds of reasons you might want to take screenshots—for posterity, or maybe to refer to in a separate document—and this is really easy to do in Firefox. Just right-click on a blank part of a page, then choose Take Screenshot. You can either click on an element (like an image) to grab it, click and drag across a region to capture, click Save full page to screenshot the entire page, or click Save visible to just capture what you can currently see on screen.

8. Snooze tabs for later

You might be familiar with snoozing your alarm—hitting a button to postpone your wakeup call and sleep for a few extra minutes. Now you can do the same with Firefox tabs, thanks to a third-party extension called Snooze Tabs.

The extension is pretty simple to use: Click the extension button on the toolbar (it looks like a jigsaw piece), then pick Snooze Tabs. You can send the tab you’re currently viewing, or all your Firefox tabs away until a later time and date—choose a preset option like Tomorrow morning or specify your own with Custom time.

9. Search through your tabs

Browser tabs seem to multiply like magic, and you likely have dozens of them open at any one time. That can make navigation tricky, but there is a tab search trick that can help: Click inside the address bar at the top of the Firefox interface, then type the percentage symbol (%)and a space. You’ll then be able to search through the titles of the tabs that you currently have open.

10. Refresh Firefox

The refresh function in Firefox.
Firefox’s refresh function can get the browser running smoothly again. David Nield for Popular Science

If you find your software bogged down with a bunch of extensions, or behaving sluggishly for no specific reason, most programs require that you uninstall and reinstall them to restore their factory settings. Firefox offers a built-in refresh feature that easily resets the browser back to its factory settings and gets it running as good as new. As Mozilla explains, a refresh will return most Firefox settings back to their default state, but it won’t affect your saved bookmarks, stored passwords, browsing history, or even open windows. What it does scrub are third-party extensions, website permissions, modified user preferences, and any customizations you’ve made to the Firefox toolbar.

To access the refresh feature, type “about:support” into the address bar and hit Enter. This takes you to the master troubleshooting page. Click the Refresh Firefox button on the right, and instructions will guide you through the short process.

If you’re really having problems with Firefox, you may not be able to start it at all, which will prevent you from performing a refresh. So try running it in Troubleshoot Mode, which disables everything except the core Firefox program. To open the browser in Troubleshoot Mode, hold down the Shift button (Windows) or the Option button (macOS) while clicking or double-clicking the program icon. As Firefox starts, you’ll see the Troubleshoot Mode window appear. You can continue to browse in Troubleshoot Mode, or go ahead and run that refresh right away.

11. Switch to dark mode

Firefox comes with its own dark mode, which you may prefer. Click the three horizontal lines in the top right, then pick Settings. Open the General tab, and you’ll find Dark under the Web site appearance heading. This will be applied to Firefox’s own settings and new tab screens, but will only darken a website if the site has been coded to respond to a dark mode request from the browser.

This story has been updated. It was originally published on September 11, 2017.

The post 11 hot Firefox tips and tricks that might finally convince you to switch browsers appeared first on Popular Science.

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The best way to relieve sore muscles after a brutal workout https://www.popsci.com/health/relieve-sore-muscles/ Thu, 01 Jun 2023 13:00:00 +0000 https://www.popsci.com/?p=544167
White-skinned person pouring ice cubes into bath with a dark-skinned person recovering after a workout. Illustrated in orange, white, and black.
Ice might numb the pain after a workout, but it won't fix what's causing it. Julia Bernhard

Put down the massage gun and step away from the treadmill.

The post The best way to relieve sore muscles after a brutal workout appeared first on Popular Science.

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White-skinned person pouring ice cubes into bath with a dark-skinned person recovering after a workout. Illustrated in orange, white, and black.
Ice might numb the pain after a workout, but it won't fix what's causing it. Julia Bernhard

BEING SORE SUCKS. Anyone who’s exercised to an extent can probably complain about the stiffness, pains, or—worse—injuries the next day. But as annoying as the achiness gets, it’s a critical part of the recovery process

Under your skin, the all-important muscle fibers that push and pull bones to move you around tear slightly during a workout—a phenomenon called microtrauma. Combined with inflammation, these tiny ruptures may cause soreness, which your body alleviates by replacing the cells around the wound.

There are actually two kinds of muscular soreness that you feel after a workout, and they come from different sources. The microtrauma-based discomfort is known as DOMS, short for delayed-onset muscle soreness. You might feel it most between 24 and 48 hours after the workout—and for as long as three to five days. The other type, acute muscle pain, happens after you overwork your body. These pangs go away in about a day or two, just in time for the DOMS to peak. 

So are there surefire ways to get rid of your soreness? Not exactly. The problem is that to ease the aches, your body has to heal the microtears, which isn’t a process you can speed up. There is some good news, though: A solid post-workout ritual could have a placebo-like effect on your mind, blunting some of the pain you feel. And there could be other perks too.

For example, stretching does not lead to faster recovery, but it does make you more flexible and less prone to injury in the future, especially during high-intensity workouts. And while warm-ups don’t help with the healing process either, they do raise your heart rate, preparing you for the sudden jump in activity. 

Then there are the various salves, tools, and self-care schemes people try. A few studies show that proper use of compression gear could confer some benefits for blood flow and enzyme production. Some gymgoers pregame the pain with anti-inflammatory drugs like aspirin and ibuprofen, though they have no proven power against soreness. Elite swimmers might tolerate the bruises that come with cupping therapy—without any science to confirm the benefits of the practice. Even ice baths and far-infrared saunas (featuring high heat and low humidity) have minor, inconsistent results, according to researchers.

In general, getting a massage a day or two after a workout offers short-term relief for muscle tenderness. You will likely feel a little worse with a pair of hands or a percussive therapy device kneading into you, but as soon as it’s done, your pain will be more manageable for the next few hours. In certain circumstances, massages might even help reduce inflammation and DOMS.

There are three surefire things you can do, however, to soothe your soreness a bit. The first is to rest. Your body needs time to rebuild your muscle fibers, so getting a good night’s sleep and using the sore body parts less when you’re awake will help you recover faster. Weightlifters know this well and will work a different muscle group each session. If you’re a regular at the gym, commit to triceps one day and focus on a different group (biceps, maybe) the next.

The second is to make sure you’re eating well. Your body requires nutrients like proteins and carbohydrates to patch up your muscles, so enjoy a big bowl of pasta or a tall glass of chocolate milk a few hours after training. 

The third thing you can do is keep at it. DOMS hits harder when you try a new form of exercise because your body is not used to the strenuous activity. The first time will always be the most painful. But if you set a schedule and habit around the workouts you like best, it should hurt less after you crush all your reps. 

Read more PopSci+ stories.

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These HD digital camera binoculars are now only $122 https://www.popsci.com/sponsored-content/hd-digital-camera-binoculars-deal/ Thu, 01 Jun 2023 13:00:00 +0000 https://www.popsci.com/?p=544927
A pair of binoculars on a white background
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Give the gift of viewing a 1-kilometer range at 12X magnification with these HD digital camera binoculars.

The post These HD digital camera binoculars are now only $122 appeared first on Popular Science.

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Are you searching for the perfect gift for the adventurer-dad in your life? Allow them to experience the ultimate fusion of telescope and digital camcorder capabilities with the HD Digital Camera Binoculars. These advanced binoculars are now on sale for only $121.99, just in time for Father’s Day.

This remarkable gadget lets users capture indoor and outdoor moments with great precision and detail, and just in time for Father’s Day, you can gift your dad these fantastic binoculars for only $121.99 (reg. $199). You’ll have to act fast, though, as they must be ordered no later than June 5 to ensure on-time delivery by the holiday.

With its 12X magnification and exceptional focus adjustment, these HD binoculars excel at recording high-quality videos and capturing stunning photographs. These binoculars are ideal for obtaining unforgettable memories, whether your dad’s camping, bird-watching, traveling, or engaging in various activities like traveling.

Dad can capture high-quality content in any environment with the HD Digital Camera Binoculars, which boast impressive video resolutions of 1440x1080p and 1280x720p and image resolutions ranging from 1.3M to 5M. Equipped with a premium full glass HD lens, this device records videos at a smooth 30 frames per second in 1080p, while its decisive autofocus ensures stunning 720p resolution at 60 frames per second. 

Thanks to its waterproof, anti-dust, anti-fog, and anti-shock design, Dad can confidently take this gadget anywhere, regardless of the weather conditions. And with a weight of 15.8oz, these compact binoculars can easily be stowed in Dad’s pant pocket, jacket, or bag.

The HD binoculars offer a range of additional features, including a 750mAh battery, support for JPG and AVI formats, an anti-reflective coating that enhances light transmission and prevents water filtration, a convenient 2″ LCD screen, and much more. Thanks to its budget-friendly pricing, you can gift your dad professional-quality video content without breaking the bank.

Make your dad’s day this holiday and upgrade how he records his next outdoor adventure.

Give Dad the HD Digital Camera Binoculars for just $121.99 (reg. $199) this Father’s Day. Hurry, June 5 is the last day to order to ensure on-time delivery.

Prices subject to change.

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The US doesn’t have a law mandating EV battery recycling. Should it? https://www.popsci.com/technology/ev-battery-recycling-law-mandate/ Fri, 02 Jun 2023 01:00:00 +0000 https://www.popsci.com/?p=545067
Eventually, a robust circular battery economy could all but eliminate the need to extract rare metals at all.
Eventually, a robust circular battery economy could all but eliminate the need to extract rare metals at all. Alyssa Pointer / The Washington Post via Getty Images

Recycling batteries could reduce the need to mine critical minerals—but only if the packs are properly recovered.

The post The US doesn’t have a law mandating EV battery recycling. Should it? appeared first on Popular Science.

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Eventually, a robust circular battery economy could all but eliminate the need to extract rare metals at all.
Eventually, a robust circular battery economy could all but eliminate the need to extract rare metals at all. Alyssa Pointer / The Washington Post via Getty Images

This story was originally published by Grist. Sign up for Grist’s weekly newsletter here.

The race to electrify the world’s vehicles and store energy will require batteries — so many of them, in fact, that meeting the demand we will see by 2040 will require 30 times the amount of critical minerals like lithium, cobalt, and nickel that those industries currently use.

That presents an enormous challenge, one exacerbated by the mining industry’s alarming allegations of labor crimes, environmental destruction, and encroachments on Indigenous land. There are ways to mitigate electrification’s extractive impacts, one of which may seem obvious: Recycle every battery we make. 

Doing so would reduce the world’s need to mine these minerals by 10 percent within 16 years, because the critical materials in batteries are infinitely reusable. Eventually, a robust circular battery economy could all but eliminate the need to extract them at all.

Of course, that would require recovering every EV pack at the end of its life, a sizable undertaking as the United States prepares for hundreds of thousands of electric vehicles to retire by the end of the decade. A nascent ecosystem of startups is working toward that goal, and the Inflation Reduction Act includes tax credits to incentivize the practice. But some electrification advocates say those steps do not go far enough. While the European Union recently passed a regulation mandating EV battery recycling, there is no such law in the U.S. Proponents of a federal recycling standard say that without one, batteries that could be recycled might get left behind, increasing the need for mining and undermining electrification’s environmental benefits. 

“We need a coordinated federal response to truly have a large-scale impact on meeting our demand,” said Blaine Miller-McFeeley, a policy advocate at Earthjustice, which favors a federal recycling requirement. “If you compare us to the EU, we are woefully behind and need to move much more quickly.”

That movement would have to come from Congress, according to Miller-McFeeley. Historically, however, regulating recycling has been left up to the states and local jurisdictions. The Biden administration has instead been supporting the country’s budding EV battery recycling industry, mainly by making it good business to recover critical materials. 

The Department of Energy wants to establish a “battery ecosystem” that can recover 90 percent of spent lithium batteries by 2030. It has granted billions in loans to battery recyclers to build new facilities. Automakers are incentivized to buy those recyclers’ products, because part of the federal EV tax credit applies only to cars with batteries that include a minimum amount of critical minerals that were mined, processed or recycled in the U.S. or by a free-trade partner. Manufacturers also get a tax credit for producing critical materials (including recycled ones) in the U.S.

Daniel Zotos, who handles public advocacy at the battery recycling startup Redwood Materials, said in an email that a healthy market for recycled materials is emerging. “Not only is there tremendous value today in recycling these metals, but the global demand for metals means that automakers need to source both more mined and recycled critical minerals.”

Zotos said Redwood Materials agrees with the approach the federal government has taken. “The U.S. has in fact chosen to help incentivize, rather than mandate, recycling through provisions established in the Inflation Reduction Act, which we’re deeply supportive of.”

During a pilot project in California last year, the company recovered 95 percent of the critical materials in 1,300 lithium-ion and nickel metal hydride EV and hybrid batteries. The cost of retrieving packs from throughout the state was the biggest barrier to profitability, but Zotos said that expense will subside as the industry grows.

A tiny but growing secondary market for EV batteries is also driving their reuse. Most batteries will be retired once their capacity dwindles to about 70 to 80 percent, due to the impact on the car’s range. But they’re still viable enough at that point to sustain a second life as storage for renewable energy like wind and solar power. 

B2U Storage Solutions used 1,300 retired batteries from Nissan and Honda to create 27 megawatts hours of storage at its solar farm just north of Los Angeles in Lancaster, California. Photovoltaic panels charge the packs all day, and B2U sells the stored power to the local utility during peak demand in the evening. “There is more value in reuse,” said company president Freeman Hall, “and we’re not doing anything more than deferring recycling another four or five years.” 

Homeowners and hobbyists are embracing second-life batteries, too. Henry Newman, co-owner of the auto dismantler EV Parts Solutions in Phoenix, said customers buy his Tesla and Nissan Leaf batteries to convert classic cars or create DIY power storage at home. Any batteries that Newman can’t sell are picked up by Li-Cycle, a lithium-ion battery recycler with a plant in Gilbert, Arizona. 

Newman said dismantlers and customers seem to want to do the right thing. “I know there will be people who don’t follow regulation, but my experience in the last six to seven years is that the industry is pretty conscious of it and tries to mitigate throwing these things in the trash,” he said. A law could help prevent mishandling, but Newman worries about any overreach or added costs that would come with more regulation. 

But relying on the market to ensure proper stewardship is risky, said Jessica Dunn, a senior analyst in the clean transportation program at the Union of Concerned Scientists. “The recycling of cars has traditionally been a market-based environment,” she said. “But we’re dealing with a completely different system now. EV batteries are big and have a lot of critical materials in them that we need to get out of them no matter if it’s economical or not.” 

Transporting EV batteries, which can weigh more than 1,500 pounds, is expensive (as much as one-third of the cost of recycling them), dangerous, and logistically challenging. Packs can catch fire if improperly handled, and they are classified as hazardous material, which requires special shipping permits. If the battery is in a remote location or is damaged, a recycler could deem it too much trouble to retrieve without a mandate to do so.

Dunn also said that not all batteries contain enough valuable materials for it to make financial sense to go through the trouble of recovering them. While most EV batteries currently contain high-value cobalt and nickel, a new generation of cheaper lithium-ion-phosphate, or LFP, batteries don’t use those metals. Tesla, Ford, and Rivian all recently announced they will use LFPs in some models.

“Just because there aren’t nickel and cobalt in them doesn’t mean that the lithium isn’t something that we should be recovering,” said Dunn. Redwood Materials said it collects lithium-ion phosphate batteries and uses the lithium within them to assemble new battery components, and that they collect all battery packs no matter their condition.

Finally, without guidelines in place, viable batteries may not be repurposed before being recycled, which Dunn said undermines their sustainability. “You’ve already put all that literal energy — and the environmental impacts that go along with that — into manufacturing these batteries,” she said. “So if you can squeak an extra five to 10 years out of them, that’s a really good option.” 

With the U.S. poised to see about 165,000 electric vehicle batteries retire in 2030, Dunn said the time to ensure no batteries are stranded is now. “We’re not seeing a big wave now, but that’s coming, and so we need to be prepared for that.”

There has been some federal movement toward a recycling requirement. The 2021 bipartisan Infrastructure Investment and Jobs Act directed the Department of Energy to establish a task force to develop an “extended battery producer responsibility framework” to address battery design, transport, and recycling.

Extended producer responsibility, or EPR, is the approach that the EU took in its battery regulation that passed last December. EPR puts the onus on the manufacturer to ensure that what they produce is properly repurposed and then recycled, either by compelling them to pay for the recycling or to handle it themselves. 

Thirty-three states have such laws, covering 16 products ranging from mattresses to packaging. “It is a paradigm shift for how waste is managed in the United States,” said Scott Cassel of the Product Stewardship Institute. But Congress has never passed such a law. 

EV battery recycling might be the issue that could garner bipartisan support for one. Access to critical materials is a foreign policy and national security issue: China processes more than half the world’s lithium and cobalt, which means a steady domestic supply from recycling would help alleviate dependency on a geopolitical rival. 

Building out the infrastructure to dismantle, recover, and process battery materials could also create thousands of jobs, an accomplishment most lawmakers are happy to align themselves with.  

Republican senators alluded to both benefits when supporting the bipartisan Strategic EV Management Act of 2022, which passed as part of the National Defense Authorization Act last year. It requires multiple agencies to work on guidelines for “reusing and recycling” batteries from vehicles retired from the federal fleet. 

Republican Senator Bill Hagerty of Tennessee said in a statement that the bill would ensure agencies could “reap the full economic benefits of EV investments … and do so in a manner that lessens our dependence on communist China.” 

These laws set in motion efforts to design recycling frameworks, but the timelines to develop them span years. In the meantime, a few states are weighing their own mandates. “The states don’t want to wait for any of these bills to move,” Cassel said. “They’re ready to act right now.”

In California, a Senate bill would require battery suppliers to ensure that all “vehicle traction batteries” be recovered, reused, repurposed, or recycled. The bill passed unanimously this week and is headed to the Assembly. Senator Ben Allen, who introduced the bill, said there is bipartisan political and industry support for creating a framework. “You need a system in place,” he said. “That’s like saying, ‘Oh, the people will drive just fine to and from work. We don’t need traffic laws.’” 

As it has been with other clean-vehicle targets, California could be a bellwether for a standard that would eventually take hold nationally.

“We’d love to create a system that could help to inform national policy,” said Allen. “And in this case, with this industry support and bipartisan backing, there actually may be a blueprint here.”

This article originally appeared in Grist at https://grist.org/technology/the-u-s-doesnt-have-a-law-mandating-ev-battery-recycling-should-it/. Grist is a nonprofit, independent media organization dedicated to telling stories of climate solutions and a just future. Learn more at Grist.org

The post The US doesn’t have a law mandating EV battery recycling. Should it? appeared first on Popular Science.

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NOAA predicts a ‘near-normal’ Atlantic hurricane season for 2023 https://www.popsci.com/environment/noaa-atlantic-hurricane-season-2023/ Thu, 01 Jun 2023 12:00:00 +0000 https://www.popsci.com/?p=545060
A satellite view of Hurricane Florence in 2018. Atlantic hurricane seasons runs from June 1 to November 30.
A satellite view of Hurricane Florence in 2018. Atlantic hurricane seasons runs from June 1 to November 30. Deposit Photos

A looming El Niño and warm sea surface temperatures factor into this season’s unique forecast.

The post NOAA predicts a ‘near-normal’ Atlantic hurricane season for 2023 appeared first on Popular Science.

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A satellite view of Hurricane Florence in 2018. Atlantic hurricane seasons runs from June 1 to November 30.
A satellite view of Hurricane Florence in 2018. Atlantic hurricane seasons runs from June 1 to November 30. Deposit Photos

Atlantic hurricane season officially begins on June 1—and a disturbance in the Gulf of Mexico is already brewing. Tropical wave Invest 91-L only now has a 70 percent chance of becoming the first named system of the 2023 Atlantic hurricane season—Arlene—but it will likely bring downpours and gusty thunderstorms to parts of Florida by the end of the work week whether or not it becomes a named storm.

[Related: What hurricane categories mean, and why we use them.]

For the 2023 season, NOAA forecasts a pretty average amount of hurricane activity. In their annual outlook, NOAA predicts a 40 percent chance of a “near-normal season”, a 30 percent chance of an “above-normal season”, and a 30 percent chance of a “below-normal season”. 

The forecast calls for 12 to 17 total named storms—those with winds of 39 MPH or higher. NOAA anticipates that five to nine of these storms could become hurricanes (winds of 74 MPH or higher), including one to four major hurricanes. Major hurricanes are category 3, 4, or 5 storms with 111 MPH winds or higher.

Some of the names for this year’s storms include Cindy, Harold, and Sean among others.

The World Meteorological Organization's list of Atlantic tropical cyclone names for 2023. They are Arlene, Bret, Cindy, Don, Emily, Franklin, Gert, Harold, Idalia, Jose, Katia, Lee, Margot, Nigel, Ophelia, Philippe, Rina, Sean, Tammy, Vince, and Whitney.
The World Meteorological Organization’s list of Atlantic tropical cyclone names for 2023. CREDIT: NOAA.

The 2023 season is anticipated to be less active than recent years, partially due to a tug-of-war between some factors that suppress storm development and some that fuel it. This is the first year in three years without a La Niña pattern present, and the latest forecasts say there is a 90 percent likelihood that El Niño will develop by August and then remain strong in the fall. 

El Niño’s influence on storm development may be offset by favorable conditions in the tropical Atlantic Basin. Those conditions include a potentially above-normal West African monsoon that helps create some of the Atlantic’s stronger and longer-lived storms, all while creating  warmer-than-normal sea surface temperatures in the Caribbean Sea and tropical Atlantic Ocean. 

These warm waters are pure hurricane fuel, and those temperatures have been incredibly high this spring. But the temperatures in the North Atlantic basin, where the storms are born and intensify, and the eastern-central tropical Pacific Ocean, where El Niño forms, are the places to watch.

“This year, the two are in conflict—and likely to exert counteracting influences on the crucial conditions that can make or break an Atlantic hurricane season,” Iowa State University atmospheric scientist Christina Patricola writes in The Conversation. “The result could be good news for the Caribbean and Atlantic coasts: a near-average hurricane season. But forecasters are warning that that hurricane forecast hinges on El Niño panning out.”

[Related: El Niño is probably back—here’s what that means.]

Ocean temperatures in the Atlantic’s tropical regions were unusually warm during the most recent active hurricane seasons. In 2020, the Atlantic produced a record 30 named storms and the 2005 season produced 15 hurricanes including Hurricane Katrina.

The tropical Pacific Ocean influences the Atlantic hurricanes by forming teleconnections—a chain of processes that change the ocean or atmosphere in one region which then leads to larger scale changes that can influence the weather in other places.

“During El Niño events, the warm upper-ocean temperatures change the vertical and east-west atmospheric circulation in the tropics,” Patricola writes. “That initiates a teleconnection by affecting the east-west winds in the upper atmosphere throughout the tropics, ultimately resulting in stronger vertical wind shear in the Atlantic basin. That wind shear can tamp down hurricanes.”

Atlantic hurricane season ends on November 30. In the meantime, NOAA encourages those who could be affected by tropical systems to understand watches and warnings for their area and prepare emergency supplies ahead of time. 

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Why you should sleep naked tonight, according to science https://www.popsci.com/health/benefits-of-sleeping-naked/ Thu, 01 Jun 2023 10:00:00 +0000 https://www.popsci.com/?p=544970
Baby sleeping naked in a white hammock
The secret to more youthful skin? Skip the pj's. Deposit Photos

Rest easy in your birthday suit.

The post Why you should sleep naked tonight, according to science appeared first on Popular Science.

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Baby sleeping naked in a white hammock
The secret to more youthful skin? Skip the pj's. Deposit Photos

Love it or hate it, sleeping naked hits different. Not only is it less laundry to wash, but taking off those pajamas can do wonders for your health. While you may feel self-conscious at first, the openness of resting in the nude can actually boost your confidence and help you look your best self. 

There’s no right or wrong way to get ready for bed—it’s all a matter of preference. And while nakedness won’t miraculously cure all your sleep problems, experts say there are some modest benefits to going au naturel.

1. Younger-looking skin 

James Walker, a medical advisor for the healthcare platform Welzo, says sleeping without clothes gives your skin an opportunity to breathe, allowing for better airflow. He explains that clothes, especially tight-fitting ones, can restrict blood circulation, making it harder for your skin to receive vitamins and minerals needed for collagen production. Certain materials also might add to your discomfort in bed. Aditya Kashyap Mishra, a sex educator and relationship expert for Lustyboy, says synthetic fibers like spandex and nylon trap moisture in your skin—the added heat can make it hard to fall asleep. Other synthetic fabrics and pajamas with dyed cotton may cause skin irritation and acne from the fabric rubbing against you.

[Related: 5 surprising beauty benefits of running]

Tossing and turning from wearing the wrong clothing can affect your quality of sleep and your skin. The body makes collagen during sleep, which is essential for supple and younger-looking skin. Research shows that getting less than the recommended seven hours of sleep for adults increases skin aging and slows down recovery from sun damage.

2. A cooldown for your body

As you might expect, sleeping with your skin exposed helps regulate your temperature at night, says Walker. The drop in body temperature can prevent overheating—a real concern in summer and in places where winter is virtually non-existent. Research shows that feeling extremely hot at night increases wakefulness. Even if you manage to land some shut-eye, it will likely be less restorative with shorter cycles of slow-wave sleep and REM sleep. 

Feeling colder, on the other hand, can also help you fall asleep faster. Your body temperature is synced up with the light-dark cycles outside; it normally falls when the sun goes down. A lower body temperature from sleeping nude tells your biological clock it’s time to shut down.

3. Fewer fungal infections

Fungi and bacteria thrive in warm and damp areas like your nether regions. Mishra explains that trapped sweat from moisture-wicking clothing increases the risk of microorganisms building up, resulting in yeast infections and jock itch. Jock itch can also come from constant friction from clothes. Stripping down to nothing will allow more air circulation and keep your intimate parts from getting overheated.

4. Better emotional intimacy

Skin-to-skin contact between partners can strengthen your relationship. Research shows touching among consenting adults releases the “love hormone” called oxytocin. This chemical reduces stress and encourages openness and social bonding with others. One US marketing poll of more than 1,000 adults found that 57 percent of couples who regularly snoozed in the nude were happy in their relationship compared to 48 percent of pajama wearers. Getting used to baring it all in front of a partner can counteract self-consciousness of how you look in bed. Mishra says this openness is a huge stress reliever, and the added relaxation can help you sleep better.

What if you want to sleep in clothes?

If you’re still not convinced about sleeping naked, there are other ways to improve your slumber. Avoid tight or constricting apparel that would restrict your movement, irritate your skin, or otherwise cause discomfort. Walker recommends going to bed in loose-fitting and breathable fabrics like cotton or bamboo, or one simple layer like an oversized T-shirt and shorts to avoid overheating.

[Related: 11 ways to sleep better in unbearable heat]

There’s nothing wrong with slipping on a pair of socks before bed, Walker adds. Some people find it comforting and helpful in keeping their feet warm, especially during colder seasons. However, he warns against sleeping in socks that are too tight as they could restrict circulation. 

Whether you go to bed nude or in clothes, you should always remove your makeup and any heavy jewelry. Snoozing with makeup on can clog pores and lead to future breakouts. “It’s best to cleanse the face thoroughly before sleeping to allow the skin to breathe and regenerate,” advises Walker. Additionally, laying down in chunky necklaces, bangles, and other jewelry can be painful and might even leave abrasions on the skin.

“Ultimately, the key is to prioritize comfort and choose sleepwear that allows for optimal relaxation,” Walker says. “It’s always a good idea to listen to your body and make choices that help you feel comfortable and at ease during sleep.”

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This fake beach is a magnet for tourists—and peaceful endangered sharks https://www.popsci.com/environment/fake-beach-shark-conservation/ Thu, 01 Jun 2023 01:00:00 +0000 https://www.popsci.com/?p=544666
Angelsharks are masters of disguise, so spotting them is a challenge.
Angelsharks are masters of disguise, so spotting them is a challenge. Photo by Mike Sealey

In the Canary Islands, endangered angelsharks and European tourists are attracted to the same habitat which, for once, isn’t bad for the wildlife.

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Angelsharks are masters of disguise, so spotting them is a challenge.
Angelsharks are masters of disguise, so spotting them is a challenge. Photo by Mike Sealey

This article was originally featured on Hakai Magazine, an online publication about science and society in coastal ecosystems. Read more stories like this at hakaimagazine.com.

Out in the Atlantic Ocean, roughly 100 kilometers off the northwest coast of Africa, lies an archipelago known as the Canary Islands, created millions of years ago by intense volcanic activity. The biggest and most populated island, Tenerife, rises from the deep-ocean floor to a series of peaks, one of which is the third-largest volcano in the world. Tenerife’s interior highlands are a moonscape, while its coastline of lava rock and sheer cliffs is pounded by surf. In contrast to most of the island’s stark geology, north of the island’s capital, Santa Cruz, is a long crescent-shaped beach of soft yellow sand, with groves of palm trees and a calm bay created by a long breakwater. This is Playa de las Teresitas, a magnet for northern European tourists craving winter sun.

But most of the people sunbathing on Teresitas are likely unaware of what lurks in the shallow waters lapping the shoreline. The bay—engineered and less than 10 kilometers from the Canaries’ second-largest city—is a surprising haven for pups of one of the world’s most critically endangered fish: the angelshark.


When the Spanish took control of the Canaries in the 1400s, they began cultivating cash crops: cochineal and sugar cane in the beginning, and later adding bananas, tomatoes, and other valuable commodities. For centuries, the islands’ economy thrived, but it was a fragile wealth. Over the years, livelihoods were threatened by cycles of crop disease, competition from cheaper markets, and lava flows that wiped out harvests and turned good agricultural land into barren terrain. In the 1950s, the boom in package tourism showed promise as a new cash crop. But while the islands had the sunshine, warm climate, and ease of access from Europe needed for this new industry, they were missing a vital element: picture-postcard sandy beaches.

Cue planners on Tenerife, who concocted an audacious plan to make over one of the island’s exposed lava-rock beaches. They chose a stretch of coastline close to Santa Cruz and expropriated the avocado farms and other smallholdings. Earthmovers leveled the foreshore and intertidal zone, and they constructed a breakwater over a kilometer long. And then, from the Western Sahara on Africa’s northwest coast, they shipped in the pièce de résistance: 240,000 tonnes of sand.

By 1973, this gargantuan project, environmentally questionable from today’s viewpoint, was complete. As anticipated, tourists arrived. Unanticipated was what their presence gave to one of the world’s most endangered fish species—visibility. Maybe angelsharks always gathered here, but until recently, no one really knew.

Endangered Species photo
To entice tourists, developers on Tenerife in the Canary Islands created Playa de Las Teresitas, a popular beach for tourists, locals, and in the shallow waters, angelsharks. Photo by Mike Workman/Shutterstock

Along Playa de las Teresitas, rows and rows of tourists lounge on beach chairs under umbrellas or pad across soft sand to cool down in the water. The breeze creates tiny sapphire-tipped waves on the water’s surface, a magical cover for what lies beneath—an angelshark nursery.

Female angelsharks regularly migrate to these ideally sheltered waters to give birth to anywhere between eight and 25 live pups, who remain in the shallows for about a year. Feeding on cuttlefish and other small prey, they grow to around 50 centimeters, about the same length as a newborn baby. Then they disappear for years until they are mature. Where they go is a mystery.For centuries, angelsharks had been common along the Atlantic coast of North Africa and Europe, as well as the Mediterranean. The ancient Greeks fished them; Pliny the Elder described the use of their skin to polish wood and ivory. On the British Isles, they were called monkfish for their resemblance to a monk’s hooded robes. With the advent of industrial bottom trawling in the late 1800s, they were easily caught and became a common food fish. By the 1960s, aggressive fishing of angelsharks, coupled with their extremely low reproductive rate, led to a dramatic decline in their populations. Targeting them eventually became commercially unviable and the name monkfish was relegated to another species, the anglerfish.

But angelsharks were still by-catch in other fisheries, and by the early 1970s, as developers barged Saharan sand to Tenerife, the fish were pushed close to extinction in most parts of the North Atlantic and the Mediterranean.

Endangered Species photo
Biologists on the Canary Islands only became aware of the islands’ robust population of angelsharks about a decade ago. Photo by Mike Sealey

In the European Union and the United Kingdom, it has become illegal to fish or retain angelsharks. If one is accidentally caught, fishers must return it alive to the sea. But the main threat to angelsharks remains the powerful bottom-trawling industry, which accounts for over 30 percent of fish landed in the European Union.

The story in the Canary Islands is slightly different. Michael Sealey, a marine biologist with the Angel Shark Project (ASP) in Tenerife, says that bottom trawling has never been as viable in the Canaries as in most of Europe and the Mediterranean. The seabed is mostly too deep, he explains, the underwater topography laced with jagged seamounts and reefs where fishing gear can get hung up. On top of that, the European Commission has halted all trawling in the Canaries since 2005.

But biologists only became aware about a decade ago that the Canaries host an angelshark population. Subsequently, in 2014, the Universidad de Las Palmas de Gran Canaria, Museum Koenig Bonn, and Zoological Society of London collaborated to establish ASP. The project’s goal: to gather data on critical habitats, movement patterns, and reproductive biology of angelsharks, and work with local communities and officials to protect the fish. Life history information is crucial for developing effective conservation strategies and protecting valuable, if improbable, habitat—like Playa de las Teresitas.

But angelsharks are not the easiest of research subjects. They are masters of disguise, so spotting them is a challenge. They have a peculiar flattened shape and spend most of their time lying on the ocean bottom partially covered by sand. Their coloring—reddish- or greenish-brown scattered with small white spots—helps them blend into the seabed.

Endangered Species photo
Angelsharks mostly stay out of the way of swimmers at busy beaches, such as Playa de las Teresitas. Photo by Mike Sealey

Gathering data on such elusive animals, with low population densities spread over a huge area, is labor intensive. Help has come in the form of citizen science: everywhere in the Canary Islands, recreational divers and fishers are invited to make online reports of any sightings or accidental catches of angelsharks. Through an ASP initiative, dive operators conduct friendly competitions to see which company can record the most sightings, thereby increasing data collection, particularly from citizen scientists.

Rubén Martinez, a dive instructor in Lanzarote, the easternmost island of the Canaries, is a keen advocate of angelsharks and regularly volunteers for ASP surveys. He helps with procedures such as tagging the fish with either spaghetti tags—an easily attached plastic loop—or acoustic tags. Both are done on the spot without having to catch the fish or lift it out of the water. “We work in a team and practice beforehand,” Martinez says. After an angelshark has been spotted in the sand, the team places a mesh attached to a sturdy frame over the animal. They take a small sample of fin for DNA analysis and attach a tag to the base of the dorsal fin. The whole procedure, when done properly, takes less than a minute.

Endangered Species photo
A tagging program initiated by the Angel Shark Program in the Canary Islands has led to a wealth of data. Photo by Mike Sealey

Surveys have shown that other beaches in the Canary Islands are also potential nursery sites. Interestingly, most of them have been altered, like Teresitas, to make them more attractive to people. On Lanzarote, Playa Chica boasts another long sweep of imported sand. It’s a magnet for divers—as well as a spectacular and easily accessible site—so the number of sightings of mature angelsharks off this shoreline is one of highest in the whole archipelago. How do the sharks react to these shoals of wetsuited humans? Alba Esteban Pacheco, a biologist and former dive instructor with Euro Divers Lanzarote, admits that while there have been instances of divers getting too close to the sharks, most dive companies are sensitive in this regard and brief their clients well. They have little choice: in 2019, Spain introduced legislation in the Canaries that made disturbing the sharks or harming their habitat and breeding grounds a criminal act subject to large fines.

Pacheco is very clear that she keeps her dive clients at least the recommended one meter distance from any angelsharks they find hiding in the sand. “Also,” she says, “these days, with everyone videoing everything and posting it on social media, it’s hard for divers to step out of line.”

But is this enough? Eva Meyers, a cofounder of ASP, acknowledges that the diving community plays a crucial role in conservation of the species. But she adds that much more needs to be done to ensure the long-term survival of angelsharks in areas like Playa Chica.

Endangered Species photo
Angelsharks have become a magnet for recreational divers from around the world. Photo by Frank Schneider/imageBROKER/Alamy Stock Photo

A recovery plan ASP developed with local authorities is in the final stages. It will include measures such as signage along sensitive coastlines and establishing a code of conduct for divers throughout the Canaries.

Among international dive communities, the word is out about the chance to see mature angelsharks in the Canaries, and this is a growing part of the tourism sector. Indeed, shark diving all over the world is a boon to economies. It generates over US $24-million yearly in the Canaries. Globally, shark-diving tourism generates over $300-million yearly, and local communities benefit much more from shark diving than from shark fishing. In some cases, this has led to the creation of marine reserves, such as in Fiji, which help other marine species as well.

Many divers may now be cognizant of the fragility of the angelshark population, but what about all those people splashing about and swimming in the all-important nursery areas just off the beaches? Sealey thinks that human activity in the shallow nursery areas influences angelshark behavior. On busy beaches like Teresitas, juveniles normally retreat to deeper water during the day when lots of people are around. During the COVID-19 pandemic, restrictions kept people off the beach. After almost two years of peace, angelsharks seemed unprepared for the people wading back into the water, as swimmers reported an unusual number of bites soon after restrictions lifted. The fish rely on their camouflage for protection, but when stepped on, they might lunge up from their hiding place and bite, though they usually swim away. Known locally as “gummings,” the bites are not serious and rarely draw blood. But the increase in gummings was an indication that the juveniles had adapted to remaining hidden in the shallows 24/7 to conserve energy. Post-pandemic, angelsharks have adapted again, by heading into deeper water earlier in the day and avoiding interactions with humans, as do many other urban wildlife species.

Back in the 1970s, did angelsharks also adapt to the Canaries’ headlong efforts to redesign itself for tourists? It’s intriguing to think that the massive, environmentally disruptive projects to remake beaches could have accidentally enhanced the habitat for one of the world’s rare fish species. But what’s clear is that after the breakwater was built and the sand arrived, people followed, and in the calm, shallow waters they began to see baby angelsharks. And unlike how many an association between humans and wildlife ends—in conflict and dead animals—this time it led to conservation.

This article first appeared in Hakai Magazine and is republished here with permission.

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UFO data is honestly a mess, NASA panel says https://www.popsci.com/science/nasa-unidentified-anomalous-phenomena-panel/ Wed, 31 May 2023 23:00:00 +0000 https://www.popsci.com/?p=544894
An unidentified object makes an apparent atmospheric wake.
This unidentified object, captured in South Asia and analyzed by the All-domain Anomaly Resolution Office, may be a commercial aircraft. Department of Defense

Unsystematic, fragmented info and online abuse prevent experts from making hard conclusions on unidentified aerial phenomena.

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An unidentified object makes an apparent atmospheric wake.
This unidentified object, captured in South Asia and analyzed by the All-domain Anomaly Resolution Office, may be a commercial aircraft. Department of Defense

After decades of the US government generally avoiding discussion of UFOs, NASA and the Department of Defense have embarked on investigations into mysterious, unexplained sightings, aerial or otherwise: what are now being dubbed unidentified anomalous phenomena, or UAPs. NASA launched a nine-month UAP investigation in October. In the spirit of the space agency’s goal of transparency for that work, on Wednesday it live-streamed a public meeting of its independent UAP study team. The panel concluded it needed quality data, noting the fragmentary nature of what was available to analyze has restricted research into UAPs.  

The subject of UAPs “has captured the attention of the public, the scientific community, and the government alike,” said Daniel Evans, assistant deputy associate administrator for research at NASA’s Science Mission Directorate, at the meeting’s outset. “It’s now our collective responsibility to investigate these occurrences with a rigorous scientific scrutiny that they deserve.” 

The 16-person study group includes planetary scientist David Grinspoon, former NASA astronaut Scott Kelly, and science journalist Nadia Drake. It’s chaired by David Spergel, an astrophysicist and president of the nonprofit science organization the Simons Foundation.

[Related: Is the truth out there? Decoding the Pentagon’s latest UFO report.]

The NASA team will write a final report by sometime in July. The study team’s mission is not to render a verdict on the nature of UAPs, Spergel said, but to set the stage for later research. They aim to clarify how NASA can go about scientifically investigating UAPs. To that end, in Wednesday’s meeting, they discussed the current knowledge about UAPs (these are not extraterrestrial), standards of evidence for determining just what they might be, and the difficulty of obtaining high-quality human reports. 

“Our role here is not to resolve the nature of these events, but rather to give NASA guidance to provide a roadmap of how it can contribute to this area,” Spergel said. 

The team has sifted through available UAP data and found that many reports can be pinned down to known sources, such as distant aircraft, sensor artifacts, high altitude balloons, or atmospheric events. When it comes to learning more about the persistently unidentifiable phenomena on record, though, the team found the information lacking. 

“The current data collection efforts regarding UAPs are unsystematic and fragmented across various agencies, often using instruments uncalibrated for scientific data collection,” Spergel said. “Existing data and eyewitness reports alone are insufficient to provide conclusive evidence about the nature and origin of every UAP event.”

[Related: The truth about Area 51 UFO sightings, according to a local expert]

It’s possible that more direct, targeted observations of UAPs could help, using everything from FAA radar installations to sensors on commercial aircraft to government spy installations. But as Sean Kirkpatrick, the director of the Department of Defense’s All-domain Anomaly Resolution Office (AARO) told the team, “Most people, including the government, don’t like it when I point our entire collection apparatus to your backyard.”

“We’ve got to figure out how to do this only in the areas that I can get high confidence there’s going to be something there,” Kirkpatrick continued, “and high confidence I’m not going to break any laws.”

While AARO may deal with some classified UAP data, the NASA team is only working with unclassified information so that its report can be made fully public. But that doesn’t necessarily mean that the data NASA has to work with is inferior to the Department of Defense’s information—many times, the classification of a UAP sighting has nothing to do with UAPs, according to Nicola Fox, associate administrator of NASA’s Science Mission Directorate, and everything to do with what snapped the photo.

“Unidentified anomalous phenomena sightings themselves are not classified. It’s often the sensor platform that is classified,” she said, to prevent foreign adversaries from understanding those sensor’s capabilities. “If a fighter jet took a picture of the Statue of Liberty then that image will be classified, not because of the subject in the picture, but because of the sensors on the plane.”

There are drawbacks for the NASA investigators working in public, however. Although he did not specify exactly what happened, Evans noted that members of study team “have been subjected to online abuse due to their decision to participate on this panel,” adding that “any form of harassment towards our panelists only serves to detract from the scientific process, which requires an environment of respect and openness.”

Harassment of NASA study team members also highlights another problem with seriously studying UAPs, according to Spergel: the stigma associated with reporting a UAP sighting, especially among some professionals. ”Despite NASA’s extensive efforts to reduce the stigma, the origin of the UAPs remain unclear, and we feel many events remain unreported,” he said. “Commercial pilots, for example, are very reluctant to report anomalies, and one of our goals in having NASA play a role is to remove stigma and get high quality data.”

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The Dallas airport is testing out EV charging bots that roll around like suitcases https://www.popsci.com/technology/ziggy-ev-charging-robot-dallas-airport/ Wed, 31 May 2023 22:00:00 +0000 https://www.popsci.com/?p=544933
ZiGGY mobile EV charger connected to vehicle in parking lot.
ZiGGY will show off its skills this summer at Dallas-Fort Worth International Airport. EV Safe Charge/YouTube

Mobile EV charging stations may soon juice up travelers' parked cars while they're flying high.

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ZiGGY mobile EV charger connected to vehicle in parking lot.
ZiGGY will show off its skills this summer at Dallas-Fort Worth International Airport. EV Safe Charge/YouTube

One of the world’s busiest airports will soon showcase an innovative, undeniably cute way to speed up travelers’ entrances and exits. First announced earlier this month, Dallas Fort Worth International Airport (DFW) is partnering with EV Safe Charge to demonstrate how the company’s mobile electric vehicle charging station, ZiGGY, could be deployed in public spaces to economically and conveniently power up consumers’ parked cars.

[Related: Electric cars are better for the environment, no matter the power source.]

Electric vehicles are an integral component of the societal shift towards clean, renewable energy. Unfortunately, battery shortages stemming from supply chain issues alongside a need for evermore charging stations is hampering a wider adoption of green transportation. ZiGGY obviously isn’t a catch-all fix, but it’s still a novel tool that both its makers and DFW hope to highlight over the summer as part of the airport’s series of EV charging solution demos.

“We know that electric vehicles will be a big part of the future of transportation,” Paul Puopolo, DFW’s Executive VP of Innovation, said in a statement, adding their air hub is “leaning into emerging technology now so that we are prepared to meet the needs of the airport community well into the future.”

ZiGGY itself resembles a large vending machine on wheels, which makes a certain amount of sense given it dispenses electric fuel on demand. Using geofencing technology, app-based controls, and on-board cameras, ZiGGY can be deployed directly to the location of your parked EV, where a user can then connect the charging bot to their ride. To court additional revenue streams, each ZiGGY also features large video screens capable of displaying advertisements. Don’t worry about getting stuck behind it if someone is using a ZiGGY, either—its dimensions and mobility ensures each station can park itself behind an EV without the need for additional space.

Speaking with Ars Technica on Tuesday, EV Safe Charge’s founder and CEO Caradoc Ehrenhalt explained that the idea is to deploy ZiGGY fleets to commercial hubs around the world, such as additional airports, hotels, and shopping centers. “What we’re hearing from people… is the common thread of the infrastructure being very challenging or not possible to put in or not cost effective or takes too much time. And so there really is the need for a mobile charging solution,” said Ehrenhalt.

[Related: Why you barely see electric vehicles at car dealerships.]

Of course, such an autonomous vehicle could find itself prone to defacement and vandalism, but Ehrenhalt apparently opts to look on the sunnier side of things. “Ziggy is fairly heavy because of the battery,” they cautioned to Ars Technica. “It has cameras all around and sensors, including GPS, and so there potentially could be [vandalism], but I’m always hoping for the best of humanity.”

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The easiest ways to share your WiFi password https://www.popsci.com/how-to-share-wi-fi-passwords/ Mon, 28 Feb 2022 22:16:24 +0000 https://www.popsci.com/uncategorized/how-to-share-wi-fi-passwords/
A hand holding a phone showing a QR code for sharing WiFi.
A QR code is an easy way to share your WiFi password, if you know how to make one. Tima Miroshnichenko / Pexels

You don't even have to learn your own password.

The post The easiest ways to share your WiFi password appeared first on Popular Science.

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A hand holding a phone showing a QR code for sharing WiFi.
A QR code is an easy way to share your WiFi password, if you know how to make one. Tima Miroshnichenko / Pexels

When a friend asks you to share your WiFi password, how long is your explanation? Saying “Oh, it’s a mess of letters and numbers taped to the router behind the refrigerator in the rental unit upstairs” doesn’t make things easy for them. 

There are better ways to share your WiFi. And sure, each of these tips requires some minimal hoop-jumping, but it’s a heck of a lot easier than trying to dictate a password like “dD^#i16HJ9vD” to someone while they fumble with the password field.

It’s also worth noting that if you often find yourself needing to share your WiFi password, you should set up a guest network to allow people to access your internet while keeping other devices in your home safe. We’ll explain how below, but for now let’s satisfy your immediate needs.

How to share your WiFi password on Android

Google’s operating system allows you to share WiFi passwords via scannable QR codes, so you won’t have to watch your friends hunt and peck on their phone keyboards. 

  1. Unlock your phone and open the Quick Settings menu—swipe down with two fingers from the top of the screen.
  2. Long-press Internet to open the menu, and then tap the cog icon next to the WiFi network you’re connected to.
  3. Tap Share.
  4. Your phone will ask you to verify your identity with a biometric or a passcode. Once you provide it, it’ll generate a QR code with your home network’s info.

If your guests are Android users, you can share the info via Nearby, Google’s version of Apple’s AirDrop. To do this, tap the Nearby button below the QR code and wait until your device finds your guests so they can hop online.

If your friends wield iPhones or iPads running iOS 11 or later, they should be able to scan the QR code with their regular camera app and instantly join the network. 

How to share your WiFi password on iOS, MacOS, and iPadOS

Sharing a WiFi password between Apple devices is even easier—at least if you’ve done some work beforehand. Specifically, both people need to have the email address associated with their Apple ID saved in the other person’s contacts, and you need to be signed into iCloud. For WiFi sharing to work, both devices also need to have WiFi and Bluetooth on, and personal hotspot off.

Unlock the device sharing the password. Have your friend tap the network on their device. A prompt should appear on the one that’s already connected—tap Share Password, then Done.

You’ll need to be somewhat near their device, and in my experience, the process can be a little finicky, but it’s something to consider. If the prompt doesn’t come up, you can always create a dedicated WiFi QR code.

If all else fails, generate your own network QR code

If you find the options above are not working or you have a lot of people coming over and don’t want to share your password with each one, you can print (or cross-stitch, if you’re ambitious) a QR code they can scan. There are plenty of tools out there that will help with this task, but I like QiFi.org. It’s incredibly straightforward: 

  1. Type in your network’s name in the box under SSID.
  2. Select the encryption type. If you’re not sure, check your router’s administration page.
  3. Type the network’s password under Key.
  4. Click the Generate button, then choose Print or Export for a copy you can stick just about anywhere. 

QiFi does the heavy lifting offline, too, so you won’t have to worry about giving a random website your WiFi information.

Create a guest network before you share your WiFi password again

Ideally, you don’t want to give people access to your main WiFi network. This will give their laptop or phone access to all the devices in your home, which means they—or any malware installed on their system—can compromise your data. You can avoid this by creating a guest network, as we noted above. Most routers have this ability built in. 

[Related: Device won’t connect to WiFi? Here’s what to do first.]

1. Head to your router’s administrator page by typing 192.168.1.1 into your address bar. This is a private IP address some internet service providers use as a gateway to access their routers’ settings. If that one doesn’t work for you, there are other numbers you can try. You can also check the sticker on the bottom of your router or find its user manual. 

2. Look for an option in the settings called Guest Network and set it up with a WPA2 password, if you can. 

  • Note: Some routers only allow open guest networks, which I’d recommend against since they allow good-for-nothing rogues to snoop on your guests’ traffic. If you have the ability to do so, you should also make sure to block guest access to local network devices and prevent them from accessing your router’s settings.

3. Give your guest network an easy-to-remember name and at least a somewhat easy-to-remember password. Note that simpler passwords are inherently less secure, but for this specific use case, I’d argue the popular “four random words” method is secure enough. You can use a generator like Correct Horse Battery Staple to make one for you. That way, you can easily remember the password, and your grandma will have no problem typing it in when she visits.

This story has been updated. It was originally published on June 17, 2019.

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A Strawberry Moon, solstice, and meteor shower will dance across the skies this June https://www.popsci.com/science/stargazing-guide-june-2023/ Wed, 31 May 2023 20:00:00 +0000 https://www.popsci.com/?p=544716
A full moon rises with clouds below. June's Strawberry Moon peaks on June 3.
Moon fans should keep their eyes peeled for the Strawberry Moon on June 3 and 4. NASA/Joel Kowsky

Summer officially begins in the Northern Hemisphere on June 21 at 10:58 AM EDT.

The post A Strawberry Moon, solstice, and meteor shower will dance across the skies this June appeared first on Popular Science.

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A full moon rises with clouds below. June's Strawberry Moon peaks on June 3.
Moon fans should keep their eyes peeled for the Strawberry Moon on June 3 and 4. NASA/Joel Kowsky
June 1 and 2Mars Passes Through Beehive Star Cluster
June 3 and 4Full Strawberry Moon
June 21Summer Solstice
June 27Bootid Meteor Shower Maximum

Those of us in the Northern Hemisphere are enjoying the longest daylight hours of the year ahead of the summer solstice, and across the world many may even be able to see a unique sunspot on the surface of our favorite star.  Summer stargazing season is quickly approaching, but summer skies can be hazy which makes  some celestial events difficult to see. But there is still plenty to see in the mild night skies this June. Here are some events to look out for and if you happen to get any stellar sky photos, tag us and include #PopSkyGazers.

[Related: The Strawberry Moon, explained.]

June 1 and 2- Mars passes through Beehive star cluster

To kick off the month, Mars will be passing through a star cluster called the Beehive cluster or M44. It’s located in the crabby constellation Cancer, and Mars will appear as a brilliant red ruby surrounded by sparkly diamonds.  

To find Mars, first look for the bright planet Venus in the western sky. The two bright stars that are strung out to one side of Venus are the constellation Gemini’s twin stars Castor and Pollux. Mars should be the reddish light just above Venus, Pollux, and Castor. Binoculars and a dark sky will help you see a smattering of stars just beside Mars. 

The Beehive cluster is about 557 light-years away from Earth and is home to at least two planets. 

June 3 and 4- Full Strawberry Moon

June’s full moon will reach peak illumination at 11:43 PM EDT on June 3. Just after sunset, look in the southeastern sky to watch the moon rise above the horizon. June’s full moon is typically the last full moon of the spring or the first of the summer. 

The name Strawberry Moon is not a description of its color, but instead a reference to the ripening of “June-bearing” strawberries that are ready to be gathered and gobbled. For thousands of years, the  Algonquian, Ojibwe, Dakota, and Lakota peoples used this term to describe a time of great abundance. Some tribal nations in the northeastern US, including the Wampanoag nation, celebrate Strawberry Thanksgiving to show appreciation for the spring and summer’s first fruits. 

Other names for June’s full moon include the Gardening Moon or Gitige-giizis in Anishinaabemowin (Ojibwe), the Moon of Birthing or Ignivik in Inupiat, and the River Moon or Iswa Nuti in the Catawba Language of the Catawba Indian Nation in South Carolina.

[Related: See hot plasma bubble on the sun’s surface in powerful closeup images.]

June 21- Summer Solstice

Summer officially begins in the Northern Hemisphere at 10:58 AM EDT on June 21 which marks the summer solstice. This is when the sun travels along its northernmost path in the sky. At the solstice, Earth’s North Pole is at its maximum tilt of roughly 23.5 degrees towards the sun. It is also the longest day of the year, and you can expect roughly 16 hours of daylight on June 21 in some spots in the Northeast.

After June 21, the sun appears to reverse course and head back in the opposite direction, towards the south, until the next solstice in December. 

June 27- Bootid Meteor Shower Maximum

June’s Bootid meteor shower begins on June 22, but it is expected to reach its peak rate of meteors around 7 PM EDT on June 27. The Bootid meteors should be visible when the constellation Bootes is just above the horizon. The moon will be in its first quarter phase at the shower’s peak, and will set at about 1:30 in the morning, making for minimal light interference later in the night. 

June’s Bootid meteor shower was created by the comet 7P/Pons-Winnecke and expected to last until July 2.

The same skygazing rules that apply to pretty much all space-watching activities are key this month: Go to a dark spot away from the lights of a city or town and let the eyes adjust to the darkness for about a half an hour. Then, just sit back and let the summer skies dazzle.

The post A Strawberry Moon, solstice, and meteor shower will dance across the skies this June appeared first on Popular Science.

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The tallest building in the world remains unchallenged—for now https://www.popsci.com/technology/tallest-building-in-the-world/ Wed, 31 May 2023 18:00:00 +0000 https://www.popsci.com/?p=544427
the burj khalifa, the tallest building in the world in dubai
The Burj Khalifa. Depositphotos

The Burj Khalifa soars over 2,700 feet high, and a tower designed to rise even higher is on pause. What happens next is anyone's guess.

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the burj khalifa, the tallest building in the world in dubai
The Burj Khalifa. Depositphotos

For more than a decade, the king of the skyscrapers—the tallest building in the world—has been the Burj Khalifa in Dubai. With a total height of 2,722 feet, it’s the undisputed champion of the vertical world, a megatall building constructed with a core of reinforced concrete that sits on a piled raft foundation

Since its completion, the 163-story building has become a shining part of the world’s architectural and cultural landscape, providing a soaring platform for content that will make your stomach clench. A woman donned flight attendant garb and stood at its dizzying pinnacle not once but twice to hawk for Emirates airlines, with the second stunt involving an enormous A380 aircraft flying behind her. And Tom Cruise famously scaled its glass exterior in a Mission Impossible film.

The Burj Khalifa has owned the superlative designation of tallest building in the world since 2010, towering over everything else. “That’s pretty good staying power considering that there was actually a pretty high rate of replacement—between the replacement of the Sears Tower by Kuala Lumpur’s Petronas Towers, then Taipei 101, and then we moved onto the Burj, which is considerably higher than its predecessors by a good margin,” says Daniel Safarik, the director for research and thought leadership at Council on Tall Buildings and Urban Habitat (CTBUH) in Chicago.

“That begs the inevitable question then: What’s going to be the next new tallest building in the world? And I think the answer is, we don’t know,” he adds. “Initially it was projected to be the Jeddah Tower in Saudi Arabia, but that building has stopped construction with no specified resumption date.” 

The tallest building in the world rises into the unknown 

Adrian Smith is the architect behind the Burj Khalifa, as well as for the on-pause Jeddah Tower. In a video chat from Chicago, he reflects on the question of when and if another building will surpass the height of the Burj. “I think inevitably, that’s the case,” he says.

“One of the interesting things about the ‘tallest building in the world’ as a title, is that if one is serious about doing the tallest building in the world, there’s an enormous amount of publicity that goes along with that,” he adds. Smith is now at Adrian Smith + Gordon Gill Architecture and formerly was at Skidmore, Owings & Merrill, which is known as SOM. “We’ve had clients hire us to do world’s tallest buildings before—they get an enormous amount of publicity and then for whatever reason, it doesn’t happen. Usually, 90 percent of the time, that reason is money.” 

As for the on-pause Jeddah Tower, which used to be called Kingdom Tower, Smith says that “it’s pursuing the process of starting up again,” and adds, “I have nothing that I can really disclose at all.”

Earlier this year, the Los Angeles Times took a close look at the Jeddah Tower’s frozen progress, and other mega projects in Saudi Arabia, reporting that the tower, at 826 feet tall, “remains a construction site with no construction.” 

[Related: 6 architectural facts about history’s tallest buildings]

But regardless of the Jeddah Tower’s question mark, the Burj remains a decisive and enormous exclamation point. Each time a new tallest building in the world rises up, its designers, engineers, and contractors are pushing into unexplored territory. “First of all, the structure is the most important single thing in a supertall building,” Smith reflects. “And the reason it’s the most important thing is that very few of them are done, and the history of the design process for a supertall—especially a world’s tallest—if it’s truly a world’s tallest, it’s never been done, you don’t know what you’re going to run into.”

The world’s tallest tower came from ‘a tube’

The Burj Khalifa’s core, which is supported by buttresses, is made of reinforced concrete. That’s a change from some of the classic skyscrapers of the previous century that may come to mind. “The structure of Sears Tower is all steel,” Smith says. So too is the structure of the Empire State Building, now just the 51st tallest building in the world but standing proudly since 1931. 

“The structure of Burj Khalifa is all concrete,” he adds. “And the structure for Kingdom Tower will be all concrete as well—but when I say all concrete, they’re heavily reinforced concrete structures. A lot of steel goes into that concrete.” 

Indeed, concrete technology has evolved over the decades, allowing it to have higher and higher compressive strength—the strength it can withstand as gravity pulls on it downwards. 

Stefan Al, an architect, author of the book Supertall, and an assistant professor at Virginia Tech, charts just how much concrete has improved. In the 1950s, he says, concrete was rated at around 20 megapascals. The concrete in the Burj was 80 megapascals, and today’s can do about 250 megapascals. “So basically it’s gotten 10 times stronger—or 10 times more able to withstand compression, meaning you can have 10 times more weight coming from top,” he says. “That’s certainly super impressive.” 

There’s another benefit to concrete (don’t get it confused with cement), which is the way it gets up to where workers need it—by being pumped up and then flowing out of a tube. Reinforced concrete’s current popularity is “a function of concrete’s ability to pump, because that makes it much easier to work with,” Al says. 

That’s different from working with steel way up high, because for that, Al says, “you need super-large cranes” to hoist the beams upwards. And concrete is quick. Al notes that using concrete in a city like New York can result in a building story going up every two to three days. 

Of course, pumping concrete up against gravity produces its own challenges—and opportunities to celebrate. A company that makes concrete pumps, Putzmeister, boasted that its equipment was able to get the material up 1,988 feet—a record at the time. In 2019, they looked back on that 2008 accomplishment, punning that in helping build the Burj, “Putzmeister was a concrete part.”

Smith points out that the plans for the Jeddah Tower call for it to be made out of concrete as well, including even its top spire, which on the Burj is made from steel. “Every few years, technology advances and changes—the concrete gets stronger. There are new additives, new ways of making concrete that’s better for this kind of application,” he says. “If you think about Burj Khalifa and Kingdom [Jeddah] Tower, they’re ultimately built out of a tube that’s maybe 8 inches to a foot in diameter.” He chuckled. 

The second-tallest building in the world

Words like supertall and megatall may sound vague, but in fact they have specific definitions. A supertall building is at least 984 feet tall, while a megatall stands at least 1,968 feet high. At 1,776 feet tall, One World Trade in New York City is a supertall building, but not a megatall one, and is the sixth-tallest building globally. And a new second-tallest building in the world is set to be finished this year—it’s the angular Merdeka 118 in Kuala Lumpur, Malaysia, and measures a megatall 2,233 feet tall at the tippy top. (The current second tallest building in the world is the 2,073-foot Shanghai Tower.)

But architecture is about more than height, and Stefan Al highlights an exciting diversity of design he sees in new modern buildings. “You can really speak of a new generation of skyscrapers, which are much taller, but also, you could say, more exuberant” compared to what came before, he observes. “Most of the 20th century, we only had a handful of supertall buildings, including the Chrysler Building and the Empire State Building, but now we have more than 100, and most of them have been built in the last 20 years.” 

As for buildings with wild and varied new styles, he cites the “super slender” trend in New York City, with the skinny and supertall 111 West 57th Street as a notable example. Another is the Central Park Tower, which Adrian Smith + Gordon Gill designed. 

But buildings get even more interesting. The Capital Gate Tower in Abu Dhabi may only be 540 feet tall, but it looks like it could tip over. “It deliberately leans 18 degrees,” Al points out. He says that buildings like this one “are not very logical from a structural perspective.” 

Or check out the M.C. Escher-like CCTV Headquarters in Beijing, or Mexico City’s cool Torre Reforma

So will a building ever exceed the height of the Burj Khalifa? Al thinks so, saying he anticipates it happening “within our lifetime.” 

Safarik, of the CTBUH in Chicago, is more cautious, noting that the future seems murky when it comes to a building rising higher than the Burj. But one thing is clear: When it comes to the tallest buildings in the word, things have changed since the CTBUH was founded the same year that the US landed on the moon. 

“If you were to have looked at the 100 tallest buildings in the world in 1969, you would be almost certainly looking at steel buildings that were office function, and they would be in North America, and predominantly in the United States,” Safarik says. 

Now? They are “composite buildings—some combination of both steel and concrete,” he adds. “And the buildings would largely be located in [the] Middle East and Asia, and they would have mixed functions—so that’s how the coin has really flipped over the interceding half century.”

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Power post-Memorial Day savings with $100 off a Jackery solar generator https://www.popsci.com/gear/post-memorial-day-amazon-deals/ Wed, 31 May 2023 17:55:00 +0000 https://www.popsci.com/?p=544801
Jackery Explorer 300
The Jackery Explorer 300 offers lots of power in a little, easy-to-lug package. Stan Horaczek

Plus, post-Memorial Day deals from Roomba, Samsung, and more, all on Amazon.

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Jackery Explorer 300
The Jackery Explorer 300 offers lots of power in a little, easy-to-lug package. Stan Horaczek

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Memorial Day is over, but you most likely have leftover burgers, snacks, and beers in the fridge from your celebrations. The Memorial Day deals also linger with $100 off a Jackery solar generator, among other savings.

Jackery Portable Power Station Explorer 300 $239.99 (Was $349.99)

Stan Horaczek

SEE IT

The Jackery Portable Power Station Explorer 300 is an excellent starter portable power station if you want to power smaller appliances before moving on to a larger, more powerful solar generator. It weights less than 10 pounds and can be charged with an outlet, car charger, and via solar power (although you’ll have to purchase solar panels separately). It can charge up to six devices, including laptops, drones, and cameras. It may not be able to power a refrigerator, but it can keep your WiFi running (important so no one gets bored in a power outage after all the board games are exhausted).

We’re also fans of Bluetti—another brand included in our best solar generators round-up—and the company’s EB3A, 268Wh portable power station (another excellent starter portable power station) is on sale for 40% off, down to $209 (from $349).

Like the meat in your fridge during a blackout, this deal will expire if you don’t act. Although it won’t smell as bad, you’ll still feel sorry that you didn’t act sooner and avoid the situation altogether.

Here are more post-Memorial Day deals for continued savings all week long:

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The best garden tools of 2023 https://www.popsci.com/story/reviews/best-garden-tools/ Sat, 24 Apr 2021 17:59:00 +0000 https://www.popsci.com/story/?p=283688
The Best Gardening Tools
Brandt Ranj / Popular Science

The best garden tools will make your job faster and easier so you can spend more time enjoying what you’ve grown.

The post The best garden tools of 2023 appeared first on Popular Science.

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The Best Gardening Tools
Brandt Ranj / Popular Science

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Best gardening gloves Pine Tree Tools Bamboo Gardening Gloves Pine Tree Tools Bamboo Gardening Gloves
SEE IT

This pair of gardening gloves are comfortable and will keep your hands free from small nicks and exposure to poison ivy.

Best gardening knife Fiskars Garden Hori Knife with Sheath Fiskars Garden Hori Knife with Sheath
SEE IT

This knife is perfect for pruning, cutting, and weeding. The attractive sheath makes it easy to safely store, too.

Best garden hose Aqua Joe iberJacket Non-Expanding Kink-Free Garden Hose Aqua Joe iberJacket Non-Expanding Kink-Free Garden Hose
SEE IT

A garden hose that’s easy to move around and won’t get kinked or cut is an absolute gardening essential.

With the weather turning warmer, it’s only natural to want to spend time outdoors, which means polishing off your green thumb and grabbing some garden tools. Whether planting tomatoes in a stand-up planter or squash in a raised garden bed, there’s little as satisfying as watching your efforts pay off in the form of fresh, tasty food you can pick right in time for dinner. Seasoned pros already have a shed or basement full of equipment, but if you’re new to gardening it can feel overwhelming to get started. The wrong gear can lead to frustration and wasted efforts, whereas the best gardening tools can help you to get your garden planted, weeded, watered, pruned, and harvested with ease.

Best garden hose reel: Giraffe Retractable Hose Reel

Giraffe Tools

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If you’ve ever used a vacuum with a retractable cord, you know that it’s hard to go back to winding long cords up yourself. The Giraffe is the best garden hose reel because it’s self-winding and can lock at any length you need. It’s 100 feet of ½-inch hose, wall-mountable with just four screws and anchors, and it’s a sturdy unit that retracts slowly so you won’t hurt yourself.

Best pruning shears: KOTTO Four-Pack Kit with Storage Bag

KOTTO

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When it comes to garden clippers, you’re likely going to want more than one type. For delicate work, like cutting herbs, you need something precise and narrow, whereas you’ll need something more heavy-duty with thicker branches and stems. The best pruning shears depend on your job, but versatile bypass pruning shears that make sharp, clean cuts are generally a must-have for any garden, and clippers or scissors are easier to work with when you need precision so you don’t wind up cutting things you don’t mean to cut. So the best choice is … all of the above, which you get in this convenient gardening kit.

Best wheelbarrow: Gorilla Carts Heavy-Duty Poly Yard Dump Cart

Gorilla Carts

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The best wheelbarrow for your garden is one that can easily and efficiently haul what you need it to, and this Gorilla cart fits the bill: It has a padded handle that can be pulled by hand or converted to hook up to a tractor or ATV. The difference between a traditional wheelbarrow and a dump cart is that the latter has a simple mechanism to release the tub vertically to easily dump out whatever you’re carrying—rocks, logs, dirt, what have you. This dump cart is versatile and easy to maneuver.

Best shovel: Hooyman Short Handle Digging Shovel

Hooyman

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A good shovel is essential when digging flower beds or planting vegetables, and the no-slip handle on this one from Hooyman makes all the difference. Both the handle and shaft grips are textured, which makes them easy to grab even when your hands are sweaty or you’re working in rain. The shovel’s carbon blade is serrated, which Hooyman says makes it easier to break up rocks, too.

Best gardening knife: Fiskars Garden Hori Knife with Sheath

Fiskars

SEE IT

Slicing a small branch or pruning vegetables? A gardening knife is the best tool for the job, and we like the Hori Knife from Fiskars because of its two-sided construction and built-in ruler. One side of this knife is a standard blade, while the other is serrated, which means it’s ready for both slicing and cutting. Its forked tip was specifically designed for cutting through the thin stems of small weeds. The knife’s hilt has raised edges, which give you a safe place to rest your index finger and thumb while cutting things, and the included sheath is perfect for storage.

Best hand rake: Fiskars Cultivator

Fiskars

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Some digging jobs don’t require a shovel, which is where Fiskars’ Cultivator comes in clutch. The hand rake has cast-aluminum prongs, a grippy handle, and circular hole for easy storage on a pegboard. This tool is deceptively simple, but can be used for loosening or aerating soil, and removing weeds. You could also use it to dig smaller holes for vegetable or fruit planting, or to help excavate potatoes when they’re ready to be harvested.

Best pots for seedling: DSUWAZU Peat Pots for Seedlings

DSUWAZU

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If you want to kickstart your gardening indoors before your area gets warm enough to keep plants outside, you’ll want a set of seeding pots. This 100-piece from DSUWAZU may seem excessive, but the pint-sized pots will last several years, and even come with plant labels. We like these seedling pots because they’re made of a biodegradable material, which will break down in soil over time. The pots will stay in tact before you use them, though, so picking up a big set now means you’ll be ready for several planting seasons.

Best garden hose: Aqua Joe iberJacket Non-Expanding Kink-Free Garden Hose

Aqua Joe

SEE IT

Carrying a garden hose can be cumbersome, but this one from Aqua Joe makes it a lot easier. The 50-foot hose’s outer jacket is made from marine-grade fiber that’s abrasion resistant and won’t get kinked or twisted. Additionally, the materials Aqua Joe used are free from BPA, lead, and phthalates The company says its host is roughly half the weight as a traditional one, which makes a big difference when you’re hauling it around your backyard. The thin hose can also be easily stored in a shed or garage once gardening season is over, though Aqua Joe says it can be used in temperatures as low as 0 degrees Fahrenheit.

Best rain gauge: AcuRite Magnifying Rain Gauge

AcuRite

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Water is essential to all life, but too much can end up killing your plants, which is why AcuRite’s Magnifying Rain Gauge is a gardening essential. It can measure up to five inches of rain, and the larger numbers are easy to read from a distance. A stake at the bottom of the rain gauge will keep it in the ground during inclement weather, but its holes allow you to screw it into the side of your home if you’d prefer to keep it elevated. In either case, its acrylic coating will prevent it from getting damaged.

Best potting bench: Yaheetech Outdoor Garden Potting Bench

Yaheetech

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If you have enough space, a potting bench will allow you to keep all of your most-used tools in one place, and give you a solid surface to pot your plants before they go outside. This one from Yaheetech has a 44.1-inch tabletop, and stands 49.2-inches tall. This is enough space for you to spread out your tools and work for hour-long stretches without getting a backache. We like this potting bench because it’s loaded with storage, including a top shelf, pull-out drawer, bottom shelf and side cabinet. The cabinet comes with a latch, so its contents can be kept secure. Our favorite touch is the three hooks on the right side for hanging handheld tools. Most of the potting bench is wood, but its tabletop is made out of metal, which is more durable and won’t stain when soil gets spilled on it.

Best gardening gloves: Pine Tree Tools Bamboo Gardening Gloves

Pine Tree

SEE IT

A pair of gardening gloves is the most fundamental item we’re recommending, and they should be worn at all times. This is to avoid minor cuts and scrapes, but more importantly exposure to poison ivy and ticks. This pair from Pine Tree Tools are available in multiple sizes, are easy to spot because of their green color, and are thin enough to give you complete control over all your fingers. They’re even touchscreen friendly in case you need to use your phone. A textured grip on the palm-side of the gloves will make handheld tools even easier to hold, while their cuff makes them easy on your wrist and simple to remove.

FAQs

Q: Who makes the best garden tools?

There’s no single answer to the question of who makes the best garden tools because there are different brands known best for different types of gardening tools. For instance, Fiskars is known for its shovels and spades, while Gorilla is known for the best wheelbarrows and garden carts.

Q: How do you keep garden tools in good condition?

The key to keeping garden tools in good condition is to keep them away from moisture. And the problem isn’t only rain; leaving them in the dirt, or on grass that gets damp with morning dew, will likely cause your metal tools to rust and degrade, and for wooden handles to split, crack, warp, rot, or dry out. It’s important to clean your tools off after each use (and dry them) and then store them away from the elements—in a shed, garage, or storage box. Ideally, you’ll hang any tools such as full-size shovels or rakes on a wall, as concrete floors can retain moisture. You may also want to rub wooden handles with linseed oil from time to time to keep them in good condition.

Q: Which set of tools are used in preparing a garden plot?

When you’re preparing a plot in the ground for backyard gardening, you’ll need a soil test kit to check whether your soil is ready for gardening. Then you’ll need to cut down any existing unwanted plants with a chainsaw or pruners. If you have grass growing in the area, you can kill it off by spreading newspapers over the area and putting mulch on top to hold it down. If there’s anything deeply rooted in the area, you may need to use a root-killing tool. You’ll need a good tiller once you’re ready to prep the soil—go for an electric one if you possibly can, as it’ll save you a lot of strain. You’ll also need a rake to even out the soil, and a shovel or spade for digging and planting.

Q: How much do garden tools cost?

This depends on the type of tool and whether they’re electronic or not. Most of our recommendations cost under $50 and cover a majority of everyday gardening usecases.

Final thoughts on the best garden tools

If you’re going to put the time and effort into growing your own plants, investing in the best garden tools you can afford can make your job easier and help you achieve better results. Once you have the right garden equipment for the job, you may find that your hobby becomes a better stress-buster and your harvest becomes more abundant. Happy gardening!

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

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Don’t feed ducks bread. Here’s what to give them instead. https://www.popsci.com/animals/what-to-feed-ducks/ Thu, 15 Jul 2021 01:03:00 +0000 https://www.popsci.com/?p=380041
A male and a female mallard duck in some green grass by some bushes.
They look hungry. Nikolay Tchaouchev / Unsplash

Don't give crackers to the quackers.

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A male and a female mallard duck in some green grass by some bushes.
They look hungry. Nikolay Tchaouchev / Unsplash

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Countless movies, TV shows, and even comics depict the age-old tradition of feeding bread products to ducks at the park. But don’t be fooled: this stereotype is actually an unhealthy practice that could lead to malnourishment and other health problems for these epicurean waterfowl.

But if you’re an animal lover determined to feed your local park’s residents, there are several healthy alternatives. Before you go stock up on snacks, though, always make sure you’re allowed to feed the critters in question—some areas’ rules are more lenient than others.

What to feed ducks (and other waterfowl)

The best advice we can give about feeding ducks (or other types of park fowl like swans and geese) is to imitate the types of food they naturally eat in the ponds and fields they call home. This means vegetables and nutritious grains work well, while processed “human” foods do not. Even though bread is typically made from grains, the breadmaking process renders it very filling with a relatively low amount of nutrients, two factors that can lead to malnourished ducks. Instead, try to stick with snacks that haven’t been highly processed.

For vegetables, the most important consideration is making sure that the bits and pieces you offer are small enough for waterfowl to handle. Ducks and their relatives aren’t great at chewing—while their bills help break down food, they don’t have teeth, at least in the traditional sense. Cut salad greens, vegetable peels, nuts, grapes, and other produce into small pieces before you toss them to these birds.

[Related: Why do ducks have orange feet?]

A bag of frozen mixed peas, corn niblets, and carrot pieces is one of the best options for waterfowl: these veggies are nutritious, affordable, and small enough for ducks to eat whole. Grains like oats, rice, and seeds make good waterfowl chow for the same reason. Even better, many of these little morsels will float on your local pond, keeping them easily accessible to ducks. Big chunks of food that sink to the bottom aren’t as useful.

If you’re looking to get fancy, you can also drop a couple more dollars on a bag of specially formulated waterfowl food. These pellets, available online or at your local pet store, are typically fed to pet birds and farm animals. These bite-size bits may not float on water, though, so test a few handfuls near the water’s edge before you start a feeding frenzy. This designer food may be best served up on the banks.

Other tips for feeding ducks

No matter how eager they are for a human-provided snack, your local park’s resident fowl are almost certainly not going to go hungry without you. Most ducks are perfectly capable of foraging for insects, plant life, and other nutrition sources on their own. That means you don’t need to feel bad if some of them miss out on the feast. In fact, overfeeding waterfowl can cause a host of problems, from teaching them to rely on human handouts to throwing off their natural nutritional balance. When in doubt, it’s better to stop feeding the birds sooner than you’d like than it is to feed them too much.

If you suspect a particular duck, goose, or swan may be unable to feed itself after you leave, it’s time to call in professional help. Waterfowl that live in parks are susceptible to a host of dangers from the human world, ranging from vehicle strikes to lead poisoning. Feeding them may be a temporary kindness, but it’s not a sustainable solution. If you see a bird having difficulty moving around or visibly in distress, contact your local wildlife specialists right away.

What to leave at home

If you grew up feeding bread to ducks at the park, don’t worry—it didn’t kill them. Bread is a lot like candy: it tastes good and provides some short-term energy, but it doesn’t contain many nutrients and too much of it can lead to poor health. It’s best to avoid these other food groups, too, as some are not safe to feed ducks and other waterfowl:

  • Bread products like stale donuts, crackers, and breadcrumbs—these simply aren’t healthy.
  • Any dairy products like cheese cubes or ice cream—ducks cannot digest these properly.
  • Any plants or foods from the nightshade family—this includes eggplants, peppers, potatoes, tomatoes, and some types of flowers and foliage. Parts of these plants can be highly toxic to ducks.
  • Salty or sugary snacks—stay away from all junk food and highly processed foods.
  • Citrus fruits or spinach—these foods can hinder calcium absorption in ducks and may affect the health of their eggs.
  • Any spoiled foods—mold can be poisonous and may also damage the surrounding environment.
  • Any food packaging or non-edible items—litter not only ruins the appearance of your park, but it can also harm the animals who call it home. Be sure to properly dispose of everything you bring with you to keep your feathered friends safe and happy.

This story has been updated. It was originally published on July 14, 2021.

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The best Father’s Day gifts that say, “Thanks, Dad!” https://www.popsci.com/reviews/best-fathers-day-gifts/ Wed, 09 Jun 2021 18:59:00 +0000 https://www.popsci.com/?p=370908
A lineup of the best father's day gifts on a white background
Amanda Reed

Thank your dad for all the silly jokes and drives to school with these thoughtful Father's Day gifts he'll actually use.

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A lineup of the best father's day gifts on a white background
Amanda Reed

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Best kitchen upgrade A Yummly meat thermometer on a blue and white background Yummly Smart Meat Thermometer with Wireless Bluetooth Connectivity
SEE IT

Let this Bluetooth monitor do a lot of the work while cooking at the grill.

For the aspiring drone enthusiast A DJI Mini 2 SE drone on a blue and white background DJI Mini 2 SE
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Get sky pics without breaking FAA rules.

Best watch A Citizen Star Wars watch on a blue and white background Citizen Men's Star Wars Eco-Drive with Stainless Steel Bracelet
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Encourage your dad’s nerdy tendencies (just the good ones) with this Star Wars-themed timepiece.

There are plenty of reasons to celebrate dads, or granddads, this Father’s Day: Where would the field of meteorology stand without dads looking out the window, putting their hands on their hips, and exclaiming, “Sure is coming down hard” whenever it rains or snows? Who else pours hours into creating a pristine, luxurious lawn or beefing with the neighbors over tree limbs and property lines? Without dads, society would not have an encyclopedias-worth of corny jokes and a reason to go to therapy. Truly tasteless jokes and trauma aside, here are our recommendations for gifts to make his life easier, light up his face with a smile, or both. 

How to shop for the best Father’s Day gifts

Mark your calendars: Father’s Day 2023 is Sunday, June 18. And before the big day comes, you’ll want to ensure you’ve secured a great Father’s Day present. But never fear; there’s something for everyone. You can help fuel your dad’s current interests or get him a gift that sparks a new one. Here are our picks for some of the best Father’s Day gifts:

For the outdoorsy dad: Rux Waterproof Bag

Rux

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From hitting the waves to hitting the slopes, outdoorsy dads need something that will carry all of their (for lack of a better term) crap. Other bags and backpacks crumble when stuffed with hiking shoes, an insulated water bottle, and a few beers—not the Rux Waterproof Bag. This packable, durable bag is waterproof (as the name suggests) and built to last, and comes with a lifetime warranty if it falters before that. It’s seamless, radio frequency-welded (read: made with magnets), and has 360-degree lash points that make it attachable to almost everything. It also rocks as a grocery bag—score! 

For serious power: Austere Surge Protector

AUSTERE

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If your pops is a Device Dad (he has a tablet, a laptop, a cellphone, a smartwatch, and a charger, and that’s just the beginning), they’ll need a surge protector that can handle all those plugs and power. Enter the Austere Surge Protector, which has fire and power spike safety—you never know! The flexible cable helps the surge protector fit nicely into tight spaces. It also has two USB-A and three USB-C ports for even more flexibility. Plus, it has a lifetime guarantee and a five-year component guarantee: If the power strip is responsible for any damage to a plugged-in device, Austere will replace it regardless of value. 

Best kitchen upgrade: Yummly Smart Meat Thermometer

Yummly

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Regardless of whether your dad is getting into Keto or is a strict pescatarian, a meat thermometer is a must-have kitchen device. No one wants to develop a case of food nasties from an undercooked cut of meat in their own home! The Yummly Smart Meat Thermometer requires no wires, thanks to a Bluetooth connection. Dad won’t even need to stand like a hawk over the grill or oven—the thermometer, with a coordinating app for iPhone and Android, sends notifications when it’s time to flip the food, reduce the heat, when it’s done cooking, and how long to let it rest. There are even presets to completely take the guesswork out of getting the perfect medium rare doneness—no “Dirty Work” here. 

For the coffee lover: Bruvi Bundle

Bruvi

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So your dad got a “Don’t talk to me until I’ve had my coffee” mug in Father’s Day past? Give Pops a better coffee system this year with the Bruvi Bundle. The bundle comes with a Bruvi BV-01 coffee brewer, a variety pack of biodegradable 20 B-Pods, a water filter, and a reusable Japanese Knot Bag. The optional mobile app will let Daddio brew a cup of Joe remotely, schedule brews in advance, re-order B-Pods, and access a personal consumption dashboard if they’re super specific about their morning cuppa. It can even fit a 6.5-inch travel mug—we recommend the Hydro Flask Stainless Steel Reusable Mug on that front. 

For the stressed-out dad: Onyx + Rose Feelin’ Good Gummies

Onyx + Rose

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Does your dad need something a bit stronger than CBD? Have you recently learned they were a grass enthusiast back in the day? The Onyx + Rose Feelin’ Good Gummies use HHC, an isomer (minor chemical variant) of Delta-9 THC (the illegal stuff). This provides a similar head and body high to the federally regulated stuff, all while following federal regulations. According to the 2018 Farm Bill, THCs (tetrahydrocannabinols) in hemp are legal provided they have a THC concentration less than .3%—these gummies meet those requirements. Pass if dad is subject to random drug screening. If they’re not, we’re partial to the peach flavor.  We also love CBD prerolls from aptly named company Dad Grass.

Best for beardy dads: Bevel Beard Trimmer for Men

Bevel

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An electric razor is a gift your dad will actually use every day, and this one from Bevel may actually help encourage him to dedicate a little more time to his morning routine. The razor offers pinpoint precision, so he can get the exact shave he wants, and a grippy handle that makes it easy to hold with wet hands. Its battery lasts up to eight hours, so he can use it for several weeks (or one if he’s very particular about his facial hair) without charging it. This is the type of gift your dad doesn’t know he needs, but will really appreciate.

For the WFH dad: Lillipad 42 Standing Desk

Jen McCaffrey

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Home offices can easily become a mess of monitors, coffee cups, keyboards, and tangled cords. But if the dad in your life would appreciate an organized workspace that also empowers them to get out of their office chair, the Lillipad Work Station fits the bill. This electric desk is available in two versions that rise from 6 inches to either a 42- or 48-inch standing height (recommended for people 5’9” and taller). At 67 pounds and 72 pounds each, and with metal legs, these desks are more substantial than many other options on the market but are designed with wheels for portability. 

Advanced functionality doesn’t equal advanced set-up in this case: The Lillipad comes fully assembled out of the box. Dad can plug it in, unlock the safety lock, and use the buttons on the right corner of the desk to raise and lower it to the ideal height for a chair or standing. The 46-inch-wide workspace provides plenty of room for desktops and keyboards, and you can purchase either a single monitor or dual-monitor stand separately. The workstation also features three outlets, three USB ports, and one USB-C port, so dad can plug everything in and charge their devices. And when he’s done for the day, they can easily lower it back down and use the wheels to slide it away for storage. Add a Grovemade Wool Felt Desk Pad to add some soft style to their workstation.

Best for movie-loving dads: Dangbei Mars Pro 4K Projector

Dangbei

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Movies and TV shows can look great on a TV, but nothing beats watching them on a projector, which offers a true movie theater-like experience. Dangbei’s Mars Pro 4K is among the best we’ve tested, offering exceptional visual clarity, color, and surprisingly good sound. It runs Android, which means dad can stream their favorite media without any additional accessories. That said, the Mars Pro 4K has multiple HDMI ports, making it easy to easily connect game consoles and other peripherals. It’s luxe, but Dangbei’s Mars Pro 4K will ensure they have the best home theater system on the block.

Best for dads who love vinyl: Victrola Stream Onyx Turntable

Victrola

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Does Dad go on and on about how much he wishes he could play his Steely Dan albums while explaining that Pretzel Logic is superior to Can’t Buy A Thrill? If so, let him relive his glory days with Victrola’s Stream Onyx Turntable. The sleek-looking, belt-driven deck has RCA outputs so that it can be connected to a traditional home audio system, but its luxe allure is support for wireless audio streaming to Sonos speakers. The record player even offers the option to play music through multiple sources at the same time. Best of all, the Stream Onyx is easy to assemble and operate, as we found out firsthand, and comes with an Audio Technica AT-VM95E cartridge so he can enjoy his collection immediately.

Best for dads who love pizza: Ooni Koda 12

Ooni

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If dad complains how pies and slices just aren’t how they used to be, Ooni’s Koda 12 will allow him to make them to his exact specifications. This portable pizza oven can get up to 950 degrees Fahrenheit and cook personal-sized pizzas in roughly 60 seconds. Ooni has a wide range of pizza ovens, but we like the Koda 12 because of its size and the fact that its fuel source is gas, which is easier to manage and more reliable than wood or pellets for first time pizzaiolos. Ooni’s oven can also be used to roast meat and vegetables on non-pizza nights. Just remember to get dad a pizza peel and Toque to complete the experience.

Best for dads with good taste: Terra Delyssa Organic Virgin Olive Oil Gift Set

Has your dad continued to tell food stories from his trip around the Mediterranean right out of college? If so, Terra Delyssa’s flavor-infused olive oil can help take him back to those days. The olives are all harvested from Tunisian orchards rather than mixed with ones from different regions, which can impart a different taste. We like this gift set because each oil is infused with a different strong taste—rosemary, chili pepper, lemon, and garlic—which are all good for different applications. He’ll immediately be able to taste the difference, which means you may also be signing up for even more culinary stories from his past.

Best for stylish dads: Highland Duds Weekender Short

Highland Duds

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Add a little pop of color to your dad’s wardrobe with Highland Duds’ Weekender Shorts. The ultra-comfy summer-friendly short pants are mostly made of cotton and very comfortable to wear. Their slim pockets are surprisingly roomy, too. Highland Duds offers the shorts in khaki and grey if he’s less flashy. Help him complete an outfit with the Maverick Long Sleeve Shirt, made from the same materials.

Best for dads who want to clean up their act: Tineco Pure ONE S11

Tineco

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If dad wants to take a more active role in household chores—or has been using the same vacuum since the mid-’90s—Tineco’s Pure One S11 is the upgrade he needs. The cordless stick vacuum can run up to 40 minutes per charge, and comes with various attachments for different scenarios. At 12 pounds, it’ll be easy for your dad to pick up and move around, and all of its controls are conveniently located within reach of his thumb. If dad enjoys his gadgets, he’ll enjoy the fact that the Pure One S11 can be connected to your home’s Wi-Fi connection, allowing him to see how much battery is left on the vacuum and the state of its filter through an iOS or Android app.

Best for gamer dads: Nintendo Switch OLED Model

The Nintendo Switch is the least-powerful current-generation console, but it’s still the one we recommend for Father’s Day because of its hybrid design. The Switch can be played portably, and the 7-inch OLED HD screen really makes games pop. When dad’s home, they can connect it to a TV or projector to play on a larger screen. The Switch’s extreme popularity is matched only by its deep catalog of games, which can satisfy players regardless of their preferred genre. Whether Pops is playing games as a distraction on a long work trip or taking time to clear his backlog at home, there’s no way this gift will go unappreciated.

Best for handy dads: DeWalt Atomic 20V Max Hammer Drill

Dewalt

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A drill is the type of gift a handy person will appreciate but never expect. This battery-powered model from DeWalt has a compact design but plenty of power for any indoor or outdoor housework. At only 2.5 pounds, a home improvement-minded dad can carry it around easily, and the drill’s LED will make it easy for them to see what he’s doing in dark environments. Despite its size, the drill can rotate up to 1,650 times per minute. A good drill will last a dad a lifetime, and if they’re still making do with a screwdriver—or a drill that needs to be plugged into an outlet for power—this upgrade will make him smile.

Best for dads who need an everyday carry: Gerber Gear Armbar Slim Drive

Gerber

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Power tools are great, but dad won’t be able to use them everywhere, which is why you should equip him with Gerber’s Armbar Slim. The pocket-friendly multi tool consists of a bottle opener, plain-edge blade, and a screwdriver. It even has a belt clip, so he can keep it securely fastened to the inside of his pants pocket like a boss. If your dad is the practical type, he’ll immediately see the utility of each of this tool’s functions, and keep it on him at all times. The screwdriver alone (with a reversible bit, we might add), will likely save him a couple of trips to the garage each month.

Best for dads with a green thumb: Gardyn 2.0

Gardyn

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Does dear old dad wait all year for the weather to be fair enough to grow a garden? With the Gardyn 2.0, they can enjoy growing fresh herbs and vegetables all year long. The indoor garden comes with an assortment of pods containing plant seeds. A water tank on the bottom keeps the plants hydrated, while LED strips provide them with enough light to flourish regardless of the weather conditions. The lights and water pump work automatically so that the plants will be cared for on a continuous basis without any need for much intervention. Dad will have to prune dead leaves and harvest their crops after they’re fully grown, but that’s part of the fun.

Best for dads who grill: Konnected Joe

Kamado Joe

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The Konnected Joe is the ultimate tool for grilling, an incredibly thoughtful gift for a dad who loves cooking meat and vegetables outdoors. The charcoal grill and smoker offer rich taste that a gas grill can’t replicate, with useful smart features. Its front display allows you to monitor the grill’s temperature and the temperature of up to three pieces of meat. An electric fire starter at the bottom of the grill will ignite charcoal briquettes at the push of a button, and they’ll be able to dial in the temperature between 250-700 degrees right from the grill. All of the information displayed on the Konnected Joe’s screen can also be monitored via an app (iOS and Android) on your dad’s phone, which is especially helpful if they’re smoking a large hunk of meat for several hours. The Konnected Joe manages to bring the best aspects of charcoal cooking with the conveniences of the digital world, and we guarantee they’ll be raving to friends and family about it at each cookout.

Best for dads who just want a new TV: Samsung QN77S95CAFXZA

Samsung

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Sometimes dad just wants a new TV to watch his favorite shows and movies—spoil him rotten with Samsung’s QN77S95CAFXZA, a 77-inch OLED set. This is a no-compromise cream-of-the-crop 4K TV with built-in Dolby Atmos speakers, native 120hz refresh rate, and a custom-designed Samsung processor that continually calibrates the TV to make it run as smoothly as possible. It’ll even upscale 1080P video to look crisp on a 4K TV, so his collection of Blu Rays and older TV shows will still look good. Because the QN77S95CAFXZA is an OLED TV, it offers incredible contrast and color reproduction, so videos and games will look as realistic as possible.

One quirk about this TV is that it’s actually so thin that it can basically sit flush on the wall. The set gets connected to a separate box (called the One Connect Box), which has an assortment of HDMI ports and other inputs. There’s no performance hit for this system, but something to keep in mind if you’re setting the TV up for him. Whether he wants to play video games, stream movies, or even listen to music in the background, the QN77S95CAFXZA is the best choice.

Best for dads who crave perfect sound: KEF LS50 Wireless II

KEF

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CDs promised perfect sound forever in the 1980s, but KEF made good on that lofty promise decades later with the LS50 Wireless II speakers. The pair of powered speakers sport a variety of connectors, including an AUX in, Ethernet port, coaxial input, optical audio input, and HDMI port. Those physical ports are complemented by Bluetooth and AirPlay 2 support for direct wireless streaming. KEF says that the LS50 Wireless IIs’ DAC can natively play 24-bit 384kHz audio files with no compression. Each speaker is driven by a 280 watt low frequency amplifier and 100 att high frequency amplifier. If those numbers don’t mean much to you, here’s the upshot: music can sound really, really good and very, very loud through these speakers. If your father loves music more than most people (family excluded, of course), these speakers will rock (or jazz, R&B, hip hop, classicial, reggae, and pop) his world.

Best for dads who love breakfast: Cuisinart WAF-F40 Double Flip Belgian Waffle Maker

Cuisinart

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Breakfast is considered by many to be the most important meal of the day, and Cuisinart’s WAF-F40 will turn waffles from an occasional brunch food at restaurants into an at-home staple. This model can cook two-inch-thick Belgian waffles simultaneously at one of five pre-set doneness levels. If the cook gets distracted, a loud beep will get his attention, so waffles will never get overdone. Getting two waffles onto a plate at once will allow dad (and you!) to start eating more quickly.

Best robot mower: Husqvarna Automower 415X Robotic Lawn Mower

Husqvarna

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Robotic lawnmowers seem like a perfect gift for a lazy pop. But, there are more practical reasons you might want to consider an automower as a gift this Father’s Day. Husqvarna’s surprisingly powerful little mower is great for people who have issues with mobility and can’t get out there to mow on their own. It’s also great for tricky yards as it can cut up to 40 degrees on a slope. If you’ve ever mowed on a steep hill like that, you know it’s not fun. It requires the installation of a guide wire to keep it contained within its own yard, but following setup, mowing is simple. A trio of extremely sharp blades can cut grass as short as 0.8 inches or as long as two inches if you want something more lush. Plus, an onboard object avoidance system means your dad (or grandad) won’t run over a rock and cause collateral damage.

Best for dads who tailgate: RTIC 52 Quart Ultra-Light Wheeled Hard Cooler

RTIC

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A wheeled hard cooler will help your old man get beverages to and from the parking lot, backyard, or beach without straining his arms or back. We like this cooler from RTIC because of its large capacity, thick wheels, lite weight, and overall performance. RTIC says it can retain ice for up to six days if its latches remain closed, which means he can use it for a backyard cookout on Sunday and keep drinks cold for a concert he’s attending the following Saturday. Another benefit to getting a cooler is that it’ll likely last a lifetime, so get ready for many compliments. We like the classic look of RTIC’s white cooler, but it also offers a red, white, and blue variant if he wants to stand out.

For dads who love the beach: Sunflow Beach Bundle

Sunflow

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Whether your dad actually likes the beach or only goes because the rest of the family insists he’ll have a good time out of the house, this bundle from Sunflow will sort him out. It includes the company’s beach chair, which has a flip-over top to keep him in the shade, and a beverage cooler on the side to help keep his thirst quenched. The chair’s angle can be adjusted, so he can find the most comfortable spot, and a dry bag on the right side will keep his belongings from getting sandy. When heading back to the car or beach house, a pair of straps will allow dad to carry this beach chair like a backpack for easy transport.

Best outdoor accessory: Solo Stove Mesa

Solo Stove

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We’re huge fans of the full-sized Solo Stove fire pits, but this mini version fits nicely on a patio table or by the pool. Despite its tiny size, the Mesa relies on Solo Stove’s signature airflow system to create a clean fire with almost no smoke. It starts quickly and cleans up easily, so you can fire it up and make s’mores whenever you want without having to wait for a full-sized fire to die down at the end of the night. Solo even sells miniature firewood specifically meant for use in the Mesa. It’s adorable, but not too adorable. 

Work from the backyard: Netgear Orbi 960 Black Edition

NetGear

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Give your dad a chance to brag about their router. Netgear’s Orbi 960 Mesh Wi-Fi kit can cover up to 9,000 square feet with super-fast connectivity up to 10.8Gbps. That means anyone and everyone can take meetings or stream content in the backyard, front yard, basement, or just about anywhere else he can think of. Wi-Fi 6E technology and Netgear’s quad-band design allow for an absurd number of devices to connect to your local network without bogging everything down. The Black Edition is only available directly through Netgear’s own online shop, which also gets you a free year of the Netgear Armor security tech. It’s advanced enough to do anything a dad needs and reliable enough that you won’t have to play tech support whenever you go to their house.

For the aspiring drone enthusiasts: DJI Mini 2 SE

DJI

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Getting started with drones can be tricky. Not only are they hard to fly, but most drones require registering with the FAA before taking to the skies. The DJI Mini 2 SE is different. It weighs just 249 grams, which fits conveniently under the FAA’s 250-gram limit for registration. Despite its being lightweight and a small size, the Mini 2 SE captures 2.7K video and employs an object avoidance system to keep it away from power lines or other hazardous obstacles.

Best watch: Citizen Men’s Star Wars Eco-Drive with Stainless Steel Bracelet

Citizen

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Your dad’s a nerd, and that’s OK. In fact, we recommend you encourage their nerdy tendencies as much as possible. This Citizen watch is a full-on Eco-Drive model, so it doesn’t require winding. It draws enough energy from light in its environment to keep on ticking. The handsome stainless steel bracelet makes it totally appropriate for work or classy events. But, your pop can always look down and think about Star Wars while they’re wearing it. Find a more versatile piece of nerd merch than that. We dare you. 

To help your dad’s short game: Callaway Golf Chrome Soft Golf Balls

Callaway

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Golf balls make a great gift because it’s hard to splurge on something you might whack way into the woods or chunk straight into a water hazard. Callaway’s Chrome Soft golf balls are versions of the balls pros play on tour—they won’t have to be a pro to play them. These balls promise a high launch angle, low spin off the driver, and high ball speed off the club face. In case you’re not big on golf ball specifics, those are all very helpful things for improving overall scores. The Triple Track design sports three parallel lines on the ball to help Pops lineup shots just right. Dad will think of you and your great gift as they reach into their bag and grab another ball after slicing one across the highway next to the first fairway. 

Final thoughts on the best Father’s Day gifts

You don’t need to sweat over finding a cool gift for your dad this year. If you get him a Father’s Day gift that he’ll be able to use long-term—or, even better, something he can use with the whole family—it’ll be something he treasures. Consider it a success if you find fun presents that complement one of his hobbies or unique gifts that spark interest in a new pastime. And using this gift guide should help narrow down the best options for cool gifts for any and every dad.

The post The best Father’s Day gifts that say, “Thanks, Dad!” appeared first on Popular Science.

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Garmin’s newest smartwatches are even more adventure-ready https://www.popsci.com/gear/garmin-epix-pro-fenix-7-pro-news/ Wed, 31 May 2023 16:55:00 +0000 https://www.popsci.com/?p=544842
Garmin fēnix 7 Pro on a wrist with the flashlight illuminated
Garmin

The new epix Pro and fēnix 7 Pro high-performance GPS adventure watches offer more advanced features for serious endurance athletes and outdoor enthusiasts.

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Garmin fēnix 7 Pro on a wrist with the flashlight illuminated
Garmin

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Garmin is well known for its expansive list of rugged fitness watches, with multiple lines specifically tailored to different activity types. And now, the options for adventurers and serious endurance athletes are even more extensive with the announcement of updated Pro versions of the epix and fēnix 7 watches. 

Most of the updates to these premium next-gen. multisport watches are incremental software changes, such as more activity types and new fitness measurement tools. But there are also a few notable hardware and build upgrades, including a new size option and AMOLED display for the epix Pro and an LED flashlight in all three sizes of both the epix Pro and fēnix 7 Pro. Both watches will also benefit from trickle-down features from the new Forerunners.

Garmin epix Pro details

Garmin just debuted its epix 2 line of watches last year. Despite how new the series is, the company is rolling out some worthwhile updates to make it even better in a new Pro version. With vibrant metrics-rich watch faces and extensive sensors/navigation features in a sleek body, the epix Pro remains a great choice for boardroom-to-backcountry adventures and weekend warriors, from climbers and mountaineers to ultra-marathon trail runners. 

Garmin

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epix Pro and build changes

The epix came in two sizes—42mm and 47mm—while the Pro version adds a 52mm option for those who really want a statement piece on their wrist. The larger size offers more than just a dramatic look, however. Garmin packed extra battery into the 52mm version, which promises up to 31 days of battery life in smartwatch mode. The 42mm and 47mm both should provide 10 and 16 days of battery life, respectively. 

Like the epix Gen. 2, the Garmin epix Pro will be available in Standard Edition, which features Corning Gorilla Glass and stainless steel case, or the Sapphire Edition, which uses a more durable Sapphire lens and titanium case. And all three sizes get an even brighter upgraded AMOLED display for a colorful, detail-packed watch face. 

All three sizes will offer an LED flashlight, which can vary in intensity and features a strobe mode. We were glad to see the flashlight included even on the smallest watch since it is a potentially game-changing feature. It can illuminate your path while trail running or hiking in the dark and help others see you, which is invaluable if exercising near a road. 

The epix Pro also gets an updated and optimized heart rate sensor. Garmin didn’t provide any information on what exactly that means, but it says these changes will provide “enhanced multisport performance tracking.”

Fitness tracking features

Garmin watches are already robust in their fitness tracking abilities, but the company is not one to just let things be. The epix Pro will offer new activities, which include team sports such as soccer, basketball, and racquet sports, as well as horseback riding and more.

Beyond new tracking modes, Garmin also created new training features. Hill Score gives you a better idea of how your training impacts your ability to run uphill. Uphill segments are automatically detected and analyzed, and that information is combined with other physiological metrics to provide a score from one to 100. It even breaks the score down into Hill Endurance and Hill Strength, which reflect short, fast efforts versus long, sustained climbs. And it offers feedback to improve your training over time. 

The second new feature—Endurance score—looks beyond your VO2 Max, giving a more personalized look at your fitness. It analyzes both short-term and long-term endurance training and takes into account all types of activity, not just running or cycling. And, like Hill Score, it provides training feedback to help you understand your score.

Three new display types on the Garmin epix Pro smartwatch
The epix Pro will offer new terrain maps, a Red Shift Mode for night use, and weather overlays. Garmin

Additional new features

The Garmin epix Pro will provide a unique Red Shift Mode, which changes the display to shares of red. This lessens the impact on your vision when looking at your watch in the dark and reduces any sleep cycle disturbance you might get from the standard display. You can manually turn on this display mode or schedule it to automatically turn on and off based on sunset and sunrise time. And you can even select certain activities that automatically use Red Shift Mode.

Up Ahead mode will allow you to view running points of interest, such as checkpoints and aid stations, right on the map. This allows you to better understand what’s in front of you and plan accordingly on your race or activity. 

The last feature those navigating the backcountry will especially appreciate is the new weather map overlays and relief shading on topographic maps. The weather overlays can display temperature, precipitation, and cloud cover, to help you make more informed decisions on the go. And relief shading will assist in navigation. You can also opt into Outdoor Maps+ for even more map content, including satellite imagery and more detailed maps.  

Garmin epix Pro pricing & availability

The epix Pro is available for purchase as of today, starting at $899.99.

Garmin

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Garmin fēnix 7 Pro details

Like the epix Pro, most changes to the fēnix 7 Pro are smaller software additions. The fēnix 7 Pro still comes in 42mm, 47mm, or 51mm sizes, though you no longer have the option of a version without solar charging. You can, however, choose between Standard Solar or Sapphire Solar, depending on how robust you want your watch face. 

Like many of Garmin’s new watches lately, including the Instinct 2X, the fēnix 7 Pro will feature an LED flashlight in all sizes. It offers a broad pattern, variable intensities, red safety light, and strobe mode. 

New training features

The fēnix 7 Pro also gets a new heart rate sensor. Garmin says this next-gen sensor utilizes “more spatially diverse optical sensors and sport-specific algorithms.” It should provide even better performance tracking for more activities, giving you even more accurate insight into your training. 

Like the epix Pro, the fēnix 7 Pro will also get the new Endurance Score and Hill Score for better endurance training insight. It also gets its share of new activities, including white water rafting, motocross, overlanding, and dozens more. And the watch will provide access to the weather map overlays, new relief shading, and Up Ahead mode.

Garmin fēnix 7 Pro pricing and availability

All versions of the fēnix 7 Pro are available for purchase at a starting price of $799.99.

The post Garmin’s newest smartwatches are even more adventure-ready appeared first on Popular Science.

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The best portable desks of 2023 https://www.popsci.com/story/reviews/best-portable-desk/ Tue, 23 Feb 2021 15:59:00 +0000 https://stg.popsci.com/uncategorized/best-portable-desk/
Best portable desks sliced header
Tony Ware

Get maximum mobility with a desk that comes with you.

The post The best portable desks of 2023 appeared first on Popular Science.

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Tony Ware

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Best overall Vivo Standing Desk Vivo Standing Desk
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A great portable option that is strong enough to support up to 33 pounds.

Most adjustable The Lillipad Work Station is one of the best ergonomic desks. Lillipad Work Station
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This heavy-duty work station comes with an electric motor that lets you adjust it from 6 inches to 42 inches of height right out of the box.

Best budget LapGear Essential Lap Desk LapGear Essential Lap Desk
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This lightweight lap desk will keep your computer and your legs from overheating.

The verdict is in on sitting all day: It’s not good for you—but a portable desk can help. Having to stay seated in one location all day wrecks your back and overall health. Getting up on your feet and gaining the ability to move around will make you healthier and create a happier, more flexible work environment. Whether working from home, in an office, or on the go, a portable desk allows you to set up shop anywhere. Every space will have demands, so here’s how to find the best portable desk for your setup.

How we chose the best portable desks

We work, and we work till we know what works. As a remote-first office, we’ve tried many portable desks around our own homes and asked coworkers and peers for recommendations. We scrolled through specs and critical perspectives and combined that research with real-world user impressions to find the best portable desks we could stand (or sit) behind.

Best portable desks: Reviews & Recommendations

When we’re stuck in one place, work—or life, for that matter—can become repetitive, hurting our productivity. Neither sitting nor standing for hours throughout the day isn’t great for your overall health, so how about having the ability to move where you work? Feel healthier and more comfortable while you work with a portable computer desk. Also, a change of scenery can help stimulate creativity beyond the health benefits.

Best overall: Vivo Standing Desk

Vivo

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Why it made the cut: This space-efficient desk riser allows on-demand standing without needing an outlet or expanding your workstation.

Specs

  • Material: Wood, metal
  • Dimensions: 31.5″D x 31.5″W x 31.3″H
  • Weight: 22 pounds

Pros

  • Room for laptop and monitor
  • Wide keyboard tray
  • Lift-assist mechanism
  • Minimal assembly

Cons

  • Hydraulics can be sticky/inconsistent

This adjustable standing desk is a great portable option that is strong enough to support up to 33 pounds. The double-tier workstation also means it’s great for people who use a mouse, keyboard, second monitor, or need some extra space for papers. If you want one surface, the keyboard tray is removable. The Lift Assist mechanism allows you to rotate from sitting and standing mode—4.5-20 inches—easily throughout the day. It’s available in seven colors and five widths, from 26 to 42 inches.

Most adjustable: Lillipad Work Station

Jen McCaffery

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Why it made the cut: This substantial work station can support two monitors, plus a comprehensive work station. It comes ready to go out of the box, easily lifts to standing, and is designed with wheels for portability.

Specs

  • Material: Steel and composite
  • Dimensions: 42 x 46.25 x 24 inches
  • Weight: 67 pounds

Pros

  • Comes fully assembled
  • Provides generous workspace
  • Designed with integrated power strip
  • Portable

Cons

  • Heavy 
  • Expensive

If you’re looking for a substantial portable desk that’s will provide maximum adjustability, consider the Lillipad Work Station. This electric desk is available in two versions that rise to either 42 inches or 48 inches (recommended for people 5’9” and taller) that allow users to stand. At 67 pounds and 72 pounds each and with metal legs, these portable desk with wheels can also support a full work station.

A key feature is that the Lillipad comes fully assembled. When the UPS man delivered the box to my apartment, he struggled to get it up the steps. But once I got it out of the box, it was easy to start using the Lillipad 42. I used to wheels to move it in place, plugged it in, unlocked the safety lock, and used the buttons in the righthand corner of the desk to raise and lower it. The 46-inch wide workspace provided more than enough room for my equipment, and if you have a single monitor or two monitors, you can purchase stands for either separately from Lillipad. 

The work station also features an integrated power system with three outlets, three USB ports, and one USB-C port, so you can plug everything in and charge your devices. When I was done working, it was easy to lower the desk to its lowest height of 6 inches for storage. That said, while this work station is designed with portability in mind, it’s worth noting that at about 70 pounds, you’ll need to lift them carefully and it’s not going to be easy to just toss one into the back of your car.

Best lap desk: Cooper Mega Table for Bed & Sofa

Cooper

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Why it made the cut: If you need space for a laptop and open book, whether you might need to work or study, the Cooper mega table is for you.

Specs

  • Materials: MDF wood, aluminum alloy, polycarbonate, silicon
  • Dimensions: 19.3″D x 25.6″W x 10.6″H
  • Weight: 26.6 pounds

Pros

  • Extra-large surface area
  • Perfect for the floor, couch, or counter
  • Foldable legs for storage
  • Ergonomic edges and carrying handle

Cons

  • May be tall for children/those with short torsos

The smart design of this folding lap desk means it takes up very little space and allows you to lay out all you need for the day. The large surface area and 11-inch leg height allow you to lie in bed without needing to place the desk on your legs. Beyond that, a handy side drawer gives additional space for your pens, pencils, and notebooks, making this option an ideal portable writing desk. This portable laptop desk can be propped up on a countertop, and you have a standing desk as well. A groove in the back lets you set up your phone or tablet.

Best rolling desk: Sdadi Standing Desk

Sdadi

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Why it made the cut: Easily assembled and moved around, this wheeled adjustable desk fits whether you stand or sit.

Specs

  • Materials: Engineered wood and alloy steel
  • Dimensions: 23.6″D x 45.3″W x 23.6″H
  • Weight: 26 pounds

Pros

  • Standing and seated modes
  • 2-inch ABS mute wheels with locking function for maneuverability
  • Easy to install, can be finished in 15-20 minutes by one person with attached tools

Cons

  • Instructions need work
  • Tilting isn’t perfectly balanced

Made of steel and wood, this ergonomic portable desk allows you to stand or sit with the ability to move your desk anywhere you please. The height can be adjusted between 27.5 to 45.3 inches. The portable adjustable desk’s durable, lockable 2-inch wheels make it super easy to move on carpet, wood, or floor materials. This option is easy to install, and there are four styles available, so you’ll be able to find a portable rolling desk that fits your aesthetic.

Best foldable desk: Need Foldable Writing Desk

Need

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Why it made the cut: With no assembly required, this foldable writing table is sturdy and perfect for a home office/dormitory.

Specs

  • Materials: Engineered wood and alloy steel
  • Dimensions: 15.75″D x 31.5″W x 29.25″H
  • Weight: 17.9 pounds

Pros

  • 4.5 inches, convenient for storing
  • High-strength, thick powder-coated steel tubing
  • Scratch-resistant surface
  • Adjustable leg pads

Cons

  • Legs sometimes uneven/wobble

A stylish wood finish gives this folding desk a great look. This collapsible portable desk is lightweight but made of quality steel components, so you’ll be folding it away for years to come. An ideal option for those with heavier desktop computers or additional weight on their desks, it can support up to 220 pounds. Conveniently adjustable leg pads allow it to be propped to the right height.

Best compact desk: Rainbean Portable Workstation

Rainbean

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Why it made the cut: With multiple configurations, this table lets you work comfortably whether sitting, standing, or lying on your back.

Specs

  • Materials: Aluminum
  • Dimensions: 16.54″W x 10.24″D x 1.97″H
  • Weight: 3.3 pounds

Pros

  • Adjustable
  • Ergonomic
  • Ventilation holes for laptop heat dissipation

Cons

  • Not padded
  • Poor instructions booklet

We love how small this portable workstation is. It boils your desk down into the essentials and can fit a mouse and laptop easily. This compact desk gives you full control and flexibility to work in the most comfortable position possible. This may be too little if you need to sprawl out notes across your desk. However, if you’re short on space, this is the smart portable desk for you.

Best full-sized premium desk: Hoek Home Office Desk

Hoek

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Why it made the cut: Fabricated-to-order and hand-finished before being flat-packed, this quality carpentry is a modular, minimalist workstation that’s up and running within seconds of arrival.

Specs

  • Materials: Birch or walnut plywood, recycled plastic
  • Dimensions: 47.5″L x 23″W x 30″H
  • Weight: 42 pounds

Pros

  • Quick assembly
  • Can be hung from the included mountable wall cleat
  • Sustainably sourced materials
  • Lifetime warranty

Cons

  • Expensive
  • Hanging requires drilling in a wall mount

If you’re looking for more surface area for work but have limited working space, Brooklyn, NY-based Hoek designs, machines, and hand-finishes quick-assembly furnishings that arrive flat-packed and can hang flat on a wall (mountable wall cleat included). Ultra-slim but extremely sturdy, the 42-pound fabricated-to-order tabletop (sustainably sourced maple or natural birch plywood, with a black colorway option) sits atop modular 100% recycled HDPE plastic legs that click in or out in seconds (no tools required) and store on the chassis’ underbelly when not in use. Measuring 47.5 inches long by 23 inches wide by 30 inches high, with an integrated handle, the Home Office Desk offers a stylish, easily moveable workstation. And suppose later you want it further kitted out. In that case, you can purchase a perfectly paired CNC-meets-carpentry creation, including a monitor shelf, keyboard under-shelf, and/or a headphones/bag hook (or buy it all upfront as a discounted bundle). That would allow you to also use this as a portable gaming desk. At $495 ($795 for the bundle), the Hoek Home Office Desk costs far more than the other options in this roundup. Still, you’re buying creative, quality craftsmanship with a lifetime warranty that makes your workspace look appealing, not just practical.

Best budget: LapGear Essential Lap Desk

Lapgear

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Why it made the cut: An inexpensive way to keep your lap, and laptop, properly ventilated while working wherever you feel like sitting.

Specs

  • Materials: Plastic, fabric
  • Dimensions: 10″D x 13.7″W x 2″H
  • Weight: .66 pounds

Pros

  • Cheap and compact
  • Easily carried and stored
  • Good for children and adults

Cons

  • Cheap

This lightweight lap desk will keep your computer and your legs from overheating. This portable travel desk is available in six colors, from basic black to bright turquoise, which is a nice plus when setting up portable desks for the whole family. It fits up a laptop up to 13.3 inches, so make sure you’re buying a surface that works for your computer. If you’re working with a larger device, LapGear has a pro model that includes some luxury features like a built-in mouse pad and wrist rest.

What to consider when buying the best portable desk

Creating a workspace anywhere is super helpful today, where it’s not uncommon to be working from home. The problem is, we don’t all have extra space to turn a room into a properly kitted-out office. What to do? Using a portable desk, you can create a workspace anywhere and get back to what you need to do. Bedrooms, sofas, and yards are all fair game when setting up a portable desk.

For those looking for the ease of working from bed, a lap desk can easily be set up after you’ve hit snooze a few too many times and transport you into your next conference call. If you have minimal space, you may want a standing desk extension that can be put onto a countertop.

Location

It’s great to work from an extremely comfortable location like your bed. Work guilt-free by setting up a fully functioning laptop desk for your bed. Working on a bed or sofa can also ease the strain of sitting at a desk all day. You’ll be able to prop up a notebook, lay out your laptop, scatter some snacks, and do most things you would on any other kind of desk. It’s also ideal for days off—who wants to crane their neck to watch a movie or YouTube video when the laptop could just be propped up closer to eye level?

Portability

One of the biggest benefits of a portable desk is that it allows you to set up an office in various rooms. Do you need to be seated at your desk one moment and then rearrange the space to make room for a photo shoot later in the day? Look to a portable desk on wheels for those who want to switch their workspace daily. You won’t have to lift it, so it’ll be friendlier on your back and let you transfer your gear from room to room without removing it from the desk’s surface.

Storage

If you’re setting up a home office, the last thing you want to do is turn valuable home space into a room that will only be used when you’re on the clock. A foldable desk is one of the best portable desks that allows you to create a multi-functional room in seconds.

With foldable legs, you can slide your desk conveniently under a bed or sofa to maximize space. Think about your options when turning your daytime office into a game room, study, or guest room.

Your space

You’ll want to create a portable workstation within the room’s framework for the most compact spaces. A desk that clips onto an existing table can add extra functionality to a space, and easily move with you from room to room. Make sure to look for ventilation holes to allow airflow within your laptop (and keep your legs from overheating if you choose a lap desk).

Price

If the price is a factor, you can still get the best portable desk without sacrificing quality. For most jobs, you need a surface for your laptop. If that sounds like your job, a basic lap desk is a great option that will allow you to use your computer or take some notes while sitting on a seat, sofa, or bed.

FAQs

Q: How much does a portable desk cost?

Our selections range from $12 to more than $1,100, depending on the size and quality you’re searching for.

Q: How do I choose a portable desk?

To pick the best portable desk for you, it’s best to define how you’d like to use it. Decide if you want to be standing or sitting, lying in bed, or sitting on the floor. Once you know this, you can find the desk that will work in your space.

Q: How big should a portable laptop desk be?

The size of a portable laptop desks depends on what you plan to include in your workspace. A heavy-duty portable desk like the Lillipad Work Station can support two monitors, plus a desktop, keyboard, and other equipment and weight 67 or 72 pounds, depending on which model you choose. The LapGear Essential Lap Desk, meanwhile, weighs less than a pound and is great for working on the go, on the couch, or in bed.

Q: What makes these desks portable?

Most are lightweight, making them easy to move from room to room. That said, an option like the Lillipad Work Station is more substantial at 67 pounds, but is designed with wheels for transport and storage.

Q: Can I put my computer on a portable desk?

You definitely can put a computer on a portable desk. That said, some of the portable desks designed for laps won’t work well with desktop computers, as they will likely be too heavy. All portable desks can hold laptops, notebooks, iPads, and more.

The final word on shopping for the best portable desks

Gain the freedom to set up your workspace anywhere by getting the best portable desk. Consider a lap desk with vented airflow if you prefer to sit, or a standing option with wheels for easy mobility. Turn any room or outdoor space into an office that allows you to get your work done efficiently and effectively.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

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Twitter turns to Community Notes to factcheck images https://www.popsci.com/technology/twitter-community-notes-misinfo/ Wed, 31 May 2023 16:00:00 +0000 https://www.popsci.com/?p=544750
Twitter Community Notes flagging screenshots
Twitter's expanded crowdsourcing approach to handling misinformation comes after an uptick in altered media. Twitter

The social media platform has recently faced a deluge of hoax and AI-generated material.

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Twitter Community Notes flagging screenshots
Twitter's expanded crowdsourcing approach to handling misinformation comes after an uptick in altered media. Twitter

Following a troubling proliferation of AI-generated and manipulated media, Twitter announced on Tuesday its plans to expand its Community Notes system to flag altered and fake images. First launched late last year shortly after Elon Musk’s $44 billion acquisition of Twitter, Community Notes built upon the company’s previous Birdwatch program aimed at leveraging unpaid, crowdsourced fact checking of tweets to rein in misinformation and hoaxes.

[Related: Why an AI image of Pope Francis in a fly jacket stirred up the internet.]

The expansion is currently in an “experimental” testing phase, and only pertains to posts containing a single image. Twitter states it plans to extend the feature to handle tweets featuring additional media uploads such as GIFs, videos, and multiple images in the near future. As of right now, however, only those signed up as a Community Notes contributor with a user rated Writing Impact score of 10 can see the option to flag a post for its accompanying media instead of just its text. According to Twitter’s Community Notes page, “Tagging notes as ‘about the image’ makes them visible on all Tweets that our system identifies as containing the same image,” meaning that other users’ tweets containing the same image alongside different text will hypothetically contain the same flag.

Twitter’s Community Notes team warned that the new feature’s accuracy could still produce both false positives and negatives for other tweets.  “It’s currently intended to err on the side of precision when matching images,” they explained, “which means it likely won’t match every image that looks like a match to you.” Twitter added that its team will continue to “tune this to expand coverage” while also cutting down on “erroneous matches.”

The new feature arrives just days after a fake image depicting an explosion at the Pentagon began circulating on Twitter, first via an account claiming association with Bloomberg News. The now-suspended account included a “Blue Checkmark” that for years reflected an account’s verified authenticity. Following Musk’s company takeover, a verification can now be obtained via subscribing to the premium Twitter Blue user tier.

[Related: Twitter’s ‘Blue Check’ drama is a verified mess.]

Twitter has relied extensively on crowdsourced moderation via the Community Notes system after axing the majority of its staff dedicated to trust and safety issues. On Wednesday, The Wall Street Journal reported the social media platform is now worth approximately one-third of the $44 billion Musk paid for it.

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How to improve your handwriting https://www.popsci.com/diy/how-to-improve-handwriting/ Sat, 13 Aug 2022 15:00:00 +0000 https://www.popsci.com/?p=462376
Hand writing on notebook
Is that an A or a G?. Hannah Olinger / Unsplash

Practice will help you write pretty again.

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Hand writing on notebook
Is that an A or a G?. Hannah Olinger / Unsplash

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With most of today’s written communication typed out on clackity keys or tapped out on a smudgy screen, you may not see much of a reason to improve your handwriting. But from time to time, you still need to fill out ye olde paper form, which is exactly the moment you realize your script looks, well, not great. 

It’s never too late to get better handwriting. We don’t mean calligraphy level, which would make your doctor’s office check-in forms look like royal decrees from the 1500s. We mean legible and consistent, regardless of whether you use print or cursive. 

Just like most aspects of life, you can improve your handwriting with practice. Repetition will help you gradually change your style, and you’ll eventually reach a point where letters flow naturally and beautifully from pen to paper. We can’t promise the words will make sense, but at least they’ll look pretty. 

1. Find a space and comfort

If you’ve ever struggled to sign a paper or write a note with no table or clipboard in sight, you know that comfort is of the essence when you want to jot down legible words. Start by giving yourself a fighting chance and sit down at a stable, spacious table or desk where you can write at your leisure. 

[Related: Eight great pens to match your writing style]

Keep lamps, mugs, and any decorations far from you: You want to be able to move freely without fear of knocking something down. 

2. Keep things flat

When it comes to the actual paper, it’s a good idea to keep things as flat as possible, so a loose sheet is better than a notebook. But if you hate the hassle of having random pieces of paper all over the place, the right notebook will work too. 

Avoid thick or spiral notebooks and instead opt for one with a flexible binding that you can open flat. This will prevent the heavier side of your book from trying to pull the whole thing closed, and eliminate any wrist discomfort a thick spiral may create as you approach the end of each line. Thinner notebooks will also keep your hand from losing support as you write the final lines on a page. 

3. Make the paper adapt to you

Speaking of lines, you should use some kind of guideline at this stage—it could be lines, a grid, or dots, whatever your handwriting-focused heart desires. This will help you gauge the direction of your script and the size and consistency of your letters, so we strongly recommend forgoing blank pages until you’re more comfortable with your new and improved penmanship. If you’re using loose paper instead of a notebook, you can buy lined, gridded, or dotted paper—or you can download and print your own from one of several free online resources

Next, find a paper layout angle that suits your writing. Don’t fall for the notion that the only correct setup is vertical, as that can force your hand and wrist to adopt an unnatural writing position, which could lead to pain and even injury. There’s absolutely no shame in positioning your sheet of paper or notebook at a 45-degree angle or even a totally horizontal alignment. The best way to find out what angle works for you is to start with your paper laid vertically and then rotate it to the left (if you’re right-handed) or the right (if you’re left-handed) until you’re comfortable. This is why having a spacious surface to write on matters, as you won’t want to knock down any desk trinkets while you play around with your paper. 

Take as much time as you need to ensure your setup is to your liking. You’ll find this will not only help you improve your handwriting but it will also be relaxing. You’re welcome. 

4. Find the right tool 

Now, to the fun part: get a pen you like. If you’re a leftie, stay away from broad-nibbed fountain pens that might dispense a lot of ink with each stroke—you’ll likely end up with smudged words all over your page as your hand crosses your freshly printed letters. Gel pens and ballpoint pens are usually quick-drying, so starting there is a good idea. Righties don’t have to think about anything—the world is built for you. 

The best way to know if a pen is right for you is to try it. If you can, go to a stationery store and take your time sampling the pens there—write a couple words on the provided pads and see how each pen feels. Maybe buy two or three to keep testing at home. If you have no idea where to start, you can always give some fan favorites a test drive. 

Many people swear by the Pilot G-2, for example. It comes in several formats, but the tried-and-tested version has a built-in grip, is retractable, uses quick-drying gel ink, and comes in myriad colors. If you want to go with a classic, try BIC’s Cristal or Round Stic pens. You’ve probably written with these a million times before, and they’re a staple because of how comfortable and reliable they are. Some more ideas: Uniball’s Signo, Pentel’s RSVP, Sakura’s Pigma Micron, or any gel pen at Muji. These are all inexpensive writing tools with their own fan bases, so you should be able to find something that works among them. 

If you want to try your hand at fountain pens, start with something designed for beginners that—hopefully—is compatible with disposable ink cartridges, or even comes pre-loaded with ink. This will prevent you from having to buy a bottle of ink and a refillable cartridge, unless you’d really like to. Pilot’s Kakuno or Schneider’s Ray fountain pens are solid, inexpensive choices—they’re light and comfortable, and can prepare you to move on to more serious fountain pens in the future. 

5. Calibrate your pace and grip

You’ve got your tools and your setup—it’s time to write. Start by filling between a half and a whole page with fresh handwriting. It can be anything: a story, your train of thought, or the transcription of a song you like. 

When you write, do it at a normal pace (not too fast, not too slow) and mind your hold on the pen. If your nails are white from the force you’re exerting, your grip is too strong—relax your hand and try again. This is important because an excessively strong grip will lead to pain and discomfort, which can result in hand and wrist cramping, as well as injury. On top of that, pain will also affect the consistency of your handwriting and eventually deter you from putting pen to paper at all, rendering this whole process useless. 

Once you have a comfortable grip, check it every few minutes and correct it if you need to. If you’re having trouble controlling your pen, you can always change your tool or try a pen grip—one of those small rubber tubes that slip right onto your pen or pencil for better control. 

6. Analyze your writing

When you’re done writing your practice page, take a look at your handwriting and analyze it. Pay attention to spacing, the slant of your letters, their height, their form, and where they are in relation to the guidelines you used. The most important element you’re looking for is consistency and legibility, so go through your lines and highlight which words and letters differ most from the rest, and which could be misread. 

These are the elements you’ll need to focus on to improve your handwriting. No matter if you do cursive, print, or a combination of the two, you want a style that anybody can read clearly, is mostly the same across the page, and has letters that look more or less consistent. This doesn’t mean your handwriting should be perfect or resemble words on a screen (let alone calligraphy)—your handwriting is unique to you and you should embrace it as such. 

If there are aesthetic elements you want to change, or if you want to alter the way you write altogether, draw inspiration from others. A quick web search will turn up thousands of handwriting enthusiasts sharing their own pristine note pages. Take a look at them, find what you like (loose elements or entire styles), mimic it, and make it yours. 

7. Practice, practice, practice

You knew it would come to this. Repetition is key to learning, and only writing, writing, and more writing will get your body used to the changes you want to make to your personal script. 

A helpful way to practice is by making your exercises a part of your everyday life. You can do this by taking up a hobby like journaling or meditative writing. This will give you the opportunity to sit down for a couple of minutes each day and put your growing skills to good use. 

If you’re not into journaling, you can just set aside some time to practice every day. Find books, poems, and songs you like, and transcribe them. You can also write down your own train of thought if you can keep up with it. Your writing doesn’t have to be good, or even make sense—the point is to write, and as long as you’re putting words together, you’re getting some practice. 

On top of that, take every opportunity you have to write instead of typing. Keep notepads and pens around your desk and home, and pick them up to write reminders, and lists. If time is not an issue, forgo emails and opt for writing a letter or sending a postcard instead. It’s not only extra practice, but it’s a nice, old-fashioned thing to do and people love it.

A reminder: take your time and be patient. Speed will come once your hand learns the movements you’re teaching it. The more you write, the faster and more organically your lines will come. In the meantime, focus on form and consistency. From time to time, take a moment to analyze your handwriting to see how much you’ve progressed and what you still need to improve. Don’t forget about your grip, either, and check on it often to see if you need to loosen up. 

8. Get some help

If you’re having trouble analyzing your own handwriting or what exactly you need to change, there are people who will do that for you. There are many courses (online and otherwise) that can teach you how to improve your handwriting and where to start. 

[Related: Turn your handwritten documents into searchable digital notes]

For the more independent learners, there’s also a lot of practicing material online, like worksheets and guides, that you can download at a cost or even for free. Some of them have slanted lines that can help you keep your angles consistent, and some of them have full instructions on the best ways to join letters and use spacing. 

It bears repeating: handwriting is not calligraphy, and it’s as unique to you as your fingerprints. It doesn’t have to be perfect, and it doesn’t have to look like someone else’s, so make embracing the chaos part of your process. 

Also, you should enjoy this—keep it fun and relaxing. If at any point it’s not, you can change it. Or you can try to find pleasure in filling out terribly formatted forms on your phone. Whatever works for you.

This post has been updated. It was originally published on August 13, 2022.

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A lost ‘bawdy bard’ act reveals roots of naughty British comedy https://www.popsci.com/science/bawdy-bard-british-medieval-comedy/ Wed, 31 May 2023 15:00:00 +0000 https://www.popsci.com/?p=544681
A microphone on a dark stage.
The roots of English comedy run deep in a newly discovered naughty narrative from the 1480s. Deposit Photos

The 15th century manuscript features a killer rabbit centuries before ‘Monty Python.'

The post A lost ‘bawdy bard’ act reveals roots of naughty British comedy appeared first on Popular Science.

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A microphone on a dark stage.
The roots of English comedy run deep in a newly discovered naughty narrative from the 1480s. Deposit Photos

Libraries are full of unique and missing oddities from long lost letters to famous forgeries. A newly discovered record of live comedy performance in medieval England is yet another example of how deep the roots of British theater run. In a study published May 30 in The Review of English Studies, researchers describe a 15th century manuscript with slapstick, lively text mocking everyone from kings and priests down to lower classes. If that’s not enough, the naughty narrative encourages drunkenness and features a killer rabbit.

[Related: Codebreakers have finally deciphered the lost letters of Mary, Queen of Scots.]

These new texts also contain the earliest recorded use of a ‘red herring’ in the English language, which is a misleading statement, question, or argument that is meant to redirect the conversation or text conversation away from its original subject. Additionally, it fills in some knowledge gaps regarding comic culture in England between Geoffrey Chaucer and the Renaissance’s William Shakespeare.

A page of the Heege Manuscript. The 'Red herring' appears 3 and 4 lines from the bottom of the page
A page of the Heege Manuscript. The red herring appears 3 and 4 lines from the bottom of the page. CREDIT: National Library of Scotland.

In the Middle Ages, minstrels often traveled from taverns and fairs to entertain people. Fictional minstrels such as Robin Hood’s Allan-a-Dale, are common in literature, but historical references to actual performers are more rare. When the minstrel was performing these newly found works, the Wars of the Roses were still raging. Life was very difficult for the majority of English people. However, study author James Wade, an early English literature specialist from Cambridge University, says this text shows that fun entertainment was still flourishing as social mobility increased.

Wade found the text when researching in the National Library of Scotland. Wade saw that a scribe had written: “By me, Richard Heege, because I was at that feast and did not have a drink.”

“It was an intriguing display of humor and it’s rare for medieval scribes to share that much of their character,” Wade said. This little joke encouraged him to look into why, how, and where Heege had copied these texts.

This new study focuses on the first of nine booklets that make up the larger Heege Manuscript. The booklet contains three texts that Wade concludes were copied down in 1480 from a memory-aid written by an unknown minstrel that likely performed them near the Derbyshire-Nottinghamshire border in central England. The three texts are a mock sermon written in prose, a tail-rhyme burlesque romance titled “The Hunting of the Hare,” and an alliterative nonsense verse called “The Battle of Brackonwet.” 

“Most medieval poetry, song and storytelling has been lost,” Wade said in a statement. “Manuscripts often preserve relics of high art. This is something else. It’s mad and offensive, but just as valuable. Stand-up comedy has always involved taking risks and these texts are risky! They poke fun at everyone, high and low.”

[Related: Medieval knights rode tiny horses into battle.]

All three texts are comedic and designed for live performance, since the narrator tells the audience to pay attention and even to pass him a drink. The texts also feature regional humor and inside jokes for a local audience.

Wade believes that this minstrel wrote part of his act down since the many nonsensical sequences would have been very difficult to recall solely by memory. 

Part of "The Hunting of the Hare" poem in the Heege Manuscript featuring the killer rabbit. The first lines read: "Jack Wade was never so sad / As when the hare trod on his head / In case she would have ripped out his throat."
Part of “The Hunting of the Hare” poem in the Heege Manuscript featuring the killer rabbit. The first lines read: “Jack Wade was never so sad / As when the hare trod on his head / In case she would have ripped out his throat.” CREDIT: National Library of Scotland.

“He didn’t give himself the kind of repetition or story trajectory which would have made things simpler to remember,” he said “Here we have a self-made entertainer with very little education creating really original, ironic material. To get an insight into someone like that from this period is incredibly rare and exciting.”

Like many present day comedians and actors, medieval minstrels are believed to have had day jobs as peddlers and plowmen, but performed their theatrical gigs at night. Some also may have even gone on tour by traveling the county, while others stuck to local venues. Wade believes the minstrel in these new texts was more of a local performer. 

“You can find echoes of this minstrel’s humor in shows like Mock the Week, situational comedies and slapstick,” said Wade.“The self-irony and making audiences the butt of the joke are still very characteristic of British stand-up comedy.

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Big Tech’s latest AI doomsday warning might be more of the same hype https://www.popsci.com/technology/ai-warning-critics/ Wed, 31 May 2023 14:00:00 +0000 https://www.popsci.com/?p=544696
Critics say current harms of AI include amplifying algorithmic harm, profiting from exploited labor and stolen data, and fueling climate collapse with resource consumption.
Critics say current harms of AI include amplifying algorithmic harm, profiting from exploited labor and stolen data, and fueling climate collapse with resource consumption. Photo by Jaap Arriens/NurPhoto via Getty Images

On Tuesday, a group including AI's leading minds proclaimed that we are facing an 'extinction crisis.'

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Critics say current harms of AI include amplifying algorithmic harm, profiting from exploited labor and stolen data, and fueling climate collapse with resource consumption.
Critics say current harms of AI include amplifying algorithmic harm, profiting from exploited labor and stolen data, and fueling climate collapse with resource consumption. Photo by Jaap Arriens/NurPhoto via Getty Images

Over 350 AI researchers, ethicists, engineers, and company executives co-signed a 22-word, single sentence statement about artificial intelligence’s potential existential risks for humanity. Compiled by the nonprofit organization Center for AI Safety, a consortium including the “Godfather of AI,” Geoffrey Hinton, OpenAI CEO Sam Altman, and Microsoft Chief Technology Officer Kevin Scott agree that, “Mitigating the risk of extinction from AI should be a global priority alongside other societal-scale risks such as pandemics and nuclear war.”

The 22-word missive and its endorsements echo a similar, slightly lengthier joint letter released earlier this year calling for a six-month “moratorium” on research into developing AI more powerful than OpenAI’s GPT-4. Such a moratorium has yet to be implemented.

[Related: There’s a glaring issue with the AI moratorium letter.]

Speaking with The New York Times on Tuesday, Center for AI Safety’s executive director Dan Hendrycks described the open letter as a “coming out” for some industry leaders. “There’s a very common misconception, even in the AI community, that there only are a handful of doomers. But, in fact, many people privately would express concerns about these things,” added Hendrycks.

But critics remain wary of both the motivations behind such public statements, as well as their feasibility.

“Don’t be fooled: it’s self-serving hype disguised as raising the alarm,” says Dylan Baker, a research engineer at the Distributed AI Research Institute (DAIR), an organization promoting ethical AI development. Speaking with PopSci, Baker went on to argue that the current discussions regarding hypothetical existential risks distract the public and regulators from “the concrete harms of AI today.” Such harms include “amplifying algorithmic harm, profiting from exploited labor and stolen data, and fueling climate collapse with resource consumption.”

A separate response first published by DAIR following March’s open letter and re-upped on Tuesday, the group argues, “The harms from so-called AI are real and present and follow from the acts of people and corporations deploying automated systems. Regulatory efforts should focus on transparency, accountability and preventing exploitative labor practices.”

Hendrycks, however, believes that “just as it would be reckless to exclusively prioritize present harms, it would also be reckless to ignore them as well.” Hendrycks likened the moment to when atomic scientists warned the world about the technologies they created before quoting J. Robert Oppenheimer, “We knew the world would not be the same.”

[Related: OpenAI’s newest ChatGPT update can still spread conspiracy theories.]

“They are essentially saying ‘hold me back!’ media and tech theorist Douglas Rushkoff wrote in an essay published on Tuesday. He added that a combination of “hype, ill-will, marketing, and paranoia” is fueling AI coverage, and hiding the technology’s very real, demonstrable issues while companies attempt to consolidate their holds on the industry. “It’s just a form of bluffing,” he wrote, “Sorry, but I’m just not buying it.

In a separate email to PopSci, Rushkoff summarized his thoughts, “If I had to make a quote proportionately short to their proclamation, I’d just say: They mean well. Most of them.”

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Grab these like-new iPad Air and Beats Flex headphones for Father’s Day, now only $114.99 https://www.popsci.com/sponsored-content/ipad-air-beats-flex-fathers-day-deal/ Wed, 31 May 2023 13:00:00 +0000 https://www.popsci.com/?p=544356
An iPad Air with a pair of Beats Flex headphones on a white background
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How's this for a practical gift? Dad is sure to love this refurbished tech duo that won't break your bank account.

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Need a great gift for your dad but unsure what to get? How’s a like-new iPad Air and a pair of renewed Beats Flex headphones sound? Just in time for Father’s Day, it’s on sale for only $114.99.

When it comes to Father’s Day presents, the more practical, the better. Nothing can be more practical than this tech bundle comprised of a refurbished iPad Air and a pair of renewed Beats Flex headphones. This incredible tech bundle won’t break the bank, and you can show Dad how much you care for only $114.99 (reg. $149). But you’ll have to order by June 5 to ensure on-time delivery.

You might feel iffy about gifting your old man something that isn’t brand new, but not to worry. The refurbished iPad Air in this discounted package boasts a Grade A rating, meaning it’s in near-mint condition with barely any cosmetic marks on the body. Meanwhile, the Beats Flex headphones are renewed open-box returns that have been tested, cleaned, and repackaged into their original packaging. They may not be brand new, but they might as well be!

In terms of features, the like-new iPad Air has a 9.7-inch Retina screen that offers a smooth, natural-looking display, an A7 chip that can handle multiple tasks simultaneously, and 16GB storage for storing essential files and media. It also has dual microphones and supports 1080p HD video recording with its 5MP rear camera and 1.2MP FaceTime camera, so your dad will have no problem joining family video chats moving forward. As an exciting bonus, this refurbished iPad comes with accessories, including a case, tempered glass, a stylus, and chargers so Dad can use his new tech securely and easily.

The Beats Flex headphones have a dual-chamber acoustic that delivers superior sonics, Class 1 Bluetooth for an extended range, and an Apple W1 chip for seamless connection to any Apple device. As far as comfort goes, four ear tip options are included for a more personalized fit, and the Flex-Form cable sits at the back of the neck for convenience. This pair also lasts up to 12 hours on a single charge, which can be extended for 1.5 more hours with the 10-minute Fast Fuel charging.

Spoil your dad with this incredible tech bundle this Father’s Day.

Gift Dad this refurbished Apple iPad Air bundled with renewed Beats Flex Headphones for just $114.99 (reg. $149)—order by June 5 to ensure delivery by the holiday.

Prices subject to change.

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This 500-pound Australian marsupial had feet made for walkin’ https://www.popsci.com/environment/marsupial-australia-foot-skeleton/ Wed, 31 May 2023 13:00:00 +0000 https://www.popsci.com/?p=544472
Reassembled partial skeleton Ambulator keanei with silhouette demonstrating advanced adaptations for quadrupedal, graviportal walking.
Reassembled partial skeleton Ambulator keanei with silhouette demonstrating advanced adaptations for quadrupedal, graviportal walking. Flinders University

There's nothing quite like the distant wombat relative on the planet today.

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Reassembled partial skeleton Ambulator keanei with silhouette demonstrating advanced adaptations for quadrupedal, graviportal walking.
Reassembled partial skeleton Ambulator keanei with silhouette demonstrating advanced adaptations for quadrupedal, graviportal walking. Flinders University

Over three million years ago, a 500-plus pound marsupial roamed Australia, winning the prize of the continent’s first long-distance walking champion. In a study published May 31 in the Journal of Royal Society Open Science, a team of scientists described the discovery of this new genus using advanced 3D scans and the partial remains of a 3.5 million year old specimen. 

Most earlier studies on this group have focused on its skull since other skeletal remains are rare in Australia’s fossil record. The skeleton described in this new study, found at Kalamurina Station in southern Australia in 2017, is special since it is the first that was found with associated soft tissue structures. The authors used 3D-scanning to compare the partial skeleton with other diprotodontid material housed in collections all over the world. A hard concretion that formed shortly after the animal died encased its foot, and CT scans revealed the soft tissue impressions on the outline of its footpad.

[Related: Giant wombats the size of small cars once roamed Australia.]

The new genus Ambulator, meaning “walker” or “wanderer,” had four giant legs which would have helped it roam long distances in search of food and water compared to its earlier relatives. It belongs to the Diprotodontidae family, an extinct family of big, four-legged, herbivorous marsupials that lived in New Guinea and Australia. The largest species was Diprotodon optatum, which was about the size of a car and weighed almost 6,000 pounds. Diprotodontids were an integral part of the region’s ecosystem before going extinct about 40,000 years ago. 

“Diprotodontids are distantly related to wombats – the same distance as kangaroos are to possums – so unfortunately there is nothing quite like them today. As a result, paleontologists have had a hard time reconstructing their biology,” study author and Flinders University PhD student Jacob van Zoelen said in a statement

Ambulator keanei lived during the Pliocene era when Australia saw an increase in grasslands and open habitats become more dry. To have enough to eat and drink, diprotodontids likely had to travel great distances. 

“We don’t often think of walking as a special skill but when you’re big any movement can be energetically costly so efficiency is key,” said van Zoelen. “Most large herbivores today such as elephants and rhinoceroses are digitigrade, meaning they walk on the tips of their toes with their heel not touching the ground.  “

Diprotodontids are plantigrade animals, which means that their heel-bone makes contact with the ground as they walk. This is similar to the way humans walk and helps distribute the weight while walking, but does use more energy when running. According to van Zoelen, diprotodontids also have extreme plantigrady in their hands. The bone of the wrist is modified into a secondary heel and this “heeled hand” may have made early reconstructions of the animal look a little bit bizarre.

“Development of the wrist and ankle for weight-bearing meant that the digits became essentially functionless and likely did not make contact with the ground while walking.” said van Zoelen. “This may be why no finger or toe impressions are observed in the trackways of diprotodontids.”

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Why it’s time to stop naming new species after people https://www.popsci.com/environment/naming-new-species-historical-figures/ Wed, 31 May 2023 01:00:00 +0000 https://www.popsci.com/?p=544341
Anophthalmus hitleri, a cave beetle named after Adolf Hitler, has become a target for some collectors.
Anophthalmus hitleri, a cave beetle named after Adolf Hitler, has become a target for some collectors. London's Natural History Museum/Flickr

An international team of scientists wants to stop using eponyms. But the naming authorities won’t budge.

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Anophthalmus hitleri, a cave beetle named after Adolf Hitler, has become a target for some collectors.
Anophthalmus hitleri, a cave beetle named after Adolf Hitler, has become a target for some collectors. London's Natural History Museum/Flickr

This article was originally published on Undark.

George Washington’s palm tree. Thomas Jefferson’s sloth. Edward Harris’s hawk. Quite a few species come with a person’s name attached to them. Sometimes these names — formally known as eponyms — memorialize the original collector. Sometimes it’s a scientist’s family member, a benefactor or government leader, a colleague, or even a celebrity. According to one official estimate, eponyms make up around 20 percent of all animal names in use.

Many species got their eponyms during the early days of scientific collecting, which was partially fueled by the broader colonization programs of European powers throughout the 18th, 19th, and 20th centuries. Over the past few years, however, that history has come under increased scrutiny. In 2020, for instance, amid the protests over the murder of George Floyd by a Minneapolis police officer and the push to remove Confederate monuments, some ornithologists began questioning whether birds named for Confederates and slaveholders should be retitled.

Now, an international group of researchers argues that it’s time to move away from eponyms entirely. “In short, we believe that naming species in honour of real people is unnecessary and objectively difficult to justify,” the authors wrote in a recent paper in the journal Nature Ecology and Evolution. “The Earth’s biodiversity is part of a global heritage that should not be trivialized by association with any single human individual, whatever their perceived worth.”

The authors of the paper are wading into an ongoing and contentious debate — and the scientific institutions responsible for approving new species names aren’t budging.

The goal of naming species — or nomenclature — is to make sure scientific names are uniform across different fields and research labs, said Luis Ceríaco, a commissioner with the International Commission on Zoological Nomenclature, which controls the naming of animal species. “It’s a space to promote stability and promote universality on the use of names,” Ceríaco added. “What we want is to have a set of rules that allow people to really know what they are talking about when referring to species.”

For this reason, the ICZN and its partner organization, The International Association of Plant Taxonomy, follow established codes that prioritize older names, and only alter them for reasons of science and stability.

Proposals to rename species due to social or political concerns have attracted both criticism and support. In February 2023, a group of ICZN commissioners — including Ceríaco — put out a paper against renaming species on ethical grounds. Deciding which eponyms should be replaced due to “perceived offensiveness” isn’t in the code’s remit, they wrote. “Owing to the inherently subjective nature of making such assessments, it would be inappropriate for the Commission to assert judgments on such matters of morality, because there are no specific parameters to determine thresholds for offensiveness of a scientific name to a given community or individual, either in the present day or in the future.”

Other scientists, however, have been happy to step into the gap.


The push to reassess problematic species names isn’t new. Consider the case of Anophthalmus hitleri, a cave beetle named after Adolf Hitler in the 1930s, the eponym of which — in addition to honoring a historical genocidaire — has made the insect a target for some collectors. Yet despite calls to drop the eponym, the species has not been renamed by the ICZN. “The logic to date in preserving ‘hitleri’ is that the name per se is not offensive,” entomologist May Berenbaum noted in a 2010 issue of American Entomologist. “Frankly, though, a scientific name that sentences a species to extinction at the hands of fanatical Fascist memorabilia collectors causes considerable offense, at least to me.”

More recently, in 2015, the Rhodes Must Fall movement — a reference to Cecil Rhodes, the former prime minister of British colonial South Africa — launched discussions in the botanical sciences about replacing “culturally offensive and inappropriate names,” which grew alongside similar debates in ornithology around the 2020 Black Lives Matter protests.

For some people, the stakes of such decisions can feel high. “Naming and language have power. The way that you use language tells people whether they belong or not,” Earyn McGee, a conservation biologist and organizer of Black Birders Week, told Undark in 2020. The refusal to change species names, she said, “tells Black people and other people of color that they don’t matter, that they’re not important.”

Such movements have, in turn, led some taxonomists to argue that renaming species injects political considerations into taxonomy, opening up thorny questions. After all, where should scientists draw lines between good actors and bad ones? (Should species named after Queen Victoria be replaced? What about plant names commemorating American slaveholders George Washington and Thomas Jefferson?)

“We have a code of ethics,” Ceríaco said, “and the ethics part says that no one should erect a new name knowingly that’s going to cause offense.” However, he added, the ICZN emphasizes the freedom of authors to name species as they see fit, so they also don’t revise names that break their ethics code. “It’s always on the responsibility of the author. We strongly suggest for people to be sure that what they’re going to erect is not going to cause offense to anyone.”

The alternative, Ceríaco said, would be for the ICZN to have to adjudicate which names are acceptable, opening “a pandora’s box.” Allowing such revisions at all would affect the work of global researchers, conservationists, and others who depend on a stable taxonomic framework. “We’re not being dismissive toward the arguments that the names are offensive,” he said. But, he added, the consequences of changing the names would be trickier than keeping them.

Not all researchers were convinced by the ICZN’s argument. Some of them, like Patrícia Guedes — a biologist with the CIBIO Research Center in Biodiversity and Genetic Resources — banded together to in March 2023, pointing out that eponyms were effectively more trouble than they were worth. Part of the issue with eponyms, they noted, was that the practice is inextricably bound up with science’s colonial history: Many past researchers came from colonizing European nations, and as a result many species ended up named after White, male, upper-class Europeans. In Africa alone, the researchers found, 1,565 species of birds, reptiles, amphibians, and mammals — a quarter of the continent’s native vertebrates — are eponyms, the majority of which honored “colonizers or people of colonial descent.”

“A name that is considered innocuous by some may be perceived as offensive by others, and names that were once considered inoffensive are not necessarily viewed in the same way in a post-colonial world,” the authors wrote. Overturning all prior eponyms would be ethically sound but practically unfeasible, they conceded. Still, the authors argued that the ICZN could put taxonomists of the species’ native region in charge of renaming proposals.

Guedes told Undark that it would be neater — and easier — to tighten the ICZN code’s rules to restrict eponyms going forward. As long as organisms are named after people, she said, such arguments about which names are appropriate will continue: “I’m sure there are other ways of honoring people who’ve contributed to science that’s not attaching their name to another living being.”


Guedes and her colleagues face an uphill battle: Many taxonomists like eponyms. “I think it’s positive in many, many cases,” Ceríaco said. He himself has described around 40 species, some of them eponyms, including a species of viper named after James Hetfield from Metallica. (This is a bit of tradition in taxonomy: Consider Taylor Swift’s millipede, or Leonardo DiCaprio’s snake.) Such names are a chance to get communities that generally don’t pay attention to such discoveries involved, he said. Eponyms also give researchers the chance to name species after scientists from the countries in which they were found, he added, such as an Angolan gecko that honors local scientist Francisco M. P. Gonçalves.

“There are certainly unfortunate eponyms out there,” Stephen Heard, an ecologist and author of “Charles Darwin’s Barnacle and David Bowie’s Spider,” a book about eponyms, wrote to Undark in a Twitter message. “There are also wonderful ones that bring attention to underrecognized figures in science, including Indigenous people, women, and more.”

It’s an honor for a researcher to have a species named after them, said Brian Sidlauskas, an ichthyologist at Oregon State University. (He would know: There’s an Amazonian fish with his name on it.) But while he’s not interested in barring their use, he does think the ICZN could create a process for ditching problematic names — perhaps through a panel of experts tasked with weighing in on proposed name changes. “There really are some names in history that genuinely are really offensive, so having some mechanism for changing those is a good idea,” he said — a position other researchers have staked out as well.

In addition, the ICZN’s stance against making changes for ethical reasons is a “classic slippery slope argument,” Sidlauskas said. “It’s clear that they don’t want to the responsibility for doing so. But if not them, then who has the responsibility and ability?”

Others argue that naming practices should change on a community level, regardless of what the ICZN does. “Going forward I think that White Europeans should not be naming species from countries that are not their own after other White Europeans,” said Laura Jennings, a botanist at Kew Royal Botanic Gardens. While she doesn’t feel it’s for her to tell colleagues how to name species in their own country, she’d decline her own eponym. “My preference is to name species after a characteristic of the plant, a place name, or a name in a local language,” she added. “Something that links the plant to its native habitat.”

The broader community discussion isn’t going anywhere. The ICZN is currently working on the 5th edition of its formal code, Ceríaco said, which will be delivered for comment and debate by the community before it’s ratified in the next year or two. That’s part of the reason he and his colleagues made their position clear earlier this year, he said — to foster debate.

It’s a goal that Guedes’ team shares. “I don’t think the real change is going to happen anytime soon. But what we wanted to do was create a space for discussion,” she said.

“And I think we’re achieving that,” she added.


Asher Elbein is a writer based in Austin, Texas. His work has appeared in The Oxford American, the Texas Observer, and The Bitter Southerner.

This article was originally published on Undark. Read the original article.

Wildlife photo

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Google engineers used real dogs to develop an agility course for robots https://www.popsci.com/technology/google-barkour-robot-dog-agility/ Tue, 30 May 2023 23:00:00 +0000 https://www.popsci.com/?p=544460
Beagle flying over an obstacle hurdle
A robot dog 'Barkour' course may provide a new industry standard for four-legged machines. Deposit Photos

Researchers hope the 'Barkour' challenge can become an industry benchmark.

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Beagle flying over an obstacle hurdle
A robot dog 'Barkour' course may provide a new industry standard for four-legged machines. Deposit Photos

It feels like nearly every week or so, someone’s quadrupedal robot gains yet another impressive (occasionally terrifying) ability or trick. But as cool as a Boston Dynamics Spot bot’s new capability may be, it’s hard to reliably compare newly developed talents to others when there still aren’t any industry standard metrics. 

Knowing this, a team of research scientists at Google are aiming to streamline evaluations through their new system that’s as ingenious as it is obvious: robot obstacle courses akin to dog agility competitions. It’s time to stretch those robotic limbs and ready the next generation of four-legged machines for Barkour.

[Related: This robot dog learned a new trick—balancing like a cat.]

“[W]hile researchers have enabled robots to hike or jump over some obstacles, there is still no generally accepted benchmark that comprehensively measures robot agility or mobility,” the team explained in a blog post published last week. “In contrast, benchmarks are driving forces behind the development of machine learning, such as ImageNet for computer vision, and OpenAI Gym for reinforcement learning (RL).” As such, “Barkour: Benchmarking Animal-level Agility with Quadruped Robots” aims to rectify that missing piece of research.

Illustrated side-by-side of concept and real robot agility course.
Actual dogs can complete the Barkour course in about 10 seconds, but robots need about double that. CREDIT: Google Research

In simple terms, the Barkour agility course is nearly identical to many dog courses, albeit much more compact at 5-by-5 meters to allow for easy setup in labs. The current standard version includes four unique obstacles—a line of poles to weave between, an A-frame structure to climb up and down, a 0.5m broad jump, and finally, a step up onto an end table.

To make sure the Barkour setup was fair to robots mimicking dogs, the team first offered up the space to actual canines—in this case, a small group of “dooglers,” aka Google employees’ own four-legged friends. According to the team, small dogs managed to complete the course in around 10 seconds, while robots usually take about double that time.

[Related: Dogs can understand more complex words than we thought.]

Scoring occurs between 0 and 1 for each obstacle, and is based on target times set for small dogs in novice agility competitions (around 1.7m/s). In all, each quadrupedal robot must complete all five challenges, but is given penalties for failing, skipping stations, or maneuvering too slowly through the course.

“We believe that developing a benchmark for legged robotics is an important first step in quantifying progress toward animal-level agility,” explained the team, adding that, moving forward, the Barkour system potentially offers industry researchers an “easily customizable” benchmark.

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Honda’s electric go-karts pack a race car’s spirit into a tiny EV https://www.popsci.com/technology/honda-electric-go-kart/ Tue, 30 May 2023 22:04:28 +0000 https://www.popsci.com/?p=544614
Honda's eGX go-kart.
Honda's eGX go-kart. Kristin Shaw

These fun vehicles will hit 45 mph—and have more in common with real open-wheel race cars than you might think.

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Honda's eGX go-kart.
Honda's eGX go-kart. Kristin Shaw

At first glance, race cars and electric go-karts have nothing in common except for a vaguely similar shape. Both are open-cockpit vehicles with wide wheels, and they both thrive on sharp turns—and that appears to be it. 

What many don’t realize is that go-karts are often the entry point for future Indy 500 drivers, and competitors also practice in the tiny vehicles to develop muscle memory. Several companies manufacture karts, and the most recent iteration of Honda’s version is the eGX go-kart concept, which is equipped with two 10-kilo (about 23 pounds) swappable battery packs good for about 45 minutes at a time. This battery technology allows the brand to test the dynamics of electric vehicles on a smaller scale before rolling it out to the much pricier race cars (and eventually apply this insight to passenger vehicles as well). 

Honda Accord, Civic, CR-V, and Odyssey owners might not realize it, but Honda’s passion starts with racing, and passenger cars reap the research benefits. Only two manufacturers make IndyCar engines, and Honda is one of them. In the last 30 years, Honda has claimed 18 IndyCar championships and 15 Indianapolis 500 wins. 

PopSci had a chance to pilot one of these eGX karts in the Indianapolis area over Indy 500 weekend. It was heart-pounding, arm-muscle-straining excitement, like a taste of the race itself (minus the yellow and red flags). We also got to speak with engineers to better understand Honda’s strategy for its entire product lineup, from power tools to cars. Here’s what we learned.  

Each battery pack weighs about 23 pounds.
Each battery pack weighs about 23 pounds. Kristin Shaw

Battery packs offer modularity and continuity

Kids interested in racing start with small go-karts and work their way up. If they have enough skill and a little luck, they’ll find themselves behind the wheel of a high-performance IndyCar or F1 machine. As they develop, drivers keep practicing with karts—albeit increasingly high-powered versions—that twist and squeal and mimic the experience of a road course race. 

“Karts are closer to the open-wheel experience than anything else,” says John Whiteman, commercial motorsports manager at Honda Performance Development. (In case you were wondering, an open-wheel car is one that has its wheels outside of the car versus underneath, like a passenger car.)

Honda Performance Development, or HPD for short, was founded in 1993 for the purpose of designing and developing racing engines along with chassis and performance parts for motorsports. HPD has a history of repurposing small engines to make gas-powered karts and quarter midgets (small racers that are about one-quarter scale of a full-size midget race car).

If you’ve ever been to an outdoor recreational karting track with friends and family, you’re familiar with the whine and buzz of the gas-powered version. Gas-powered kart engines are often shared with lawn mowers, made by other companies like Briggs and Stratton as well as HPD, and indoor tracks use electric karts so they’re not filling the air with toxic fumes. 

The eGX takes a typical electric go kart to the next level, employing two saddle packs on either side of the seat to house the lithium-ion batteries that power the kart. That way, the kart is balanced and maintains its grip with the road without adding rear bias or tip-over potential by loading the battery on one side. 

Whiteman says the swappable battery packs offer many upsides, including reduced maintenance costs and environmental benefits. Through this technology, HPD has learned more about energy storage, heat management, and vehicle weights and balances. These battery packs are already in use for small construction equipment like cordless rammers and compact excavators.

Along with reduced emissions and noise pollution, battery-pack-powered vehicles keep the equipment in commission continuously if you have a bank of these batteries that can be charging up while the others are in use. 

How race car research benefits Honda’s passenger cars

Ultimately, Honda and its HPD division are testing new ideas to find out how that translates to performance and customer satisfaction. Rebecca Johnson, HPD director of production and senior manager, says exploring electrification and sharing each division’s findings throughout the company creates opportunities to improve across the board. 

“We’re trying to train ourselves to be better at hybrids and battery packs for electrified racing,” Johnson says. “Let’s build something. Let’s make a car and let’s call it our laboratory, if you will, and let people ‘play’ and iterate on the design or technology. As we strive forward, we can put that together with what customers want.”

In 2024, the IndyCar series will run with hybrid units with 2.2-liter engines; currently, the power is all supplied by renewable race fuel. Honda is getting ready for this change by testing battery packs and a custom concept hybrid built with a tubular cage and sheet metal copied from a production CR-V crossover. It’s mind-boggling to ride in the Beast, as Honda calls it internally, as it looks like an SUV with a giant wing and sounds like a screaming hurricane inside. This is the future, and it’s pretty exciting. 

Johnson is steeped in racing culture, and she has her eyes trained forward as HPD works to maintain the visceral appeal of IndyCar and Formula One races while moving toward drastically reducing emissions.   

“We’re a racing company that happens to sell cars,” Johnson says. “Racing is in our DNA. If we can prove out tough things on a race track, we can surely make a good Civic. If you can do it at [IndyCar] level, then you should be very good at performance for a Civic owner. They want all the things that we want [for race cars] but on a different level.”

The post Honda’s electric go-karts pack a race car’s spirit into a tiny EV appeared first on Popular Science.

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The best ergonomic desks of 2023 https://www.popsci.com/story/reviews/best-ergonomic-desk/ Tue, 09 Mar 2021 20:59:00 +0000 https://stg.popsci.com/uncategorized/best-ergonomic-desk/
Go easier on your body with one of the best ergonomic desks.

Make the most out of your workday with the best ergonomic desk—one that fits you just right.

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Go easier on your body with one of the best ergonomic desks.

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Best overall The Lillipad Work Station is one of the best ergonomic desks. Lillipad Work Station
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Best dual-monitor FLEXISPOT Adjustable Standing Desk FLEXISPOT Adjustable Standing Desk
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Best height-adjustable FEZIBO Adjustable Electric Standing Desk FEZIBO Adjustable Electric Standing Desk
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If your home office is a hodgepodge of mismatched furniture that leaves you achy at the end of a long day, consider the ergonomic desk. These desks can go a long way toward making your work station a little less clunky and a lot more comfortable.

By definition, the term “ergonomic” refers to efficiency and comfort; ergonomic computer desks, then, are designed with those two key factors in mind. By forcing you to sit up straight, relax your shoulders, place your wrists in a neutral position, and not get too close to your screen, they should make for a much better workday. Of course, a desk can’t actually force you to adhere to these habits—but the best ergonomic desks will make it that much easier.

How we chose the best ergonomic desks

Working from home for many means a lot of time at our desks. All that sitting and typing can do a number of our bodies. Ergonomic desks provide a range of features that can help counteract some of the effects, from height adjustability that allows you to alternate between sitting and standing, to a wider workspace, where you can incorporate desk pads and other ergonomic tools. In compiling our list of ergonomic office desks, we considered a variety of factors, including space requirements, height adjustability, what type of equipment the desks could support, whether they provided storage, price, and value.

The best ergonomic desks: Reviews & Recommendations

Whether you’re looking for a durable desk that can support two monitors or a portable, lightweight option you can use for other purposes or easily stick in the closet, there’s an ergonomic desk to suit your needs.

Best overall: Lillipad Work Station

Jen McCaffery

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Specs

  • Material: Steel and composite
  • Dimensions: 42 x 46.25 x 24 inches
  • Power: Corded electric
  • Weight: 67 pounds

Pros

  • Comes fully assembled
  • Provides generous workspace
  • Designed with integrated power strip
  • Portable

Cons

  • Heavy 
  • Expensive

If you’ve got a complex workspace with a monitor or two, laptop, desktop, and power cords, but you don’t want to sit all day, consider the Lillipad Work Station. This electric desk is available in two versions that rise to either 42 inches or 48 inches (recommended for people 5’9” and taller) that allow users to stand at an ergonomic desk height. At 67 pounds and 72 pounds each and with metal legs, these desks are more substantial that many other options on the market, but are designed with wheels for portability. 

The main selling point of the Lillipad is that it comes fully assembled and ready to go out of the box. When the UPS man delivered the box to my apartment, he struggled to get it up the steps. But once I got it out of the box, it was very easy to start using the Lillipad 42. I just plugged it in, unlocked the safety lock, and used the buttons in the righthand corner of the desk to raise  and lower it. The 46-inch wide workspace provided more than enough room for my equipment, and if you have a single monitor or two monitors, you can purchase stands for either separately from Lillipad. 

The work station also features an integrated power system with three outlets, three USB ports, and one USB-C port, so you can plug everything in and charge your devices. The desk is available with a tabletop in in four colors (maple, black, white, oak). When I was done working, it was easy to lower the desk to its lowest height of 6 inches for storage. That said, while this work station is designed with portability in mind, it’s worth noting that at about 70 pounds, the Lillipads aren’t necessarily easy to just toss in the trunk of your car.

Best with storage: Nost & Host Computer Desk

Nost & Host

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Specs

  • Material: Engineered wood and steel 
  • Dimensions: 47.24 x 23.62 x 55.12 inches
  • Weight: 46.3 pounds

Pros

  • Provides overhead and lower storage
  • Modern design
  • Generous workspace

Cons

  • Not height-adjustable
  • Made from lower-quality wood

This ergonomic computer desk checks all of our style boxes (no plastic in sight!) while still offering tons of storage and adjustable shelves. The finish is also scratch-resistant and waterproof, in case you spill some coffee. But, while some of the shelves are adjustable, the desk itself is not—meaning there’s no wiggle room when it comes to height. So you may also want to accompany this desk with one of the best ergonomic chairs.

Best for small spaces: GreenForest 2-Tier Folding Desk

GreenForest

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Specs

  • Material: Engineered wood and metal 
  • Dimensions: 32 x 32 x 32.7 inches
  • Weight: 20 pounds

Pros

  • Comes assembled
  • Provides ample workspace
  • Lightweight
  • Can serve a range of purposes

Cons

  • Not substantial
  • Not height-adjustable

Small space living demands a certain degree of ingenuity, and this ergonomic desk from GreenForest fits the bill. Available in small and large sizes, this rectangular desk comes fully assembled right out of the box. With two tiers, this desk has plenty of room for a laptop, keyboard, and mouse in its 27-inch workspace and can support two monitors on the upper shelf. The design is sleek and it can double as a writing desk, TV table, or display table. When you’re done, it easily folds down to a super slim shape. And at just 20 pounds, it’s easy to transport.

Best dual-monitor: FLEXISPOT EM7 Adjustable Standing Desk Converter

Flexispot

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Specs

  • Material: MDF, steel, rubber
  • Dimensions:‎16.3 x 16.3 x 5.7 inches
  • Weight: 45.3 pounds

Pros

  • Allows you to work on two monitors at once
  • U-shaped design
  • Mechanical lift

Cons

  • Not actually a desk
  • No storage space

If you’d like to adjust the height of your workspace, but don’t want to invest in a whole new desk, consider the FLEXISPOT EM7 Adjustable Standing Desk Converter. The lower tier of this converter can easily hold a standard keyboard and mouse, or 13-inch laptop, while the upper tier can support two monitors. Using the handle, users can adjust the mechanized X frame in height from  4.7 inches to 19.7 inches.

It’s the unique shape of this converter is what really makes it stand out—because it’s a U (instead of your typical rectangle), it will be so much easier to interact with all of your monitors without constantly readjusting your seat. This model is available in three sizes (36, 40, and 42 inches) and two colors (black and rustic). For further options, check out the best desks for dual monitors.

Best for gamers: Mr.IRONSTONE Gaming Desk

Mr. Ironstone

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Specs

  • Material: Polyvinyl chloride, stainless steel, engineered wood
  • Dimensions: 23.6 x 45.2 x 30.4 inches
  • Weight: 36 pounds

Pros

  • Designed with cable storage
  • Comes with cup holder
  • Has headphone hook

Cons

  • No shelves for storage
  • Not height-adjustable

Simple yet functional, this ergonomic gaming desk makes the most of every inch of space, ensuring that nothing comes between you and your game. Cluttered desktop? Slip tangled wires into the built-in cable storage in the back of the desk, and drop your soda can into the cup holder. Sans clutter, you’ll be climbing up the leaderboards in no time. For additional support during long sessions, pair it with one of the top office chairs for back pain.

Best height-adjustable: FEZIBO Adjustable Electric Standing Desk

FEZIBO

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Specs

  • Material: Steel, wood
  • Dimensions: 24 x 48 x 27.1 inches 
  • Weight: 73.8 pounds

Pros

  • Adjusts from 27.6 inches to 47.3 inches
  • Available in four different heights
  • Two tiers for more computer equipment

Cons

  • Limited storage

This adjustable desk is actually electric, so there’s almost no work to be had in changing its height—simply tap the buttons, et voila. This ergonomic standup desk comes in four versions, with a range of heights (40, 48, 55 and 60 inches). Industrial-grade steel makes this desk extremely sturdy, and a two-tier wooden top provides plenty of room for a laptop, keyboard, mouse, and at least one monitor. This desk comes in six colors and with casters that allow for portability but also lock to keep your work station in place.

Best budget: EUREKA ERGONOMIC Simple Computer Desk

Eureka

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Specs

  • Material: Wood
  • Dimensions: 39.4 x 29.5 x 23.6 inches 
  • Weight: 23.36 pounds

Pros

  • Affordable
  • Generous workspace
  • Lightweight
  • Multi-functional

Cons

  • Provides no storage
  • Not adjustable

In stark contrast to some of the other desks we’ve mentioned, this ergonomic desk from Eureka is as simple as it gets. Minimalism is key here: a steel frame means you’re not compromising on materials, and a very plain design makes this desk easy to assemble. You’ll miss out on some features—like a second-tier for storage, or side shelving, for example—but if you’re a minimalist at heart, this could be the desk for you.

Features to consider when shopping for the best ergonomic desk

When shopping for the best ergonomic desk, you’re going to want to consider a few factors: comfort, size, price, posture, and style. And, like most purchases, it’s rare that you can have it all—more likely, you’ll have to prioritize your needs, and shop accordingly. On that note, check out the following desks below, which were all selected with the aforementioned factors in mind.

Style

It’s no secret that ergonomic desks aren’t exactly the most stylish—in some cases, far from it. They’re designed with efficiency and productivity in mind, and, inevitably, that means that taste isn’t top priority. But that’s not to say that in order to be comfortable and maintain good posture you must forego style altogether. Find the right desk that matches your home office décor, and you can have it all. And you can pair it with one of the best office chairs.

Your space

If you don’t have a separate room for your home office, or even a designated permanent space, you’re probably looking for a desk that’s lightweight, portable, and easy to shuffle around. Maybe you want to tuck it away in a closet each evening, or simply remove your laptop and make good use of the surface area for some other task. That doesn’t mean it can’t be ergonomic. In fact, you can follow the exact same rules of sitting far enough away from your screen, for example and keeping your wrists straight, as you can with a much larger desk.

Simply put, sometimes it feels really good to completely remove any reminder of work from your space, and take back some of that work-life balance that might have otherwise been lost in our collective shift to working from home.

Number of monitors

Computer work stations vary widely depending on your job; for some, a mere laptop will do, while others need a much more, shall we say extravagant, setup. We’re talking two—or sometimes, three!—monitors, along with a host of other gear, and with that amount of screentime, only the sturdiest desk will suffice.

Beyond that, trying to squeeze everything in on top of a too-small surface area makes for a cramped, uncomfortable home office setup—thus, your ergonomic desk of choice better be quite large, too. If you prefer another option, check out these laptop stands for desks.

Work and play

We’ve already talked a lot about optimizing your workflow with the help of an ergonomic desk, but that doesn’t mean these home office beauties are exclusively for work. On the contrary, we know that so much of our social lives happen online, too, and that means we spend a lot more time at the computer than just the amount required for our jobs. Case in point: gaming, which is extremely popular, extremely fun, and extremely time-consuming, in that any hours spent behind the screen seem to simply melt away.

When you’re spending hours at a time hunched over your game of choice, it doesn’t take long before your back and neck begin to protest. That is, unless you have an ergonomic desk setup, in which case, your posture is excellent, and you’re golden.

Standing v. sitting

One telltale sign of an ergonomic desk is its adjustable height, which means you don’t have to spend all day sitting down. As the saying goes, everything in moderation, and that includes being on your feet versus being on your bottom. By cranking the desk up to a taller height, you can stretch out those legs, readjust your posture, and squeeze a little more movement into your day—without, say, running around the block.

Price

When you’re shopping for an ergonomic desk, it’s fairly easy to drop a few hundred bucks. The difference between a desk that checks all of the boxes and one that doesn’t could be some serious back, neck, or shoulder pain. And if you’re working from home, you’re going to be spending the majority of your days at this thing, so you want it to feel good and look good. We get it! That said, don’t go out of your way to break the bank. More money doesn’t always signal a superior product.

So, with that in mind, how does one find a good, cheap ergonomic desk? We’re so glad you asked. First things first: go simple. Cut out all the extra bells and whistles that you don’t really need (even if they look cool). Go for a more affordable material than say, solid wood, and be prepared to assemble it yourself. Here’s the best ergonomic desk we’ve found at an affordable price.

FAQs

Q: How much does an ergonomic desk cost?

Ergonomic desks can range from more than $1,000 for high-end electric models like the Lillipad Work Station to less than $90 for simple options such as our budget pick, the EUREKA ERGONOMIC Simple Computer Desk.

Q: Does an ergonomic desk really improve posture?

Yes—if you utilize it correctly, that is! By sitting up straight, relaxing your shoulders, placing your wrists in a neutral position, and not getting too close to the screen, your posture should naturally improve. Ideally, the right ergonomic desk will simply make it easier to achieve this setup.

Q: How do I choose the right size ergonomic desk?

First, assess the size of your home or apartment, before you go shopping. Will the desk live in a separate office? Or does it need to fit in several different areas? Will it serve one person or a few? These are all important considerations for picking the right size desk, and will help you determine what’s best for you.

Q: Who makes the best ergonomic desk?

Depends what you’re looking for—Eureka, Jarvis, Poppin, Kensington, and Flexispot are all good places to start, but in order to really answer that question, you’ll have to pinpoint what your priorities are, and decide how much money you’re willing to spend.

A final word on shopping for the best ergonomic desk

Ergonomic desks have the potential to vastly improve your workday, so it’s worth taking the time to do some research and find out just what type of desk might be the right one for you. By taking into account factors like comfort, size, price, posture, and style, you’ll be on your way to buying the best ergonomic desks for your office in no time.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

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The best shotgun mics in 2023 https://www.popsci.com/reviews/best-shotgun-mics/ Fri, 06 May 2022 17:00:05 +0000 https://www.popsci.com/?p=439316
Various shotgun mics from Rode, Shure, and Neumann
Abby Ferguson

Capture every nuanced note and subtly spoken word with these great microphones.

The post The best shotgun mics in 2023 appeared first on Popular Science.

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Various shotgun mics from Rode, Shure, and Neumann
Abby Ferguson

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Best overall Sennheiser MKH 416 is the best shotgun mic overall. Sennheiser MKH 416
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Professional sonics and build capture the sound and fury of whatever you’re doing, wherever you are.

Best compact Rode NTG3B is the best compact shotgun mic. Rode NTG3B
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A relatively moderate price tag but wide frequency response means this giant sound from a small package.

Best for DSLR Rode VideoMic Pro+ is the best shotgun mic for DSLR. Rode VideoMic Pro+
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Able to run off of AA batteries, with a build that belies its affordable price tag, this is a perfect beginner mic.

Shotgun mics are flexible tools for capturing natural, focused sound for film and television, environmental recordings, sporting and live events, vlogs, or voice-overs. Their narrow pickup pattern rejects noise from the sides and, to a certain extent, the back, keeping the focus on your subject. The best shotgun mics are light enough to mount on a camera or carry on a boom pole all day and, in many cases, built with enough durability to survive the rough-and-tumble life of location recording. 

Plenty of times, you’re on the street or live streaming and don’t have the luxury of individually miking people, or you’re filming a scene where you can’t have a visible lavalier mic. That’s why you’ll find top-notch shotgun mics throughout the professional world—often accompanied by professional-level prices. But shotguns have been around for a while, and these ubiquitous tools of the trade are often inexpensive enough that even beginners and budget-minded users can add quality equipment to their kit bags. 

With every reputable—and less than reputable—microphone manufacturer producing them, it’s sometimes hard to figure out which shotgun mics deliver on their promise of great sound. So to help you out, we’ve rounded up a list of tips, advice, and the best shotgun mics.  

How we chose the best shotgun mics

We based our selection of the best shotgun mics on our own personal experience in the film, TV, and professional audio worlds, as well as conversations with other professional audio engineers and filmmakers, experts at equipment rental houses, and musicians. We consulted specialty review sites, industry trade magazines, and blogs, and read through the online impressions of typical users to see if performance typically matched a mic’s promise. In evaluating our selections, we prioritized sound quality and looked at construction (including moisture resistance), price, size, and how each microphone is powered.

The best shotgun mics: Reviews & Recommendations

Shotgun mics are ideal for recording dialogue on a movie set, the action on the court at a basketball game, or animals out in nature. It’s important to note that no shotguns will reject all off-axis sound. But they do an excellent job of keeping the focus on your subject.

Best overall: Sennheiser MKH 416

Sennheiser Pro Audio

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Specs

  • Weight: 6.17 ounces
  • Length: 9.84 inches
  • Frequency response: 40 Hz – 20 kHz

Pros

  • Wide frequency response for clear, natural sound
  • Tight polar pattern isolates sound sources
  • Moisture resistant

Cons

  • Expensive

Sennheiser’s name repeatedly pops up when discussing the best microphones, and the venerable German manufacturer doesn’t slack off with their flagship MKH 416 shotgun mic. This professional-grade piece of kit has a wide 40-20,000 Hz frequency response, with a hyper-cardioid polar pattern at the low to mid frequencies that does an excellent job of rejecting off-axis sounds while zeroing in on the dialogue and other mid-frequency sources.

The shotgun works great indoors or out across various environments, thanks to an RF condenser design that’s highly moisture-resistant. And the MKH 416’s compact and light construction makes it easy to mount the mic on a boom pole without sacrificing maneuverability or tiring out your operator.

Make no mistake; you can get excellent shotgun mics for less money. But as good as they are, none provide the combined level of sonic quality, robust construction, and all-around utility of the MKH 416.

Best compact: Rode NTG3B

RØDE Microphones

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Specs

  • Weight: 5.75 ounces
  • Length: 10.4 inches
  • Frequency response: 40 Hz – 20 kHz

Pros

  • Wide frequency response for natural sound
  • Moisture resistant 
  • Easy to mount on a camera or boom

Cons

  • Slightly thinner sounding

Rode makes excellent mics. And thanks to its relatively moderate price tag, the NTG3B represents a common first step into the world of high-quality microphones. But thanks to its wide, natural 40-20,000 Hz frequency response and excellent build quality, it’s also the last stop for many pro and semi-pro indie filmmakers, documentarians, broadcast journalists, podcasters, and in-house audio-video teams.

It has excellent off-axis rejection, and its RF condenser technology protects it from moderate moisture. It isn’t quite as sensitive or directional as our top pick, Sennheiser’s MKH 416, but it usually costs about $300 less—and includes a handy metal case. For all but the most demanding users, that is often worth the trade-off. It’s still not what we’d consider “budget-priced,” but you definitely get what you pay for in terms of sonic integrity and build. 

Best for DSLR: Rode VideoMic Pro+

RØDE Microphones

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Specs

  • Weight: 4.3 ounces
  • Length: 6.69 inches
  • Frequency response: 20 Hz – 20 kHz

Pros

  • Built-in shockmount resists handling noise
  • Extremely compact design
  • Multiple power options
  • 3.5mm TRS connectors

Cons

  • No XLR connectivity
  • Off-axis rejection could be better

Rode designed this compact and handy shotgun mic with mobile journalists, vloggers, and run-and-gun shooters in mind. It connects to cameras or audio recorders via a 3.5mm TRS cable and features an integrated shockmount that protects it from handling noise. The VideoMic Pro+ also has a built-in cold-shoe mount—so no extra arms or connectors are needed to mount it on your camera. 

The mic can be tuned to handle different recording environments, with buttons providing low-cut filters at 75 Hz or 150 Hz. You can also boost the frequency at 7 kHz if things start sounding a bit muddy. The mic has adjustable gain, as well, to help compensate for very loud or soft sounds. 

The VideoMic Pro+ won’t accept phantom power, but it does allow you to use AA batteries, Rode’s rechargeable battery, or an external battery that can connect via USB. 

With a shorter barrel, this shotgun mic sometimes has trouble rejecting off-axis sounds, especially in environments with large and noisy crowds. But if you want to keep your kit low-profile and nimble, this trade-off might be worth it.

Premium pick: Schoeps CMIT 5

Schoeps

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Specs 

  • Weight: 3.35 ounces
  • Length: 9.88 inches
  • Frequency response: 40 Hz – 20 kHz

Pros

  • Natural sound
  • Three switchable filters
  • Shielded against electronic interference
  • Compact design

Cons 

  • Very expensive.
  • Sensitive to environmental issues

Shoeps makes some of the best-sounding microphones in the business, and the CMIT 5 is no exception. It has a frequency response of 40-20,000 Hz tuned to provide flat, transparent, natural audio. But it also has three filters in case some additional acoustic sculpting is required: increase vocal clarity with a 5 dB boost at 10 Hz; roll off some bass at 300 Hz to offset proximity effect; or do a steep cut below 80 Hz to help wrangle handling-noise from a mic boom. It’s designed to perform best when paired with a high-gain mic preamp and is ideal for high-end applications like capturing dialogue, foley work, sound effects, or recording nuanced instruments.

However, Schoeps mics are some of the most sensitive to environmental issues like humidity. You don’t want to bring the CMIT 5 into the jungle or shoot down in Florida outside of an environmentally controlled building. This microphone is for the studio, concert hall, or closed set.

Remember that the best of the best comes with a high price tag, and the Schoeps CMIT 5 might be more microphone than many people outside the professional field need. 

Most versatile: Shure VP89M

Shure

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Specs 

  • Weight: 4.9 ounces
  • Length: 9.41 inches (Capsule), 4.02 inches (Preamp)
  • Frequency response: 50 Hz to 20 kHz

Pros

  • Unique modular capsule design
  • Excellent sound quality
  • Switchable low-cut filter
  • Rugged yet lightweight build quality

Cons

  • Requires 11 to 52 VDC phantom power

If you record in various situations, you typically need multiple shotgun mics to suit each scenario. But the Shure VP89M offers a unique modular design with interchangeable capsules, so you can stick with one mic even across indoor or outdoor applications. This version has a medium capsule, but you can also purchase short and long capsules to round out your kit. 

Shure built this mic around a Class-A transformerless preamplifier. It features a switchable low-cut filter to assist with less-than-desirable bass frequencies. The Medium capsule provides a narrow 50-degree acceptance angle, while the Long capsule offers a narrower angle, and the Short is wider. The mic produces a clean and natural sound that is very well-balanced. And it can easily pick up sound from up to 10 feet away, making it a worthy long-range mic option.

The Shure VP89M features a standard XLR 3-pin output. The aircraft-grade aluminum alloy construction adds to its durability but keeps the mic lightweight, making it easier to use for long periods. And it can operate in a wide range of temperatures and humidity levels. Though you must purchase the different capsules separately, this comes with a windscreen and carrying case. 

Best professional: Neumann KMR 81 i

Neumann

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Specs 

  • Weight: 5 ounces
  • Length: 8.9 inches
  • Frequency response: 20 Hz – 20 kHz

Pros

  • Warm, clear sound
  • Works in a variety of situations
  • Low sensitivity to wind and handling noise
  • Compact enough to mount on a camera

Cons

  • Expensive

Neumann makes some of the best microphones, and the KMR 81 i is no exception. It has a steep price tag, but you get a lot for that high price. It is a super-cardioid mic and uses a pressure gradient transducer and an interference tube depending on the wavelength of the frequency for versatile use. 

The Neumann KMR 81 i is compact and light enough to be used on a camera for handheld shooting. Though the mic is specifically designed for film and TV applications, it also works well for recording individual musicians, orchestras, and more. The limited off-axis coloration keeps the sound consistent even if the subject is moving around. 

Most importantly, the KMR 81 i produces a high-quality, clear, warm sound. The 90-degree recording angle picks up just the right amount of sound. It offers switches to control a 200Hz low-cut filter and a -10dB pad to reduce traffic and wind noises. It also comes with a windscreen for even better results when outdoors. You’ll also get a leather carrying case and a one-year warranty.

Best mini: Rode VideoMicro II

Abby Ferguson

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Specs 

  • Weight: 1.4 ounces
  • Length: 3.1 inches
  • Frequency response: 20 Hz to 20 kHz

Pros

  • Very compact and lightweight
  • Affordable
  • Straightforward and easy to use
  • Excellent sound quality

Cons

  • Only supports 3.5mm analog output

The Rode VideoMicro II, is, as the name suggests, tiny. At only 3.1 inches long and weight 1.4 ounces, it’s smaller than just about everything out there. This small shotgun mic is ideal for beginners getting into filmmaking or vlogging, partly because of its compact size. It’s also very simple to use. You mount it to your camera’s hot shoe, plug in the 3.5mm TRS cable, and you are good to go. It can even connect to a smartphone or tablet should you want to.

The VideoMicro II is also reasonably priced, under $100. But, despite the budget-friendly price, it produces quality sound. It comes with both foam and furry windshields, which do an excellent job of filtering out background noise. And Rode’s built-in HELIX isolation mount system keeps noise from any knocks and bumps down to a minimum. 

The mic has no physical controls, so you are more limited than when using more expensive models. But it only draws a tiny bit of power from your camera, so you won’t have to cut recordings short to charge back up. The short form factor even makes it feasible to use on gimbals, making it an ideal microphone choice for run-and-gun videographers and vloggers.

Best budget: Audio-Technica AT897

Audio-Technica

SEE IT

Specs 

  • Weight: 5.11 ounces
  • Length: 10.98 inches
  • Frequency response: 20 Hz – 20 kHz

Pros

  • Inexpensive
  • 80 Hz low-cut switch
  • Lightweight
  • Battery and phantom powered

Cons

  • Susceptible to moisture
  • Slightly brittle sounding 

With microphones, you often get what you pay for. But Audio-Technica’s AT897 delivers high-quality results while still costing less than $250. Its wide 20-20,000 Hz frequency response, with a switchable roll-off at 80 Hz, allows the mic to capture very natural sound. That said, the response across all those frequencies could be flatter, and you can expect some brittleness in the higher end that you won’t find on more professional-grade mics. Off-axis sound rejection is good but not great.

The AT897 is built like a tank, and while I wouldn’t suggest tossing it onto concrete or driving over it with a truck, it’ll generally survive the mishaps you’re likely to encounter when recording on location or out in nature. However, it’s susceptible to moisture and high humidity, so keep an eye on the weather if you’re using it outdoors. 

A nice bonus: This mic can run off an AA battery, which is particularly handy when the budget doesn’t allow for recorders or cameras that supply phantom power—for instance, in a classroom. Despite some shortcomings, this is an excellent shotgun microphone for beginners who want to develop their technique, schools, or anyone operating under a tight budget while still wanting plenty of features and quality. 

Things to consider before buying the best shotgun mics

Microphones have polar, or response, patterns, which describe how they “hear” sound sources depending on where they’re placed. A shotgun microphone is a type of mic with a very narrow, front-facing response known as a “supercardioid” pattern. This means the mic mostly picks up sound from whatever you point it at while rejecting sound from the sides and, to a lesser extent, the back.

Frequency response

Frequency response is measured in Hertz (Hz) and describes how well the microphone captures sound at different frequencies. Shotgun microphones tend to have very wide, flat responses—that is, they pick up a range of frequencies more or less equally well—to better represent what the human ear can hear. They’re often tuned a bit to help emphasize dialogue and other mid-range frequencies. 

Condenser vs. dynamic microphones

There are two main types of microphones: condenser mics and dynamic mics. In very basic terms, microphones use diaphragms that vibrate when hit by sound waves. These vibrations generate electronic impulses that can be recorded or converted directly back into sound. Condenser mics have very thin diaphragms sensitive to subtle, quiet, nuanced sounds. But they’re more delicate and susceptible to heavy handling and moisture.

Dynamic mics, with their thicker diaphragms, aren’t as good with nuance but do very well when blasted with loud noises. They’re also robust and can survive a lot of abuse. (Singers usually use dynamic mics on stage; if you’ve ever been to a punk show, you’ve seen the damage they can withstand.) 

Because shotguns are meant to capture even whispered dialogue, they’re almost always condenser mics. Some mics—like those in Sennheiser’s MKH series—use RF condensers in their capsules versus AF condensers, which do a better job of resisting humidity. But it’s important to understand the options and even test a mic to ensure you get the right one for the job at hand.

Length

Shotgun mics come in various lengths, from a compact 3 inches or 4 inches to more than one-foot long. Consider how you’ll use the mic when deciding whether you want a compact one. If you’re mounting it on a camera, a smaller profile makes the mic lighter and much more maneuverable. Longer shotguns tend to have tighter polar patterns; they’re great when recording concerts or sporting events, and you want to minimize the overwhelming crowd noise. But put one on a camera, and you’re liable to poke someone’s eye out!   

Power

Like all condenser mics, shotguns require some power source. They usually rely on 48v phantom power delivered from a recording device, mixer, or camera. But some also have an option of using an AA battery, which can be a lifesaver if you find yourself in a situation where phantom power isn’t available. (For instance, some wireless rigs don’t deliver power themselves, so pick up and power up those rechargeable batteries.)

FAQs

Q: How do I choose a shotgun mic? 

When choosing a shotgun mic, look for one that suits the projects you’re likely to work on. Are you an indie filmmaker? A vlogger? Do you like to livestream content? Do you record music? Are you working indoors or outside? How controlled an environment will you be recording in? Also, consider your budget—spend enough to get a mic that will serve you well as your projects develop, but not one that completely empties your wallet or provides features you know you’ll never need. 

Q: How good are shotgun mics?

Shotgun mics are great if used correctly and for the right application—just like any mic! If you need to pick up specific sound sources, like an actor delivering dialogue or a guitarist playing on a street corner, shotgun mics are ideal because of the way they minimize surrounding (off-axis) noise.

Q: How much does a shotgun mic cost?

Shotgun mics cost anywhere from about $200 to $2,500. But you often get what you pay for, and lower-priced mics sometimes sacrifice sonic clarity and off-axis rejection or might not be built well enough to protect them from bangs and bumps. On the other hand, the highest-priced mics are designed for professionals in demanding situations, and many people won’t need to take advantage of all those mics offer. Many excellent shotgun mics can be found in the $300-$800 price range.

Q: Is a shotgun mic good for YouTube?

A shotgun mic is great for YouTube. Anything that captures audio clearly and helps you deliver your creative vision is a tool you want in your kit. 

Q: Can you use a shotgun mic to record music?

Yes, you can use a shotgun mic to record music. A good quality shotgun has a flat frequency response and directionality, making it very effective at capturing warm and subtle tones.   

Final thoughts on the best shotgun mics

If you’re shopping for a shotgun microphone, you’ve got a lot of options—that’s the good news. Manufacturers like Sennheiser and Rode make mics at different prices that all deliver excellent audio. The trick is figuring out which mic suits your needs best without accidentally overspending. It’s not easy—and that’s the bad news. Navigating all these microphones takes time and careful research. It also helps to use the mics before you buy one so you can tell from first-hand experience if it’s right for you.

That said, our own experience working with these mics professionally takes us back, time and again, to the classic Sennheiser MKH 416. It’s hard to beat the sound quality, which is simply excellent. But if you can’t quite afford one, Rode’s NTG3B, our pick for the best compact shotgun mic, is an excellent second choice. It sounds almost as good and has the same resistance to humidity. I’ve used both in professional settings and never had any complaints. 

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

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How to make hand sanitizer https://www.popsci.com/story/diy/diy-hand-sanitizer/ Wed, 22 Apr 2020 16:37:33 +0000 https://www.popsci.com/uncategorized/diy-hand-sanitizer/
Hand sanitizer bottle and hands.
Making your own hand sanitizer is easy. But if you want to fight COVID-19, no, you can't use vodka. Kelly Sikkema via Unsplash

We’ve got liquid and gel for all your germ-killing needs.

The post How to make hand sanitizer appeared first on Popular Science.

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Hand sanitizer bottle and hands.
Making your own hand sanitizer is easy. But if you want to fight COVID-19, no, you can't use vodka. Kelly Sikkema via Unsplash

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Most people probably haven’t thought much about how to make hand sanitizer. Stores sell it for cheap, in a variety of scents and styles, and it’s basically as good as it can be. But if you want to earn some DIY bragging rights, clean your paws using a particular scent, or prepare for a future health crisis, you can easily make your own with supplies you can find at a drugstore or may already have at home.

But before you start, there are a few things you should keep in mind before you craft homemade hand sanitizer. First, it’s crucial that you understand that proper hand washing will always be better than simply rubbing your digits with hand sanitizer. Using the right amount of alcohol-based disinfectant (3 milliliters) for 25 to 30 seconds is fine in a pinch, but soap, water, and a good scrub are the absolute best way to protect yourself against contagious diseases.

Knowing how to make hand sanitizer is useful if you ever find yourself in the middle of a health emergency like the COVID-19 pandemic. But these and other DIY recipes are only for extreme cases when hand washing is not an option and supplies are low. Professionals use these formulations in underserviced healthcare settings, and if at some point hand sanitizer is not available at local stores, you can use them too.

Lastly, your homemade hand sanitizer won’t last forever. The main active ingredient in the recipes below is isopropyl alcohol, a volatile compound that will evaporate over time and compromise the effectiveness of your hand sanitizer. When alcohol concentration drops below 60%, your hand sanitizer won’t be able to kill COVID-19 or influenza, for example. The shelf life of store-bought hand sanitizers can vary—the industry standard is three years, but it can go up to five. How long your DIY hand sanitizer lasts will depend on the type and size of the container you use and how often you open it, along with room temperature and humidity. Unfortunately, all of these factors make it hard to predict exactly how long your hand sanitizer will be good for, so proceed with caution. 

How to make hand sanitizer

There are two main formulas for homemade hand sanitizer: one, recommended by the World Health Organization, is closer to liquid than gel and is harder on your hands, while the other will be gentler on your skin and closely resembles the feel of store-bought hand sanitizer. Which one you make depends on your personal preference.

Stats

  • Time: literally 2 minutes
  • Estimated ingredient cost: $15 (makes 3.5 cups, or 15 of those little two-ounce bottles)
  • Difficulty: easy

Tools

Recipe No. 1: the WHO hand sanitizer formulation

Ingredients

The WHO has a comprehensive guide on how to make hand sanitizer—the only problem is that if you follow their instructions, you’ll end up with a lot of it. Like, exactly 2.6 gallons of it. If you want to make enough to last you, your family, and all your friends through a zombie apocalypse, you definitely can. But if you want to keep things on a smaller scale, we’ve adapted the measurements for you.

1. Pour the alcohol into a medium-sized container with a pouring spout. The percentages on the labels of isopropyl alcohol refer to the alcohol concentration in them. You’re dealing with almost pure alcohol if you’ve got 99.8%, whereas 70% means the bottle is only a little more than two-thirds alcohol, and the rest is water.

2. Add the hydrogen peroxide.

3. Add the glycerin and stir. This ingredient is thicker than both alcohol and hydrogen peroxide, so it’ll take some stirring to combine everything. You can use a clean spoon for this or, if your container has a lid, you can put that on and shake it well.

4. Measure and pour in the water. Measure a ¼-cup of distilled or boiled cold water and add it to your mix. Stir.

[Related: Is hand sanitizer bad for my microbiome?]

5. Sanitize your spray bottles and pour in your hand sanitizer. Spray some of your leftover alcohol into your bottles and let them sit until the alcohol has evaporated. Then pour in your sanitizer.

6. Label your bottles. Hand sanitizers pose a real risk of involuntary alcohol poisoning, especially among children, who were largely affected by it during the first months of the COVID-19 pandemic. You don’t want anyone to accidentally ingest your newly made hand sanitizer. Take the time to label your bottles with their contents and the date, and keep them away from unsupervised kids.

Recipe No. 2: hand sanitizer gel

Ingredients

1. Pour the alcohol into a medium container with a pouring spout. Some recipes online use vodka instead of isopropyl alcohol, but they’re not interchangeable. Most vodkas and other spirits don’t contain a high enough percentage of alcohol to be effective.

  • Warning: Using isopropyl alcohol diluted beyond 91% will result in a weaker hand sanitizer that doesn’t meet the CDC’s 60% benchmark for killing the COVID-19 virus and influenza.

2. Measure and pour the aloe vera gel. Alcohol can be hard on your skin, so using aloe is a good way to counteract that effect and keep your hands smooth. If you want to keep things natural, you can use aloe vera gel straight from the plant without worrying about it going bad—the alcohol will act as a preservative.

[Related: Five tips for taking care of your over-washed hands]

However, you will need to keep in mind that natural aloe gel is thicker than its store-bought counterpart and will affect the final product differently—it will make your hand sanitizer more sticky, which means you’ll need to rub your hands more times for it to fully absorb.

3. Add the essential oil. Tea tree oil is naturally antibacterial, so it makes sense to use it here. But if you’re not a fan of its smell, you can use another type of essential oil, like lavender, lemongrass, or eucalyptus.

4. Whisk. To fully mix all ingredients, stirring won’t be enough. Get a whisk and beat that hand sanitizer into a homogeneous gel.

5. Sanitize your spray bottles and pour in your hand sanitizer. Spray some of your leftover alcohol into your bottles and let them sit until the alcohol has evaporated. Pour in your sanitizer.

6. Label your containers. Hand sanitizers pose a real risk of involuntary alcohol poisoning, especially among children, who were largely affected by it during the first months of the COVID-19 pandemic. You don’t want anyone to accidentally ingest your newly made hand sanitizer. Take the time to label your bottles with their contents and the date, and keep them away from unsupervised kids.

Updated March 7, 2020, at 1 p.m.: This story has been updated to more accurately reflect which concentrations of alcohol will result in hand sanitizer that’s at least 60% alcohol.

Updated March 23, 2020, at 6 p.m.: This story has been updated to more accurately reflect the amount of water in the WHO formulation. The original story resulted in hand sanitizer that was 71% alcohol, and the updated version is now at 75%.

This post has been updated. It was originally published on March 5, 2020.

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The deadliest viruses in human history, from COVID to smallpox https://www.popsci.com/health/deadliest-viruses/ Tue, 30 May 2023 20:00:00 +0000 https://www.popsci.com/?p=543844
HIV, seen in red budding particles, is among the deadliest viruses.
HIV particles, in red and yellow, are budding from an infected cell in a electron micrograph. NIAID/NIH

Deadly viral pathogens include rabies, which is fatal without swift treatment, and the flu, which has a huge global toll.

The post The deadliest viruses in human history, from COVID to smallpox appeared first on Popular Science.

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HIV, seen in red budding particles, is among the deadliest viruses.
HIV particles, in red and yellow, are budding from an infected cell in a electron micrograph. NIAID/NIH

Over the first two years of the COVID-19 pandemic, the coronavirus directly or indirectly killed about 15 million people worldwide, according to estimates from the World Health Organization. In the United States, more people died in 2020 and 2021 than during the 1918 influenza pandemic, which was widely called the most deadly in recorded history. 

The word “deadly” certainly applies to the virus that causes COVID-19. And yet, epidemiologists hesitate to give SARS-CoV-2 the superlative of deadliest virus in human history. To them, the raw number of mortalities caused by a given virus doesn’t always paint the full picture of a pathogen’s danger—especially when comparing viral outbreaks across time.

Raw mortality numbers have to be taken in the context of the world’s total population, says Jennifer Nuzzo, professor of epidemiology and director of the Pandemic Center at Brown University School of Public Health. “A lot of people talk about how COVID deaths eclipsed what we saw in 1918,” she says. “It’s really important to remember that the population of 1918 was a fraction of what it is today.” In that context, the flu of 1918 rises back up in the ranks in terms of deadliness.

Defining the deadliest virus

Instead of just looking at tallied mortalities, epidemiologists use a metric called the “case fatality rate” or “case fatality ratio” as a measure of how likely a virus is to be lethal. Essentially, it’s the proportion of infected people who end up dying, and therefore represents the likelihood that an infection will end in death. 

Using the “case fatality rate” metric to determine what virus is the deadliest, rabies would likely come out on top. That’s because, if an infection becomes symptomatic, rabies is fatal to humans in more than 99 percent of cases. Globally, approximately 59,000 people die from rabies every year. Very few of those deaths—an average of two in the US—occur in the developed world because of rabies vaccines for household pets and swift medical interventions after bites.

But “a virus doesn’t have to have a very high case fatality ratio to cause a tremendous amount of death and disruption,” Nuzzo says. “It’s more about looking at the environments in which the viruses are spreading, and our social and human vulnerabilities to it.” 

A virus with a lower case fatality rate can kill more people if it’s highly transmissible, with a long period of time before severe or obvious symptoms set in. This allows an infected person to expose many others. That’s why SARS-CoV-2 caused such a rapid and devastating outbreak around the globe. It’s easily transmitted via airborne droplets, and doesn’t always or immediately cause severe illness. 

[Related: Can viruses be good for us?]

Globalization sped it along, too. “When a virus spreads at the pace of a human being walking, that’s very different than when you can hop on an airplane and be anywhere in the world in 36 hours,” Nuzzo says. 

During large outbreaks such as epidemics or pandemics, epidemiologists look at another metric, called excess deaths: how many more people died during a period of time than typically do over that same window. Excess deaths can account for other indirect ways that a virus causes death, Nuzzo says, such as patients who need critical care but can’t get it in overburdened hospitals.

Here’s how some of the most devastating viruses in human history tell different stories of how high a death toll can rise:

Influenza

The 1918 influenza pandemic still far and away ranks as the deadliest global outbreak of the 20th century. Thought to be caused by an H1N1 virus, it spread globally in 1918 and 1919. An estimated 500 million people were infected (approximately a third of the global population) and 50 million people died worldwide, about 675,000 of whom were in the United States, according to the Centers for Disease Control and Prevention. 

Without sophisticated testing and tracking, death toll estimates rely heavily on excess death calculations. Some suggest the true toll was closer to 17 million, while others set it much higher at 100 million. William Schaffner, professor of preventive medicine and professor of medicine in the division of infectious diseases at the Vanderbilt University School of Medicine, cautions against over-interpreting comparisons between the historic flu data and modern viral outbreaks.

[Related: Can you get diseases from bad bathroom smells?]

 “We are determining cases and even counting deaths with much more precision now than we did then,” he says. At the time, there were also no flu vaccines and no antibiotics to treat secondary bacterial infections, which likely drove the excess death toll higher.

In preparation for the deadly flu, mask-wearing women hold stretchers at backs of ambulances.
St. Louis Red Cross Motor Corps on duty in October 1918 during the influenza epidemic. Library of Congress

Today, the youngest and oldest people are most likely to die from influenza. But during the pandemic over 100 years ago, Schaffner says, deaths bore a different signature: mortality peaked among young and middle-aged adults, too. Why that happened is still unclear, he says, but it contributed to the historic toll of that pandemic.

Influenza continues to hold its place as one of the deadliest viruses, despite the availability of vaccines. Variants of the influenza virus have led to other pandemic-level events, such as the 2009 outbreak colloquially called the swine flu pandemic. But the virus is also endemic in our society, and infects an estimated 1 billion people globally every year, according to the World Health Organization. Of those cases, the WHO reported in 2019, somewhere between 290,000 to 650,000 result directly or indirectly in deaths. 

HIV/AIDS

The human immunodeficiency virus (HIV) has been an ongoing epidemic since the 1980s. The virus, which attacks the body’s immune system, can lead to acquired immunodeficiency syndrome (AIDS), leaving a person susceptible to other infections as well. 

An estimated 40.1 million people have died from AIDS-related illnesses since the start of the epidemic, according to the Joint United Nations Program on HIV and AIDS. That is nearly half of the number of people estimated to have become infected with HIV since the start of the epidemic, at an estimated 84.2 million. 

The case fatality rate of HIV/AIDS was historically quite high. Some estimates put it around 80 percent without treatment. But much has changed since the 1980s. Today, there are ways to manage HIV and mitigate the immunodeficiencies associated with an infection, and most patients are diagnosed sooner after an infection. In the United States, the rate of HIV-related deaths fell by nearly half from 2010 to 2017, according to the CDC. 

SARS-CoV-2/COVID-19

Death toll estimates for the COVID-19 pandemic are still difficult to come by. The WHO keeps an official tally of confirmed deaths due to COVID-19, which puts the death toll at just shy of 7 million globally. However, the actual toll is certainly much higher, especially given inconsistent reporting around the world. In fact, the WHO also estimated that over the course of 2020 and 2021 the virus caused 15 million deaths worldwide directly or indirectly. 

That excess deaths metric likely reached a much higher number by the time officials declared the public health emergency over in early May. The Omicron wave that swept around the globe in late 2021 and early 2022 saw one of the largest surges in cases of COVID-19 and, although the variant didn’t seem to be more deadly than previous variants, with millions of people infected, a high death toll in the hundreds of thousands was inevitable. 

Early in the pandemic, the case fatality rates calculated for SARS-Cov-2 varied considerably. Many estimates were likely higher than the true number, as researchers scrambled to devise tests for the virus and milder cases slipped through the cracks. In early 2020, estimates of the case fatality rate by country ranged as high as 25 percent or more. Since then, case fatality rates have dropped, and now, according to Johns Hopkins University, they are as high as 4.9 percent. In the US, the case fatality rate is 1.1 percent

Smallpox

“In its day, smallpox was thought to be one of the great pestilences of humankind,” Schaffner says. Smallpox likely wreaked havoc for millennia. Fourth-century writings describe a disease similar to smallpox, and some Egyptian mummies appear to have smallpox-like rashes. 

Mortalities continued to stack up into the 20th century, with an average of three out of every 10 people infected dying. The disease, which is caused by variola virus, is estimated to have killed more than 300 million people from 1900, until a global vaccination campaign halted its path of devastation in 1977. It was the first disease ever to be eradicated. 

[Related: The first honeybee vaccine could protect the entire hive, starting with the queen]

But it was the very thing that made it particularly fearsome that was its downfall, Schaffner says. “It created such a distinctive rash that people could identify it and fear it. And that was one of its Achilles heels,” he says. Because it was so easily identifiable, and spread so slowly, vaccinating the local population near an outbreak swiftly curtailed transmission. Such an approach, he says, was part of the vaccination strategy that eradicated the great pestilence. 

Other killer viruses

Another virus that is often cited as particularly deadly is Ebola. Approximately 34,600 people were infected with Ebola from 1976 to 2020, according to one count, and about 15,200 died. That virus carries an average case fatality rate of around 50 percent. But the chance of survival rises steeply if you have access to medical treatment, Nuzzo says. And because Ebola is typically spread through direct contact, not airborne transmission like SARS-CoV-2, overall case rates are lower. Marburg virus is similar to Ebola and also carries a high case fatality rate, which ranges from 24 to 90 percent. However, recorded cases number only in the 100s, so the raw number of deaths is quite low.

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Watch the US Navy launch an ocean glider from a helicopter https://www.popsci.com/technology/navy-deploys-slocum-glider-from-helicopter/ Tue, 30 May 2023 19:02:21 +0000 https://www.popsci.com/?p=544473
glider drops from navy helicopter
The test took place in March. Bobby Dixon / US Navy

The Slocum glider is a type of robot designed to gather information about the sea's conditions.

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glider drops from navy helicopter
The test took place in March. Bobby Dixon / US Navy

On March 15, the US Navy launched a torpedo-shaped robot into the Persian Gulf from the back of a helicopter. The robot was a Slocum glider, an uncrewed sensing tool that can collect data on ocean conditions below the surface. Dropping it from a helicopter was a proof of concept, a test towards expanding the array of vehicles that can put the robots into the water. As the US Navy seeks to know more about the waterways it patrols, distributing data collection tools can provide a more complete image of the ocean without straining the existing pool of sailors.

The US Navy helicopter, part of Helicopter Mine Countermeasures Squadron (HM) 15, delivered the glider by flying low and slow over the sea surface. The glider, held between railings facing seaward, slid forward, diving but not tumbling into the water. The setup enabled smooth entry into the water, keeping the robot from falling aft over teakettle.

“We are excited to be a part of another series of firsts! In this instance, the first launch from a helicopter and the first-ever successful glider deployment from an aircraft,” Thomas Altshuler, a senior VP at Teledyne, said in a release. While the test took place in March, it was only recently announced by both the Navy and Teledyne, makers of the Slocum glider. “Teledyne Marine​ takes pride in our continued innovation and support of the U.S. Navy as it expands the operational envelope of underwater gliders.”

This is what that entry looked like:

A second video, which appears to be recorded by the phone camera of one of the sailors standing next to the rail, offers a different angle on the descent. The mechanics of the rail mount are clearer, from the horseshoe-shaped brace holding the glider in place, to the mechanism of release. When the glider hits water, it makes a splash, big at the moment then imperceptible in the wake of the rotor wash on the ocean surface.

For this operation, Teledyne says the glider was outfitted with “Littoral Battlespace Sensing – Glider (LBS-G) mine countermeasures (MCM) sensors.” In plain language, that means sensors designed to work near the shore, and to collect information about the conditions of the sea where the Navy is operating. This data is used by both the Navy for informing day-to-day operation and by the Naval Oceanographic Office, for understanding ocean conditions and informing both present and future operations.

[Related: What it’s like to rescue someone at sea from a Coast Guard helicopter]

In addition to HM 15, the test was coordinated with the aforementioned Naval Oceanographic Office, which regularly uses glider robots to collect and share oceanographic data. The Slocum glider is electrically powered, with range and endurance dependent upon battery type. At a minimum, that means the glider can travel 217 miles over 15 days, powerlessly gliding at an average speed of a little over 1 mph. (Optional thruster power doubles the speed to 2 mph.) With the most extensive power, Teledyne boasts that the gliders can range over 8,000 miles under water, stay in operation for 18 months, and work from shallows of 13 feet to depths of 3,280 feet.

“Naval Meteorology and Oceanography Command directs and oversees more than 2,500 globally-distributed military and civilian personnel who collect, process, and exploit environmental information to assist Fleet and Joint Commanders in all warfare areas to make better decisions faster than the adversary,” notes the Navy description of the test.

Communicating that data from an underwater robot to the rest of the Navy is done through radio signals, satellite uplink, and acoustic communication, among other methods. These methods allow the glider to transmit data and receive commands from remote human operators. 

“The invention of gliders addressed a long-standing problem in physical oceanography: how do you measure changes in the ocean over long periods of time?” reads an Office of Navy Research history of the program. The Slocum gliders themselves date back to a concept floated in 1989, where speculative fiction imagined hundreds of autonomous floats surveying the ocean by 2021. The prototype glider was first developed in 1991, had sea trials in 1998, and today according to that report,the Naval Oceanographic Office alone operates more than 150 gliders.

This information is useful generally, as it builds a comprehensive picture of the vast seas on which fleets operate. It is also specifically useful, as listening for acoustics underwater can help detect other ships and submarines. Undersea mines, hidden from the surface, can be found through sensing the sea, and revealing their location protects Navy ships, sailors, and commercial ocean traffic, too.

Releasing the gliders from helicopters expands how and where these exploratory machines can start operations, hastening deployment for the undersea watchers. When oceans are battlefields, knowing the condition of the waters first can make all the difference.

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The best curved monitors in 2023 https://www.popsci.com/gear/best-curved-monitors/ Fri, 24 Jun 2022 13:00:00 +0000 https://www.popsci.com/?p=450439
The best curved monitors composited
Stan Horaczek

A curved screen can improve your PC setup’s ergonomics and enhance gaming immersion.

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The best curved monitors composited
Stan Horaczek

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Best overall The Samsung Odyssey G7 is an incredible valuable display with a bright QLED panel, deep 1000R curve, and elite gaming speed.
Samsung Odyssey G7
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The Samsung Odyssey G7 is an incredible valuable display with a bright QLED panel, deep 1000R curve, and elite gaming speed.

Best for gaming The Alienware AW3423DW brings the sharper contrast of an OLED display to PC gaming. Dell Alienware AW3423DW
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The Alienware AW3423DW brings the sharper contrast of an OLED display to PC gaming.

Best for work The Dell UltraSharp U3421WE gives you an ultrawide workspace to make you more productive. Dell UltraSharp U3421WE
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The Dell UltraSharp U3421WE gives you an ultrawide workspace to make you more productive.

Whether you’re gaming or taking on a big project at work, upgrading to a curved monitor can elevate your computing experience. While using one feels a bit different, and may not be for everyone, an increasing number of people swear by them. The graceful arc of a curved display draws you further into the experience, increasing your immersion and blocking out distractions. The best curved monitors feature all the impressive specs and features of any other display while bringing a few unique tricks all their own.

How we chose the best curved monitors

I’ve worked in gaming and tech journalism since 2013. During that time, I’ve evaluated a wide range of monitors, from affordable flat panels to luxurious curved ultrawides. Covering displays and computers for sites like IGN, Reviewed, and Tom’s Hardware, I’ve built a deep understanding of what makes a monitor great.

Our selections for the best curved monitors are the product of extensive testing and research. Beyond testing and reviewing many of these monitors, I took a deep look at the most important specs: screen size, resolution, refresh rate, response time, and the core features that separate a great display from a basic one. I also turned to reviews from experts and impressions from real customers to see how they stacked up in dedicated performance tests and real-world scenarios.

The best curved monitors: Reviews & Recommendations

Now that you have a good handle on the monitor-buying basics, let’s talk about the best curved monitors you can buy. Even with all the knowledge we’ve shared, finding the best curved monitor may still feel like a daunting task. Our picks, selected through testing and extensive research, are a great place to start (and end) your search.

Best overall: Samsung Odyssey G7

SAMSUNG

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Why it made the cut: The Samsung Odyssey G7 delivers a great picture and outstanding value.

Specs

  • Screen size: 27-inch
  • Curve: 1000R
  • Resolution: 2560×1440 
  • Panel type: QLED
  • Brightness/HDR: VESA DisplayHDR 600
  • Refresh rate: 240Hz
  • Response time: 1ms

Pros

  • Deep, immersive curve
  • Crisp 1440p resolution
  • An esports-grade 240Hz refresh rate
  • QLED panel ensures high brightness and contrast

Cons

  • 1000R curve may be too deep for some people
  • Expensive

The Samsung Odyssey G7 is a performance powerhouse that provides surprisingly incredible value. It isn’t cheap, but you’d be hard-pressed to find another curved monitor that brings so much value to the table. Its vivid, Quantum Dot-enhanced picture enables exceptional brightness and contrast, winning it a DisplayHDR 600 rating. Colors pop on this display, and you can make out more detail in the screen’s dark and bright areas.

The G7 is definitely a gaming-first display. Its deep 1000R curve covers more peripheral vision, enhancing your immersion. Pushing 1440p resolution at up to 240Hz, you’ll get a perfect pairing of crisp visuals and high frame rates. Motion blur will be less of an issue on the Odyssey, giving you the edge to one-up the competition.

There are bigger, brighter monitors on the market, including several from Samsung: the 32-inch Odyssey G7 Neo, which offers an incredible 2000 nits of peak brightness, the 4K-enabled 16:9 Samsung Odyssey G8, and, if you have a gaming desk with space for an ultrawide display, the Samsung Odyssey OLED G8. You can really level up that battlestation with this 34-inch 21:9 Ultra-WQHD screen supporting 0.03ms response times, 175Hz, FreeSync VRR support with G-SYNC compatibility, and DisplayHDR True Black 400 levels. The Neo G8 has more resolution (good for streaming content) and a higher refresh rate/lower lag for competitive gaming. In a dark environment, however, the OLED G8 offers amazing contrast with impossibly inky blacks and smoother motion handling, making it both perfect for productivity and very console-friendly.

Those are notable upgrades, but they come with much steeper price tags ($1,000 on average). For many players, the $500 Odyssey G7 is more than enough to allow systems to hit peak performance without overspending.

Best for gaming: Dell Alienware AW3423DW

Dell

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Buy it used or refurbished: eBay

Why it made the cut: The Alienware AW3423DW’s fast, color-rich OLED screen makes games look better than ever; it’s expensive but very impressive.

Specs

  • Screen size: 34.18-inch (Ultrawide)
  • Curve: 1800R
  • Resolution: 3440×1440 (21:9)
  • Panel type: QD-OLED
  • Brightness/HDR: 1000-nit peak brightness (DisplayHDR 400 True Black)
  • Refresh rate: 175Hz
  • Response time: 0.1ms

Pros

  • QD-OLED panel enables incredible contrast and sharpness
  • 1000-nits peak brightness
  • Quantum dots for rich, accurate colors
  • G-Sync Ultimate

Cons

  • Very expensive
  • Doesn’t work well with PS5
  • No HDMI 2.1 ports

The Alienware AW3423DW is a rare curved display indeed. It features a Quantum Dot-enhanced OLED panel. Organic Light-Emitting Diode (OLED) displays feature “self-emitting” backlighting, where each pixel is individually backlit and independently controlled. This allows for incredible contrast, including “true” blacks. Standard OLED screens are known for lacking the brightness of conventional displays, but Quantum Dot technology enhances the screen’s inherent brightness, allowing the AW3423DW to hit an HDR-bright 1000 nits. It only achieves that maximum brightness in small spots on the monitor but is still more than capable of generating quality HDR gameplay.

You won’t have to worry about artifacts dragging down your gaming experience with the AW3423DW. With a ridiculously fast 0.1ms response time, ghosting just isn’t an issue for this display. A 175Hz refresh rate and Nvidia’s G-Sync Ultimate certification ensure excellent picture quality without screen tearing.

It isn’t perfect, though. The AW3423DW has a small number of flaws, particularly for console players who’d pair it with a PlayStation 5. It lacks HDMI 2.1, for example, so it can’t play games in 4K at 120Hz over HDMI cable. It also can’t downscale 4K content, so the PS5 can only run in 1080p on the monitor. (Luckily, there are monitors particularly well-suited to PS5.)

The Alienware AW3423DW is one of a few OLED gaming monitors in 2023. As a result, the distinctive, high-performance panel comes with a very steep price tag. If you’re a PC player who wants to see the sharpest possible picture on a monitor, though, it is worth it.

Best for work: Dell UltraSharp U3421WE

Dell

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Buy it used or refurbished: eBay

Why it made the cut: The Dell Ultrasharp U3421WE can replace multiple monitors and comes with productivity-enhancing features

Specs

  • Screen size: 34.1-inch (Ultrawide)
  • Curve: 1900R
  • Resolution: 3440×1440 (21:9)
  • Panel type: IPS
  • Brightness/HDR: 300 nits
  • Refresh rate: 60Hz
  • Response time: 8ms

Pros

  • Connects via USB-C
  • Built-in KVM lets you switch between two PCs with one mouse and keyboard
  • Useful software quickly divides screen space
  • Remembers window positions between uses

Cons

  • Expensive
  • Low brightness

Looking to replace your multi-monitor setup for work with a single ultrawide monitor? The 34-inch Dell Ultrasharp U3421WE is as tall as a standard 27-inch monitor and provides roughly eight inches of extra width on either side, so you have plenty of space to work. It also features some productivity-enhancing software that can partition that space into 38 different configurations for up to five windows. You’ll be able to see everything you need to work quickly and efficiently. When you’re done for the day, the software can re-open those windows, allowing you to pick up right where you left off. 

It isn’t uncommon for monitors to feature a couple extra USB ports for your peripherals, but the U3421WE not only connects via USB-C but it also doubles as a bona fide USB-C hub. It features two USB-C ports, one of which empowers you to connect and charge a laptop. There are also a whopping five USB 3.0 ports (one upstream and four downstream), to connect all of your peripherals and transfer large files. There’s even an Ethernet port to connect to your office’s network. 

It may not be quite as wide as two 27-inch monitors, but the Dell Ultrasharp U3421WE makes a strong case for optimizing your home office with a curved ultrawide display.

Best 4K: Gigabyte M32UC

Gigabyte

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Why it made the cut: The Gigabyte M32UC is a big screen with a crisp 4K picture and features to spare.

Specs

  • Screen size: 31.5-inch 
  • Curve: 1500R
  • Resolution: 3840×2160 (4K)
  • Panel type: SuperSpeed VA
  • Brightness/HDR: DisplayHDR 400
  • Refresh rate: 160Hz
  • Response time: 1ms 

Pros

  • Crisp 4K visuals in a large viewing area
  • Fast refresh rate
  • Great color coverage
  • Built-in KVM

Cons

  • Limited HDR performance
  • Minor ghosting without overdrive

Curved 4K monitors usually get expensive quickly, and the Gigabyte M32UC balances performance, features, and price better than most displays out there. It isn’t cheap by any stretch, but you get a color-rich gaming display with a ton of great features in return. You may have to adjust a couple of settings to make the most of it, but once you do, you’ll see that it’s a hidden gem among ultrawide gaming monitors.

SuperSpeed VA panel. Unlike traditional VA panels, the M32UC’s SuperSpeed VA panel gives it an unexpectedly low 1ms response time. It’s also fast, with a 160Hz refresh rate, which is high for a 4K display. With 93% DCI-P3 wide color gamut and 123% sRGB, it offers incredible color depth and accuracy, which is great for creatives. If you’d like to connect to a second PC for streaming or home office use, it also features a built-in KVM to swap your peripherals between devices quickly. The monitor also features a full suite of competitive gaming features, like a “Black Equalizer” that helps you peek into shadows, and an FPS monitor that can overlay on any game.

There are some important trade-offs with the M32UC that you should know before you buy in. First, with 8-bit color and only 400 nits of brightness, it can’t really handle HDR gameplay. Some users have also reported minor ghosting with Overdrive disabled, but that’s a quick fix within its settings menu. Even with these shortcomings, the M32UC is an outstanding choice if you’re shopping for a 4K monitor with an immersive curve.

Best ultrawide: LG UltraGear 34GP950G-B

Buy it used or refurbished: eBay

Why it made the cut: The LG UltraGear 34GP950G-B doesn’t come cheap, but its spacious Nano IPS screen is a joy to behold.

Specs

  • Screen size: 34-inch (Ultrawide)
  • Curve: 1900R
  • Resolution: 3440×1440 (21:9)
  • Panel type: Nano IPS
  • Brightness/HDR: DisplayHDR 600
  • Refresh rate: 180Hz 
  • Response time: 1ms

Pros

  • 10-bit color and DisplayHDR 600 certification
  • Rapid refresh rate adds smoothness to games
  • G-Sync Ultimate certified (FreeSync also supported)

Cons

  • Very expensive
  • Low IPS contrast

Gamers who have taken the leap already know: A great ultrawide monitor can take your gaming experience to the next level. That’s certainly the case with the expansive LG UltraGear 34GP950G-B, which delivers a crisp 3440×1440 picture empowered by LG’s Nano IPS panel. A proprietary LG display technology, Nano IPS displays feature a coating of nanoparticles on the backlight that expand their color gamut to an incredibly vibrant 98% of the DCI-P3 color space, or roughly 135% of sRGB. 

Somehow, professional-grade color accuracy and gaming-grade speed go hand-in-hand. LG quotes a 1ms response time on its “faster” preset, dramatically reducing the chance for visible ghosting. Meanwhile, its perfectly respectable 144Hz refresh rate can be overclocked to hit an impressive 180Hz for competitive play. It’s also Nvidia G-Sync Ultimate certified so you can count on fluid gameplay without a hint of screen tearing.

The UltraGear 34GP950G-B is certified by VESA for DisplayHDR 600 high dynamic range. It has a higher peak brightness of 600 nits and true 10-bit color so that you can make out more detail in the shadows and highlights. Its HDR tech comes with a local dimming feature, but critics found it to be too distracting to actually use. Since it also uses an IPS panel, contrast levels are also low, which makes blacks look dark gray in dark rooms. Even with local dimming turned off, there’s little room to argue with how good this monitor truly is.

Best budget: AOC G2 Series C27G2Z

AOC

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Buy it used or refurbished: eBay

Why it made the cut: The AOC G2 Series C27G2Z offers a lot for little. It costs less than $250 but still delivers strong performance.

Specs

  • Screen size: 27-inch
  • Curve: 1500R
  • Resolution: 1920×1080
  • Panel type: VA
  • Brightness/HDR: 250 nits 
  • Refresh rate: 240Hz
  • Response time: 0.5ms

Pros

  • Large screen
  • 240Hz refresh rate 
  • Good VA contrast
  • Good color coverage

Cons

  • Low brightness
  • No HDR
  • Low pixel density

If you’re on a limited budget, the AOC G2 Series C27G2Z is easily one of best curved monitors for under $300. It offers a handful of key features that make it an incredible value at a price point where you rarely find any. Its 27-inch screen is large enough to make good use of its 1500R curve, taking up more of your field of view and drawing you further into your entertainment experiences.

Now, a 27-inch, 1080p screen stretches its pixels a bit thin, but not dramatically. If you’d prefer to go smaller to maintain the screen’s sharpness, the 24-inch, 165Hz AOC C24G1A is our favorite curved gaming monitor under $200.

The C27G2Z is also quite a capable gaming monitor. It features a rapid 240Hz refresh rate—fast enough for competitive esports. Response time is also excellent at 0.5ms in its fastest mode, but you should plan on turning this down a touch for the best image quality—but with 0.5ms to start, there’s responsiveness to spare. Color coverage is also impressive at 90% of the DCI-P3 color space so that hues will look deeper and more saturated.

Unfortunately, the C27G2Z scrapes the bottom of the barrel with peak brightness and has a luminance of only 250 nits. That’s fine for most games, but you’ll want to position it away from direct sunlight. HDR is also out of the question, but these are fair trade-offs considering its price.

Things to consider before buying a curved monitor

Once a niche offshoot of conventional PC displays, the curved monitor has become an increasingly popular gaming and office work option. Going for a curved monitor adds a couple of extra specs to the long list of considerations you want to keep in mind when buying any monitor. We’ll walk you through the basics, so you can make your own decision when you’re ready to buy your next monitor.

Setting the curve

The big difference between picking a curved display and a standard flat panel is the curve itself. Just like the size of the monitor, the depth of the display’s arc varies from model to model.

The arc of a curved display is measured using the distance from the outer edge of the screen to its center. That number, measured in millimeters, is expressed as the monitor’s Radius (R) and indicates the recommended viewing distance to fully experience that curve’s benefits. The lower the radius, the deeper the curve will be. The deeper the curve, the more immersive your viewing experience will feel.

As with other specs, there is a range of possible curvatures ranging from 3000R to 1800R, all the way down to 1000R. Most curved monitors tend to fall between 1800R and 1500R, as large shallow curves typically require larger screen sizes than is typical for computer monitors. These curvatures range from a gentle bend to minimize how often you twist your neck to a noticeable curve that can enhance the immersive qualities of first-person games. Some gaming monitors drop down to 1000R. As this excellent explainer from Viewsonic describes, 1000R is the same curve as the human eye and should theoretically feel most “correct,” though such a deep curve can also be the hardest to adapt to.

Curved monitors are an acquired taste. It’s hard to know whether you’ll like a curved monitor, or what curve arc you’ll prefer without seeing them in person. Pictures just can’t replace the experience of sitting before one and seeing what each curve feels like for yourself. We recommend stopping by the electronics section of your retailer to see for yourself. If that’s not possible, be sure to buy from a retailer with a friendly return and exchange process.

Resolution

Beyond the curve’s arc, there’s no major difference between picking a curved monitor and any other. There are three core specs that we look at first when picking any PC display: resolution, screen size, and refresh rate.

Resolution refers to how many pixels your display uses to generate an image. All other things being equal, a higher resolution enables a sharper, more detailed image. Manufacturers currently stick to three primary resolutions for all widescreen (16:9) monitors: The baseline is 1920 x 1080 pixels, more commonly known as 1080p. The middle option, which we frequently recommend for gaming, is 2560 x 1440 pixels (you may see manufacturers call this 1440p, or QHD). Lastly, you have 3840 x 2160 pixels, also known as 4K. Unlike TVs, where 4K has become the standard, 4K monitors are still luxury and usually expensive.

If you plan on using your monitor for gaming, remember that higher resolutions require more powerful hardware to run well. If you’re a gamer but aren’t sure what resolution will work best for you, download and run a selection of the best benchmarks to grasp your system’s performance better.

Screen size

Curved displays aim to take up more of your peripheral vision so, unlike conventional widescreen monitors, we recommend going with the largest display that feels comfortable for you.

That recommendation comes with a caveat: There is a correlation between screen size and resolution. Larger displays need more pixels to achieve the same level of sharpness as their smaller counterparts. So, while a larger screen will enhance the benefits of using a curved display,  we only recommend you do so if you can also afford to scale up to 1440p or 4K for a screen above 27 inches.

With curved displays in particular, it also makes sense to consider whether you’d be interested in the standard, 16:9 widescreen aspect ratio, or a 21:9 ultrawide monitor. Ultrawide monitors extend the horizontal viewing area without making the display taller than a traditional display, which pushes the edges of the screen closer to your peripheral vision. Since curved displays work best when they extend to the outer edges of your field of view, the ultrawide form factor enhances the benefits of a curved panel. Pairing the two unconventional form factors often leads to a more expensive display, but a large curved ultrawide creates enough screen space to replace two monitors in most setups. It’s expensive, but a unique pleasure.

Refresh rate

For gaming, refresh rate often feels just as important as screen size and resolution. Refresh rate, measured in hertz (Hz), refers to how many times the screen updates the image on screen each second. Productivity monitors usually stick to basic 60Hz-75Hz, since smooth animation isn’t considered a priority. For gaming, however, a higher refresh rate allows games to run at a higher frame rate, making them look smoother and reducing motion blur. 

In general, we look for gaming monitors with a 144Hz refresh rate or higher. For office work, a little bump to refresh rate is a nice luxury, but not a crucial feature.

Panel type

The physical screen panel can impact a monitor’s color accuracy, contrast, and responsiveness. Aside from a few exceptions—some of which you’ll see on this list—monitors rely on one of three panel types:

In-Plane Switching, or IPS, panels have the best colors and widest viewing angles of the three types. Because of this, they have become a staple in the creative industries and are a popular choice for digital artists. At the same time, IPS panels typically have slower response times and low contrast.

Twisted Nematic, or TN, panels are traditionally regarded as the “fastest” monitor panels because they generally introduce less input lag. Their high performance comes at the expense of color accuracy and viewing angles, so images may not look as vivid as they would on a VA or IPS panel. Manufacturers have closed the gap in response time between TN panels and the others, so you really only see them in very cheap displays, or esports monitors with extremely high refresh rates.

Vertical Alignment, or VA, panels are the middle ground between IPS and TN, offering a balance between deep color and high speed. VA panels also benefit from superior contrast. While a great IPS panel may have a 1000:1 contrast ratio, many VA panels triple that and come in at 3000:1. Blacks are typically much darker on VA panels and are a better fit for use in low-light environments. 

While panel type impacts your monitor’s picture, the impact of using one panel type vs. another is usually quite small. They are a general indication of how a monitor may perform, but the nuances of a monitor’s color depth are usually best judged with the naked eye. (Or, if you’re a creative pro, using a colorimeter.)

HDR and brightness

High Dynamic Range (HDR) is one of the most popular display standards available today. In a nutshell, HDR content leverages new display technologies to display a much wider range of colors and brightness levels, capturing more vivid colors and enabling your monitor to depict a wider range of light and shadow in a single image. 

Judging whether a monitor supports HDR content or not is a surprisingly contentious issue. To really see HDR as intended, your monitor needs to be capable of getting very bright, so it can show both high- and low-light situations. Many PC monitors technically can serve HDR content, but can’t get bright enough to properly display it. For most PC monitors—32 inches or smaller—we look for a maximum brightness of 600 or higher. On larger screens, including TVs, you really want 1000 nits or more. Monitors that support HDR, but fail to reach those marks will appear brighter in HDR mode, but will not change how an image is lit. HDR also requires advanced color depth, so be sure the display you’re looking at also supports 10-bit color or higher. 

HDR-enabled monitors make it easy to check their maximum brightness, as they feature a DisplayHDR certification from the Video Electronics Standards Association, commonly known as VESA. The DisplayHDR rating system includes the monitor’s maximum brightness as part of its rating—which ranges from HDR400 (400 nits) to HDR1400 (1400 nits).

FAQs

Q: Are curved monitors actually better?

Many users believe they can be, but it really comes down to personal taste. There are two reasons for using a curved monitor. First, when sitting the proper distance from the screen, a curved display can minimize the number of times you turn your head, thus reducing neck strain.

Second, gamers may appreciate that the screen takes up more of your field of view, immersing you into the on-screen action. It feels especially impactful in first-person experiences, where a curved ultrawide screen may allow you to use your peripheral vision.

In both cases, the impact will feel substantial to some, and insignificant to others. For the right person, though, it makes for a substantial upgrade.

Q: What are the pros and cons of a curved monitor?

The biggest benefit that curved monitors offer is their immersive viewing experience. The arc of the screen takes up more of your field of view and adds depth that flat monitors can’t provide. When properly positioned, you can see and do more than is possible with a single normal monitor.

There are some important cons that you should consider before buying one for yourself. Curved monitors tend to be larger and take up more space on your desk, so your desk area will likely feel more cramped than if you were using a normal flat panel. This is especially true if you opt for an ultrawide curved display. A curved screen also naturally reduces viewing angles, so they’re not great for when you need to share your screen. Gauging whether you’ll like a certain curve can also be difficult without actually experiencing it for yourself, so if you can’t try before you buy, you’ll need to be prepared to return it, which can be a bigger chore due to the often large, unwieldy box.

Q: Can you have two curved monitors?

Technically you can use two curved monitors side-by-side, but we wouldn’t recommend it.

Using two curved monitors effectively undoes the ergonomic benefits of the curved panel: When sitting at the proper distance, centered, in front of a curved monitor, you shouldn’t have to twist your neck to take in the full screen. 

With two curved monitors, you’ll need to turn and re-center every time you switch. On top of that, lining up the arc of two curved displays puts a bezel to be in the center of your viewing area. It’s possible to use a second curved monitor at an angle, or positioned above your first (if you don’t mind craning your neck), but in general, it is more difficult and less immersive to use two curved displays.

Instead of using two curved displays, we’d recommend using a second flat panel monitor off to the side, or upgrading to a curved ultrawide display, which should give you a similar amount of screen real estate. If space isn’t a concern, it’s also possible to use three curved monitors to create a “u” for an immensely immersive viewing experience.

Final thoughts on the best curved monitors

Curved monitors are more popular than ever before. They provide a comfortable, immersive experience that enhances games and productivity. With the market for curved monitors expanding, there are options at any price point now, so if you’ve tried one and want to make the jump, there’s an option for every budget.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

The post The best curved monitors in 2023 appeared first on Popular Science.

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Snorkeler pries crocodile’s jaws off his head to survive attack https://www.popsci.com/environment/australia-crocodile-attack-jaws/ Tue, 30 May 2023 17:00:00 +0000 https://www.popsci.com/?p=544388
A saltwater crocodile with its mouth wide open.
"Salties" can grow up to 19 feet long and weigh up to 2,000 pounds. Deposit Photos

Surfer and diver Marcus McGowan said he was 'simply in the wrong place, at the wrong time.'

The post Snorkeler pries crocodile’s jaws off his head to survive attack appeared first on Popular Science.

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A saltwater crocodile with its mouth wide open.
"Salties" can grow up to 19 feet long and weigh up to 2,000 pounds. Deposit Photos

On May 27, an Australian man snorkeling off of the coast of North Queensland survived an attack from a saltwater crocodile—by prying the reptile’s jaws off of its head. Australia’s reptilian saltwater giants have the highest bite force of any animal on Earth at 3,700 pounds.

McGowan was snorkeling with his wife and some friends near the Charles Hardy Islands, about 25 miles off the coast of Cape York on the day of the attack.

[Related: Saltwater crocodiles are eating a lot of feral hogs in Australia.]

“I was attacked from behind by a saltwater crocodile which got its jaws around my head. I thought it was a shark but when I reached up I realized it was a crocodile. I was able to lever its jaws open just far enough to get my head out,” McGowan said in a statement released by the Queensland Government’s hospital service.

According to McGowan, the crocodile attempted to attack a second time, but he managed to push it away with his right hand that had already been bitten by the reptile. McGowan was transported to Haggerstone Island about 45 minutes away, before going to Cairns Hospital. He suffered cuts and puncture wounds to his head and hands and is currently recovering from his injuries.

The area surrounding Haggerstone Island is known as “croc country,” according to the Queensland’s Department of Environment and Science. The department urges visitors to practice “crocwise behavior,” such as staying away from the water’s edge, properly disposing food, and keeping pets on a leash. The department warned that crocodiles could be in all of the waterways in the region and that people  in smaller vessels like kayaks, standing close to the water’s edge, or  wading while fishing are at a greater risk of a croc attack. Queensland’s science department is investigating this most recent incident, stressing the importance of reporting crocodile sightings and incidents in a timely manner.

There have been at least 44 occasions of crocodile attacks on humans in the area since 1985. In February, a non-fatal attack occurred off the Cape York Peninsula, where another man was able to free himself from the jaws of a crocodile. 

[Related: This small crocodile’s giant ancestors likely preyed on early humans.]

Billy Collett, the operations manager at Australia Reptile Park told The Guardian that those who escape crocodile attacks usually frighten the reptiles away. “Crocodiles are the hardest-biting animal on the planet. But when people do fight back, they seem to let go,” he said. “[McGowan] probably scared the croc which realized it grabbed something too big to handle.”

According to the Australia Zoo, the home of famed crocodile advocate Steve Irwin, saltwater crocodiles can grow up to 19 feet long and weigh up to 2,000 pounds. They can swim up over 500 miles per day, which can make them difficult to track. Locals affectionately call the reptiles “salties” and they are more commonly found in Australia’s warmer northern regions. Australia’s federal government estimates that there are about 100,000 saltwater crocodiles in the northern parts of the country.

“I live on the Gold Coast and am a keen surfer and diver, and understand that when you enter the marine environment, you are entering territory that belongs to potentially dangerous animals, such as sharks and crocodiles,” McGowan said in his statement.“I was simply in the wrong place, at the wrong time.” 

The post Snorkeler pries crocodile’s jaws off his head to survive attack appeared first on Popular Science.

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A robot gardener outperformed human horticulturalists in one vital area https://www.popsci.com/technology/alphagarden-ai-robot-farming/ Tue, 30 May 2023 16:00:00 +0000 https://www.popsci.com/?p=544349
Gardener harvesting beets from ground.
AlphaGarden used as much as 44 percent less water than its human counterparts. Deposit Photos

UC Berkeley researchers claim their robotic farmer passes the green thumb Turing Test.

The post A robot gardener outperformed human horticulturalists in one vital area appeared first on Popular Science.

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Gardener harvesting beets from ground.
AlphaGarden used as much as 44 percent less water than its human counterparts. Deposit Photos

Even after all that quarantine hobby honing, gardening can still be an uphill battle for those lacking a green thumb—but a little help from robotic friends apparently goes a long way. Recently, UC Berkeley unveiled AlphaGarden, a high-tech, AI-assisted plant ecosystem reportedly capable of cultivating a polycultural garden at least as well as its human counterparts. And in one particular, consequential metric, AlphaGarden actually excelled.

As detailed by IEEE Spectrum over the weekend, UC Berkeley’s gardening plot combined a commercial robotic gantry farming setup with AlphaGardenSim, an AI program developed in-house by utilizing a high-resolution camera alongside soil moisture sensors. Additionally, the developers included automated drip irrigation, pruning, and even seed planting. AlphaGarden (unfortunately) doesn’t feature a fleet of cute, tiny farm bots scuttling around its produce; instead, the system resembles a small crane installation capable of moving above and tending to the garden bed.

[Related: How to keep your houseplants from dying this summer.]

As an added challenge, AlphaGarden was a polyculture creation, meaning it contained a variety of crops like turnips, arugula, lettuce, cilantro, kale, and other plants. Polyculture gardens reflect nature much more accurately, and benefit from better soil health, pest resilience, and fewer fertilization requirements. At the same time, they are often much more labor-intensive given the myriad plant needs, growth rates, and other such issues when compared to a monoculture yield.

To test out AlphaGarden’s capabilities compared with humans, researchers simply built two plots and planted the same seeds in both of them. Over the next 60 days, AlphaGarden was largely left to its own literal and figurative devices, while professional horticulturalists did the same. Afterwards, UC Berkeley repeated the same growth cycle, but this time allowed AlphaGarden to give its slower-growing plants an earlier start.

According to researchers, the results from the two cycles  “suggest that the automated AlphaGarden performs comparably to professional horticulturalists in terms of coverage and diversity.” While that might not be too surprising given all the recent, impressive AI advancements, there was one aspect that AlphaGarden unequivocally outperformed its human farmer controls—over the two test periods, the robotic system reduced water consumption by as much as a whopping 44 percent. As IEEE Spectrum explained, that translates to several hundred liters less after the two month period.

[Related: Quick and dirty tips to make sure your plants love the soil they’re in.]

Although researchers claim “AlphaGarden has thus passed the Turing Test for gardening,” referencing the much-debated marker for robotic intelligence and sentience, there are a few caveats here. For one, these commercial gantry systems remain cost prohibitive for most people (the cheapest one looks to be about $3,000), and more research is needed to further optimize its artificial light sources and water usage. There’s also the question of scalability and customization, as different gardens have different shapes, sizes, and needs.

Still, in an era of increasingly dire water worries, it’s nice to see developers creating novel ways to reduce water consumption for one of the planet’s thirstiest industries.

The post A robot gardener outperformed human horticulturalists in one vital area appeared first on Popular Science.

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The best computer desks of 2023 https://www.popsci.com/reviews/best-computer-desk/ Fri, 30 Jul 2021 13:00:00 +0000 https://www.popsci.com/?p=384870
The best computer desks of 2023
Brandt Ranj / Popular Science

Stop using the kitchen table as your workstation and add a sturdy and stylish desk to your home office.

The post The best computer desks of 2023 appeared first on Popular Science.

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The best computer desks of 2023
Brandt Ranj / Popular Science

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

Best overall Walker Edison Modern Industrial Computer Gaming Desk Walker Edison Modern Computer Gaming Desk
SEE IT

Use this versatile model for computer work, writing, or gaming.

Best for two people Tribesigns Double Computer Desk with Printer Shelf Tribesigns Double Computer Desk with Printer Shelf
SEE IT

Designed to allow the room and privacy for two people to share a workspace.

Best budget The Cubiker Computer Desk is the best budget computer desk. Cubiker Computer Desk
SEE IT

This affordable desk still comes with plenty of storage for its size.

A computer desk is more than just a coffee table and some extension cords. It’s a dedicated space for the computer, and it’s the literal foundation for all your work and online play. Fortunately, computer desks have come a long way since folding card tables and particleboard eyesores, with models that bend and shape to your specific needs. Finding a computer desk with useful options but not add-on gimmicks and unnecessary flourishes is important. It should be nimble enough to handle your tasks and sturdy enough to support your workload. And, most importantly, it should make you happy and excited to get stuff done. You can easily get overwhelmed with choices or discouraged by high prices. Be strong. You’ll find plenty to pick from as you scroll through our recommendations for the best computer desks below.

How we chose the best computer desks

I’m a writer and editor with more than 15 years of experience who has done extensive product reviewing. In compiling our recommendations for the best computer desks, we considered options from dozens of brands. We prioritized computer desks that provide good value for the money and serve a wide range of needs.

Our desk recommendations cover couples sharing home office space, gamers looking for a rad home for their battlestation, creatives who use two big monitors, and people with little floor space or money for a desk. We also considered the materials, durability, versatility, and storage space of the available options.

The best computer desks: Reviews & Recommendations

Comfort, efficiency, and style should combine when picking the most important piece of office furniture—next to an ergonomic office chair and a dependable coffee maker. Corner desks, adjustable desks, standing desks, portable desks, ergonomic desks, folding desks, dual monitor desks—there’s a desk for every job and every computer.

Best overall: Walker Edison Modern Computer Gaming Desk

Walker Edison

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Why it made the cut: This industrial-looking desk will work well in a home office or for gamers. It comes with a drawer and shelves for storage, plus a USB port and AC plug-in for additional power.

Specs

  • Material: Driftwood and metal 
  • Dimensions: 23.5 inches D x 48.12 inches W x 30 inches H
  • Storage: Drawer and shelves

Pros

  • Durable design
  • Provides storage
  • Allow for plug-ins

Cons

  • Doesn’t provide adjustability for standing

Thanks to the handy shelves, plugs, and ports, the Walker Edison Modern Computer Gaming Desk is more useful than a standard table desk. A simple pull-out drawer provides enough space for your supplies, and the open shelves prevent gadgets, cameras, paperwork, and other items from getting lost in a dark, dingy filing cabinet. If you’re looking for a nice computer desk, everything is open and inviting, yet built to withstand even the hardest typers or heaviest lunches.  

Best adjustable: Flexispot Kana Pro Bamboo Standing Desk

Flexispot

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Why it made the cut: This beautiful bamboo desk is durable, comes in a variety of shapes and dimensions, and comes with safety features like a child lock to make it safe for the home office.

Specs

  • Material: Bamboo
  • Dimensions: Rectangular or curved, from 48 inches x 24 inches to 78 inches x 30 inches 
  • Storage: None

Pros

  • Customizable sizes
  • Eco-friendly material
  • Safety features for working at home

Cons

  • Expensive
  • No storage space

You shouldn’t have to choose between standing and sitting desks. Get the best of both worlds with the Flexisport Kana Pro. This durable model comes in rectangular and curved shapes with various dimensions, so you can pick the size you need. Made of long-lasting bamboo that’s finished with a scratch- and water-resistant lacquer, this standing desk’s frame comes in white, black, or gray and is also available with casters for portability. 

This modern desk mechanically adjusts between 23.6 inches and 49.2 inches, so you can easily alternate between sitting and standing. Safety features include anti-collision technology and a child lock that make it safe for home use. And a cable management system keeps your cords organized and your workstation tidy. That said, the desk is somewhat expensive and has no dedicated storage space beyond the desktop.

Best for two people: Tribesigns Double Computer Desk with Printer Shelf

Tribesigns

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Why it made the cut: The desk is designed to make the most of a home office for two, with space for a printer dividing two substantial desks. 

Specs

  • Material: Engineered wood
  • Dimensions: 19.7 inches D x 19.69 inches W x 29.5 inches H
  • Storage: Stand for printer and two shelves underneath

Pros

  • Ample workspace for two people
  • Room for a printer built-in
  • Clean design

Cons

  • Isn’t adjustable for standing

Share the space, but not the frustration with this two-person computer desk from Tribesigns. The inexpensive dual-desk gives you the surface area needed to get things done with the privacy needed to focus. A printer shelf sits between each workstation, making you feel like you’re in your own little office. And with accessories like printers and scanners easy to reach for both workers, you won’t be interrupted with, “Can you hand me that?” Add a few plants or books for more privacy. Perhaps best of all, the simple, understated style is less likely to cause fights over design when shopping for furniture. This is the best desk for storage on our list.

Best for small spaces: Prepac Wall-Mounted Floating Desk

Prepac

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Why it made the cut: If space is at a premium, this wall-mounted floating desk allows you to make the most of your wall and provides some storage to boot. 

Specs

  • Material: Composite wood
  • Dimensions: 19.75 inches D x 42.25 inches W x 39.5 inches H
  • Storage: Small shelves 

Pros

  • Solution for a small space
  • Attractive espresso color
  • Decent storage for such a small desk

Cons

  • Assembly and wall mounting make take some time

It’s not for everyone or all types of work, but the wall-mounted Prepac desk provides a flat place to rest a laptop and get to work. The accompanying (removable) shelves can hold supplies and cables, and the tabletop is just big enough for a laptop and mouse. If you don’t want a big piece of furniture hogging up valuable space or need to add a workspace to a cramped living space quickly, this small computer desk is the most efficient workstation available. You will need to mount this on the wall, which adds another step to the already annoying task of desk assembly. But once put together, the desk is surprisingly sturdy. While you shouldn’t rest your 45-pound desktop computer on this surface, it can hold up against most office work. If you want more vertical storage, check out this minimalist wall-mounted desk.

Best for corner: Teraves Reversible L-Shaped Desk

Teraves

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Why it made the cut: This L-shaped desk provides plenty of workspace for one or two people, plus room for files or a large monitor for creatives and gamers. 

Specs

  • Material: Engineered wood and metal
  • Dimensions: 68.9 inches D x 53.1 inches W x 30 inches H
  • Storage: Two shelves

Pros

  • Large workspace
  • Comes with shelves for storage
  • Made with durable materials

Cons

  • Can take up a lot of space

The Teraves Reversible L-Shaped Desk gives you space and options. The elegant desktop surfaces can be arranged to suit your needs. It’s great for work and gaming and is one of the most affordable desks that fits nicely in a corner. The long side gives you 69 inches of space. The short side is 53 inches long. That’s plenty of room to work, so it would be best for two monitors, yet it isn’t too bulky to block your office door. Theoretically, you could fit a second person at the desk if you’re willing to give up some privacy.

Best for gaming: NTENSE Genesis Adjustable Gaming Desk

NTENSE

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Why it made the cut: Designed for gamers, this sleek modern desk comes with LED lights to enhance the experience and also allows you to adjust from sitting to standing.

Specs

  • Material: Engineered wood and metal 
  • Dimensions: 29.8 inches D x 53.62 inches W x 40 inches H
  • Storage: None

Pros

  • Height adjustable 
  • Comes with LED lights
  • Dedicated space for cup holder and headphone hook

Cons

  • Expensive

The simple NTENSE Genesis Desk can be adjusted to three different heights to give you the right angle for work or gaming. A built-in wire trough keeps cords from strangling your productivity and snagging your legs. The headphone hook and cup holder can be installed in four different areas, ensuring everything you need is within reach. But best of all, this modern model looks good. Remote-controlled RGB LED lights make this best gaming computer desk glow and shine like a futuristic work hub without looking like a disorganized cyberpunk rig.

Best budget: Cubiker Computer Desk

Cubiker

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Why it made the cut: This affordable option comes in five different widths and has a side for storage. 

Specs

  • Material: Engineered wood, steel, fabric
  • Dimensions: Available in 32, 40, 47, 55, and 63 inches.
  • Storage: Side storage bag

Pros

  • Modern look
  • Range of sizes available
  • Affordable

Cons

  • Not much storage space

The Cubiker Computer Desk checks off the three most important boxes for any quality desk: It’s flat. It’s durable. It’s the right size. While some budget desks are puny tray tables, the Cubiker’s 40-inch surface has enough space for a laptop and two monitors, with room to spare. The modern design will fit into any home office or gaming room, and the storage bag keeps things organized. It lacks USB ports and electrical outlets, but a few extension cords can turn this simple desk into a bonafide gaming hub. And go ahead and cover it with coffee stains, phone numbers, and stickers—it’s inexpensive! 

What to consider when shopping for the best computer desks

The best computer desk means different things to different people. Do you want a small and sleek modern computer desk? Or something large and multi-functional? Think about your computer use and what would make your current workspace more efficient.

Look for longevity

A well-made computer table won’t break or bend under pressure; it will last your entire career. Think of your desk as a hard-headed, dependable friend even when work gets stressful. This is not the time for cheap plastic and too many moveable (i.e., breakable) parts.

While it might seem cost-effective to buy the cheapest work table to simply “get the job done,” investing in a more substantial desk will eliminate furniture breakdowns and keep the workflow flowing. Working on a solid, dependable surface makes any task, from closing a deal to Slack-ing funny memes, feel important.

If you want a permanent workstation, think carefully about style and material. Tiny desks with spaghetti-thin legs won’t last past one intense Zoom call or Twitch livestream. And enormous, solid wood desks belong in Ebenezer Scrooge’s office, not your house. Simplicity is best, with clean lines, dark wood surfaces, and metal accents. Desks that are too trendy will look dated faster than you can say “spinning CD storage racks.” 

Luckily, there are solid desks that have an airy, lightweight aesthetic and storage for all the necessary tools of your trade.

A two-person desk doesn’t have to break the bank, or your relationship

As more people now work from their house, your home office desk might be getting crowded with a new “employee” (significant other) or pesky “interns” (kids). But adding a second worker to the office can quickly get pricey. Buying a two-person desk is often cheaper than buying two separate desks. And the style will be uniform instead of looking like your office is a collision of tastes. 

When shopping, think about how the two of you will work together. You want to conserve office space, but working on top of each other is a path towards annoyance and arguments. You need a little privacy and room to focus. 

Instead of a single tabletop, consider a two-person computer desk with desk space between workstations. This boundary will improve your work and prevent your relationship from falling apart before lunch.

Gaming desks don’t need to be elaborate

Desks don’t have to be all about work; they can still meet your needs with style. Even if your gaming rig has multiple screens, keyboards, wires, and a wildly expensive steering-wheel controller, it can all rest on a single level of an impressive-looking desk. 

Multi-level desks are often bulky, and some of those cubbyholes will only be used to store a dusty old ream of sprocketed Commodore 64 printer paper. Plus, the more planes and elements to a desk, the more the desk takes over, and the work and gaming become secondary. You need a workspace, not a 12-foot-tall cat tower.

Save as much space as possible

How small can a computer desk be? If you want a desk that’s one step above working on your lap but a few steps below standard workspaces, there are tiny options that conserve space for those organized enough to handle the limited surface area and lack of storage. 

Hidden desks that fold or roll away can turn any room into an office as needed. With a few flips and twists, your hallway is now your work HQ. Those living in cramped apartments or overcrowded houses need a desk as small as possible. And because tiny desks can be mounted or placed anywhere, your options for workspace subscribe to the number-one rule of real estate: Location, location, location.  

The guest room, the living room, even the bathroom can be a viable workspace with a compact computer desk. If you need the basics or even less than the basics, go small and keep your work-life balance leaning towards life.

Find a computer table that bends to your needs

L-shaped computer desks offer all the space you need while taking up as little space as possible. The L-shaped desks are standard for those serious about working from home and feeling in charge. You can make your own L-shape by combining two rectangular desks together, but a properly designed L-shaped desk will add uniform style and functionality to your workspace. 

When shopping online, take special notice of the size. L-shaped desks quickly grow and grow. And when shopping in-store, know the big airy sales floor will make any desk look perfect for your room. Remember: Measure twice, buy once.

You can also arrange and rearrange most L-shaped desk layouts, giving them a bit more versatility than you may assume. And you can easily fit two people at one well-sized L-shape desk, if privacy isn’t a concern. The L-shaped desk might be the most-used piece of furniture in the house.

Can a desk be healthy?

Like the desk itself, the standing desk trend rises and falls. One year these moveable tall tables are all the rage. Next, a Harvard study finds standing desks to be of no real benefit for weight loss. It comes down to your own personal taste. 

Standing desks do offer the benefit of keeping you on task. It’s hard to zone out when you’re upright. Remember when shopping for a standing desk that you want one that works efficiently. If the act of raising and lowering the desk requires six steps and a key, it probably won’t do you much good. 

It’s also important that the standing desk offers enough workspace for your laptop and other accessories. If you have to bend down to get equipment every ten minutes, your back won’t be a happy worker.

Price

Computer desk prices can vary significantly, with luxury furniture pieces skyrocketing past the $5,000 mark. You just need a place to work. But before you fork over $10 on the cheapest thing you can find, know that a low price may mean less workspace, poor quality, or a deadly combination of both. 

Scrutinize the product dimensions to ensure you get an adult-sized desk and not a breakfast-in-bed tray. And see if there are any weight limits in the specifications because a decent-sized desk isn’t worth much if it can’t even support a Nintendo Switch. 

Luckily, a computer desk is a simple, readily available piece of furniture, so you should be able to find one within your budget that won’t collapse under a mild breeze. Don’t spend hundreds of dollars if you only need a basic table with legroom and some storage.

FAQs

Q: How much does a computer desk cost?

A computer desk can cost anywhere from under $100 to more than $1,000, depending on its size, the materials it’s constructed from, and whether it includes a mechanical component that allows it to range from a sitting to a standing desk.

Q: How do I choose a computer desk?

Start by measuring your space. The best computer desk for you fits where it needs to fit. Everything else, such as shelves and accessories, is secondary to the size. A desk that’s too small will hinder productivity. A desk that’s too big will clog up a room. You want a desk that fills the perfect amount of available space.

Q: How thick should a computer desk be?

The best desk is thick enough to hold your laptop or desktop computer and everything else you need without bending or buckling. Be wary of anything thinner than 19mm (about the size of two standard Lego bricks stacked together). Some sleek, stylish gaming desks look great, but the thin material can’t take a beating.

Q: What wood is best for a computer desk?

The best wooden computer desks are made of hardwoods such as oak, walnut, and cherry. But a solid wood desk will be more expensive and much, much heavier than you probably need. Unless you’re using the computer desk also to chop firewood or weld car parts, you can feel safe and supported using composite material and medium-density fiberboard (MDF). Avoid glass, because chipped, scratched wood can look rustic and cool, but the nicked glass looks cheap and sad. 

Q: Are L-shaped desks good for professionals?

It depends on your computer setup. If you have multiple monitors and bulky accessories (think printers) on your desk, it makes sense to use an L-shaped desk because you’ll have enough space for them. If you have a minimalist computing setup, the extra space afforded by an L-shaped desk won’t be necessary.

Q: Can you build your own computer desk?

Yes. If you want to buy wood and feet for yourself, you can assemble your own computer desk from scratch. The upside is you can tailor its size perfectly to your room, but it’ll require tools and some DIY knowledge.

Final thoughts on choosing the best computer desks for you

The best computer desk has one job: support your computer. Find a well-made desk that won’t crumble in a year and won’t overpower a room. Everything else is up to your own personal preference. Do you want shelves? Desk drawers? Do you need an L-shaped or corner desk to fit into a specific space? Do you want to try a standing desk? Before clicking “add to cart,” think carefully about how you’ll use the desk. It’s more than just a slab of wood. You need something more specialized than a kitchen table and more attractive than a folding table. But most of all, you need a computer desk that works.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

The post The best computer desks of 2023 appeared first on Popular Science.

Articles may contain affiliate links which enable us to share in the revenue of any purchases made.

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Upgrade your summer with a deeply discounted outdoor hot tub or ice bath https://www.popsci.com/gear/inflatable-hot-tub-ice-bath-amazon-deal/ Tue, 30 May 2023 15:55:00 +0000 https://www.popsci.com/?p=544368
Inflatable hot tubs and ice baths arranged in a pattern
Stan Horaczek

Improve your yard by a mile with up to 30% off a relaxing (or invigorating) inflatable on Amazon.

The post Upgrade your summer with a deeply discounted outdoor hot tub or ice bath appeared first on Popular Science.

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Inflatable hot tubs and ice baths arranged in a pattern
Stan Horaczek

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

Hopefully, you spent some time relaxing over the long Memorial Day weekend. But imagine how much more relaxing it would have been if you were chilling in an inflatable hot tub. Currently, Amazon has some popular inflatable hot tubs on sale for the lowest prices we have seen in a while. You’ll also find some cold plunges with discounts, so whether you want to sit in warm or cool water, these deals have you covered. Personally, I prefer warm every time because I don’t have the same warrior spirit all my CrossFit friends seem to have when it comes to dipping themselves in a big bucket of ice. I’m OK with that. You might feel differently, and there’s no better time to find out than during a sale.

Bestway SaluSpa Miami Inflatable Hot Tub, 4-Person AirJet Spa $371 (Was $529)

Saluspa

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This 177-gallon tub can accommodate up to four people depending on how comfortable you are with your pals. It heats water to 104 degrees and blasts your battered body with 120 jets in an effort to turn you into a relaxed jelly. Setup doesn’t require any tools, and it’s easy to store when the cold weather comes around because you can deflate it. These aren’t going to get any cheaper as we get further into summer, so now’s the time if you want to spend your evenings soaking.

Explore Fitness Large Ice Bath $100 (Was $140)

Explore Ice

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If you prefer ice cubes over massage jets, this inflatable ice bath fits one person and a heap of ice cubes for at-home cold plunges. It sets up without tools and comes with a cover so it won’t get filled with bugs and debris when not in use. It even comes with an inflatable headrest if you want to pretend to be relaxed while cold water assaults your muscles. Honestly, the science is mixed about how effective ice baths really are in terms of muscle recovery, but some people swear by them. And if you’re looking for a solid way to wake yourself up, a dip in frigid water hits harder than any coffee I’ve ever had. Plus, if you get sick of it, you can fill it with margaritas for your upcoming Fourth of July block party. (Don’t really do that; it’s not food safe).

More inflatable hot tub deals

More ice bath deals

The post Upgrade your summer with a deeply discounted outdoor hot tub or ice bath appeared first on Popular Science.

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The best paper shredders of 2023 https://www.popsci.com/story/reviews/best-paper-shredder/ Wed, 13 Oct 2021 18:40:00 +0000 https://stg.popsci.com/uncategorized/best-paper-shredder/
The best paper shredders of 2022.

Shred through those sensitive documents, bills, and credit card offers like Edward Scissor Hands on a caffeine high.

The post The best paper shredders of 2023 appeared first on Popular Science.

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The best paper shredders of 2022.

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

Best overall Fellowes Powershred 14-Sheet Micro-Cut Heavy Duty Paper Shredder Fellowes Powershred 14-Sheet Micro-Cut Heavy Duty Paper Shredder
SEE IT

Extra security and speedy shredding make this shredder work for home or office. 

Best for home The Wolverine SD9113 Heavy Duty Shredder is our pick for the best heavy duty paper shredder. Wolverine SD9113 Heavy Duty Shredder
SEE IT

A high paper capacity and powerful cutters shred through documents and more without slowing down.

Best budget Bonsaii 8-Sheet Strip-Cut Paper Shredder Bonsaii 8-Sheet Strip-Cut Paper Shredder
SEE IT

An excellent balance of power and capacity come together for under $30.

A paper shredder can help keep your personal and confidential information out of the hands of identity thieves and away from prying eyes. So much of our sensitive info, from bank account numbers to social security numbers, are printed on our mail, contracts and bills. Each time one of these ends up in the trash, we’re leaving ourselves vulnerable to identity theft. It’s super easy to avert this possibility by shredding documents and credit cards. It takes no time at all, either. Here’s a list of the best paper shredders currently available.

How we chose the best paper shredders

When searching for the best paper shredders, I considered over 50 models from 10 brands in all price ranges, looking for a balance between performance and price. My picks were based on their ease of use, safety, versatility, and capacity.

The best paper shredders: Reviews & Recommendations

Specific features that were paramount to making my picks were reverse buttons to remove jams, simple emptying mechanisms, and a way to easily empty baskets, which all contribute to their overall ease of use. The paper shredders we’re recommending have thermal overload sensors and other safety mechanisms that turn off the cutters when the lid is removed from the basket.

When active, those cutters that can handle a wide range of materials, including paper clips and staples, take some of the work out of shredding. Some versatile models also have wide mouths for easier paper entry. Finally, I factored in how many papers could the shredder handle at once? Capacity also included the basket volume, which determines how often it needs to be emptied.

Best overall: Fellowes Powershred 14-Sheet Micro-Cut Heavy Duty Paper Shredder

Fellowes

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Why it made the cut: This shredder from Fellowes can take on big jobs with its nine-gallon bin, but it’s quiet and safe to use, making it great for home or office.

Specs: 

  • Dimensions: 25.2 x 11.4  x 17.3 inches
  • Paper capacity: 14 sheets
  • Security level: P-5

Pros:

  • High capacity
  • Childsafe
  • Quiet

Cons:

  • Expensive

Shred 14 sheets of paper at once in the teeth of this heavy-duty shredder from Fellowes. The micro-cut size means enhanced level P-5 security, and saved space, in part thanks to the nine-gallon integrated bin, and a tiny shred that comes out to roughly 2,000 particles per sheet of paper. It’s super quiet, making it perfect for shared workspaces, and the auto-stop feature can detect when your hands are close to the opening, so it’s extra safe to use and child-proof.

Best for home: Wolverine SD9113 Heavy Duty Shredder

Wolverine

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Why it made the cut: The Wolverines P-4 cross-cut comes with an 18-sheet capacity and long runtime that catapult it to the front of the heavy-duty shredders. 

Specs:

  • Dimensions: 13.4 x 10.4 x 22 inches
  • Paper capacity: 18 sheets
  • Security level: P-4

Pros:

  • Shreds through paper, credit cards, CDs, clips, and staples
  • Cross shreds for added security
  • Completely pull out the waste bin for dumping

Cons: 

  • Loud
  • Basket fills quickly

The Wolverine SD9113 Heavy Duty Shredder puts P-4 security on everything that passes through its cutters. Those cutters handle a wide range of materials, including staples, paper clips, credit cards, CDs, and (of course) paper. A high 18-page capacity and 60-minute runtime goes through paper quickly, without the need to cool for up to 60 minutes. 

While the wastebasket fills quickly, it is easy to empty and pulls completely out of the shredder. The only other downside to this model is the noise. It makes a racket but gets the job done.

Best for office: Aurora AU1580MA Professional Grade Micro-Cut Paper/ CD and Credit Card Shredder

Aurora

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Why it made the cut: The AU1580 makes quick work of paper, credit cards, CDs, and paper clips, turning them into a micro-shredded mass that’s nearly impossible to identify. 

Specs:

  • Dimensions: 16.93 x 12.99 x 23.62 inches
  • Paper capacity: 15 sheets
  • Security level: P-4

Pros:

  • 60-minute continuous runtime
  • Quiet operation
  • Reverse mechanism effectively fixes jams

Cons: 

  • Big and heavy

The Aurora AU1580MA shredder isn’t your average Home Depot shredder. This behemoth can hold 8.5 gallons of shredded paper. That kind of capacity doesn’t come without significant weight. The AU1580 weighs in at 43.28 pounds but features casters to provide some mobility. 

It makes quick work of 15 pages at a time and can handle CD/DVDs, paper clips, and credit cards. The blades turn them into a micro-shredded P-4 mass that’s caught in the basket. An impressive 60-minute runtime lets offices with a high paper volume stay ahead of shredding. Even when shredding at full power, this model stays relatively quiet. Five indicator lights provide insight into the current status, such as door open, overload, bin full, overheat (includes automatic shutdown), and power. 

This model’s size takes up a good amount of space, so it’s not the best for small offices or homes.

Best heavy duty: Ideal 2604 P-4 Office Shredder with Automatic Oiler

Amazon

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Why it made the cut: This German-designed shredder can handle the shredding needs of up to 10 people, is fast and secure, and comes with a sustainably made wooden cabinet. 

Specs: 

  • Dimensions: 19.5 x 18.5 x 36.5 inches
  • Paper capacity: 23-25 sheets
  • Security level: P-4

Pros:

  • High capacity
  • Fast
  • Comes in a wooden cabinet 

Cons:

  • Heavy 
  • Expensive

This industrial-grade shredder from Ideal is a high-security, German-engineered solution perfect for legal and medical office use as well as any high-volume home business where privacy needs to be protected at all costs. It runs continuously thanks to its automatic-oiling feature and can easily munch through staples, paper clips, and stacks of paper 25 sheets thick, adding up to a shred rate of about 500 sheets per minute. This, thanks to its sturdy, steel-toothed construction and its 26-gallon wastebasket, make it ideal for use by a staff of 8 to 10 people.

Best portable: Aurora AU800SD Professional Strip Cut Paper Shredder

Aurora

SEE IT

Why it made the cut: This Aurora model made the list as the best home paper shredder for its power, small size, versatile fit, and range of shreddable materials. 

Specs:

  • Dimensions: 6.5 x 12.99 x 2.95 inches
  • Paper capacity: 8 sheets
  • Security level: P-1

Pros:

  • Compact and easy to store
  • Expands to fit different wastebaskets
  • Shreds credit cards and CD/DVDs

Cons: 

  • Cannot handle a high volume

This portable paper shredder from Aurora can be used with or without a wastebasket, which allows you to use it in multiple locations from office to home. It cuts in strips and can destroy up to eight sheets of paper at a time as well as CDs, DVDs, and credit cards. It sits securely atop any open wastebasket and even has an extendable arm that allows it to accommodate bins up to 15 inches wide.

The AU800 can handle eight pages at once and shreds them to ¼-inch pieces. That’s only P-1 security, so this isn’t intended for ultra-sensitive information. A jam remover button helps dislodge paper or other materials from the blades. However, be aware that this model isn’t designed for high paper volumes. It shuts down and requires a cool-down period fairly quickly.

Best for credit cards: AmazonBasics 6-Sheet Capacity, Paper Shredder

Amazon Basics

SEE IT

Why it made the cut: Amazon’s paper shredder features safety features and quick credit card shredding, rising to the top of the competition. 

Specs:

  • Dimensions: 12.8 x 7.3 x 15.9 inches
  • Paper capacity: 6 sheet 
  • Security level: P-3

Pros:

  • Safety mechanism shuts it off if it’s not fit to the basket correctly
  • Shreds quickly during its 30-minute runtime
  • Auto-senses paper for better energy efficiency

Cons: 

  • Produces more paper dust than other models

This shredder from AmazonBasics comes with a 3.8-gallon integrated wastebasket and shreds up to six sheets of paper at a time in a cross-cut pattern, meeting P-3 security requirements. Easily shred a banker’s box worth of bills within the three-minute continuous run cycle, and you won’t have to worry about overheating thanks to the automatic shutoff feature.

Credit cards get a special center spot on the cutter, and it blows right through them. It also features the standard reverse mechanism and an auto-on feature that senses paper and turns on the cutters. If you’re worried about security, this is the best shredder for credit cards. You can also use it to destroy a single credit card at a time.

Best budget: Bonsaii 8-Sheet Strip-Cut Paper Shredder

Bonsaii

SEE IT

Why it made the cut: For less than $30, this model provides security, transparent window, great capacity, and versatile shredding options.

Specs:

  • Dimensions: 13.3 x 6.88 x 13.97 inches
  • Paper capacity: 8 sheets
  • Security level: P-2

Pros:

  • Shreds credit cards, paper, paper clips, and staples
  • Sharp, steel cutters hold their edge
  • Transparent window lets you see when it’s full

Cons: 

  • Noisy
  • Short runtime

The Bonsaii 8-Sheet Strip-Cut Paper Shredder offers an impressive array of features for a relatively inexpensive model. Its 8-page capacity gets only better when you consider that it can also shred credit cards, paper clips, and staples. It even has a dedicated slot for shredding CDs, which is especially helpful if you’re getting rid of old data discs. That reduces the work it takes to prep papers for shredding. It’s the heavy-duty steel blades that eat through materials and strip cut them into P-2 sized pieces. 

Many of our recommendations adhere to the P-3 safety standard, but we can forgive the slightly less sophisticated security given the shredder’s cost. While we like the automatic overheat protection and cooling system, this model can only run for about two minutes before it needs to shut down. That might limit the shredding capacity in a large office. It’s also a noisy addition to the office environment.

Things to consider before buying paper shredders

Security level

Paper shredders are given a security rating according to the size of the paper pieces they create. Larger pieces are easier to reassemble, warranting a lower security level. Levels range from P-1 to P-7. The P-1 level machines create basic strips and offer the least security, while level P-7 is reserved for organizations like the NSA that have to shred top-secret documents. Depending on the sensitivity of the document’s information, you may need a P-3 or P-4 level shredder that cuts documents into smaller pieces than a P-2 model. At the P-5 and P-6 levels, the machines micro-cut the paper into tiny particles, making it nearly impossible to reassemble.

Paper capacity and runtimes

Shredders can handle different paper volumes at once, anywhere from four to 20 pieces. Machines that can shred a higher volume at once cost more. However, if you’re shredding hundreds of papers every week, these machines will save you time. 

Models that can shred more at once also have more powerful motors with longer running times. Less powerful motors may only run for five minutes or less before they need to cool down. Heavy-duty models can often run 30-60 continuous minutes.

What you’re shredding

Paper isn’t the only thing that needs shredding. Some of the best paper shredders can also eliminate credit cards and CD/DVDs. For those who have secure information in multiple mediums, this kind of shredder can offer a secure way to dispose of more than paper. 

Size

A home office may be limited in space with monitors and equipment taking up desk space, making the size of the paper shredder a serious matter to consider. Some models are as big as a garbage can, while others are small enough to sit on a desktop. A no-basket paper shredder can sit atop almost any garbage can and can be stored in a drawer.

FAQs

Q: Is cross-cut or micro-cut shredder better?

When deciding which is better, cross-cut or micro-cut, you have to consider what kind of information you’re shredding. Cross-cut shredders offer some security, but there’s a possibility of the information being visible if someone really wanted access to it. This type of shredding works well for everyday emails, documents, and non-sensitive personal information. However, if there’s confidential information, a micro-cut shredder creates smaller pieces that are incredibly difficult to reconstruct.

Q: Should I shred old utility bills?

According to the Federal Trade Commission, you can shred utility bills immediately after they’ve been paid. Other documents like pay stubs and medical bills need to be hung onto for a little longer, but utility bills aren’t something you need to keep for years.

Q: How long should a shredder last?

With proper maintenance and oiling, a paper shredder should last about ten years. However, that estimate is based on usage. Never exceeding the paper capacity and runtime limits will assure that you get the best life out of the shredder.

Q: How much does a paper shredder cost?

This depends on its size, paper capacity, and other features. You can pay as little as $30 to as much as $1,780 for our recommendations.

Final thoughts on the best paper shredders

The Fellowes Powershred 14-Sheet Micro-Cut Heavy Duty Paper Shredder gets top marks because of its security rating, high paper capacity, and safety features. However, if you’ve got a business that regularly handles sensitive information, you’ll probably need the power of the Aurora AU1580MA Professional Grade Micro-Cut Shredder. This model’s high-capacity cutters whip through paper, credit cards, and other materials.

Bring your own wastebasket with this portable Aurora shredder and use it in multiple locations from office to home. It cuts in strips and can destroy up to eight sheets of paper at a time as well as CDs, DVDs and credit cards. It sits securely atop any open wastebasket and even has an extendable arm that allows it to accommodate bins up to 15 inches wide.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

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Plague DNA was just found in 4,000-year-old teeth https://www.popsci.com/science/plague-britain-teeth-archeology-dna/ Tue, 30 May 2023 15:00:00 +0000 https://www.popsci.com/?p=544348
A close up of a skull and teeth.
Dental pulp can trap the DNA remnants of infectious diseases. Deposit Photos

New evidence shows that a strain of Yersinia pestis was in Britain millennia prior to the Black Death.

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A close up of a skull and teeth.
Dental pulp can trap the DNA remnants of infectious diseases. Deposit Photos

The persistent pathogen known as the plague was circulating around Europe and Asia centuries before it wiped out about 25 million people. A team of scientists have just recently found 4,000 year-old DNA belonging to Yersinia pestis, or the bacteria that causes the plague. That’s about 3,000 years before the plague before the Black Death began. The findings were detailed in a study published May 30 in the journal Nature Communications and represent the oldest evidence of the plague in Britain found to date. 

[Related: Scientists tracked the plague’s journey through Denmark using really old teeth.]

The team identified two cases of Yersinia pestis (Y. pestis) from human remains found uncovered in a mass burial site in southwest England near Somerset and another in a ring cairn monument in Cumbria in northwest England. After taking small skeletal samples from 34 individuals at both sites, they screened for plague bacteria in the teeth. Dental pulp can trap the DNA remnants of infectious diseases and has helped scientists find evidence of the plague before. 

After extracting dental pulp, they analyzed the DNA inside and identified three cases of Y. pestis in two children that are estimated to be about 10 to 12 years-old when they died, as well as one case in a woman who was between 35 and 45 years-old. It is likely that these people lived at roughly the same time, according to radiocarbon dating.  

“The ability to detect ancient pathogens from degraded samples, from thousands of years ago, is incredible. These genomes can inform us of the spread and evolutionary changes of pathogens in the past, and hopefully help us understand which genes may be important in the spread of infectious diseases,” study co-author and PhD student from the Francis Crick Institute Pooja Swali said in a statement. “We see that this Yersinia pestis lineage, including genomes from this study, loses genes over time, a pattern that has emerged with later epidemics caused by the same pathogen.”

Plague has been identified in multiple individuals who lived in Eurasia between 5,000 and 2,500 years ago during the Late Neolithic and Bronze Age (LNBA). Evidence of the plague, however, hadn’t been seen in Britain at this point in time. This LNBA strain was likely brought into Central and Western Europe about 4,800 years ago as humans expanded into Eurasia, and this study suggests it extended even further west into Britain. The LNBA strain’s wide geographic range suggests that it could have been easily transmitted.

Genome sequencing found that the strain of Y. pestis found in these sites looks very similar to the strain identified further east into Eurasia at the same time and not later strains of the disease. It lacked the yapC and ymt genes, which are both seen in later strains of plague. The ymt gene is also known to play an important role in plague transmission via fleas. It is likely that the LNBA strain was not transmitted on fleas, unlike later strains of the plague, such as the one that caused the Black Death in the Fourteenth Century. 

[Related: You could get the plague (but probably won’t).]

The team is not fully certain that the individuals at these old burial sites were infected with the exact same strain of plague, since pathogenic DNA that causes disease degrades very quickly in samples that could be incomplete or eroded. 

The Somerset site is also rare since it doesn’t match other funeral sites dating back to this time period. The individuals buried there appear to have died from trauma. The team believes that the mass burial here was not due to an outbreak of plague, but the individuals studied may have been infected when they died.  

“We understand the huge impact of many historical plague outbreaks, such as the Black Death, on human societies and health, but ancient DNA can document infectious disease much further into the past,” co-author and geneticist at the Francis Crick Institute Pontus Skoglund said in a statement. “Future research will do more to understand how our genomes responded to such diseases in the past, and the evolutionary arms race with the pathogens themselves, which can help us to understand the impact of diseases in the present or in the future.”

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Evolution of human foot arches put the necessary pep in our upright steps https://www.popsci.com/health/foot-arch-walking-human-evolution/ Tue, 30 May 2023 14:00:00 +0000 https://www.popsci.com/?p=544309
A walker in sneakers, with the bottom of the shoe visible.
Arch mobility could be the key to our species' successful bipedalism. Deposit Photos

A spring-like recoil in the arch helps the ankle lift the body from the ground.

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A walker in sneakers, with the bottom of the shoe visible.
Arch mobility could be the key to our species' successful bipedalism. Deposit Photos

Efficiently standing up and walking and running on two feet  stands out among the traits that separates Homo sapiens from great apes—and we can owe a lot of that to a raised medial arch. While crucial, the mechanics behind bipedal walking are still a bit of an evolutionary mystery.  A study published May 30 in the journal Frontiers in Bioengineering and Biotechnology found that helpful and spring-like arches may have evolved for the purpose of helping us walk on two feet.

[Related: Foraging in trees might have pushed human ancestors to walk on two feet.]

The team found that the recoil of a flexible arch repositions in the ankle upright for more efficient walking and is particularly effective for running. 

“We thought originally that the spring-like arch helped to lift the body into the next step,” study co-author and University of Wisconsin-Madison biomechanical engineer Lauren Welte said in a statement. “It turns out that instead, the spring-like arch recoils to help the ankle lift the body.”

The raised arch in the center of the human foot is believed to give hominins more leverage while walking upright. When arch motion is restricted, like it could be in those with more flat feet, running demands more energy from the body. Arch recoil could potentially make our species more efficient by propelling the body’s center of mass forward, essentially making up for the mechanical work that the muscles would have to do otherwise.

In this new study, the team selected seven participants with varying arch mobility and filmed their walking and running patterns with high-speed x-ray motion capture cameras. The team measured the height of each participant’s arch and took CT scans of their right feet. They also created rigid models that were compared to the measured motion of the bones in the foot. Scientists then measured which joints added the most to arch recoil and the contribution of arch recoil to center of mass and ankle propulsion.

Surprisingly, they found that a rigid arch without recoil caused the foot to prematurely leave the ground, likely decreasing the efficiency of the calf muscle. A rigid arch also leaned the ankle bones too far forward. A forward lean looks more like the posture of walking chimpanzees instead of the straight upright stance of a human gait.

A flexible arch helped reposition the ankle upright, allowing the leg to push off the ground more effectively. This effect is greater while running, suggesting that a flexible arch for more efficient running may have been a desired evolutionary trait.

The team also found that a joint between two bones in the medial arch–the navicular and the medial cuneiform–is crucial to flexibility. Investigating the changes in this joint over time could help scientists track the development of bipedalism in our own fossil record. 

[Related: The Monty Python ‘silly walk’ could replace your gym workout.]

“The mobility of our feet seems to allow us to walk and run upright instead of either crouching forward or pushing off into the next step too soon,” study co-author and Queen’s University mechanical and materials engineer Michael Rainbow said in a statement.

These findings and understanding more about arch flexibility could help people who have rigid arches due to illness or injury. Their hypothesis still needs more testing, but could help solve a plethora of modern-day foot dilemmas. 

“Our work suggests that allowing the arch to move during propulsion makes movement more efficient,” said Welte. “If we restrict arch motion, it’s likely that there are corresponding changes in how the other joints function.”

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Need a vacation? OneAir finds you massive savings on airfare, hotels, and more https://www.popsci.com/sponsored-content/oneair-airfare-hotel-savings-deal/ Tue, 30 May 2023 13:00:00 +0000 https://www.popsci.com/?p=544332
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Stack Commerce

Score huge discounts on airfare, hotels, car rentals, and more to book your next vacation for less.

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OneAir helps you find and book cheaper flights, hotels, car rentals, and activities—get a lifetime Premium Plan for $59.99 or an Elite Plan for $109.99.

The U.S. Bureau of Labor Statistics reports that airline tickets increased by 35% from 2021 to 2022. Unfortunately, these high prices are likely here to stay. If you don’t want to compromise your travel plans or go off budget, you might need OneAir. 

This service and app helps you save on flights, hotels, car rentals, and more. Get a lifetime subscription to their Premium Plan for $59.99 (reg. $290) or the Elite Plan for $109.99 (reg. $790).

OneAir Premium Plan

OneAir uses the power of AI to scan and track millions of airline fares accurately and in real-time. That means you can just pack your bags, and OneAir finds the deals for you. Here’s how it works:

  1. Select your departure airports (up to 5 for the Premium Plan and up to 10 for the Elite Plan) so OneAir knows where to search.
  2. Use the ‘Explore the World’ tool to set a flight budget, destinations, and travel months. You can set notifications for specific destinations.
  3. Get instant deal alerts delivered straight to your email inbox. Or, download the iOS or Android app and set up notifications.
  4. When you see a deal that meets your needs, book your flight!

The Premium Plan gives you lifetime access to Economy Class flight deals, mistake fares, and private discounted airfares. Take advantage of exceptional customer support if you have questions or issues while using the service or booking deals.

With OneClub Exclusive, you can also book cheap hotels, rental cars, and activities worldwide. Get fully set for your next adventure without breaking your budget.

OneAir Elite plan

The Elite Plan gets you all the benefits of the Premium Plan, plus a wider selection of deals. Get access to discounted Business, First, and Premium Class flights and all mistake fares. You could save up to $500 on each international economy flight and up to $2,000 on each business class flight.

Select the plan that’s right for you and your travel plans. Get a lifetime subscription today and save on flights, hotels, car rentals, and more for life:

Prices subject to change.

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Limited-time offer: Secure a lifetime license to Microsoft Office for just $29.99 https://www.popsci.com/sponsored-content/cheap-office-license-deal/ Mon, 29 May 2023 13:00:00 +0000 https://www.popsci.com/?p=544317
A laptop sitting on a wooden desk.
Stack Commerce

Save on essential software and programs this Memorial Day.

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We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

In need of a Microsoft Office license? Save this Memorial Day and get a lifetime Microsoft Office license for Mac or Windows for only $29.99 until May 31.

According to the latest statistics, Microsoft Office currently has a staggering 345 million users—and the popularity and reach of Microsoft Office show no signs of waning anytime soon. A comprehensive Microsoft Office 2021 lifetime license grants users access to top-notch Microsoft applications like Word, Excel, PowerPoint, and more, catering to various industries. 

Whether you’re looking to create a presentation, organize complex data into a streamlined document, or design a sophisticated spreadsheet to impress your new client, pack a punch with lifetime access to leading Microsoft programs—which you can download and begin using instantly.

Each suite provides essential Microsoft applications commonly used by Windows and Mac users, ensuring the efficient completion of business and personal projects alike. By installing this software on your iMac or Windows computer at home or on your laptop, you can conveniently improve your workflow and experience improved productivity at any stage of development. And with free customer support, updates, and no monthly or annual fees, you’ll have the tools you need without the hassle.

These highly-rated lifetime licenses to MS Office come with an excellent average rating of 4.5 out of 5 stars and numerous positive reviews, making it a highly recommended choice. One verified buyer raved, “As far as word processors go (make that MS Word), this is the premier and best all-around go-to utility and, at this price, is most definitely one of the best bargains online from any vendor!”

Boost your productivity and reach everything from personal to professional goals with this powerful software.

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Prices subject to change.

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The 6 essential parts of an effective workout https://www.popsci.com/health/basic-workout-routine/ Tue, 30 May 2023 13:00:00 +0000 https://www.popsci.com/?p=543866
Person with dark skin and short hair jumps rope while pregnant person with light skin and hair in a bun squats and lifts dumbells. Illustrated in orange, black, and gray.
Working out and winning. Julia Bernhard

Cardio or lifting? Why not both?

The post The 6 essential parts of an effective workout appeared first on Popular Science.

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Person with dark skin and short hair jumps rope while pregnant person with light skin and hair in a bun squats and lifts dumbells. Illustrated in orange, black, and gray.
Working out and winning. Julia Bernhard

MOST PEOPLE have a certain mindset when it comes to working out: They tend to stick to a familiar plan and will push their bodies to the brink to achieve their fitness goals. But a healthy exercise routine has several building blocks—and a surprising number of them depend on what you do outside your regular sweat sessions. 

Warm-up

Activities that prepare you for your main fitness practice can serve two primary purposes: reducing injury and improving performance. Warm-ups hit those marks by increasing blood flow, ramping up muscle and core temperatures, and disrupting the temporary connective tissue bonds that can make you feel tight and sore. This leads to performance-enhancing benefits like faster muscle contraction, better reaction time, greater muscle strength, lower muscle resistance, and more oxygen for your cells. Warm-ups should last at least 5 minutes and top out at 15 minutes, depending on the length and difficulty of your routine: They usually include stretching and a slow increase in exertion.

Cardio

Frequent exercise that raises your heart rate to your target zone has been shown to benefit cardiac health (though there is some evidence that consistent physical effort at this level, like during marathon training, could have negative effects). It can decrease the risk of developing and dying from heart conditions. Not only that, but cardio workouts are also associated with lower blood pressure and the suppression of atherogenesis, the buildup of fatty plaque in blood vessels that can lead to coronary artery heart disease.

Strength training

Weightlifting isn’t just for people who want to get ripped: It has more significant benefits, particularly as you age. For one, targeted muscle building can reinforce joints like knees, ankles, and hips. That offers better support for your body, which helps lower the chances of falls and injuries. Contrary to popular belief, strength training also promotes greater mobility and flexibility; plus it boosts brain health and cognitive abilities like processing speed, memory, and executive functioning.

Hydration

You have to stay hydrated before, during, and after your workout. Exercise depletes the body’s fluids, particularly as you sweat. Dehydration degrades your performance and can also impair certain cognitive functions, including short-term memory and attention. Hydrating sometimes alleviates fatigue and increases reaction time. Overall, drinking water when you feel a need, rather than on a fixed schedule, can improve performance measures like duration and speed. It’s possible to drink too much water (a potentially fatal situation known as hyponatremia), so take small sips rather than chugging a bottle all at once.

Cooldown 

Just as you don’t want to dive straight into your routine, you don’t want to end it abruptly. Build in some time to slow your roll and bookend your warm-up. An active cooldown in which you do something similar to your workout but at a lower intensity, like a light jog after a long run, can solidify the results from exercising and prep you for your next routine. Bonuses include accelerated recovery of lactate in blood, partial prevention of immune system depression, and faster recovery of the cardio­vascular and respiratory systems.

Rest days

Taking days off between workouts is a crucial part of any fitness routine. Studies indicate that rest is necessary for the body to recover: When exercise and exertion sap your energy stores and fluids, relaxation gives you time to replenish them. You need at least 24 hours to fully replace the carbohydrates in your muscles, which are important for maintaining an adequate level of glycogen and stabilizing blood sugar. Rest days help prevent overtraining syndrome too. The illness mostly comes up in competitive runners and elite athletes, with symptoms like fatigue, sleep loss, and depression. 

Read more PopSci+ stories.

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5 ways to ensure your cat actually likes playtime https://www.popsci.com/diy/cat-play-tips/ Tue, 30 May 2023 12:00:00 +0000 https://www.popsci.com/?p=544187
Tabby cat on hardwood floors playing with a fabric toy resembling a mouse
Good kitties deserve some prey at the end of every play session. cottonbro studio / Pexels

These science tips can help you find and make toys your furry friend will enjoy.

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Tabby cat on hardwood floors playing with a fabric toy resembling a mouse
Good kitties deserve some prey at the end of every play session. cottonbro studio / Pexels

Play is crucial for the social, physical, and cognitive development of many species, and even though cats are largely solitary creatures, they still need plenty of it. But people who are new to felines might not know what playtime actually looks like for these furry fellows.

Learning how to keep your cat properly stimulated is an essential part of sharing your home with them, and science can provide a couple of clues on where to start. Everyone in your household will benefit from it.

Your cat is a natural-born killer

“​​Let’s keep in mind one thing: playing for cats is very similar to predation,” says Carlo Siracusa, cat owner and associate professor of clinical behavioral medicine at the University of Pennsylvania. 

[Related: Outdoor cats are deadly—and not just for birds and squirrels]

He explains that despite their size and cuteness, cats are deadly hunters who would naturally kill 15 to 20 prey in a day. That’s why it’s important to stimulate them with activities that mimic predation.

Use toys like a string wand with a fake mouse three to four times a day in brief intervals, Siracusa says, and make sure to end every play session by letting your cat put something in their mouth. It will be a satisfying outcome for all their efforts. 

Offer predatory puzzles 

An important lesson all predators learn is figuring out how to get prey out of their burrows. This process, just like putting a puzzle together, stimulates your cat’s brain and keeps them happy and healthy. Siracusa recommends toys like these mice-shaped treat dispensers you can hide around the house. 

You can achieve a similar puzzle-solving effect by cutting out holes in an old plastic container, or a shoe or cardboard box, and filling it with toys. Cats can then reach in and figure out how to get their treats out through the openings. 

Watch TV and play videogames with your cat

Your cat also likes their screen time, so make sure you give it to them. It doesn’t need to be special-made cat TV: online videos showing birds flying around a forest can prove quite entertaining. 

If you have a tablet, there are apps specially designed for cats that you can download in lieu of a physical toy. For example, Cat Fishing 2 (available for Android and iOS) will turn the screen on your device into a pond with one, two or three fish that will disappear as your cat taps them with their paws. There are many apps out there that do the same with mice and birds if the fish aren’t alluring enough.

Trying and failing to catch intangible prey, like fish in a digital pond or a bright red dot on the wall, can be furr-straiting for your kitten, so be sure to reward them with a few treats or some wet food on a spoon.

Give your cat some safe space to climb on

Cats sometimes jump up on the counter, knocking off potentially delicate items as they do so. But try not to be mad—it’s their natural instinct. 

“Cats tend to go high because they are prey, and observing the world from a vantage point makes them feel safer,” Siracusa explains. The floor of a busy household also brings with it the possibility of being stepped on, so allowing cats some height can be comforting. A cat tree, a cheap bookshelf, or a similarly safe place to perch will do the job. 

And if even after getting them their own observation deck your chronic climber keeps breaking your expensive porcelain collectibles, don’t punish them. It sure must be annoying to say goodbye to every fragile belonging you own, but Siracusa warns against disciplining your cat for something that’s natural to them—it can lead to aggressive behavior toward you.

You have a cat toy store right at home

Experienced cat owners know that nearly anything can be a toy for their fur babies. From cardboard boxes or crumpled papers, felines can find fun in the most mundane objects. So before you spend your paycheck at the pet store, here are some items that your cat will love and you probably already have at home. 

Toilet paper rolls

Before throwing them into the recycling bin, let your cat play with your old used-up toilet paper rolls. You can decorate them with large pom poms to make them interesting, but make sure they’re big enough so that your feline friend can’t swallow them.

Knotted up t-shirts

Cut up an old t-shirt into squares and tie a knot in the middle of each one to make them look like bowties. Throw them around and watch your cat chase them, or hide them in a box with holes so they can try to get them out. To make things more interesting, you can also pack the fabric with some catnip before knotting it.

Crumpled paper and ping-pong balls

Place crumpled paper or ping-pong balls in a shoebox with holes to make a puzzle toy. If you want, you can also throw them around the house and let your cat chase them down.

Think like a cat

To understand how to best interact with your cat, remember that they have a unique personality, and like to socialize on their own terms. 

“​​I would remind people that cats are what we call a ‘non-obligate’ social species,” says Siracusa. This means they can have a social life and share it with humans and other animals, but they’ve only evolved to learn how to do so recently. Their ancestors were solitary creatures, he explains. 

[Related: We’re surprisingly bad at reading cats’ facial expressions]

For a cat, an ideal environment is one where there’s always the option to engage socially and playfully, but where they can also abstain if they want to. Attempting to force a cat to play or preventing this type of activity when needed, may lead to adverse behavior, such as seclusion and aggression.

Keep you and your cat safe

Just as you would do with dogs and babies, don’t give your cats anything they could choke on. Swallowing something they shouldn’t could lead them to unnecessary surgery or even death. 

“If your cat has the tendency to chew on fabric or any other type of fiber or strings, then keep this stuff out of sight,” Siracusa says. That means behind closed doors. Remember—cats can jump. 

Contrary to popular belief, loose strings and yarn can also be dangerous to cats, especially kittens: they can get caught in it or potentially ingest it and asphyxiate. Keep yarn wrapped up tightly when using it as a cat toy, and if your furry buddy is on the younger side, always keep an eye on them during playtime.

But your cat is not the only one you should be careful with. Don’t use your body as a toy when playing with cats. It goes without saying that their sharp claws and teeth can scratch your skin, and those cuts mixed with cat saliva can lead to infection. 

The post 5 ways to ensure your cat actually likes playtime appeared first on Popular Science.

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Every drop of the Colorado River counts. So what about evaporation? https://www.popsci.com/environment/colorado-river-evaporation/ Tue, 30 May 2023 10:00:00 +0000 https://www.popsci.com/?p=544276
Colorado River low water levels after drought and evaporation in Lake Powell, Utah, seen from above
A bathtub ring seen above the waterline around Lake Powell was created during drought that reduced the flow of the Colorado River on April 15, 2023. RJ Sangosti/MediaNews Group/The Denver Post via Getty Images

The biggest reservoirs on the Colorado River are disappearing. But the issue of evaporation is not so cut and dry.

The post Every drop of the Colorado River counts. So what about evaporation? appeared first on Popular Science.

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Colorado River low water levels after drought and evaporation in Lake Powell, Utah, seen from above
A bathtub ring seen above the waterline around Lake Powell was created during drought that reduced the flow of the Colorado River on April 15, 2023. RJ Sangosti/MediaNews Group/The Denver Post via Getty Images

For more than a hundred years, California, Arizona, and Nevada never accounted for evaporation on the lower basin of the Colorado River as they divided its water between themselves and later with Mexico. Their logic held that as long as there was more water than people used, they could ignore small losses from natural processes. More importantly, it was politically fraught—for decades, the lower basin states have been unable to reach an agreement about how evaporation should be taken into account when sharing the river’s waters. Even as a 23-year-long megadrought sucked moisture out of the already arid region, evaporation stayed off the books with decision making.

But now, as water managers scramble to find a solution to a river that’s been overused, mostly for irrigation-heavy crops like livestock feed, they’re forced into a harsh reality: every drop counts, including those that disappear into the air. 

In August 2022, the Biden administration ordered California, Arizona, and Nevada to cut their annual allotments from the river by significant amounts. Last month, the White House released a plan outlining two options, which would reduce the states’ use of the river by as much as one quarter: evenly split reductions on the lower basin, which divides the river’s flow from the tip of Arizona down to northern Mexico, between the three states, or make reductions based on senior water rights, which means fewer cuts for California. On May 22, after much politicking, the states proposed an alternative deal that pledges to use 13 percent less water from the river overall. But it’s still unclear if and how the proposed plan accounts for evaporation. 

Colorado River map of upper basin and lower basin
The lower basin of the Colorado River stretches west from the northern border of Arizona, down to Mexico. USGS

How much water is evaporating from the lower basin of the Colorado River?

One way to measure how much water dries up in the system each year is by looking at the evaporation losses on Lake Mead and Lake Powell, the nation’s two largest reservoirs, located in Nevada and Arizona and Utah and Arizona, respectively. About 1.9 million acre-feet or 13 percent of the water from the reservoirs across the entire river is lost to evaporation each year, says Jack Schmidt, director of the Center for Colorado River Studies at Utah State University. 

In particular, the lower basin (which includes Lakes Mead, Mohave, Havasu, and a few smaller mainstream reservoirs) lost an average of 906,000 acre-feet of water per year to evaporation from 2016 to 2020, according to Schmidt, who cites data from the Bureau of Reclamation. To put that number into context, Nevada can legally use about 300,000 acre-feet per year with the existing deal. “The evaporation of water in the lower basin is equal to three Nevadas. Some people would say that’s a big number,” Schmidt says. Other estimates put the amount of water lost to evaporation even higher at about 1.5 million acre-feet per year, or about five Nevadas.

But the overall amount of water that evaporates hasn’t actually changed that much in the past decade. That’s because there’s just less water in the reservoirs, which means there’s less water to lose,” according to Katherine Earp, a hydrologist for the Nevada Water Science Center. At the same time, she adds, as the reservoirs become shallower, the water becomes warmer, and evaporation increases slightly.

[Related: See inside Glen Canyon Dam as Lake Powell levels drop]

Evaporation occurs when energy, usually in the form of heat, turns a liquid into gas. In this case, sunlight heats up water from the reservoirs and transforms it into water vapor. While the process seems straightforward, many factors affect how much evaporation occurs on the reservoirs. “It’s the sun; it’s dry winds sweeping across the reservoirs; it’s whether or not it’s cloudy,” Schmidt says. “It’s all about the heat and the relative humidity of the air over the reservoir.” A warming climate can accelerate those drivers as well, he says.

Earp cautions that scientists don’t know how much climate change and evaporation will cut into water held in the lower basin. She says there are two factors that could see direct impacts: the reservoirs’ temperature and depth. “Those are changing as the [lakes along the Colorado River] are changing,” she says. “Most of the evaporation is being done right at the surface with the wind. So that’s not changing. We’ve always had a big hot desert—we will continue to have a big hot desert.”

Annual drought and precipitation conditions from 1895 to 2023 on the Colorado River presented on a spike chart with red and blue tones
The Standardized Precipitation Index (SPI) measures water supply, specifically precipitation. SPI captures how observed precipitation (rain, hail, snow) deviates from the climatological average over a given time period—in this case, over the 9 months leading up to the selected date. Red hues indicate drier conditions, while blue hues indicate wetter conditions. Data are available monthly from 1895–present. US Drought Monitor

What can states in the Colorado River deal do to fight evaporation?

Even if the states took immediate action to prevent evaporation on the Colorado River, it wouldn’t be simple. The reservoirs are too big for quick fixes. “People put covers on their swimming pools and hot tubs,” Schmidt says. “You’re not going to do any of that on Lake Powell and Lake Mead—these are reservoirs are more than 100 miles long.” Instead, he outlines two potential solutions: consolidating water from the two major reservoirs into one or pumping some of the water underground. 

Schmidt did the math behind the first option. In a white paper published in 2016, he examined how much water might be saved if the lower basin states fill Lake Mead and put any remaining water into Lake Powell. “Right now we manage the system to equalize the storage contents in Lake Mead and Lake Powell, and so we sort of maximize the surface area exposed to the sun,” he says. But he found the savings would be minimal, about 50,000 acre-feet of water across the two reservoirs, and says it should be used as a second-tier strategy.

[Related: Solar panels and water canals could form a real power couple in California]

In the second option, water from the reservoirs would slowly be cached underground. Arizona and California already store some water underground in recharge basins with the intention to put water back into local aquifers. But there’s a risk of not being able to track and recover all of the water that seeps back into the ground. Still, Schmidt says recharge basins might be a good option if evaporation gets worse. “It’s a technique trusted by water managers,” Schmidt says. “Yes, it’s uncertain. But those uncertainties do not concern people enough that they don’t do it.”

Earp says the subterranean-storage strategy might be difficult in southern Nevada, where the geology can’t store such large volumes of water. “When users can’t use all the water, they do store excess in smaller orders in Arizona and Las Vegas. But doing the whole lake is a much bigger scale thing,” she says. “I don’t know if it would work.”

Both Earp and Schmidt agree that evaporation will keep playing a role in negotiations over the lower basin. “The most fundamental attribute of the river is it’s fully tapped out,” Schmidt says. “When the natural flow of the river system declines, and you begin to account for everything (because you must), then evaporation is a significant process. And somebody’s got to account for it.”

The post Every drop of the Colorado River counts. So what about evaporation? appeared first on Popular Science.

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A scientific guide to clouds, even the ones that look like udders https://www.popsci.com/environment/types-of-clouds/ Mon, 29 May 2023 23:00:00 +0000 https://www.popsci.com/?p=544239
Mammatus types of clouds over a lighthouse and rocky coast
Mammatus clouds over St Mary's Lighthouse in England. Moo. Owen Humphreys/PA Images via Getty Images

Some clouds have weird names and funny features. You should learn them.

The post A scientific guide to clouds, even the ones that look like udders appeared first on Popular Science.

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Mammatus types of clouds over a lighthouse and rocky coast
Mammatus clouds over St Mary's Lighthouse in England. Moo. Owen Humphreys/PA Images via Getty Images

When you look up at the clouds, what do you see? A blob, a wisp, perhaps an elephant-shaped clump. It’s fun to get creative with the descriptions, but scientists have a formal classification system that can be useful to the everyday cloud watcher, too. We’ve made a field guide to types of clouds, so next time you’re enjoying a day outside, you can put your newfound knowledge of the skies to work.

What’s in clouds and their names?

Clouds are made up of droplets of water or tiny ice crystals floating in the planet’s atmosphere. They hold clues about the weather—like if it’s going to rain, snow, or worse—and the interesting physical and chemical cycles churning through the air.

“They are such an amazing feature of Earth that are simply fun to look at and study,” says Vanessa Maciel, an atmospheric scientist at the University of California, Los Angeles. Clouds are shaped by the many changing characteristics of the atmosphere: temperature, moisture, winds, and more. 

[Related: Make your own weather station with recycled materials]

Just like animal species, climate scientists have a system for naming clouds with genera, plus smaller subdivisions of species and varieties. These designations are based on their shape, appearance, and how high they are in the atmosphere. Each genus of clouds can be described as one of four main shapes, first categorized in 1803: cirro-form, cumulo-form, strato-form, and nimbo-form. Cirro-type clouds are the thin wisps; cumulo-type clouds are huge and fluffy; strato-type clouds are wide and flat layers; and nimbo-type clouds are the quintessential gray rain clouds. 

The astonishing diversity of clouds might seem overwhelming to a beginning cloud-gazer, but Maciel has advice on where to start. “A great way to narrow down the type of cloud you are seeing is to first try to estimate whether it is in the lower, middle, or high atmosphere,” she says.

Cumulus types of clouds over Florida seen from space
On January 25, 2023, NOAA satellites captured an unusually long and long-lived rope cloud produced by a cold front over the Gulf of Mexico. A rope cloud is a very long, narrow band of cumulus cloud formations. NOAA

High clouds

The highest clouds are the wispiest: cirrus, cirrocumulus, and cirrostratus. They generally form above 20,000 feet, and typically indicate a coming change in the winds or weather. In certain regions of the tropics, they can even indicate that hurricanes are on the way. Generally, the air gets colder higher up in Earth’s atmosphere, so cirrus and friends are made up of ice crystals that are stretched and spread by the winds, giving them their thin, strand-like shapes.

Cirrus are the thinnest wisps, whereas cirrocumulus appear more like a thin, rippled white sheet. Cirrostratus are a more homogenous sheer veil. If you see a bright halo forming around the sun, that might be the cirrostratus. When cirrus clouds stack together like ridges, almost like a rack of ribs, the variety is called vertebratus.

Nacreous types of clouds
Nacreous clouds are one of the few types of iridescent clouds. NOAA

Maciel’s favorite cloud looks a bit like a cirrus cloud, but is actually something quite different. Nacreous clouds, also known as mother-of-pearl or ice polar stratospheric clouds, are made of very cold ice. When the sun goes down they catch the light and reflect brilliant colors. “These colors occur only during sunrise and sunset, and are created by the interaction between sunlight and the cloud’s ice crystals, which are smaller than that of a standard ice cloud,” says Maciel. “They are also pretty rare as they only occur at high atmospheric altitudes and high latitudes.” Your best bet of seeing them is near the planet’s poles.

Altostratus and cirrocumulus types of clouds
Cirrocumulus and altostratus clouds at sunset near Natural Bridge State Park in Kentucky, Wild Horizons/Universal Images Group via Getty Images

Mid-level clouds

In the middle of the atmosphere, we start to see more clumps: altostratus and altocumulus. They can be found 6,500 to 20,000 feet up, and tell very different tales when it comes to weather—altocumulus often mean you’ve got a pleasant day ahead, but altostratus indicate a long bout of rain or snow. 

Altostratus appear as large, flat sheets that aren’t quite thick enough to block out the sun entirely. Altocumulus, on the other hand, look like a horde of little cotton balls scattered in the sky. You’ve likely seen a few different species and varieties of altostratus and altocumulus before, particularly cavum. This variety is a continuous sheet of cloud with a big chunk missing. Stratiformis is another common species of altocumulus, where high clouds appear like a patchy, ridged sheet. Similarly, if there are layers of cloud that cover the sun entirely, they may be a variety known as opacus.

Nimbostratus types of clouds
Nimbostratus clouds portend stormy weather. NOAA’s National Weather Service Collection

Low clouds

Many kinds of clouds start close to the ground—6,500 feet or below—and extend high into the atmosphere. These clouds are called nimbostratus, stratus, stratocumulus, cumulus, and cumulonimbus. These clouds are made up of water droplets from the surrounding warm air, creating their quintessential fluffy look.

Nimbostratus are the gray gloomy clouds that indicate rain. Stratus clouds also create gloomy days as they cover the sky in a low sheet of dingy white. Stratocumulus are somewhat similar to altocumulus, but they have a darker shadow and don’t appear quite as bright white as their higher altitude counterparts. 

Cumulus and cumulonimbus clouds are the behemoths of the bunch. Cumulus are huge white clouds reaching high up into the sky—the classic cotton balls. Cumulonimbus, on the other hand, are imposing and a bit foreboding, with a high, flat top and a promise of rain storms.

[Related on PopSci+: Cloudy with a chance of cooling the planet]

Low clouds come with some of the oddest and most interesting varieties and features. This is where tubes or vortexes appear from clouds, called tuba. They can also show—for a brief moment, anyway—a feature that looks like a set of perfect crashing waves, known as fluctus. Although the fluctus pattern looks almost too good to be true, it’s a somewhat common consequence of the physics of fluid motions. Stratocumulus clouds can also put on a cow costume: That is, they can grow little nubs on their undersides that almost look like udders, known as mamma. Cumulus clouds can even put on a hat, an accessory cloud called pileus that pops up at the top of one of these huge cloud formations.

Pileus types of clouds
The formation of a rare pileus cloud capping a common cumulus cloud is an indication that the lower cloud is expanding upward and might well develop into a storm. Jiaqi Sun/NASA

What clouds to look for now

This summer, you can expect all the fair weather clouds, plus some of the weirder ones that pop up with summer storms like pileus. “Summer usually has clear skies, unlike the overcasts typical of winter,” adds Maciel. “But as summer also has a lot of convection due to the warm surface temperature, you can expect to see cumulus clouds, which are your iconic fluffy and bright white clouds.”

Clouds are just as complex as their classifications, and they’re changing not just with the seasons, but also with the climate. As Earth’s temperature warms, the varieties we see might change, too. “In spite of their ubiquity, there is still a lot about clouds that we don’t know,” says Maciel. For now, though, see how many you can spot—and enjoy the beautiful views provided by our planet’s magnificent atmosphere.

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1 in 5 people are likely to live in dangerously hot climates by 2100 https://www.popsci.com/environment/dangerous-heat-global-population-climate-change-2100/ Tue, 30 May 2023 01:00:00 +0000 https://www.popsci.com/?p=543534
A man dumps water on his head from a Municipal Water Tanker to cool himself outside a slum cluster on a hot summer day in New Delhi, India on May 23, 2023.
A man dumps water on his head from a Municipal Water Tanker to cool himself outside a slum cluster on a hot summer day in New Delhi, India on May 23, 2023. Kabir Jhangiani/NurPhoto via Getty Images

Most people live with a mean annual temperature of 55 to 80 degrees Fahrenheit. Billions of people could see 84 degrees or higher by the end of the century.

The post 1 in 5 people are likely to live in dangerously hot climates by 2100 appeared first on Popular Science.

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A man dumps water on his head from a Municipal Water Tanker to cool himself outside a slum cluster on a hot summer day in New Delhi, India on May 23, 2023.
A man dumps water on his head from a Municipal Water Tanker to cool himself outside a slum cluster on a hot summer day in New Delhi, India on May 23, 2023. Kabir Jhangiani/NurPhoto via Getty Images

This article originally appeared on Inside Climate News, a nonprofit, independent news organization that covers climate, energy and the environment. It is republished with permission. Sign up for their newsletter here

One in five people could live in dangerously hot conditions by the end of the century if global warming continues at its current pace, even if nations uphold their pledges under the Paris Agreement, scientists warned in a new peer-reviewed study. It’s the latest research published in recent days that points to the stark human and societal costs of the accelerating climate crisis as global carbon emissions continue to rise to unprecedented levels.

The study, published Monday in the journal Nature Sustainability, estimates that some 2 billion people would see a mean annual temperature of 84 degrees Fahrenheit or higher, starting in as early as 2070, when Earth’s population is expected to reach at least 9.5 billion. Most people live in a “human climate niche” that ranges between a mean annual temperature of 55 degrees and 80 degrees, the researchers said, so that many people experiencing a major uptick in regional heat would be unprecedented.

Such a temperature threshold, where 84 degrees or higher becomes the middle ground for the year, can also be very dangerous for anyone without air conditioning or other means to cool off, the study’s authors also noted. According to their estimate, some of the nations that will be hardest hit by the heat are also home to some of the world’s poorest communities, where air conditioning typically isn’t an option.

Of the estimated 2 billion people that could be forced out of their climate niche and into dangerous extreme heat, the study found, 600 million will be in India, 300 million in Nigeria and 100 million in Indonesia.

“Those people who are affected are the poorer people on the planet,” Tim Lenton, director of the Global Systems Institute at Exeter and the study’s lead author, told Forbes. “At higher temperatures, life becomes unbearable, affecting water, agriculture and food. You can’t barricade yourself from climate change. There is an undeniable interconnection amongst nations.”

Among the study’s most pertinent findings is the drastic difference it would make for the world to limit average warming to just 1.5 degrees Celsius above pre-industrial levels—the most ambitious target of the Paris Agreement. Scientists estimate that under the global climate treaty’s current pledges, the world is still on track to warm by roughly 2.7 degrees Celsius by 2100. But if emissions were significantly slashed to limit average warming to 1.5 degrees, Monday’s study said, just 400 million people would be pushed outside their climate niche instead of 2 billion.

Monday’s study also comes on the heels of a major report released last week by the United Nations’ weather agency, which warned that heat will likely soar to record levels in many parts of the world over the next five years. Global warming, combined with a climate pattern known as El Niño, will largely drive that heat, the report’s authors said, with the next five years almost certainly set to be the warmest five-year period ever recorded.

“This will have far-reaching repercussions for health, food security, water management and the environment,” Petteri Taalas, the World Meteorological Organization’s secretary general, told the New York Times. “We need to be prepared.”

It’s not just extreme heat that climate scientists have warned about in recent days.

On Monday, the World Meteorological Organization released another report, which found that the economic damage of natural disasters continues to rise, even as improvements in early warning systems have helped reduce the loss of life. In that report, the U.N. body tallied nearly 12,000 extreme weather, climate and water-related events globally between 1970 and 2021 that have killed more than 2 million people and caused $4.3 trillion worth of economic damage.

And climate change is already affecting all parts of the world, not just the poorer regions. About $1.7 trillion of that financial damage took place in the United States alone.

The new studies and reports, in many ways, are pointing to a reality with which many people are already familiar. This week, swathes of India are baking under extreme heat, with some places reaching temperatures as high as 113 degrees Fahrenheit on Monday. Over the weekend, raging wildfires in Canada continued to send smoke south into the U.S., prompting officials in Colorado and Montana to issue air quality alerts. And last week, heavy rainfall inundated 43 towns in Italy, causing landslides and flash floods that killed 14 people and destroyed hundreds of roads.

The post 1 in 5 people are likely to live in dangerously hot climates by 2100 appeared first on Popular Science.

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The best telescopes for kids in 2023 https://www.popsci.com/best-telescopes-for-kids/ Thu, 15 Aug 2019 14:29:11 +0000 https://www.popsci.com/uncategorized/best-telescopes-for-kids/
Celestron and Gsyker make some of the best telescopes for kids.

Help kids of all ages get excited about seeing the stars and planets up close.

The post The best telescopes for kids in 2023 appeared first on Popular Science.

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Celestron and Gsyker make some of the best telescopes for kids.

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Best overall The Celstron Inspire AZ100 is one of the best telescopes for kids. Celestron Inspire 100AZ
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This lightweight telescope is also easy to assemble and comes with a carrying case.

Best for travel Gskyer is one of the best telescopes for kids. Gskyer 70mm Aperture 400mm AZ Mount Astronomical Refractor Telescope
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This telescope lets kids take pictures with their phones and is great for camping.

Best budget MaxUSee Kids Telescope 400x40mm with Tripod & Finder Scope MaxUSee Kids Telescope 400x40mm with Tripod & Finder Scope
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Comes with a moon filter and maps of the moon and stars—at a wallet-friendly price.

While trips to the Moon may not be commonplace yet, you can foster curiosity about the universe by letting kids see the lunar surface and the rings of Saturn up close with a telescope for kids. It’s one thing to learn about the Moon in school, and it’s another thing to see it up close. The best telescopes for kids are designed for amateur astronomers, and can provide night after night of out-of-this-world entertainment.

How we chose the best telescopes for kids

Popular Science covers the latest developments in astronomy, from stunning images from the James Webb Space Telescope’s discovery of its first exoplanet to meteor showers you can see from your backyard. Telescopes are a great way to help kids explore the galaxy and see the planets up close. But they can also be complicated instruments with many moving parts for the uninitiated.

In compiling our list of recommendations for the best telescopes for kids, we considered models from trusted brands like Celestron, optical quality and magnification, ease of set up and use, supplemental educational tools that explain what to look for in the night sky, durability, and portability. We also weighed user reviews, what kids look for at different ages, and prices.

The best telescopes for kids: Reviews & Recommendations

Looking for a telescope for the first time can be a daunting experience. Many of the considerations are the same finding telescopes for adults. Figuring out what type of telescope is best for your needs, what aperture you should look for, and the relationship between focal length and magnification are all important factors to consider. The best telescopes for kids should also be durable and easy to use. We break down what you should look for and our picks so you can compare telescopes and find the best option for your family.

Best overall: Celestron Inspire 100AZ

Celestron

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Specs

  • Weight: 12.4 pounds
  • Eyepieces: 10mm and 20mm
  • Aperture: 100mm
  • Type: Refractor

Pros

  • Good for both stargazing and birdwatching
  • Wide aperture for better focus
  • Comes with smartphone adapter
  • Plenty of training resources

Cons

  • Some users say the build quality is not great

Celestron has been making telescopes for nearly 60 years. Its Inspire AZ100 is a great tool for older kids (and adults) to start stargazing at night and observing objects on Earth during the day. 

This short refractor telescope is a good telescope for beginners as it’s easy to set up and doesn’t require any special tools. Its short optical tube of 436mm provides a wide field of view, while its higher 100mm aperture allows aspiring astronomers to focus on the planets, moons, and stars. At 12.4 pounds, this telescope is relatively lightweight, and it comes with a tripod that’s easy to adjust. The AZ1000’s alt-az mount allows users to move the telescope up and down and pan left and right. 

The 10mm and 20mm eyepieces increase magnification by 33 times and 66 times, respectively. A finderscope makes it easier for beginning astronomers to spot the surface of the Moon. And your purchase also gives you access to Celestron’s Starry Night software, which teaches kids about what they see in the night sky. This telescope is also equipped with a smartphone adapter that allows kids to capture images of both the planets and wildlife.

Best for young kids: Celestron FirstScope

Celestron

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Specs

  • Weight: 4.5 pounds
  • Eyepieces: 4mm and 20mm
  • Aperture: 76mm
  • Type: Dobsonian/Newtonian

Pros

  • Easy to use
  • Portable
  • Less expensive

Cons

  • Small aperture

Designed for kids from ages 4 to 8, Celestron’s FirstScope is an ideal introductory telescope. Inspired by Galileo, this telescope features the names of he and other esteemed astronomers through the ages on its optical tube. This telescope comes with 20mm and 4mm eyepieces that result in magnification of 15 times and 75 times, respectively. The FirstScope is also light and easy to transport at 4.5 pounds. Its tabletop design makes it simple to set up on level surfaces outdoors. It’s a good telescope for a 5-year-old kid, and when the child is done stargazing, it looks great on a bookshelf.

Best for older kids: Celestron Astro Fi 102 WiFi Maksutov Wireless Reflecting Telescope

Celestron

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Specs

  • Weight: 16.8 pounds
  • Eyepieces: 25mm, 10mm
  • Aperture: 125mm
  • Type: Schmidt-Cassegrain

Pros

  • Works with smartphones and iPads
  • WiFi-enabled
  • Lens cap doubles as a smartphone adapter

Cons

  • Challenging to use if WiFi connection is spotty
  • Some users report difficulty focusing

To get kids who are always on their devices interested in the Andromeda Galaxy, consider the Celestron Astro Fi 102 WiFi Maksutov Wireless Reflecting Telescope. Kids can control the WiFi-enabled telescope using an iPhone, iPad, or Android device and Celestron’s SkyPortal app, making this a good teen telescope. Instead of searching the night sky for planets, teens can use this telescope’s interactive sky map to tap the object they want to see on their screen. Then the telescope will move to find the object and focus upon it.

Set up is easy, and at 16 pounds with an adjustable tripod, this telescope is quite portable. Its two eyepieces (25mm and 10mm) provide magnification of 50 times and 125 times, respectively. That power will help kids locate the rings of Saturn, the red spot on Jupiter, the craters on the Moon at night, and wildlife and birds during the day. And the lens cap doubles as a smartphone adapter so that kids can show off images of their cosmic and terrestrial explorations.

Best for travel: Gskyer 70mm Aperture 400mm AZ Mount Astronomical Refractor Telescope

Gskyer

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Specs

  • Weight: 5.73 pounds
  • Magnification: 25mm, 10mm
  • Aperture: 70mm
  • Type: Refractor

Pros

  • Lightweight
  • Strong magnification
  • Comes with smartphone adapter

Cons

  • Some users say its poorly made
  • May not locate celestial objects as well as other telescopes

This beginner’s telescope from Gskyer is designed for portability. This compact model weighs just under 6 pounds and comes with a travel case and an adjustable tripod so kids can take it on the go. The magnification power of the two eyepieces (25mm and 10mm) increase magnification by 16 times and 40 times, respectively, which can then be tripled using the included 3x Barlow lens. The Gskyer also comes with a smartphone eyepiece adapter so your kids can take photos of their discoveries, making it a solid telescope for 10-year-olds and other kids around that age.

EDITOR’S NOTEPopular Science has teamed up with Celestron on a line of products. The decision to include this model in our recommendations was made by our reviewer independently of that relationship, but we do earn a commission on its sales—all of which helps power Popular Science.

Specs

  • Weight: 10 pounds 
  • Magnification: 20mm and 10mm
  • Aperture: 70mm
  • Type: Refractor

Pros

  • High-quality optics
  • Can operate it remotely
  • Comes with educational software

Cons

  • Some users said components arrived broken

If your kid is a budding photographer who’s looking to capture images of the planets, the AstroMaster 80mm is a great option.  A collaboration between Celestron and Popular Science, this telescope combines high-quality optics, including an 80mm objective lens, with a smartphone adapter that allows users to take photos and videos of the Moon, planets, and birds through the eyepiece. This refractor model comes with two eyepieces (20mm and 10mm) and a Barlow lens that doubles its magnification power. It also features an erect image diagonal that allows you to use it to spot wildlife and other terrestrial objects during the day. 

This telescope allows you to connect via Bluetooth and control the shutter release remotely on both iOS and Android phones. It’s also easy to assemble and super portable at 10 pounds. And kids can get a primer on the night sky with Celestron’s Starry Night Astronomy software, which provides sky maps and details about thousands of celestial objects.

Best budget: MaxUSee Kids Telescope 400x40mm with Tripod & Finder Scope

MaxUSee

SEE IT

Specs

  • Weight: 1.9 pounds
  • Eyepieces: 20mm, 12.5mm, 6mm
  • Aperture: 40mm
  • Type: Refractor

Pros

  • Lightweight
  • Inexpensive
  • Comes with viewfinder scope

Cons

  • Lenses not powerful 
  • No connectivity

The maps of the moon and stars are a big hit with kids, and adults will love the price of these budget-friendly telescopes. With easy assembly and included moon filter, the MaxUSee telescope is a good tool to get your child stargazing. That said, its eyepieces are not very powerful and it doesn’t come with a lot of features, so if having a good quality telescope that you can use for years is important, this may not be the best option.

Things to consider before purchasing a telescope for kids

If you’ve purchased cameras before, some terminology around lenses and light will be familiar. While telescopes can be incredibly intricate, when it comes to finding the best telescopes for kids, look for options that are easy to set up and use, durability, and lightweight for easy portability.

Type of telescope

There are three main types of telescope: refracting, reflecting, and catadioptric.

Refractor: These telescopes use both an objective lens and an eyepiece to display an image. Light enters the telescope and is bent or refracted as it travels through the optical tube. The eyepiece then magnifies the light and straightens out the image for the viewer.

Reflector: Reflecting telescopes use mirrors to bring an image into focus. These telescopes typically have a primary mirror opposite the aperture, where light comes into the telescope, and a secondary mirror. The light is reflected from the second mirror toward the eyepiece for the viewer to see the image. 

Catadioptric: These telescopes are designed with both lenses and mirrors to show an image, combining refraction and reflection. One of the categories of this type of telescope is known as Schmidt-Cassegrain.

Focal length, magnification, and aperture

The focal length of a telescope is the distance between where the telescope’s main lens or mirror and where light enters the telescope. It can range between 300 and 4,000 millimeters. The shorter the focal length, the wider the field of view. Conversely, higher focal lengths provide greater magnification to focus on a specific object.

To find out the magnification of a telescope using a specific eyepiece, divide the focal length of the optical tube by the eyepiece.  

Aperture: A telescope’s aperture indicates the diameter of the objective lens or mirror in millimeters. The larger the aperture, the more light the telescope can let in, making images brighter and easier to see.

Mounts

The three categories of mounts of telescopes are Altazimuth, Dobsonian, and Equatorial. Alt-az mounts, as they are also known, refer to the horizontal and vertical axes. They allow users to move the telescopes left and right and up and down on a tripod. Dobsonian mounts are a type of alt-az mount that are designed to support heavy telescopes with large apertures. 

Equatorial mounts are used with more sophisticated telescopes. One of their axes aligns with Earth’s rotation axis. These mounts are designed for long-term observation and astrophotography.

Ease of use

When considering what telescope to buy, look for options that will be easy for them to operate. Keep an eye out for models that are easy to set up and come with tripods. Many options are also lightweight and come with a carrying case or backpack for easy portability, such as the Gskyer 70mm Aperture 400mm AZ Mount Astronomical Refractor Telescope.

Age of your child

Kids age 4 to 8 starting stargazing will do well with a tabletop model with simple controls, such as the Celestron FirstScope. Meanwhile, older kids with some experience will appreciate the flexibility of telescopes with smartphone adapters that let them take photos and images of their cosmic finds, or they can use to take photos with their smartphone and the Celestron Astro Fi 102 WiFi Maksutov Wireless Reflecting Telescope, which they can operate remotely using their smartphone or an iPad.

FAQs

Q: What type of telescope is best for kids?

The best type of telescope for kids depends on their age. For younger children, simple, tabletop telescopes with easy-to-use controls are great for new stargazers. As kids age, they can use models with more advanced features, such as several eyepieces, accompanying educational software, and smartphone adapters.

Q: How much does a telescope for kids cost?

Telescopes for kids can range from around $20 for budget-friendly models with limited features to more than $350 for telescopes for older children that have high-quality optics, lots of supporting educational material, and are made from durable materials.

Q: Can a kid’s telescope be used to see planets?

Yes, a kid’s telescope can be used to see planets. At a basic level, most kids’ telescopes will allow them to see the surface of the Moon. More sophisticated models with more magnification power and locating tools can help kids see Jupiter and Saturn.

Q: Are kids’ telescopes OK for amateur astronomy?

Kids’ telescopes are great for amateur astronomy. However, when selecting a kids ‘ telescope, just be mindful of the child’s age and capabilities. And be sure to take advantage of the finderscopes and any accompanying educational materials that will help your child learn more about thousands of objects in the night sky.

Final thoughts on the best telescopes for kids

If you’re looking to give your children an appreciation for the galaxy, these telescopes for kids can help them see the stars and the planets close up. These models are easy to assemble and are designed with features that kids will appreciate, such as the ability to take photos with their phones. You’ll be glad you have one of the best telescopes on hand for the next cosmic event.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

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Termite mounds may one day inspire ‘living, breathing’ architecture https://www.popsci.com/technology/termites-green-architecture/ Mon, 29 May 2023 19:00:00 +0000 https://www.popsci.com/?p=544116
Large termite mound in the African Savannah
Termites could soon help build buildings instead of destroy them. Deposit Photos

Termites can be a nuisance to humans, but their homes may teach us a thing or two about sustainability.

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Large termite mound in the African Savannah
Termites could soon help build buildings instead of destroy them. Deposit Photos

Termites are often thought to be structural pests, but two researchers have taken a slightly contrarian viewpoint. As detailed in a new paper recently published in Frontiers in Materials, David Andréen of Lund University and Rupert Soar of Nottingham Trent University studied termites’ tens of millions of years of architectural experience exhibited within their massive mounds. According to the duo’s findings, the insects’ abilities could inspire a new generation of green, energy efficient architecture.

Termites are responsible for building the tallest biological structures in the world, with the biggest mound ever recorded measuring an astounding 42-feet-high. These insects aren’t randomly building out their homes, however—in fact, the structures are meticulously designed to make the most of the environment around them. Termite mounds in Namibia, for example, rely on intricate, interconnected tunnels known as an “egress complex.” As explained in Frontiers’ announcement, these mounds’ complexes grow northward during the November-to-April rainy season in order to be directly exposed to the midday sun. Throughout the rest of the year, however, termites block these egress tunnels, thus regulating ventilation and moisture levels depending on the season.

To better study the architectural intricacies, Andréen and Soar created a 3D-printed copy of an egress complex fragment. They then used a speaker to simulate winds by sending oscillating amounts of CO2-air mixture through the model while tracking mass transference rates. Turbulence within the mound depended on the frequency of oscillation, which subsequently moved excess moisture and respiratory gasses away from the inner mound.

[Related: Termites work through wood faster when it’s hotter out.]

From there, the team created a series of 2D models of the egress complex. After driving an oscillating amount of water through these lattice-like tunnels via an electromotor, Andréen and Soar found that the machine only needed to move air a few millimeters back-and-forth to force the water throughout the entire model. The researchers discovered termites only need small amounts of wind power to ventilate their mounds’ egress complex.

The researchers believe integrating the egress complex design into future buildings’ walls could create promising green architecture threaded with tiny air passageways. This could hypothetically be accomplished via technology such as powder bed printers alongside low-energy sensors and actuators to move air throughout the structures.

“When ventilating a building, you want to preserve the delicate balance of temperature and humidity created inside, without impeding the movement of stale air outwards and fresh air inwards,” explained Soar, adding the egress complex is “an example of a complicated structure that could solve multiple problems simultaneously: keeping comfort inside our homes, while regulating the flow of respiratory gasses and moisture through the building envelope,” with minimal to no A/C necessary. Once realized, the team believes society may soon see the introduction of “true living, breathing” buildings.

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Sloth schedules are surprisingly flexible https://www.popsci.com/environment/sloth-environment-ecology-behavior/ Mon, 29 May 2023 17:00:00 +0000 https://www.popsci.com/?p=543546
A sloth hangs in a tree in Costa Rica. The mammals have the slowest digestive system of any animal on Earth. It can take sloths two weeks to digest an entire meal, and they sleep about 20 hours a day to conserve energy.
Sloths the slowest digestive system of any animal on Earth. It can take the mammals two weeks to digest an entire meal, and they sleep about 20 hours a day to conserve energy. Deposit Photos

These cryptic critters use lack of activity to their advantage.

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A sloth hangs in a tree in Costa Rica. The mammals have the slowest digestive system of any animal on Earth. It can take sloths two weeks to digest an entire meal, and they sleep about 20 hours a day to conserve energy.
Sloths the slowest digestive system of any animal on Earth. It can take the mammals two weeks to digest an entire meal, and they sleep about 20 hours a day to conserve energy. Deposit Photos

As they creep through tropical environments appearing not to have a care in the world, sloths give off some of the chillest vibes in the animal kingdom. This relaxed and elusive nature does make studying sloths a bit difficult, but a study published May 29 in the journal PeerJ Life & Environment is shedding some new light on activity patterns and behaviors adaptations of two sloth species.

[Related: Sloths aren’t the picky eaters we thought they were.]

The team looked at Bradypus variegatus and Choloepus hoffmanni, two sloth species that live in the lowland rainforests of Costa Rica’s Caribbean coast. Costa Rica is home to six species of sloths, who have the slowest digestive system of any animal on Earth. It can take the mammals two weeks to digest an entire meal, and they sleep about 20 hours a day to conserve energy. 

Using micro data loggers, the team continuously monitored the behavior of both three-toed sloths (Bradypus) and two-toed sloths (Choloepus) for periods ranging from days to weeks. These recordings enabled the team to explore how fluctuating environmental influences sloth activity and how that correlates with their uniquely chill and low-energy lifestyle. 

A sloth from the study wearing a micro data logger
A sloth from the study wearing a micro data logger. CREDIT: The Sloth Conservation Foundation.

Choloepus sloths are cathemeral, meaning that they have irregular variable periods of activity throughout a 24-hour cycle. Cathemeral behavior allows them to take advantage of better environmental conditions while minimizing the risk of predation. 

The study also observed a large amount of variability in activity levels between the animals and also within individual sloths. This flexibility suggests that the animals have developed diverse strategies to adapt to their surroundings, which enhances their chances of survival when the environment fluctuates. 

The team initially expected that daily temperatures, which can hit the mid-90s, would influence sloth activity, but their observations did not support that initial hypothesis. However, Bradypus sloths did increase their night time activity on colder nights and the nights that followed colder days. The authors believe that this indicates a potential correlation between sloth behavior and temperature variations.

[Related: Our bravest ancestors may have hunted giant sloths.]

While this study adds more understanding to sloth ecology, it also highlights the importance of preserving and protecting tropical rainforests and their unique inhabitants. According to Global Forest Watch, Costa Rica lost about 2.4 percent of its forest cover between 2000 and 2020, but the country has gained international recognition for its efforts to mitigate climate change and promote animal welfare.

“Understanding the drivers of sloth activity and their ability to withstand environmental fluctuations is of growing importance for the development of effective conservation measures, particularly when we consider the vulnerability of tropical ecosystems to climate change and the escalating impacts of anthropogenic activities in South and Central America,” the team wrote in the paper.

As these tropical ecosystems become more vulnerable due to human-made climate change, understanding wildlife patterns are crucial for conservation methods. While long-term observational research is a challenge, this study could pave the way for more studies on this cryptic and elusive species. 

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Why the recycling symbol is part of a ‘misinformation campaign’ https://www.popsci.com/environment/recycling-symbol-misinformation-greenwashing/ Mon, 29 May 2023 15:00:00 +0000 https://www.popsci.com/?p=543692
Recycling bins with symbol
68 percent of Americans assume any product with the resin code and recycling symbol is recyclable. DepositPhotos

The recognizable chasing arrows icon could be doing more harm than good—so the EPA wants to toss it.

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Recycling bins with symbol
68 percent of Americans assume any product with the resin code and recycling symbol is recyclable. DepositPhotos

Over the past decade, public awareness about climate change has grown, albeit gradually. As more people became eco-conscious, it isn’t surprising that the demand for environmentally friendly products has increased as well. According to the 2022 Sustainable Market Share Index, sustainability-marketed products now hold about a 17.3 percent share of the consumer packaged goods market, a significant increase from 13.7 percent back in 2015. Products marketed as sustainable also grew about twice as fast as conventionally marketed products from 2017 to 2022.

With more green products entering the market, it’s important to ensure that manufacturers do not mislead consumers when it comes to environmental claims. The Federal Trade Commission made the Guides for the Use of Environmental Marketing Claims (or “Green Guides”) exactly for this purpose. First issued in 1992, the guide has been updated several times since then to keep marketers from making unsubstantiated claims.

[Related: How to actually recycle.]

Last month, the US Environmental Protection Agency (EPA) submitted a comment about the Green Guides. According to the agency, the use of the resin identification code (RIC) with the recycling symbol—the familiar three chasing arrows—constitutes a misrepresentation of claims. Even though the RIC is meant to identify a product’s unique plastic resin type, consumers generally understand it to represent a universal recycling symbol. A 2019 report from the Consumer Brands Association found that 68 percent of Americans assume any product with the resin code and recycling symbol is recyclable.

“When the plastic industry co-opted the recycling symbol to label their plastic resins, they began a decades-long misinformation campaign to convince Americans that all plastic packaging is recyclable,” says Martin Bourque, executive director of the Ecology Center and co-founder of the Alliance of Mission-Based Recyclers (AMBR). “Nothing could be farther from the truth.”

The RIC refers to the type of plastic of which there are seven in total. However, “very little plastic packaging is even marginally recyclable,” says Bourque. According to Greenpeace, only polyethylene terephthalate (PET) #1 and high-density polyethylene (HDPE) #2 can be claimed as recyclable materials. They are the only types of plastic resin widely accepted by more than 350 material recovery facilities (MRF) across the country. Even if MRFs were to accept other types of plastic, that doesn’t ensure that they will be recycled—they might simply dispose of them.

Recycling contamination occurs when recyclable items are placed in the wrong bins or non-recyclable items end up in the recycling system. Local governments and MRFs face contamination issues in their daily operations, which is associated with consumer confusion about what is recyclable or not. The Recycling Partnership, a nonprofit organization committed to building a circular economy, estimates that contamination costs the US recycling system at least $300 million annually

Bourque says the use of the chasing arrows with the RIC has undermined efforts at reducing plastic use, enabled even more single-use and disposable plastic packaging, and cost recyclers millions in collection, sorting, and disposal expenses. The EPA comment says that updating the recyclable claims section on the Green Guides may reduce consumer confusion and the financial burden of facilities receiving and incarcerating plastic materials they cannot recycle.

ASTM International, which administers the RIC system, revised the standard in 2013 and replaced the chasing arrows symbol with a solid equilateral triangle to bring the focus back to the purpose of resin identification and quality control before recycling. The state of California also passed SB 343 in 2021, which prohibits the use of the chasing arrows symbol on products that are not considered recyclable in accordance with statewide recyclability criteria. 

Having an equilateral triangle around the resin identification code is moderately better than the recycling symbol, says Bourque, but he recommends that California’s new labeling law be adopted on a national level since it requires any claims of recyclability (including the use of the chasing arrows symbol) to be backed up with proof.

The RIC system was not intended for consumers in the first place, but rather, for those who work in materials recovery and recycling facilities. In terms of getting more people on board with recycling, it may be helpful to establish consumer communication tools like new labels to indicate specifically whether a plastic material is recyclable or not, says Kate O’Neill, global environmental politics and governance expert and professor at the University of California, Berkeley. It may also restore trust in the system and create more effective recycling practices from consumers, she adds.

[Related: Recycling plants spew a staggering amount of microplastics.]

To increase plastic recycling rates, it’s necessary to invest in recycling infrastructure, says O’Neill. The country’s recycling infrastructure hasn’t been keeping up with today’s waste steam. Last year, the EPA announced $375 million in funding for new recycling, reuse, and waste prevention programs and initiatives—the largest investment in recycling by the EPA in 30 years.

O’Neill says creating markets for recycled plastics could also help. In 2020, California passed AB 793 which requires plastic beverage containers to contain a minimum amount of recycled content. Starting in 2022, the amount of post-consumer recycled resin in plastic beverage containers should at least be 15 percent. The requirement increases to 25 percent by 2025 and 50 percent by 2030, thereby increasing the demand for recycled resin.

Although recycling is part of the solution when addressing plastic waste, O’Neill says it can’t be the panacea. The focus should still be on reducing plastic packaging, not recycling more, says Bourque. Targeting virgin plastic production and use can reduce further waste generation. “We cannot recycle our way out of the plastic packaging crisis,” he adds. “Remember, it goes ‘Reduce, Reuse, then Recycle!’”

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Ford EVs can soon be charged at Tesla stations https://www.popsci.com/technology/ford-tesla-supercharger/ Mon, 29 May 2023 11:00:00 +0000 https://www.popsci.com/?p=544152
Tesla supercharging station.
Tesla plans to open its charging stations to other electric vehicles. Tesla

Mustang Mach-E, F-150 Lightning and E-Transit customers can start using adapters to plug into superchargers.

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Tesla supercharging station.
Tesla plans to open its charging stations to other electric vehicles. Tesla

Ford and Tesla have been rivals for years in the electric vehicle market, but a new agreement may change their relationship status. On Thursday, Ford said in a press release that its EV customers would be able to get access to 12,000 Tesla superchargers across the US and Canada by spring of next year. This will broaden the availability of charging stations by adding to the network of ​​10,000 DC fast-chargers and over 80,000 level-two chargers that Ford has been building out for the last decade. 

Most EVs on the market use the Combined Charging System (CCS) ports for fast charging. Teslas have a unique charging port called the North American Charging Standard (NACS), but its vehicle owners can use special adapters to charge at non-Tesla power stations. 

Pre-2021, it meant that Teslas could charge at public power stations, but no other EVs could charge at a Tesla station. However, starting in November 2021, Tesla started making some (but not all) of its superchargers open to non-Tesla EVs through a “Magic Dock” adapter. Drivers who wanted to use this still had to download the Tesla app on their phones in order to make it work. The Ford partnership will change that process, making things easier for people driving vehicles like the Mach-E or F-150 Lightning.  

“Mustang Mach-E, F-150 Lightning and E-Transit customers will be able to access the Superchargers via an adapter and software integration along with activation and payment via FordPass or Ford Pro Intelligence,” the company said. “In 2025, Ford will offer next-generation electric vehicles with the North American Charging Standard (NACS) connector built-in, eliminating the need for an adapter to access Tesla Superchargers.”

[Related: Electric cars are better for the environment, no matter the power source]

As EVs become more commonplace, charging availability and range anxiety become understandable concerns for many owners. The only way to relieve that is to build a charging infrastructure that parallels the distribution of gas stations across the country. The Biden Administration has made building public chargers a priority, and last fall, the Department of Transportation said that it had signed off on the EV charging plans for all US states, as well as DC and Puerto Rico. States like Michigan and Indiana have even come up with ambitious plans to make wireless charging possible through special roadway systems

When it comes to smoothing over the potholes in the way of EV adoption in the US, more accessible chargers are never a bad thing. Tesla, having led the EV game for so long, seems like it’s finally ready to share its resources for the greater good. “Essentially, the idea is that we don’t want the Tesla Supercharger network to be like a walled garden. We want it to be something that is supportive of electrification and sustainable transport in general,” Tesla CEO Elon Musk said Thursday in Twitter Spaces, as reported by TechCrunch.  

“It seems totally ridiculous that we have an infrastructure problem, and we can’t even agree on what plug to use,” Ford CEO Jim Farley said at a Morgan Stanley conference, CNBC reported. “I think the first step is to work together in a way we haven’t, probably with the new EV brands and the traditional auto companies.”

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Scientists and Indigenous people team up to build a kelp seed bank https://www.popsci.com/environment/kelp-seed-bank-washington/ Mon, 29 May 2023 01:00:00 +0000 https://www.popsci.com/?p=543525
Kelps provide food and habitat for myriad coastal creatures.
Kelps provide food and habitat for myriad coastal creatures. DepositPhotos

In Washington State, the Jamestown S’Klallam Tribe’s new preservation facility offers a back-up plan for an uncertain future.

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Kelps provide food and habitat for myriad coastal creatures.
Kelps provide food and habitat for myriad coastal creatures. DepositPhotos

This article was originally featured on Hakai Magazine, an online publication about science and society in coastal ecosystems. Read more stories like this at hakaimagazine.com.

Kelp is common along temperate shorelines around the world. For millennia, this large brown algae has been vital to coastal Indigenous peoples. In Washington State and British Columbia, kelp is a traditional food source, a focus for commercial cultivation, and habitat for critically endangered and threatened species like rockfish and young salmon. It’s hard to overstate kelp’s value. For the Jamestown S’Klallam Tribe, says shellfish biologist Annie Raymond, “you can’t quantify how important this biodiversity is, culturally.”

But over the past four decades, warming water and other factors have been killing kelps across the Salish Sea. So this summer, Raymond and her team will be hunting for kelp spores—colloquially called seeds—in the Juan de Fuca Strait, part of an ongoing effort to build an emergency fund for kelps, says Raymond, and ensure their future in the tribe’s traditional territory.

To face the pressing need to preserve kelp biodiversity, the Jamestown S’Klallam Tribe is partnering with the Puget Sound Restoration Fund (PSRF) and other tribes, universities, and organizations to expand a seed bank for Washington kelps as part of the Puget Sound Kelp Conservation and Recovery Plan.

Begun in 2010 by researchers at the University of Wisconsin–Milwaukee, the existing seed bank houses a collection of bull kelp spores from the Washington coast. Currently, the spores are housed in Wisconsin, but in the coming months, the collection will be moved to a US National Oceanic and Atmospheric Administration (NOAA) Fisheries research station in Manchester, Washington.

The expanding seed bank, says Raymond, is designed to preserve vulnerable kelp species for future restoration. While the tribe will only collect spores along the Juan de Fuca Strait, “the seed bank allows the tribe to contribute to habitat protection,” she says. “We want to help build resilience across the region.” The PSRF will also contribute to the seed bank, sampling sites along the Washington coast.

Jodie Toft, PSRF’s deputy director, says it’s taken years to build the infrastructure necessary to house such a precious resource at the Manchester Research Station for the long haul. Although the seed bank will house thousands of samples in a refrigerator no bigger than one in a typical kitchen, “we needed to make sure that our kelp lab was going to be able to keep the seed bank alive,” says Toft.

Unlike with many terrestrial plant seeds, which can be dried and stored for decades and remain viable, storing kelp for extended periods is more complex. To reproduce, explains Raymond, kelps release zoospores that develop into male and female gametophytes. To keep them viable, scientists store kelp gametophytes under red light, in low iron environments, or in a freezer, which puts it in a kind of arrested development. This means that the new bank needed to keep conditions tightly controlled, with emergency measures in case the power goes out.

The PSRF seed bank is just one of several kelp seed banks in California, Oregon, Alaska, and British Columbia. Simon Fraser University plant biologist Liam Coleman, who is working to start another kelp seed bank in British Columbia, says there’s an urgent need to make and maintain these kinds of biobanks. “The number one priority is just to make sure that biodiversity is backed up,” says Coleman. By preserving genetic diversity, scientists hope to give species the best chance they can to cope with future environmental challenges.

Seed banks will also give people in the future a chance to reforest kelps with the same genes that existed in the region in the first place, maximizing the chances that kelps will thrive.

“The gold standard for restoration is to replicate what was lost in the place where it was lost,” says Toft. Raymond hopes restoration in the future won’t be necessary. But if it is, and all goes as planned, “even 50 or 100 years in the future” the Jamestown S’Klallam Tribe will be able to access the seed bank.

It’s not just the Jamestown S’Klallam who will benefit. Todd Woodard, the infrastructure and resources executive director of the Samish Indian Nation, says that in Samish territory, kelp populations have declined by 36 percent from 2006 to 2016. Woodward expects his community will use the seed bank to reseed some of their restoration sites.

Yet as NOAA’s Manchester seed bank nears completion, the Jamestown S’Klallam Tribe will have to make crucial decisions about which kelp species to preserve. “We know bull kelp will be one,” says Raymond, “but there are also a number of understory kelps that we want to study.”

Time, however, is already running short for Salish Sea kelps. Biodiversity is still high in the Juan de Fuca Strait, but other parts of Puget Sound have already lost nearly all of their bull kelp, and for some remaining populations, genetic diversity is exceedingly low. That’s why Raymond knows they need to work fast.

“The tribe has countless cultural resources that are intertwined with kelp,” she says. “You don’t know what’s going to happen in the future.”

This article first appeared in Hakai Magazine and is republished here with permission.

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This top-rated color sensor is under $60 this Memorial Day https://www.popsci.com/sponsored-content/color-sensor-memorial-day-sale/ Sun, 28 May 2023 13:00:00 +0000 https://www.popsci.com/?p=543073
A person using a color sensor tool on brick
Stack Commerce

The Nix Mini 2 can help you match any shade on plenty of different surfaces.

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A person using a color sensor tool on brick
Stack Commerce

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The Nix Mini 2 Color Sensor is a real-life Photoshop eyedropper tool to help you with your home and design projects. It’s on sale for only $59.97 until May 31.

The season of deep cleaning every nook and cranny of your home is at its last lap, and before you know it, summer is here to usher in the season of renovating. If tackling a massive repainting project is on your to-do list, consider picking up the Nix Mini 2 Color Sensor to help you find the perfect shade.

Deciding on the color to paint your walls can be both parts stressful and overwhelming. But the Nix Mini 2 makes the process less laborious by letting you scan nearly any surface and match it with a paint color you can purchase for your home. You can get it for only $59.97 (reg. $99) during our Memorial Day sale—no coupon needed. But act fast since this deal ends May 31 at 11:59 p.m. PST.

Want to copy the wall colors of the cafe across your office? How about the accent wall you found straight from a magazine? This Bluetooth-powered tool can tell you how to replicate the exact color with just a quick scan. With its massive library of over 100,000 brand-name paint colors, it delivers your preferred hue in its equivalent sRGB HEX, CMYK, and LAB values or the precise color matches from brands you already know and love, including Benjamin Moore, Dulux, Farrow & Ball, and Sherwin Williams.

Take it from one verified buyer, who wrote, “Very effective—tested on known painted interior wall. And the app is very easy to use. Definitely recommend for DIY.” Now, all you need to do is let the Nix Mini 2 do its thing and then head to the store and buy the corresponding paint.

If you’re doing a full-blown home renovation, the accompanying app can help you create, save, and organize color palettes to speed things up. This way, you’ll always have a reference when you’re stuck choosing between furniture options. You can also share colors and palettes with your family and friends via social media or email for easy collaboration.

The Nix Mini 2 already comes precalibrated, so there’s no need to fuss with any setup. It also works with just about any surface, including vinyl, leather, plastic, fabric, dyes, and more. 

Simplify your DIY, decorating, or home renovation projects.

Grab the Nix Mini 2 Color Sensor now for just $59.97 (reg. $99). This deal ends May 31 at 11:59 p.m. PST.

Prices subject to change.

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Pro tips for teaching a kid how to ride a bike https://www.popsci.com/diy/how-to-teach-a-kid-to-ride-a-bike/ Sun, 28 May 2023 13:00:00 +0000 https://www.popsci.com/?p=544168
An elderly person with short gray hair, wearing a pink shirt and jeans, with their hands on the shoulders of a kid they're teaching how to ride a bike. The child is wearing a red helmet and using a balance bike on a park path.
This kid's got a balance bike and their teacher has the right idea. Kampus Production / Pexels

This advice should make learning to ride a bike easier for you and your fledgling rider.

The post Pro tips for teaching a kid how to ride a bike appeared first on Popular Science.

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An elderly person with short gray hair, wearing a pink shirt and jeans, with their hands on the shoulders of a kid they're teaching how to ride a bike. The child is wearing a red helmet and using a balance bike on a park path.
This kid's got a balance bike and their teacher has the right idea. Kampus Production / Pexels

Learning to ride a bike is a rite of passage in many families and communities, and that means the ability to teach someone how to ride a bike is an equally important skill. The first few tries can be scary for kids, but finding the right balance, and coordination will be easier if they have a confident teacher guiding them. That’s where you come in. 

Now, it’s not entirely natural to perch atop a pair of wheels, and falling is a near-certainty until a child has found their bike legs. Challenges are part of the process, but there are a number of ways that you can help the kid you’re teaching get comfortable on two wheels with limited trouble.

Ditch the training wheels—balance bikes are best

If you’re in your 20s or older, you probably remember learning to ride a bike with clunky training wheels bolted to the back wheel. These two extra wheels got us up on the bike and learning how to pedal. But they do a terrible job teaching the hardest and most important part of riding a bike, which is balance, according to Phil Yip, a certified cycling instructor with the League of American Bicyclists who teaches with Bike East Bay and the San Francisco Bicycle Coalition. The far superior alternative, he says, is to start on a balance bike. 

Balance bikes are simple. They’re just like small regular bikes, except without pedals. Riders propel themselves forward by pushing with their feet on the ground, essentially running with the bike beneath them. New riders can walk as slow as they want while seated on the bike, and as they get comfortable, start to move faster until they naturally lift their feet and glide farther and farther. Once they’ve mastered staying upright with their feet off the ground and can turn with a combination of the handlebars and leaning, it’s easy enough for them to hop up on a regular bike and learn the nuances of pedaling, starting, and stopping. There’s often no need for training wheels at all. One study found that children who started on a balance bike learned to ride a pedal bike around 4 years old on average, while those who started on a bike with training wheels didn’t learn until they were closer to 6. 

[Related: The best bikes for kids]

I started my kids on balance bikes when they were about 2 (they’re twins), and in a couple of weeks they were zooming and gliding faster than I could keep up with on walks around our neighborhood. When we introduced pedal bikes a few months before their fifth birthday, they got the hang of riding in two short driveway practice sessions and could easily start on their own without a push a few days later. They used training wheels for a total of 30 minutes, and that was only because we bought the bikes fully assembled and they refused to wait for me to take them off before hopping on.   

Even if your kids are older, or you’re trying to teach yourself as an adult, balance bikes are a great way to start. If you can’t find a larger balance bike or don’t want to buy one, Yip suggests removing the pedals from a regular bike and lowering the seat so the rider’s feet rest flat on the ground.

Create a fun, safe space for learning

Riding can be scary at first, so it’s important that kids start off in a comfortable environment. “Start in a flat, traffic-free area, such as a park or a quiet cul-de-sac, where your child can practice without distractions or dangers,” says Peter Ballin, a former international mountain bike racer, UCI Mountain Bike World Cup mechanic, and bicycle coach out of Morzine, France. “Ideally, start them on grass so it’s softer if they fall.” They shouldn’t have to worry about navigating around dangers or running out of space. Let them focus solely on riding.

It’s also important to remember that learning new skills is uncomfortable, so don’t push kids too hard, Yip says. After all, riding a bike should be fun. If the kids aren’t enjoying it, or are getting stressed from too much pressure, they’re going to have a harder time learning. “It’s better to let the child learn at their own pace,” he says. There’s no set amount of time that it should take. In Yip’s classes, students sometimes move from a balance bike to a pedal bike in a single day, but others might take weeks or months to get comfortable with the transition—and that’s OK.  

Ballin adds that as your child improves, giving them little challenges can be a fun way to keep them engaged and pushing themselves without undue pressure. He recommends setting up simple obstacle courses for your kid to navigate, or racing against a clock to keep them motivated and excited to learn.

Don’t forget to teach safe riding habits, too

Teaching a kid to ride a bike isn’t only about guiding them through balance and pedaling. They also have to learn about safety. First is the importance of wearing a helmet anytime they’re out riding. One analysis found that wearing a helmet could reduce the risk of head injuries by 45 percent, brain injuries by 33 percent, facial injuries by 27 percent, and deaths by 29 percent. I’ve seen the value of a helmet in action—one of my kids took a pretty bad balance bike spill and landed on the road on his face. The rim of the helmet saved him from no more than a split lip. Without the helmet, I’m sure it would have been a trip to the hospital instead. 

[Related: Essential bike maintenance tips everyone should know]

Helmets are most effective when they fit properly. The National Highway Traffic Safety Administration has a clear and detailed document on how to adjust a helmet to an adult’s or child’s head. Basically, you want the helmet level on the head, low on the forehead, the “V” of the straps tight under the ears, and the chin strap snug enough that only a finger or two can fit under it. If a helmet is too loose, or in the wrong position, it may not do its job.  

The other important safety lesson kids need to learn are the rules of the road, both Yip and Ballin say. Make sure to teach them that they should always ride with the flow of traffic rather than against, why we stop at intersections, what stop lights and road signs mean, and who has the right of way in what situations. Even if they’re years away from being old enough to ride alone, it’s good to drill that knowledge into their heads from the start.  

Learning in a group can help kids get over their fear

If your child is struggling, or too afraid to hop on the bike, getting more people involved might be helpful, Yip says. If they have a friend, neighbor, or relative who can already ride a bike, try to get them together so your child can mimic what they’re doing. Sometimes seeing someone close to their age doing a feared activity can be all the motivation a kid needs to try something new.  

Classes are another option. In addition to providing people for your child to watch, sometimes kids need to learn from someone other than a parent or caretaker, particularly if you find yourselves getting frustrated by a lack of progress. Classes can also be a validating experience for kids who might be embarrassed that they don’t know how to ride yet, Yip says. They’ll see people of all ages who are also learning to ride, and realize that there’s no shame in not having mastered the skill yet.

And once your child is up and running on their bike, so to speak, biking groups and classes are a great way to expand their, and your, knowledge about cycling. Whether it’s getting more comfortable with street riding and racing, diving into the exciting world of BMX, or heading up into the hills for some mountain biking, there are a ton of ways to expand their skills and keep them in the saddle.

The post Pro tips for teaching a kid how to ride a bike appeared first on Popular Science.

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Gasoline use isn’t falling fast enough. Targeting ‘superusers’ could help. https://www.popsci.com/environment/gasoline-super-users-fossil-fuel-climate/ Sat, 27 May 2023 23:00:00 +0000 https://www.popsci.com/?p=543506
Demand for gasoline this year could end up at around 366 million gallons per day, down 7 percent from 2018. But that's still not fast enough.
Demand for gasoline this year could end up at around 366 million gallons per day, down 7 percent from 2018. But that's still not fast enough. DepositPhotos

America may have hit 'peak gasoline,' but the fossil fuel’s decline is still too slow to meet climate goals.

The post Gasoline use isn’t falling fast enough. Targeting ‘superusers’ could help. appeared first on Popular Science.

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Demand for gasoline this year could end up at around 366 million gallons per day, down 7 percent from 2018. But that's still not fast enough.
Demand for gasoline this year could end up at around 366 million gallons per day, down 7 percent from 2018. But that's still not fast enough. DepositPhotos

This story was originally published by Grist.

Given America’s penchant for gas-guzzling pickup trucks and SUVs, you might be surprised to learn that the country’s gasoline usage is going down, maybe for good. Even though only about 1 percent of cars on the road today are electric, some say the United States has already passed “peak gasoline” — the pivotal moment when the fuel’s use finally begins a permanent decline after a century of growth. 

Gasoline consumption has not fully bounced back to levels seen before local governments began lockdowns in the face of the COVID-19 pandemic, when millions of people stopped driving to work every day. Back in the pre-pandemic year of 2018, Americans burned an average of 392 million gallons of gasoline, more than one gallon every day for every person in the country. Since that annual peak, a combination of remote work, high gas prices, and fuel economy standards that require that new cars get better gas mileage have diminished demand. To stay profitable, oil refiners have cut back on production.

Demand for gasoline this year could end up at around 366 million gallons per day, down 7 percent from 2018, according to analysis provided to Grist by the Rocky Mountain Institute, a clean energy research and advocacy nonprofit. With recent policies like the Inflation Reduction Act offering a tax credit of up to $7,500 for an electric vehicle and the Biden administration’s new emissions rules — which require two-thirds of new passenger vehicles be electric by 2031 — gasoline demand could decrease almost a quarter by 2030, according to the research group, compared to current levels.

That’s still not fast enough to hit important targets to slash greenhouse gases, says Janelle London, the co-executive director of Coltura, an organization advocating for the end of gasoline. “Scientists are saying that we have to cut emissions from all sources in half by 2030 to avoid the worst impacts of climate change, and gasoline use just is not on track,” she said. The majority of the country’s transportation-related carbon emissions come from burning gasoline in cars, trucks, and SUVs. And transportation is currently the country’s largest source of pollution. London says that the fastest way to cut consumption is to target electric vehicle incentives toward “gasoline superusers”: the 10 percent of population that drives the most and guzzles nearly a third of the country’s gas. 

That’s not who’s buying electric vehicles right now. The typical EV driver is likely to be among those who drive the least, London said. “The only way we’re going to solve this near-term problem is to get the biggest gasoline users to switch to EVs, like, now, as soon as possible.” California, for instance, is on track for a 10 percent cut in gasoline use by 2030, far from its goal of halving gasoline use by the end of the decade. If superusers in California bought electric vehicles before everyone else, it would result in a steep, 43 percent drop that would move the state much closer to its climate goals.

London says that federal tax credits in the Inflation Reduction Act “could be much better designed,” and she’s not the only one who thinks so. Ashley Nunes, director of federal climate policy at the Breakthrough Institute, an environmental research center, says the credits aren’t necessarily prompting people to give up their gas-powered cars. They’re just adding another vehicle. An estimated 44 percent of households with an electric vehicle have at least two other cars, if not three — nearly all of which run on gas. “First and foremost, I think that electric vehicle incentives should not be given to people who are not turning in their gasoline-powered car,” Nunes said. “We’re not paying for you to add another car in your garage.” 

In a study published Wednesday in the journal Sustainable Cities and Society, Nunes and other researchers found that offering blanket subsidies for electric vehicles isn’t an economically effective way of reducing carbon emissions. Targeting subsidies at households with only one vehicle and toward taxi or Uber drivers produces more bang for the federal buck. “You want to target people who drive their cars a lot, because that’s where you see the real emission benefits associated with EVs,” Nunes said.

In some states, there’s new interest in getting frequent drivers to switch to EVs. A bill in Vermont, for instance, would allow the Burlington Electric Department to use funds to help gasoline superusers buy electric vehicles. It passed through the state legislature this month and is headed to Republican Governor Phil Scott’s desk. If signed, it’ll be the first legislation in the country to offer EV incentives specifically to “superusers,” a term coined by Coltura two years ago.

Coltura makes the case that converting the biggest gasoline users into EV owners means less money for gas stations and more for power providers. “Utilities have a huge interest in getting these superusers to switch to EVs,” London said. “Suddenly, they’d be using a lot of electricity, right?” Someone who uses 1,000 gallons of gasoline a year, if switched to an EV, would use about 9,000 kilowatts of extra electricity each year, according to Coltura. Using the average cost of gasoline and electricity in February 2023, that means they’d spend about $1,150 on electricity instead of $3,390 on gas, saving roughly $2,000 a year.

There’s another effort underway in California that would allow superusers to receive more funding, in addition to federal tax credits, to switch. Assembly Bill 1267 would have directed the California Air Resources Board to institute a program that maximizes the reduction in gasoline — and thus the climate impact — for each dollar spent on incentives for superusers. After passing unanimously through two committee hearings this spring with bipartisan support, the bill died last week. (London said that it will likely be reintroduced next year.) The state already has a hodgepodge of programs that help lower-income residents buy electric cars — including one that offers grants of up to $9,500 to replace a gas guzzler with a cleaner vehicle — though they have suffered from a lack of funding.

The superusers who make less than the state’s median income wind up spending 10 percent of their income just on putting gas in their car. “People say you can’t afford an EV,” London said. “If you’re a superuser, you can’t afford to keep paying for gasoline.” 

The average price of an electric car is about $59,000, higher than the $48,000 average for all cars. But London says that average EV cost is “irrelevant” since there are cheaper options on the market. “The question is, is there an EV at the price point that I can afford one?” she asks. While the cheapest EV model, the Chevy Bolt, is being discontinued, a new Nissan Leaf starts at just under $30,000, and tax credits can knock the price down further.

Clayton Stranger, a managing director at the Rocky Mountain Institute, said that there was a “compelling” economic case to target superusers with EV incentives, though the savings alone might not be enough to make people switch: The infrastructure needs to be built in rural places to make people feel comfortable driving an electric car, giving them confidence there’s a place to charge if they need it.

And then there’s the other aspect of ending the gasoline era: getting Americans out of their cars and into buses and trains, and onto bike lanes and sidewalks. “We also need to significantly reduce the amount of driving that is done,” Stranger said. “EVs alone don’t get us all the way there.”

This article originally appeared in Grist at https://grist.org/transportation/peak-gasoline-superusers-electric-vehicle-incentives/. Grist is a nonprofit, independent media organization dedicated to telling stories of climate solutions and a just future. Learn more at Grist.org

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How to get rid of the giant ads blocking your favorite websites https://www.popsci.com/diy/remove-overlay-ad/ Sat, 27 May 2023 15:00:00 +0000 https://www.popsci.com/?p=543862
Person in a suit and tie sitting outside in front of their computer, looking frustrated.
If you've ever spent more time than you wanted trying to find that "close" button, you know how he feels. Andrea Piacquadio / Pexels

You'll never have to look for that elusive "X" again.

The post How to get rid of the giant ads blocking your favorite websites appeared first on Popular Science.

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Person in a suit and tie sitting outside in front of their computer, looking frustrated.
If you've ever spent more time than you wanted trying to find that "close" button, you know how he feels. Andrea Piacquadio / Pexels

In ancient times (i.e. the early 2000s) scammy websites would automatically open multiple windows with ads, which you then had to close one by one. It was obnoxious, which is why now every major browser stops sites from opening new windows by default. But websites found a workaround to show you ads or get you to sign to their newsletter: the overlay.

You’ve surely seen them, even if you never had a word for it before. Overlays cover up what you’re trying to read, watch, or access, generally asking you for an email address or some other piece of personal information. Most times their purpose is relatively harmless, but sometimes these boxes have dark patterns: deliberately confusing design that manipulates users to collect their personal information.

Fortunately, you can remove overlays by editing the HTML code of a webpage. You can do this manually in your browser if you want, but it’s a lot easier to use an extension especially designed for the job.

The single-click option: BehindTheOverlay

BehindTheOverlay is free and works on Firefox and Google Chrome, which should also allow Edge and Opera users to download and install it. The extension is extremely easy to use: just click its icon whenever you see an overlay and it should disappear. 

[Related: 5 browser extensions that will keep you from drowning in tabs]

If you prefer, you can also use the app’s keyboard shortcut to trigger the extension: Ctrl + Shift + X on Windows, or Cmd + Shift + X on MacOS. If you’re a Chrome user, you can ditch the default key combo and set up your own. Head over to the extension settings page by clicking on the puzzle piece icon in the top right corner of the interface and choosing Manage extensions, or by typing Chrome://Extensions into the address bar. Click the three-line menu in the top-left corner of the screen and in the emerging sidebar, choose Keyboard shortcuts. Find the BehindTheOverlay extension and click the pen icon under it to edit the shortcut. 

This is a minimalistic tool but this level of simplicity has its downsides. There’s no way to automatically remove overlays, and if the extension doesn’t work on a particular site there’s not a lot you can do. Still, BehindTheOverlay works in most cases, which is why it’s worth trying out first.

The automated but finicky option: PopUpOff

PopUpOff is also free and works on Chrome, Edge, Opera, and Firefox. It requires more configuration than BehindTheOverlay, but rewards you by automatically disabling these obnoxious layers. This extension also allows you to set a default approach for every website you visit: Aggressive, Moderate, or Dormant.

The Aggressive mode will remove basically anything that follows you as you scroll. In some cases, this could even remove page elements such as headers, which is why there’s also a Moderate option. This is the extension’s default and tries to only remove the annoying layovers. Finally, there’s Dormant mode, which does nothing and it’s useful when the extension seems to be breaking the website you’re looking at.

PopUpOff is certainly the kind of tool you’ll need to spend some time tweaking, but once you’re done overlays will be a thing of the past and you won’t even think about them anymore.

Reading mode or Postlight Reader

Most modern browsers have some sort of reader mode: Firefox, for example, offers Reader View, while Microsoft Edge offers Immersive Reader, and Safari has Reader. This feature extracts the article from whatever website you’re looking at, allowing you to read without seeing any advertisements, sidebars, or other distractions. That includes overlays, meaning that reader modes are an overall great tool for avoiding them.

[Related: 7 things Safari can do that Google Chrome can’t]

Google, an advertising company, does not offer a reader mode in Chrome—at least, not without doing some digging through hidden settings. If you use the Big G’s browser, the Postlight Reader extension can add a reader mode to Chrome and even allow you to configure the font and text size of the article you’re reading.

The post How to get rid of the giant ads blocking your favorite websites appeared first on Popular Science.

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Save more than 60 percent on a pair of drones equipped with 4K cameras https://www.popsci.com/sponsored-content/4k-drone-duo-deal/ Sat, 27 May 2023 13:00:00 +0000 https://www.popsci.com/?p=543057
A drone flies over the ocean
Stack Commerce

Pick up a pair of impressive drones at a surprisingly low price.

The post Save more than 60 percent on a pair of drones equipped with 4K cameras appeared first on Popular Science.

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A drone flies over the ocean
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Offering high-quality aerial footage and live monitoring, the Alpha Z PRO 4K and Flying Fox 4K Wide-Angle Dual-Camera Drone Bundle is available at only $139.97 (reg. $398) through May 31.

For many, Memorial Day marks the unofficial start of summer. So in recognition of the holiday, we’re offering a limited-time discount on a pair of drones set to launch adventures this summer and beyond.

Through May 31, pick up the Alpha Z PRO 4K and Flying Fox 4K Wide-Angle Dual-Camera Drone for only $139.97 (reg. $398) with no coupon necessary. That’s two new ways to explore the skies at one low price, and this price drop presents an ideal opportunity to see what these drones can accomplish.

These drones are equipped with 4K cameras in the front and feature 720p cameras underneath, providing a new perspective while capturing clear images. These drones offer plenty of options, from professional purposes such as real estate or video production to sharing the simple joys of flight with a child.

Easy navigation can be achieved with a four-channel mode for ascending, descending, moving forward and backward, moving laterally, and rolling 360 degrees. In addition, they feature a one-key automatic return for a no-fuss finish when your flying is done. No wonder TheNextWeb.com raved about one of the drones: “With sturdy construction, a host of cool flying features, and a gorgeous 4K camera, the Alpha Z is a stellar addition to any drone fleet.”

Flight can be sustained for 10 minutes, and WiFi connectivity lets you receive real-time transmission and monitoring on the ground through a corresponding app. Lightweight builds and foldable arms make these drones manageable for travel and storage.

Accessories with this bundle include batteries, protective covers, transmitters, and USB charging cables. Soon after delivery, you’ll be ready to take a grand aerial look at your surroundings.

Save big on a pair of drones that are equipped with high-quality cameras and deliver the advanced features you love while keeping operating procedures simple.

Purchase the Alpha Z PRO 4K and Flying Fox 4K Wide-Angle Dual-Camera Drone Bundle for only $139.97 (reg. $398) through May 31 at 11:59 p.m. PST.

Prices subject to change.

The post Save more than 60 percent on a pair of drones equipped with 4K cameras appeared first on Popular Science.

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Plant-covered roofs could help chill Brazil’s heat-stricken favelas https://www.popsci.com/environment/brazil-favela-green-roof-heat/ Fri, 26 May 2023 22:00:00 +0000 https://www.popsci.com/?p=543514
Favela do Alemao in Rio de Janeiro. Low-income urban communities like these tend to lack greenery and are more likely to face extreme heat than their wealthier or more rural counterparts.
Favela do Alemao in Rio de Janeiro. Low-income urban communities like these tend to lack greenery and are more likely to face extreme heat than their wealthier or more rural counterparts. Ratao Diniz/Brazil Photos/LightRocket via Getty Images

How one group in Rio de Janeiro teamed up with researchers to adapt green roof technology for their community.

The post Plant-covered roofs could help chill Brazil’s heat-stricken favelas appeared first on Popular Science.

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Favela do Alemao in Rio de Janeiro. Low-income urban communities like these tend to lack greenery and are more likely to face extreme heat than their wealthier or more rural counterparts.
Favela do Alemao in Rio de Janeiro. Low-income urban communities like these tend to lack greenery and are more likely to face extreme heat than their wealthier or more rural counterparts. Ratao Diniz/Brazil Photos/LightRocket via Getty Images

This article was originally featured on Undark.

Sweat was dripping down Luis Cassiano’s face. It was 2012, and Rio de Janeiro’s hottest day to date: At nearly 110 degrees Fahrenheit, the seaside city had just barely beaten its previous record set in 1984.

Cassiano and his mother, then 82, had lived in the same narrow four-story house since they moved to Parque Arará, a favela in northern Rio, some 20 years earlier. Like many other homes in the working-class community — one of more than 1,000 favelas in the Brazilian city of over 6.77 million — its roof is made of asbestos tiles. But homes in his community are now often roofed with corrugated steel sheets, a material frequently used for its low cost. It’s also a conductor of extreme heat.

While the temperatures outside made his roof hot enough to cook an egg — Cassiano said he once tried and succeeded — inside felt worse. “I only came home to sleep,” said Cassiano. “I had to escape.”

Parque Arará mirrors many other low-income urban communities, which tend to lack greenery and are more likely to face extreme heat than their wealthier or more rural counterparts. Such areas are often termed “heat islands” since they present pockets of high temperatures — sometimes as much as 20 degrees hotter than surrounding areas.

That weather takes a toll on human health. Heat waves are associated with increased rates of dehydration, heat stroke, and death; they can exacerbate chronic health conditions, including respiratory disorders; and they impact brain function. Such health problems will likely increase as heat waves become more frequent and severe with climate change. According to a 2021 study published in Nature Climate Change, more than a third of the world’s heat-related deaths between 1991 and 2018 could be attributed to a warming planet.

The extreme heat worried Cassiano. And as a long-time favela resident, he knew he couldn’t depend on Brazil’s government to create better living conditions for his neighbors, the majority of whom are Black. So, he decided to do it himself.

While speaking with a friend working in sustainable development in Germany, Cassiano learned about green roofs: an architectural design feature in which rooftops are covered in vegetation to reduce temperatures both inside and outdoors. The European country started to seriously explore the technology in the 1960s, and by 2019, had expanded its green roofs to an estimated 30,000 acres, more than doubling in a decade.

“Why can’t favelas do that too?” he recalled thinking.

Scientific research suggests green infrastructure can offer urban residents a wide range of benefits: In addition to cooling ambient temperatures, they can reduce stormwater runoff, curb noise pollution, improve building energy efficiency, and ease anxiety.

More than 10 years since that hot day in 2012 — and several heat records later — Cassiano heads Teto Verde Favela, a nonprofit he started to educate residents about how they can build their own green roofs. Favela construction comes with its own set of technical peculiarities and public policy problems, and Cassiano enlisted the help of local scientists to research best practices and materials. But covering the roofs of an entire neighborhood requires time and — even with cost-reducing measures — a big budget.

His work has been steady, but slow. He is still far from converting every roof in his community of some 20,000 people. And with the effects of climate change arriving quickly, time may not be on their side. Still, Cassiano sees Teto Verde Favela as a template for others in similar situations around the world.

“I started to imagine the whole favela with green roofs,” he said. “And not just this favela, but others, too.”


Green roofs have been around for thousands of years, but it wasn’t until the 1960s and 70s that the modern-day version really took off, thanks to new irrigation technology and protection against leaks developed in Germany.

The technology cools local temperatures in two ways. First, vegetation absorbs less heat than other roofing materials. Second, plant roots absorb water that is then released as vapor through the leaves — a process known as evapotranspiration that offers similar cooling effects to how sweat cools human skin.

Green roofs can also help prevent flooding by reducing runoff. A conventional roof might let 100 percent of rain run off, allowing water to pour into streets, but a green roof, depending on its structure and slope, “can reduce this runoff generation rate to anywhere from 25 to 60 percent,” Lucas Camargo da Silva Tassinari, a civil engineer who researches the effectiveness of green roofs, wrote in an email to Undark.

Such interventions could be helpful in Brazil, where flooding is an ongoing issue, and temperatures are rising. A 2015 study showed that land surface temperatures in the city’s heat islands had increased 3 degrees over the previous decade. But greenery appears to help: Researchers from the Federal Rural University of Rio de Janeiro, or UFRJ, found a 36 degree difference in land surface temperatures between the city’s warmest neighborhoods and nearby vegetated areas.

In Parque Arará, Cassiano said the temperature regularly rises well above what is registered as the city’s official temperature, often measured in less dense areas closer to the ocean. He decided his community’s first green roof prototype would be built on his own home. As he researched the best way to get started, Cassiano came across Bruno Rezende, a civil engineer who was looking at green roofs as part of his doctoral thesis at UFRJ. When he told him about his idea, Rezende came to Parque Arará right away.

There isn’t necessarily a one-size-fits-all approach to green roofs. A designer must take into account each location’s specific climate and building type in order for the project to not only be effective, but also structurally sound.

The problem is that green roofs can be quite heavy. They require a number of layers, each serving its own unique purpose, such as providing insulation or allowing for drainage. But Parque Arará, like all of Rio’s favelas, wasn’t built to code. Homes went up out of necessity, without engineers or architects, and are made with everything from wood scraps and daub, to bricks, cinder blocks, asbestos tiles, and sheet metal. And that informal construction couldn’t necessarily hold the weight of all the layers a green roof would require.

After looking at Cassiano’s roof, Rezende’s first suggestion was to cover it with rolls of bidim, a lightweight nonwoven geotextile made of polyester from recycled drink bottles. Inside those rolls of bidim, leftover from a recent construction project, they placed several types of plants: basket plants, inchplants, creeping inchplants, and spiderworts. They set the rolls in the grooves of the asbestos roof, and then created an irrigation system that dripped water down.

With a cheap way to install lightweight green roofs, Rezende brought Cassiano to meet his advisers and present what they had found. The university agreed that the project showed such promise that it would provide materials for the next step, Cassiano said.

Once the plants on Cassiano’s roof had time to grow, Rezende and André Mantovani, a biologist and ecologist at Rio’s Botanical Gardens, returned to see what effect it had on Cassiano’s home. With several sensors placed under the roofs, the researchers compared the temperature inside his house to that of a neighbor’s for several days. (The researchers intended the study to last longer, but the favela’s unreliable energy system kept cutting power to their sensors.)

Despite the study’s limitations, the results were encouraging. During the period that researchers recorded temperatures, Cassiano’s roof was roughly 86 degrees. His neighbor’s, on the other hand, fluctuated between 86 and 122 degrees. At one point, the roofs of the two homes differed by nearly 40 degrees.

For Cassiano, the numbers confirmed what he suspected: If he wanted to make a difference, he needed to put green roofs on as many homes as possible.

“When we talk about green roofs, we think about one house. But that’s not enough,” said Marcelo Kozmhinsky, an agronomic engineer in Recife who specializes in sustainable landscaping. “When you start to imagine a street, a block, a neighborhood, and a city or a community as a whole with several green roofs, then you have something. Because it’s about the collective. It benefits everyone.”

But thinking on a larger scale comes with a host of new challenges. In order for a green roof to be safe, a structure has to be able to support it, and studying the capacity of individual buildings takes time. And even with low-cost materials such as bidim, installing green roofs on hundreds or thousands of homes requires significant funds.

“The biggest obstacle is the cost,” said Bia Rafaelli, an architect based in São Paulo who has worked with communities like Cassiano’s to teach them about sustainable building options. “To make this all viable on a large scale,” installing green roofs on all the favelas, she said, “there would need to be sponsorship from companies or help from the government.”


While some municipalities in Brazil have legislation requiring green roofs on new construction when possible, Rio de Janeiro does not. A bill that would create a similar law to those in other cities has been at a standstill in Rio’s city council since May 2021.

Rio does, however, incentivize builders to install green roofs and other sustainable options — like solar panels and permeable paving. But such efforts don’t typically benefit residents of the favelas, where most building is done informally, without construction companies looking to legislation for guidelines and benefits.

In addition to red tape and other bureaucratic hurdles, any project related to the favelas also faces longstanding racism. According to a 2021 study conducted by Instituto Locomotiva, Data Favela, and Central Única das Favelas, 67 percent of the population in favelas across Brazil is Black. That’s disproportionately higher than the country’s general population, which is 55 percent Black.

“Public policy doesn’t reach” favelas, said Diosmar Filho, a geographer and senior researcher at the research association Iyaleta, where he heads studies on inequality and climate change. The working-class communities, he said, are heat islands because of environmental racism — the disproportionate impact of environmental hazards on people of color — which has left much of Brazil’s Black population with inadequate housing and health care, both of which are aggravated by the effects of climate change.

Such trends aren’t isolated to Brazil. A 2020 study published in the journal Landscape and Urban Planning found that White neighborhoods in South African cities had disproportionately higher access to urban green infrastructure, including parks and green roofs — which the authors dubbed a “green Apartheid.” In a 2019 study, researchers at the University of Michigan used a spatial analysis to determine that green roofs were predominantly located in the city’s downtown, which they noted was more White and affluent than the rest of the city. (The study had limited data, however, and only analyzed 10 green roofs.)

Without support from the government or other authorities, Filho said, Black people often turn to each other for help. “It’s always the Black population that’s producing quality of life for the Black population,” he said, referring to people like Cassiano and projects like Teto Verde Favela.

“The actions of Teto Verde would be a great point of reference for urban housing policy for the reduction of impacts of climate change,” said Filho. But when municipalities deny people of color the right to safe housing and ways to push back against climate change, he added, “that’s when it becomes a case of environmental racism.”


Back in Rio, Cassiano continues to collaborate with research scientists and students at UFRJ. Together, they test new materials and methods to improve on the initial green roof prototype first installed on his home more than 10 years ago. To adapt for favela construction, his primary focus has been to reduce cost and reduce weight.

Instead of using an asphalt blanket as a layer of waterproof screening, Cassiano uses a vinyl sheet sandwiched between two layers of bidim. This means the cost of roofs installed by Teto Verde Favela is roughly 5 Brazilian reais, or $1, per square foot; conventional green roofs, though difficult to estimate in cost, can run as much as 53 Brazilian reais ($11) for the same amount of space. His roofs also started out hydroponic, meaning no soil was used, in order to decrease their weight.

Cassiano’s mother, now 93, loves caring for the plants on their roof. It not only helps lower the temperature in their home on hot days and retains rainwater to help prevent flooding in a downpour, but Cassiano said it also gives their mental health a much-needed boost.

“Now I couldn’t live here in this house without this green roof,” said Cassiano. “It makes me so happy when I see birds, when I see butterflies, when I see a flower or a fruit,” he added.

“It’s so much more than I ever imagined.”


Jill Langlois is an independent journalist based in São Paulo, Brazil. Her work has appeared in The New York Times, The Guardian, National Geographic, and TIME, among others.

This article was originally published on Undark. Read the original article.

Global Warming photo

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The best Memorial Day generator deals: Solar, electric, and gas-powered models https://www.popsci.com/gear/best-memorial-day-amazon-generator-deals-2023/ Fri, 26 May 2023 12:04:08 +0000 https://www.popsci.com/?p=543237
A lineup of solar generators on a blue gradient background
Amanda Reed

Generate some more money in your pocket with these Memorial Day power station deals on Amazon.

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A lineup of solar generators on a blue gradient background
Amanda Reed

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A generator is a must-have if you’re RV-ing, camping, or just spending time away from an outlet. A portable power station helps you stay charged, which is incredibly important if your phone is the only thing connecting you to modern society. Plus, they’re incredibly handy in a power outage. We found plenty of generators on sale for Memorial Day, from tried-and-true gas generators to newfangled solar generators.

Jackery Solar Generator 1000, 1002Wh Capacity with 2 SolarSaga 100W Solar Panels $1,299 w/ coupon (Was $1,649)

Jackery

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This Jackery solar generator-panel combo package has everything you need to get started on sustainably powering burners, laptops, drones, and cell phones when you’re not near a wall outlet. In fact, it can power up to eight devices at a time. And, the included solar panels can bring it up to full charge within 6 hours—if you’d rather charge it beforehand via AC outlet, that process is shortened to 5.5. hours. Talk about timely.

If you decide to get a beefier Jackery generator, like the Jackery Solar Generator 2000 PRO, you’ll get a free Jackery dual-sided 80W solar panel when you spend over $2,000 on Jackery products. That’s a $249 value right there, and your savings only get bigger when you combine it with the $150-$350 coupons Jackery is offering on Amazon.

Here are more generator deals to shop this Memorial Day:

Solar generators

Gas generators

Dual-fuel generators

Inverter generators

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The best Memorial Day kitchen & appliance deals cook up major savings https://www.popsci.com/gear/best-memorial-day-amazon-kitchen-deals-2023/ Fri, 26 May 2023 12:01:46 +0000 https://www.popsci.com/?p=543240
The best Memorial Day kitchen & appliance deals on a blue gradient background
Amanda Reed

Warm up to big savings on air fryers, espresso makers, blenders, and more kitchen gadgets this Memorial Day.

The post The best Memorial Day kitchen & appliance deals cook up major savings appeared first on Popular Science.

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The best Memorial Day kitchen & appliance deals on a blue gradient background
Amanda Reed

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Summer is just around the corner, meaning backyard cookouts and outdoor parties with family and friends. You can save on the gear you’ll need for more than a seasons-worth of gatherings by shopping the best sales on kitchen items and appliances. From an outdoor pizza oven to a mug that has a basketball hoop, we have you covered.

Ooni Fyra 12 $244.30 (Was $349)

Ooni

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Ooni is hosting a 30% off sale on select pizza ovens and accessories for Memorial Day Weekend, and you can score a $105 discount on the entry-level Fyra 12. This pizza oven runs on wood pellets and can reach temperatures of up to 950 Fahrenheit, necessary for cooking a traditional Neapolitan pie in about a minute. The Fyra 12 reaches its maximum temperature in about 15 minutes so that you can get cooking quickly—you don’t want to leave your guests hungry. If you’re not the one hosting the pizza party, the Fyra 12 is only 22 pounds, so you can easily grab it and go with ease. If you’ve been curious about getting a pizza oven but uncomfortable committing to one due to its price and typical size, don’t skip Ooni’s sale. The company even offers a 60-day guarantee, so you can knock out a few pies without making a full commitment.

Here are more Memorial Day kitchen and appliance deals:

Microwaves

Toasters & toaster ovens

Air fryers & pressure cookers

Blenders, food processors, & stand mixers

Coffee & espresso machines

Appliances

Pots, pans, and utensils

Miscellaneous

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Here are 33 Memorial Day Weekend deals under $100 https://www.popsci.com/gear/best-memorial-day-amazon-deals-under-100-2023/ Fri, 26 May 2023 16:05:06 +0000 https://www.popsci.com/?p=544096
The Best Memorial Day Deals Under $100
Brandt Ranj / Popular Science

It's all about spending less than a Benjamin, baby ...

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The Best Memorial Day Deals Under $100
Brandt Ranj / Popular Science

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Memorial Day Weekend serves as the unofficial kickoff to summer. There are also deals. A lot of deals. If you’re not interested in spending a lot of money on a single big-ticket item, though, we feel you. That’s why we’ve combed through the web to find the best gear you can get on sale for under $100. In some cases, you can spend under $10. We’ve broken the deals into categories for your convenience, and there’s a little something for everybody, whether you plan to spend the summer outdoors or inside. So before you check out for the long weekend, check out these deals:

The best Memorial Day tech deals

The best Memorial Day appliance deals

The best Memorial Day kitchen deals

The best Memorial Day outdoor deals

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Neuralink human brain-computer implant trials finally get FDA approval https://www.popsci.com/technology/neuralink-fda-approval/ Fri, 26 May 2023 18:00:00 +0000 https://www.popsci.com/?p=544092
Elon Musk in meeting wearing suit
Neuralink promised more information on clinical trials 'soon.'. CHANDAN KHANNA/AFP via Getty

The FDA previously rebuffed Neuralink's initial application.

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Elon Musk in meeting wearing suit
Neuralink promised more information on clinical trials 'soon.'. CHANDAN KHANNA/AFP via Getty


Elon Musk’s brain-computer interface company Neuralink announced on Thursday evening that it has received FDA approval to begin conducting human trials. News of the major step arrives after years of research and numerous regulatory hurdles, as well as multiple investigations into potential safety and animal ethics violations.

“This is the result of incredible work by the Neuralink team in close collaboration with the FDA and represents an important first step that will one day allow our technology to help many people,” Neuralink wrote via its Twitter account on Thursday evening, with Musk retweeting the message alongside his congratulations.

[Related: Elon Musk hopes humans will test Neuralink brain implants in the next six months.]

Neuralink aims to create a line of computer implants that connect directly with users’ brains, initially in order to restore patients’ vision and help those with a “Stephen Hawking-type [neurological] situation,” explained Musk during a Neuralink presentation last November. For the majority of his life, Hawking suffered from amyotrophic lateral sclerosis (ALS), which ultimately resulted in a near total body paralysis.

Neuralink first released footage in 2019 of a successful interfacing with rat test subjects. The company subsequently moved on to similar implants for sheep, pigs, and monkeys. In 2021, the company released footage of one of its test macaques playing Pong via a prototype “brain-machine interface.” Late last year, however, an exposé from Reuters revealed the company was under a federal investigation stemming from “internal staff complaints” regarding alleged animal-welfare violations, some of which pertained to over alleged 1,500 dead test subjects. Shortly thereafter, another report via Reuters indicated the FDA had rebuffed the company’s initial requests to begin human test trials, citing concerns over devices potentially overheating, as well as the possibility of damaging brain tissue upon implant removal.

[Related: Employees say Neuralink’s ‘hack job’ tests killed roughly 1,500 animals since 2018.]

As The Verge and DigitalTrends noted on Thursday, Neuralink is not the first company to receive regulatory greenlight on human brain-computer interface trials. Earlier this year, a company called Synchron—backed by the likes of Jeff Bezos and Bill Gates—announced it had successfully implanted their “Stentrode” neuroprosthesis device in four human subjects. BrainGate’s device has also previously allowed a paralyzed man to convert his imagined handwriting into text to communicate.

Per Neuralink, recruitment is not yet open for clinical trials, but the company promised “more information on this soon.” Last November, Musk stated during a company show-and-tell that “You could have a Neuralink device implanted right now and you wouldn’t even know,” adding that, “ Hypothetically in one of these demos, in fact… I will.”

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The best Memorial Day fitness deals let you jump into summer activities and save https://www.popsci.com/gear/best-memorial-day-amazon-fitness-deals-2023/ Fri, 26 May 2023 12:19:03 +0000 https://www.popsci.com/?p=543181
Save big on gear with these Memorial Day fitness deals.

Break a sweat without breaking the bank with these deals, like 20% on an inflatable kayak.

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Save big on gear with these Memorial Day fitness deals.

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The unofficial kickoff to summer is a great time to get active, indoors or out. The warmer weather invites barbecues and relaxation. So whether you’re training for a race, looking to get out on the water for the first time, or improving your putt, these Memorial Day fitness deals will help you prepare, have fun, and save money while you’re doing it.

Aquaglide Deschutes Inflatable Kayak $543.89 (was $679.99)

Inflatable kayaks are appealing because they’re generally much easier to transport than traditional models. But you shouldn’t have to sacrifice performance for portability. Aquaglide’s Deschutes Inflatable Kayak provides a solution: It’s both a cinch to toss into your car and includes features that paddlers are looking for. Plus, it’s currently available at its lowest price in months—just in time for the weather and waters to warm up.

This single-person kayak weighs just 18 pounds and fits into an included duffle bag. You’ll need a 12-volt air pump to inflate the three chambers of this open cockpit model, which is not included. Once inflated, this 11-foot kayak is designed with handles for carrying, a cushioned, quick-release seat, and adjustable footrests for a comfortable ride. The package also includes a quick-release fin, cockpit drain, and repair kit should you encounter rough waters. 

More outdoor fitness deals

Best home gym equipment deals

Best smartwatch and wearable deals

Best fitness accessories

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Zoo’s bird-feeder-like device encourages gorillas to forage for snacks https://www.popsci.com/technology/forage-feeder-gorillas/ Fri, 26 May 2023 17:00:00 +0000 https://www.popsci.com/?p=544042
Young gorilla eating plant leaves in tree
Recreating gorillas' naturally foraging environments could improve their mental wellbeing and diet. Adam Thompson/Zoo ATL

An affordable, open-source device spreads the apes' meals across their enclosure to promote a more natural foraging environment.

The post Zoo’s bird-feeder-like device encourages gorillas to forage for snacks appeared first on Popular Science.

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Young gorilla eating plant leaves in tree
Recreating gorillas' naturally foraging environments could improve their mental wellbeing and diet. Adam Thompson/Zoo ATL

Apart from being naturally cliquey, gorillas are born foragers. In the wild, the great apes are regularly on the move in search of fruits, vegetables, and bamboo shoots; a habit that can become difficult to recreate when living within a zoo setting. At Zoo Atlanta, for example, human workers generally provided gorillas with their meals at certain scheduled times and locations.  But an affordable new device could provide a much more naturalistic feeding regime for the apes—once they get used to it.

[Related: Gorillas can be cliquey, too. Here’s what that says about our own social lives.]

Recently, a team of mechanical engineering students and alumni at Georgia Tech began developing and testing ForageFeeder, a $400 machine partly inspired by deer feeders that can disperse gorillas’ their meals at random intervals and locations throughout the day. Suspended about 15 feet above the ground, ForageFeeder drops food such as carrots, sweet potatoes, and turnips from a bucket into a tray, after which time a rotor shoots the snacks in a circular motion as far as 30 feet away from the machine.

Recreating animals’ natural habitats and environments are crucial to ensuring zoo residents’ psychological and physical wellbeing, while also encouraging exercise and mental stimulation. Much like modern humans, zoo animals frequently deal with obesity due to a lack of activity. Tools and techniques such as the ForageFeeder not only promote Zoo Atlanta gorillas’ movement, but better simulate their natural foraging world.

Zookeepers at Zoo Atlanta have utilized the ForageFeeder on-and-off in their gorilla enclosure since last August. Although the primates are now largely used to its appearance, it wasn’t always the case. A video showcasing the gorillas’ first encounter with ForageFeeder depicts pretty much what one might expect—that is to say, some extremely befuddled apes. Over time, however, Zoo Atlanta’s residents have grown more used to the device.

“I’m confident we’re going to see statistical data that confirms what we’re already seeing: more foraging behavior,” Josh Meyerchick, senior keeper of primates at Zoo Atlanta and one of the research paper’s co-authors, said earlier this month.

[Related: Zoo animals are getting COVID vaccines made specially for them.]

That said, the team behind ForageFeeder aren’t waiting for gorillas to get with the program. Plans for the machine are currently open source online, and easily modifiable to adapt for countless other animal species’ diets, feeding times, and other particularities. ForageFeeder’s makers have already even modified their creation to serve Zoo Atlanta’s Angolan colobus monkey population.

“I find the zoo projects very interesting because your intended audience can’t provide any feedback,” says Magie Zhang, a project collaborator and recent mechanical engineering graduate. “If the device stops working, the animal doesn’t tell you. If they rip it apart, you can’t tell them to stop. It’s good to anticipate the problems of a design and figure out its solutions before it’s sent into the real world.”

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The best tiki torches of 2023 https://www.popsci.com/story/reviews/best-tiki-torches/ Thu, 15 Apr 2021 16:59:00 +0000 https://www.popsci.com/story/?p=282868
A black tiki torch with flame in a twilight sea background.
Oleg Illarionov, Unsplash

Give your backyard the gift of light and your body the gift of a bug-free outing with our guide to solid tiki torches.

The post The best tiki torches of 2023 appeared first on Popular Science.

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A black tiki torch with flame in a twilight sea background.
Oleg Illarionov, Unsplash

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Best Solar Solar lights make the best tiki torches TomCare Solar Lights
SEE IT

Eight hours of sunlight gives you 12 hours of torchlight.

Best for Bugs Mosquito control tiki torches Deco Home Tikki Backyard Torch
SEE IT

Keep bugs 15 feet away with this easily-refillable torch.

Best Budget Four bamboo tiki torches TIKI Brand Luau Bamboo Torches – 12 Pack
SEE IT

Get 5 hours of power at a time for less than $25.

Light the torch and let the opening ceremony of summer commence. Since our days living in caves, humans have used torches to keep the lights on and the party going. The best tiki torches are much more than simple, oversized matches. Torches made of glass and metal bring new artistic options to outdoor decor. Solar-powered tiki torches eliminate the need for fire. Tiki torches with citronella shield you and your guests from annoying (and dangerous) mosquitoes. You now have dozens of options to ignite your outdoor space with bright, beautiful light. 

From the simple bamboo firesticks to the elaborate glass vases, you can mix and match your outdoor illumination to create unique spaces for big parties and quiet nights. While you can pick up a few cheap tiki torches at the grocery store, don’t ignore the potential of specialized troches only available online and in home stores. Learn the pros and cons of these new ambiance staffs and find the very best tiki torches for your yard, deck, event or campsite with this guide.

The best tiki torches: Reviews & Recommendations

Best for decks: TIKI Brand Resin Jar TIKI Torch 4-in-1

TIKI

SEE IT

To achieve the best lighting, including on your deck, you need variety and the best deck tiki torch that does it all is the Jar Tiki. The artful jar can stand on its own as the centerpiece on a table. For decks and porches, the smaller pole height works on railings thanks to the included mount. Each of the metal torches offers up about four hours of flame-time, so keep the fuel handy. It’s the best way to add varying heights to your space while maintaining the cohesive look of matching torches.

Best solar: TomCare Solar Lights

TomCare

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The TomCare Solar Lights are the best solar powered torches thanks to lifelike illumination that flickers and flutters like the real thing. With 8 hours of sunlight beaming on the solar cells atop each torch, the flame will stay lit for about 12 hours. That should carry you through the entire night. The pole stands at 43 inches, which is shorter than most that stretch past the 60 inch mark, so make sure the height works for your space. (They are waist-level, not eye-level.) The waterproof lights stand up against most summer weather, but you want to bring these in during the harsh winter months. Installation is stratightword with the plastic stakes and everything is contained in one well-balanced solar tiki torch.

Best glass canisters: TIKI Brand King Oahu Glass Torch

TIKI

SEE IT

Bring whimsy to your outdoors with the King Oahu glass tiki torch. The modeled glass looks amazing in the day and shines and shimmers like ice at night. Fifteen ounces of fuel fit into the glass, enough for an evening of tiki wonderment. It can be used on the included pole or as a tabletop torch. It works best as a staked pole torch because on a table it can tip and fall over too easily. If you have pets on leashes, keep the leashes clear of the poles or the torches will topple. The lights are hefty, and feel strong when properly staked. Use them to outline the party space and prepare for oohs and ahhs as guests watch the tiki god, and the tiki god watches back.

Best for bug control: Deco Home Tikki Backyard Torch

DECO WINDOW COMPLETE WINDOW SOLUTION

SEE IT

The best tiki torches for mosquitoes are ones that stay lit. The Deco Home metal torch is a simple design that can handle the citronella fuel of your choice. It is a basic backyard torch—but it’s well-made and solid. Filling the torch with bug repellent fuel is easy and a full torch will last 6 hours. Loaded with citronella oil, the torch keeps bugs 15-feet away, but some biters will still break through your line of defense. You will want to add some bug spray to your arms and legs.

Best budget: TIKI Brand Luau Bamboo Torches – 12 Pack

TIKI

SEE IT

Bamboo tiki torches will last long enough for a fun, dry night in the yard and they are easy to stake and fuel. Keep a few torches on hand stored safely in the garage and bring them out as needed throughout the summer. You’ll get 5-hours of flame power with a full 12 ounce tank of fuel. The attached snuffer puts out the flame easily when the party’s over. Don’t expect too much from these cost-effective lights, and you’ll get more than your money’s worth.

How to find the best tiki torches for your outdoor space

Offering quiet mood lighting is just one of the many functions of the best tiki torches. The designs of today have become artful lighting elements with features that add usability to your backyard. Mosquito control is is one of the biggest benefits, and new solar-powered torches even provide realistic flame ambience without the danger of fire.

You can find tiki torches that can be used season after season. Metal tiki torches may lack some of the classic, delightfully cheesy design of the vintage bamboo, but these modern lights provide new, eye-catching style to any backyard. 

Of course, if the torch runs out of gas, what good is it? Tiki torches will use replaceable gas or oil to stay alight and there are a variety of fuels to choose from. Efficient design and top-quality fuel give long life to your nightlight and eliminate the need to stop the party to fill up or replace the lights. And new table-top tiki torches bring big light to the centerpiece of a table. No longer just for the perimeter of the party, these tiny (and safe) torches bring the party nice and close. 

Explore all options and choose the best tiki torches for your specific space. 

What are the best deck tiki torches?

Height is important when shopping for the best deck tiki torches on the market. A 5-foot lawn torch is great for open spaces, but won’t be useful on a deck or if you want to bring the torch closer to the party. Smaller 3-foot ones are easier to use in tighter spaces and can bring brilliant backyard lighting to decks and patios. And tabletop torches can be placed anywhere and make beautiful centerpieces.

Wherever you plan to use the torches, be sure to check that it’s a safe space that’s not directly under an awning, tree or patio umbrella. Unless it’s a small tabletop model, keep the torches 3-feet away from people, patio furniture, and buildings. You also want space between each torch—at least four feet. Too many torches crammed into a small space will lose any flickering light effect and look cluttered.

What about solar lights?

Ditch the fire fuel and draw power from the biggest tiki torch in the solar system. Solar tiki torches provide safe, flame-free/smoke-free light that shines anywhere you need it. Today’s solar torch designs offer flickering light that looks lifelike and many “flames” can be adjusted to provide unique lighting options. 

The biggest benefit of solar tiki torches is fire safety. Pets and children will knock over anything in the yard, so going flameless is a smart idea for areas prone to play. And these cool lights are also easier to use and maintain than gas-fueled torches. The water-proof casing means you can leave them staked in the ground all season. And with a day of sunshine, the solar battery should charge up a full night’s worth of light.

The downside to solar powered tiki torches will become very clear on a cloudy day. They may also be dimmer, even on a full charge, than the standard ones.

Get creative with glass

Many modern tiki torches are sleek and minimal. But a glass torch can help bring some of the fun back to the backyard with lights made to be seen. Because they are basically glass jars, they make for one of the best tiki torch canisters and will hold a lot of fuel. And glass doesn’t rust or warp in the rain. But the real benefit of glass tiki torches is that they become eye-catching works of art. 

If you’re shopping for backyard lights that make an impact, glass tiki lights on a pole or a tabletop are the perfect conversation piece. Tabletop glass torches can “glow up” even a basic picnic table and tall glass torches staked into the ground offer heavy-duty construction that minimizes spills and tumbles.

Can tiki torches help with bug control?

The smells of summer are backyard barbecue, sunscreen, pool chlorine and citronella. Citronella is a natural oil from lemongrass that has been used to deter mosquitoes for hundreds of  years. It’s safe and inexpensive. But is it effective for bug control, including when it’s used in a torch? The answer: Kind of. 

There are plenty of fuels infused with citronella and they all claim to keep bugs away. If it doesn’t seem to be working there are two issues to consider: First, citronella doesn’t work well on windy days. Once the citronella fumes mix with air, it quickly gets diluted and ineffective. Second, citronella works best in close areas. If the torches are spread too far out, it won’t deter the bugs. Keep the torches within 15-feet of the action for best results. 

If you need more help shielding guests from bugs, use the torch in conjunction with a spray-on bug repellent that has DEET as one of the ingredients. Spray your arms and legs and hopefully you’ll stop slapping yourself silly all night.

What if I’m looking for something cheaper?

If all you want is some temporary outdoor lighting, pick up a set of bamboo tiki torches for very little money. The bamboo has a classic look and it works well enough … until it doesn’t. 

While generally safe to use, the bamboo torches may catch on fire, and not in the intended way. They also create a lot of smoke so some fine tuning with the wick is expected. If you don’t need fancy metal material and elegant style, go simple and go cheap with the traditional and temporary torch.

FAQs

Q: How long does a 12 oz tiki torch last?

A 12 oz tiki torch should last between five and six hours. Sadly, there is no eternal flame for backyard fires. Even solar-powered lights will fade after 10 or 12 hours. Be prepared by stocking up fuel. Don’t try to concoct your own “emergency” fuel with rubbing alcohol or other chemicals. Leave it to the pros. DIY modification of the torch to try and get more life out of the fuel can result in dangerous fires, ruined torches, and horrible, horrible parties

Q: Do tiki torches really keep mosquitoes away?

Tiki torches can keep mosquitoes away, but don’t expect miracles. Citronella oil used in some fuels is a safe and effective bug repellent, but it works best in a small area like a porch or deck. Place the torches in a circle and keep them near the people (but not close enough to burn anyone). For best results, give your arms and legs a light coat of bug repellent. And the best trick to keep mosquitoes out of your yard is to remove standing water on the property: Birdbaths, upturned Frisbees, even small water bottle caps can become breeding grounds for mosquitoes. Give the yard a daily once-over and if you see anything that collects water, dump it out.

Q: Is it OK to leave tiki torches outside?

Yes, you can leave some types of tiki torches outside. Metal torches and solar-powered torches are designed to hold up against the elements. Glass torches won’t rust, but a strong storm can knock them over and break the glass. You should always bring the torches inside if possible during a strong rainstorm. This will ensure the torches last as long as possible. Wood and bamboo torches should never be left out in the rain or the material will crack and crumble.

A final word on shopping for the best tiki torches

The best tiki torches give new life to the outdoors. Metal tiki torches are sturdy and dependable sources of light. Solar lights/torches are safe and simple. Glass ones add style to the backyard. And the classic bamboo tiki torches bring affordable ambiance to any event. Find the best deck torches, or ones for the yard, around the pool, or for lining a walkway. The beauty of a flickering flame makes any summer night fun and memorable.

The post The best tiki torches of 2023 appeared first on Popular Science.

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Move over, bees: The lowly weevil is a power pollinator https://www.popsci.com/environment/weevil-beetle-pollination/ Fri, 26 May 2023 16:00:00 +0000 https://www.popsci.com/?p=543960
The weevil Anchylorhynchus trapezicollis is the main pollinator of South American palm Syagrus coronata. Here, the weevil is seen on a female flower, touching the receptive parts and leaving pollen grains in the process.
The weevil Anchylorhynchus trapezicollis is the main pollinator of South American palm Syagrus coronata. Here, the weevil is seen on a female flower, touching the receptive parts and leaving pollen grains in the process. Bruno de Medeiros

The long-snouted beetle deserves more buzz for their pollination skills.

The post Move over, bees: The lowly weevil is a power pollinator appeared first on Popular Science.

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The weevil Anchylorhynchus trapezicollis is the main pollinator of South American palm Syagrus coronata. Here, the weevil is seen on a female flower, touching the receptive parts and leaving pollen grains in the process.
The weevil Anchylorhynchus trapezicollis is the main pollinator of South American palm Syagrus coronata. Here, the weevil is seen on a female flower, touching the receptive parts and leaving pollen grains in the process. Bruno de Medeiros

When it comes to the critical process of pollination, butterflies and especially bees are typically the most lauded participants. These pollinators fly from flower to flower to feed and fertilize plants by spreading pollen around. But, these fluttery creatures are far from the only species that help flowers reproduce and bloom. It turns out that some of nature’s most unsung and diverse pollinators are a type of long-snouted beetles called weevils.

[Related: Build a garden that’ll have pollinators buzzin’.]

A study published May 25 in the journal Peer Community in Ecology wiggles into the world of weevils, including some who spend their entire lifecycle in tandem with a specific plant they help pollinate. 

“Even people who work on pollination don’t usually consider weevils as one of the main pollinators, and people who work on weevils don’t usually consider pollination as something relevant to the group,” study co-author and assistant curator of insects at the Field Museum in Chicago said in a statement. “There are lots of important things that people are missing because of preconceptions.”

The quarter-of-an-inch long  weevils can be considered pests, especially when found munching on pasta and flour in pantries. Weevils used to find their way into the biscuits on Nineteenth Century ships that even highly ranked officers ate, as depicted in the 2003 seafaring film Master and Commander: The Far Side of the World. They can be so destructive that from 1829 to 1920, boll weevils completely disrupted the cotton economy in the South as they fed on cotton buds. 

Despite this less than stellar reputation, the insects are still beneficial to many of the world’s plant species. 

Scientists have identified roughly 400,000 species of beetles, making them one of the largest groups of animals in the world. Among this already big bunch of bugs, weevils are the largest group. “There are 60,000 species of weevils that we know about, which is about the same as the number of all vertebrate animals put together,” said de Medeiros.

Bruno de Medeiros climbing the palm tree Oenocarpus mapora in Panama to study their pollinators.
Bruno de Medeiros climbing the palm tree Oenocarpus mapora in Panama to study their pollinators. CREDIT: Tauana Cunha.

The authors looked at 600 species of weevil, reviewing hundreds of previously published data on how weevils and plants interact to get a better sense of their role as prime pollinators. It focused on brood-site pollinators—insects that use the same plants that they pollinate as the breeding sites for their larvae. It is similar to the relationship between Monarch butterflies and milkweed, which is the only plant that Monarch caterpillars can eat. 

“It is a special kind of pollination interaction because it is usually associated with high specialization: because the insects spend their whole life cycle in the plant, they often only pollinate that plant,” said de Medeiros.  And because the plants have very reliable pollinators, they mostly use those pollinators.” 

[Related: This lawn-mowing robot can save part of your yard for pollinators.]

Unlike Monarchs, brood-site pollinators take the relationship with the plant a step further. They rely on only one plant partner as a source for both food and egg laying, unlike adult Monarchs who will eat the nectar of many different types of flowers

“This kind of pollination interaction is generally thought to be rare or unusual,” said de Medeiros. “In this study, we show that there are hundreds of weevil species and plants for which this has been documented already, and many, many more yet to be discovered.”

The relationship like the one between weevils and their plants means that they both need each other to flourish. Some industries, like palm oil,  have already hurt forests, therefore disturbing the animal species that rely on them. 

Oil palm, which is used to make peanut butter and Nutella, was not a viable industry until someone figured out that the weevils found with them were their pollinators. And because people had an incorrect preconception that weevils were not pollinators, it took much, much longer than it could have taken,” said de Medeiros.

Misconceptions about weevils were one of this team’s motivations for the study. The team hopes that by summarizing what is known about the pollinators, more scientists and the general public appreciate the role of weevils as pollinators, particularly in the tropics. 

The post Move over, bees: The lowly weevil is a power pollinator appeared first on Popular Science.

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The best Memorial Day grill deals are sizzling https://www.popsci.com/gear/best-memorial-day-amazon-grill-deals-2023/ Fri, 26 May 2023 12:05:11 +0000 https://www.popsci.com/?p=542659
The best memorial day grill deals composited
Stan Horaczek

If your long weekend barbecue is suffering from an old grill, get yourself a new outdoor cooking rig.

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The best memorial day grill deals composited
Stan Horaczek

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Memorial Day Weekend is the official kickoff to summer grilling season, which means it’s time to invest in shiny new equipment to ensure your burgers, dogs, and vegetables come out perfectly every single time. The tools you use can impact not only the flavor of your food but how easy it is to flip, season, and even transfer to and from a plate. The good news is that getting the good stuff means you won’t have to replace any of it for a long time.

Weber Genesis E-325s Gas Grill $899 (was $1,049)

Weber

SEE IT

if you’re looking for a rock-solid, propane-powered grill with tons of useful features, you’ll have difficulty finding a better option than the Weber Genesis E-325s, especially now that it’s now at the lowest price it’s been in months. It relies on Weber’s patented burner tech, which provides consistent, clean flame to char your grub. Plus, a Sear Station part of the grill gets exceptionally hot for searing steaks or other cuts of meat that thrive under high temps. Plus, it offers several features that facilitate easier cleaning, like easily accessible grease management. That means you can spend more time eating burgers and a lot less time scrubbing old sludge out of your grill.

If you’d prefer the natural gas version, that’s also on sale for $1,219 (down from $1,319).

Everdure CUBE Portable Charcoal Grill $156.99 (Was $199)

Everdure

SEE IT

The Everdure Cube is the portable charcoal grill every camper, apartment dweller, tail gator, or beach bum could use to cook up a storm on the go. The steel grill comes with a food storage tray and cutting board, which latch onto the top of it to make carrying and prepping your food easier. Similarly, metal handles make the grill simple to carry to and from a car, or indoors to outdoors. Despite its compact size, the Everdure Cube offers 115 square inches of grilling space. Everdure says this is enough room for three medium steaks or six small burgers at once.

Once your grilling is done, you can remove the Cube’s grates, empty out its chamber, wash the storage tray and board, and store. The Everdure offers the cube in five colors, and while the Khaki colorway is marked down to $150 we prefer the pop of the orange option seen above. If you’ve given up grilling due to the lack of space or high cost, don’t skip this deal.

Pellet grill deals

The best gas grill deals

The best charcoal grill deals

The best grilling accessory deals

The best Solo Stove fire pit deals (for marshmallow grilling, roasting … whatever)

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Electric cars are better for the environment, no matter the power source https://www.popsci.com/technology/are-electric-cars-better-for-the-environment/ Fri, 26 May 2023 14:00:00 +0000 https://www.popsci.com/?p=543822
Ioniq 6 EV
An Ioniq 6 electric vehicle. Hyundai

Experts say that across the board, EVs are a win compared to similar gas-powered vehicles.

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Ioniq 6 EV
An Ioniq 6 electric vehicle. Hyundai

These days, it seems like every carmaker—from those focused on luxury options to those with an eye more toward the economical—is getting into electric vehicles. And with new US policies around purchasing incentives and infrastructure improvements, consumers might be more on board as well. But many people are still concerned about whether electric vehicles are truly better for the environment overall, considering certain questions surrounding their production process

Despite concerns about the pollution generated from mining materials for batteries and the manufacturing process for the EVs themselves, the environmental and energy experts PopSci spoke to say that across the board, electric vehicles are still better for the environment than similar gasoline or diesel-powered models. 

When comparing a typical commercial electric vehicle to a gasoline vehicle of the same size, there are benefits across many different dimensions

“We do know, for instance, if we’re looking at carbon dioxide emissions, greenhouse gas emissions, that electric vehicles operating on the typical electric grid can end up with fewer greenhouse gas emissions over the life of their vehicle,” says Dave Gohlke, an energy and environmental analyst at Argonne National Lab. “The fuel consumption (using electricity to generate the fuel as opposed to burning petroleum) ends up releasing fewer emissions per mile and over the course of the vehicle’s expected lifetime.”

[Related: An electrified car isn’t the same thing as an electric one. Here’s the difference.]

How the electricity gets made

With greenhouse gas emissions, it’s also worth considering how the electricity for charging the EV is generated. Electricity made by a coal- or oil-burning plant will have higher emissions compared to a natural gas plant, while nuclear and renewable energy will have the fewest emissions. But even an electric vehicle that got its juice from a coal plant tends to have fewer emissions compared to a gasoline vehicle of the same size, Gohlke says. “And that comes down to the fact that a coal power plant is huge. It’s able to generate electricity at a better scale, [be] more efficient, as opposed to your relatively small engine that fits in the hood of your car.” Power plants could additionally have devices in place to scrub their smokestacks or capture some of the emissions that arise.  

EVs also produce no tailpipe emissions, which means reductions in particulate matter or in smog precursors that contribute to local air pollution.

“The latest best evidence right now indicates that in almost everywhere in the US, electric vehicles are better for the environment than conventional vehicles,” says Kenneth Gillingham, professor of environmental and energy economics at Yale School of the Environment. “How much better for the environment depends on where you charge and what time you charge.”

Electric motors tend to be more efficient compared to the spark ignition engine used in gasoline cars or the compression ignition engine used in diesel cars, where there’s usually a lot of waste heat and wasted energy.

Let’s talk about EV production

“It’s definitely the case that any technology has downsides. With technology you have to use resources, [the] raw materials we have available, and convert them to a new form,” says Jessika Trancik, a professor of data, systems, and society at the Massachusetts Institute of Technology. “And that usually comes with some environmental impacts. No technology is perfect in that sense, but when it comes to evaluating a technology, we have to think of what services it’s providing, and what technology providing the same service it’s replacing.”

Creating an EV produces pollution during the manufacturing process. “Greenhouse gas emissions associated with producing an electric vehicle are almost twice that of an internal combustion vehicle…that is due primarily to the battery. You’re actually increasing greenhouse gas emissions to produce the vehicle, but there’s a net overall lifecycle benefit or reduction because of the significant savings in the use of the vehicle,” says Gregory Keoleian, the director of the Center for Sustainable Systems at the University of Michigan. “We found in terms of the overall lifecycle, on average, across the United States, taking into account temperature effects, grid effects, there was 57 percent reduction in greenhouse gas emissions for a new electric vehicle compared to a new combustion engine vehicle.” 

In terms of reducing greenhouse gas emissions associated with operating the vehicles, fully battery-powered electric vehicles were the best, followed by plug-in hybrids, and then hybrids, with internal combustion engine vehicles faring the worst, Keoleian notes. Range anxiety might still be top of mind for some drivers, but he adds that households with more than one vehicle can consider diversifying their fleet to add an EV for everyday use, when appropriate, and save the gas vehicle (or the gas feature on their hybrids) for longer trips.

The breakeven point at which the cost of producing and operating an electric vehicle starts to gain an edge over a gasoline vehicle of similar make and model occurs at around two years in, or around 20,000 to 50,000 miles. But when that happens can vary slightly on a case-by-case basis. “If you have almost no carbon electricity, and you’re charging off solar panels on your own roof almost exclusively, that breakeven point will be sooner,” says Gohlke. “If you’re somewhere with a very carbon intensive grid, that breakeven point will be a little bit later. It depends on the style of your vehicle as well because of the materials that go into it.” 

[Related: Why solid-state batteries are the next frontier for EV makers]

For context, Gohlke notes that the average EV age right now is around 12 years old based on registration data. And these vehicles are expected to drive approximately 200,000 miles over their lifetime. 

“Obviously if you drive off your dealer’s lot and you drive right into a light pole and that car never takes more than a single mile, that single vehicle will have had more embedded emissions than if you had wrecked a gasoline car on your first drive,” says Gohlke. “But if you look at the entire fleet of vehicles, all 200-plus-million vehicles that are out there and how long we expect them to survive, over the life of the vehicle, each of those electric vehicles is expected to consume less energy and emit lower emissions than the corresponding gas vehicle would’ve been.”

To put things in perspective, Gillingham says that extracting and transporting fossil fuels like oil is energy intensive as well. When you weigh those factors, electric vehicle production doesn’t appear that much worse than the production of gasoline vehicles, he says. “Increasingly, they’re actually looking better depending on the battery chemistry and where the batteries are made.” 

And while it’s true that there are issues with mines, the petrol economy has damaged a lot of the environment and continues to do so. That’s why improving individual vehicle efficiency needs to be paired with reducing overall consumption.

EV batteries are getting better

Mined materials like rare metals can have harmful social and environmental effects, but that’s an economy-wide problem. There are many metals that are being used in batteries, but the use of metals is nothing new, says Trancik. Metals can be found in a range of household products and appliances that many people use in their daily lives. 

Plus, there have been dramatic improvements in battery technology and the engineering of the vehicle itself in the past decade. The batteries have become cheaper, safer, more durable, faster charging, and longer lasting. 

“There’s still a lot of room to improve further. There’s room for improved chemistry of the batteries and improved packaging and improved coolant systems and software that manages the batteries,” says Gillingham.

The two primary batteries used in electric vehicles today are NMC (nickel-manganese-cobalt) and LFP (lithium-ferrous-phosphate). NMC batteries tend to use more precious metals like cobalt from the Congo, but they are also more energy dense. LFP uses more abundant metals. And although the technology is improving fast, it’s still in an early stage, sensitive to cold weather, and not quite as energy dense. LFP tends to be good for utility scale cases, like for storing electricity on the grid. 

[Related: Could swappable EV batteries replace charging stations?]

Electric vehicles also offer an advantage when it comes to fewer trips to the mechanic; conventional vehicles have more moving parts that can break down. “You’re more likely to be doing maintenance on a conventional vehicle,” says Gillingham. He says that there have been Teslas in his studies that are around eight years old, with 300,000 miles on them, which means that even though the battery does tend to degrade a little every year, that degradation is fairly modest.

Eventually, if the electric vehicle markets grow substantially, and there’s many of these vehicles in circulation, reusing the metals in the cars can increase their benefits. “This is something that you can’t really do with the fossil fuels that have already been combusted in an internal combustion engine,” says Trancik. “There is a potential to set up that circularity in the supply chain of those metals that’s not readily done with fossil fuels.”

Since batteries are fairly environmentally costly, the best case is for consumers who are interested in EVs to get a car with a small battery, or a plug-in hybrid electric car that runs on battery power most of the time. “A Toyota Corolla-sized car, maybe with some hybridization, could in many cases, be better for the environment than a gigantic Hummer-sized electric vehicle,” says Gillingham. (The charts in this New York Times article help visualize that distinction.) 

Where policies could help

Electric vehicles are already better for the environment and becoming increasingly better for the environment. 

The biggest factor that could make EVs even better is if the electrical grid goes fully carbon free. Policies that provide subsidies for carbon-free power, or carbon taxes to incentivize cleaner power, could help in this respect. 

The other aspect that would make a difference is to encourage more efficient electric vehicles and to discourage the production of enormous electric vehicles. “Some people may need a pickup truck for work. But if you don’t need a large car for an actual activity, it’s certainly better to have a more reasonably sized car,” Gillingham says.  

Plus, electrifying public transportation, buses, and vehicles like the fleet of trucks run by the USPS can have a big impact because of how often they’re used. Making these vehicles electric can reduce air pollution from idling, and routes can be designed so that they don’t need as large of a battery.  

“The rollout of EVs in general has been slower than demand would support…There’s potentially a larger market for EVs,” Gillingham says. The holdup is due mainly to supply chain problems

Switching over completely to EVs is, of course, not the end-all solution for the world’s environmental woes. Currently, car culture is very deeply embedded in American culture and consumerism in general, Gillingham says, and that’s not easy to change. When it comes to climate policy around transportation, it needs to address all the different modes of transportation that people use and the industrial energy services to bring down greenhouse gas emissions across the board. 

The greenest form of transportation is walking, followed by biking, followed by using public transit. Electrifying the vehicles that can be electrified is great, but policies should also consider the ways cities are designed—are they walkable, livable, and have a reliable public transit system connecting communities to where they need to go? 

“There’s definitely a number of different modes of transport that need to be addressed and green modes of transport that need to be supported,” says Trancik. “We really need to be thinking holistically about all these ways to reduce greenhouse gas emissions.”

The post Electric cars are better for the environment, no matter the power source appeared first on Popular Science.

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The best Memorial Day laptop, desktop, and monitor deals are easy to process https://www.popsci.com/gear/best-memorial-day-amazon-computer-deals-2023/ Fri, 26 May 2023 12:52:33 +0000 https://www.popsci.com/?p=543563
The Best Memorial Day Computer Deals
Brandt Ranj / Popular Science

Reboot the center of your tech life or finally upgrade that home office.

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The Best Memorial Day Computer Deals
Brandt Ranj / Popular Science

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Memorial Day Weekend is here, meaning it’s time to score some quick deals before heading out to a cookout or hitting the highway to visit friends and family. While the holiday is traditionally synonymous with mattresses and outdoor gear, you can score discounts on computer hardware that may make returning to work a little easier come Tuesday morning. Whether you’re looking for a computer for an upcoming college student or want to treat yourself to a home office upgrade as you settle into permanent remote or hybrid work, it’s a good time to pick up a new laptop, desktop, or monitor while saving a lot of money. Just remember, these deals can sell out, so if you see something you want, don’t hesitate.

M2 MacBook Pro $1,099 (Was $1,299)

Apple

SEE IT

Apple isn’t holding its own Memorial Day Weekend sale, but you can save $200 on its latest MacBook Pro by shopping on Amazon. The M2 MacBook Pro has 8GB of RAM (memory), 256GB of storage, and a 13.3-inch high-resolution “retina” display. It runs on Apple’s latest M2 chip, which means it’s capable of resource-intensive tasks like 4K video editing and gaming (if the game has a Mac version) and common use cases like online shopping, video chatting, editing documents, and streaming video. This processor is also energy-efficient, allowing the laptop to get up to 20 hours of life per charge, though the amount you get will depend on how you use the machine.

If you hate passwords, its Touch ID fingerprint reader will allow you to unlock the machine and authenticate yourself when installing software, which is much more convenient. All in all, the M2 MacBook Pro is a laptop we can recommend to anybody, and Amazon’s Memorial Day Weekend deal addresses the one issue we typically have with Apple gear: cost. If you’ve been waiting for a good MacBook deal for work or school, now’s the time to pick one up.

The best Memorial Day laptop deals

The best Memorial Day desktop deals

The best Memorial Day monitor deals

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The best Memorial Day audio deals let you blast bops all summer long https://www.popsci.com/gear/best-memorial-day-amazon-audio-deals-2023/ Fri, 26 May 2023 12:00:39 +0000 https://www.popsci.com/?p=543136
A lineup of the best audio deals on a blue and white background
Amanda Reed

Enjoy the song of the summer and have money left over to stock the cooler when you pick up these party speakers and more on sale.

The post The best Memorial Day audio deals let you blast bops all summer long appeared first on Popular Science.

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A lineup of the best audio deals on a blue and white background
Amanda Reed

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

If upbeat anthems and sunny savings make your heart go padam padam, you’ll want to free yourself long enough to scroll through this post. We’ve collected the best Memorial Day Weekend discounts on speakers, headphones, earbuds, and more to help you celebrate the unofficial start of pool season and beach vacations with more tunes in your ears and money in your pocket.

JBL Boombox 3 $399.95 (Was $499.95)

Tony Ware

SEE IT

Live sound specialists JBL makes several of our favorite portable party speakers, and the 13-pound 160W Bluetooth 5.3 Boombox 3 is the one you want to soundtrack your summer—from patio parties to friendly pick-up games. With its three-way speaker configuration, which includes a subwoofer that extends to 40 Hz, you can get any party started. And with 24 hours of battery life on a single charge, a sturdy molded handle, and IP67 (surf and sand protection), you can keep those parties going—wherever they occur. Act now and you can get all that for $100 off, so your favorite tracks slam, but your wallet isn’t hit as hard. If that’s too much body or budget for you at this time, however, there are other JBL party speakers and soundbars on sale:

Need a speaker that’s purse-, pack-, and pool-friendly? The Ultimate Ears WONDERBOOM 3 is our favorite pint-sized Bluetooth party to take from the bathtub to the backcountry or on a bike, and this IP67 360-degree audio orb is available for $85 (down from $99).

Want to wire something more permanent on the back deck? The fully sealed Definitive Technology AW6500 outdoor speaker—featuring a 6.5″ mid-woofer, a 1″ tweeter, and a 5″ x 10″ oval pressure-driven low bass radiator, and available in black or white—is on sale for $249 (down from $299). And the smaller AW5500 is only $199 (down from $249).

Want to go wireless in the living room instead? Save $500 when you bundle the KEF LS50 Wireless II speakers and KC62 subwoofer together for $3,799.98 (down from $4,299.98). Just add both to your cart, and you can cut cords and cost on one of our favorite powered bookshelf (or standmount) speakers, plus a compact unit that provides muscular musical bass. Or save $250 when you buy both the smaller, desktop-friendly KEF LSX II speakers and KUBE 8b subwoofer for $1,749.98.

See more sweet-sounding audio deals hear and now:

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Traveling internationally? Stay connected with this $25 mobile data package https://www.popsci.com/sponsored-content/travel-mobile-data-package-deal/ Fri, 26 May 2023 13:00:00 +0000 https://www.popsci.com/?p=543053
A person looks up flights on a cell phone
Stack Commerce

Get reliable internet access no matter where travels take you.

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A person looks up flights on a cell phone
Stack Commerce

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Travel to more than 120 countries without sacrificing internet connection thanks to aloSIM Mobile Data Traveler Lifetime eSim Plan, with $50 of credit available for only $24.99.

Considering how reliant many of us have become on internet-based tools for daily needs, the prospect of international travel can be overwhelming when attempting to sustain that connectivity abroad. Set those frustrations aside using an eSim package that supplies data access from 120 countries.

For a limited time, you can get $50 of credit toward an aloSIM Mobile Data Traveler eSim Plan for only $24.99 (reg. $50) with no coupon necessary. Make long-distance travel much more manageable by taking advantage of his discount, picking a data package, and activating the plan before your trip.

Carrying a rating of 4.2 out of 5 on both the Apple App Store and Google Play Store, aloSIM is a trusted eSim option that offers one-week data packages starting at only $4.50. That access will open the door to data networks across the world. Just take it from one verified buyer, who wrote, “Absolutely a great deal. No issues with the service while traveling to the USA. Always had 4 bars and 4 or 5G service.”

Once this eSim is activated on your device, you will be all set to achieve an internet connection without the cost of roaming charges. Aside from smartphones, eSIM also makes it easy to load prepaid data plans onto computers and tablets.

You can encounter plenty of unknowns while exploring the world, but internet access no longer needs to be among them, thanks to this modern solution. More data can eventually be added if needed, but this half-priced credit purchase makes it easy to start planning trips with confidence.

Be sure to purchase and install aloSIM ahead of your trips to avoid having to do this at the airport with laggy WiFi.

Instantly expand your international internet reach and gain some additional peace of mind ahead of upcoming trips with help from an incredible data plan.

Grab the aloSIM Mobile Data Traveler eSim Lifetime Plan now for just $24.99 (reg. $50) and gain $50 of credit toward your data package.

Prices subject to change.

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The best inflatable hot tubs of 2023 https://www.popsci.com/story/reviews/best-inflatable-hot-tub/ Thu, 17 Feb 2022 20:20:00 +0000 https://www.popsci.com/story/?p=281623
These are our picks for the best inflatable hot tubs on Amazon.
Natasha Roy

Sit back and relax in an inflatable hot tub that gives you the comforts of a permanent model without the financial or space commitment.

The post The best inflatable hot tubs of 2023 appeared first on Popular Science.

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These are our picks for the best inflatable hot tubs on Amazon.
Natasha Roy

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

Best Overall The Coleman SaluSpa Inflatable Hot Tub is the best overall. Coleman SaluSpa Inflatable Hot Tub
SEE IT

A portable, durable design and excellent pump and heater allow for long-term comfort and relaxation.

Best Value The CO-Z Inflatable Tub is the best value. CO-Z Inflatable Tub
SEE IT

This personal hot tub can hold water with temperatures up to 122°F and lets users sit back and relax.

Best With Hydro Jets The Bestway SaluSpa Hawaii HydroJet Pro is the best with hydro jets. Bestway SaluSpa Hawaii HydroJet Pro
SEE IT

Adjustable hydro jets let you customize your comfort.

The heat and motion of a hot tub’s water massage relax tense muscles and minds. But not everyone has the square footage or budget for a full-size permanent model. Plus, wouldn’t it be nice to set up a hot tub while camping or on vacation? The best inflatable hot tubs let you set up an escape anywhere you’ve got water and enough space.  

An inflatable hot tub can fit one to eight people and may feature hydro jets or air jets to provide water massage. While they can weigh over 100 pounds, these hot tubs can be stored in the garage, basement, or under a bed when folded down. They may feature temperature controls, padded seats, neck rests, and digital controls, too. Welcome to the world of inflatable hot tubs. Have a seat and relax while reading through our guide to find the best one for your backyard.

How we picked the best inflatable hot tubs

I looked at over 30 models when searching for the best inflatable hot tub. It’s a fairly limited field, but there were definitely features that stood out. I considered ease of set up, air jets or hydro jets, capacity, and the durability and effectiveness of the included heater and pump. 

Setup: Setup ease included looking at whether or not you need extra tools. Once set up, I considered the stability of the design. Could you sit on the edge of the hot tub?

Jets: How many jets are there, and how effective are they? 

Heater and pump durability: Pumps and heaters are a weak spot for many inflatable hot tubs. I looked for models that showed durability with a combination of good customer service when there was a problem.

The best inflatable hot tubs: Reviews & recommendations

Best overall: Coleman SaluSpa Inflatable Hot Tub

Coleman

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Why it made the cut: The SaluSpa made the list for its durable construction, easy-to-access digital controls, and ease of cleaning and draining. Definitely one of our favorite inflatable hot tubs on the market.

Specs:

  • Capacity: 4-6 people, 242 gallons
  • Max water temperature: 104°F
  • Included: Cover, pump, chemical dispenser, 2 filter cartridges

Pros:

  • Coverage of bubble jets
  • Stable design and construction
  • The heater maintains a set temperature for up to 72 hours

Cons: 

  • Can experience early pump failure

The Coleman SaluSpa Inflatable Hot Tub comes with all the features for a relaxing night in a hot tub. A digital control panel easily adjusts the temperature up to 104°F. The heater raises the temperature by about two degrees per hour, so it can take some time to reach that set temperature at first. Once it’s there, an automatic timer holds that temperature for up to 72 hours. 

The control panel also controls the air jets that surround the bottom edge of the hot tub. This design doesn’t have seats, though they can be bought separately. However, when you’re sitting on the bottom, those air jets gently massage the lower back. It’s advertised as holding four to six people, but in practice, it fits four average-sized adults comfortably. The Coleman’s structure includes interior wall supports, making the sides strong enough to sit on. However, it still folds down for compact storage. 

Something to watch out for is pump failure within the first year. A low number of users experience this, and the company offers good customer service, but it could be an issue.

Best large model: Intex PureSpa Greywood Deluxe

Intex

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Why it made the cut: A package that includes everything to get you started, along with a high capacity and supportive structure, puts the PureSpa near the top of our list.

Specs: 

  • Capacity: 6 people, 290 gallons
  • Max water temperature: 104°F
  • Included: Insulated cover, filtration system, 2 filter cartridges, LED light, 2 headrests, thermal ground cloth, inflation hose, carry bag, floating chlorine dispenser, test strip

Pros:

  • Internal structure adds support and shape
  • Bubble jets provide a massage-like feel
  • Quiet operation 

Cons: 

  • Small floating chlorine dispenser
  • LED light easily corrodes

The Intex PureSpa Greywood Deluxe features a fiber-tech interior structure that helps it hold its shape, even when filled to the 290-gallon capacity. It can fit up to six people, two of whom can use one of the two provided seats. However, this hot tub is fairly shallow, and the seats raise you out of the water quite a bit. 

The 170 bubble jets surround the bottom perimeter and move quite a bit of air. They draw air from the outside, so if it’s cold outside, they can cool the water temperature, too. You can adjust the temperature up to 104°F and control the bubble jets using the wireless digital controls. The pump and heater run extremely quietly. This model comes with a lot of extras like a thermal ground cover and insulated cover, both of which help conserve energy by preserving heat. 

The PureSpa includes a little ambiance with a color-changing LED light. However, that light can be a weakness, as some users have noted that it corrodes quickly, requiring frequent replacement. Additionally, the included floating chlorine dispenser is small enough that you’ll have to find another method for keeping the water clean.

Best with hydro jets: Bestway SaluSpa Hawaii HydroJet Pro

Bestway

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Why it made the cut: This model’s adjustable hydro jets can pivot to adjust the angle and twist to change the flow rate, making it one of our top inflatable hot tubs with hydro jets—and one of the most comfortable. 

Specs:

  • Capacity: 4-6 people, 210 gallon
  • Max water temperature: 104°F
  • Included: Cover, pump, chemical dispenser, 2 filter cartridges

Pros:

  • Adjustable hydro jets
  • Twisting bevel increases or decreases flow rate
  • Easy setup with a strong internal structure

Cons: 

  • Chlorinator problems

The Bestway SaluSpa Hawaii HydroJet Pro features a strong internal I-beam structure that holds the shape over time, but it’s the hydro jets and their design that got this model on the list. The jets can pivot to adjust the angle, helping target pain points. A twist of the jet’s bevel adjusts the water flow for customized water massage.  

It also features a digital control panel to make temperature adjustments up to 104°F. An automatic timer works both for and against you with this model. While it’s an excellent way to save energy by shutting down the heat after 72 hours, if you’re planning on getting in after the heat has shut down, it can take several hours to get it back to temperature. Daily use requires remembering to turn the heater and pump back on. Lift handles and an insulated cover round out the other top features. 

Where this model falls short is the chlorinator. It’s not large enough to effectively keep the water clean. Most users have to use an alternative method to sanitize the water.

Best for winter: Bestway 60022E SaluSpa

Bestway

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Why it made the cut: This Bestway model is our pick for the ultimate hot tub for winter because of its 39°F minimum temperature range and power-saving timer that keeps it at temperature for up to 72 hours. 

Specs: 

  • Capacity: 4-6 people, 222 gallons
  • Max water temperature: 104°F
  • Included: Cover, pump, chemical dispenser, filter cartridge

Pros:

  • 39°F minimum operating temperature
  • Power saving timer keeps it at temperature even in low outdoor temperatures
  • Simple setup and digital control panel

Cons: 

  • Can have pump problems

The Bestway 60022E SaluSpa has a minimum operating temperature of 39°F, which is slightly lower than similar models. It also has a power-saving timer that maintains the temperature for up to 72 hours. That can work for or against you—if you use it daily, it could get annoying to reset it every time. However, it also means there’s no risk of accidentally leaving it on for days at a time. 

Besides the temperature minimum and timer, this model also offers easy-to-use digital controls that let users adjust the temperature or turn on the air jets. Most reviewers find it easy to set up and run. When it’s not filled, the handles allow you to easily move the hot tub around your property. It also includes a cover with locking clips to help maintain the water temperature. 

As far as cons, the pump has been known, in some cases, to prematurely wear out.

Best value: CO-Z Inflatable Tub

CO-Z

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Why it made the cut: If you’re working on a budget, this personal hot tub can provide heated comfort, easy portability, and an ergonomic design.

Specs: 

  • Capacity: One person, 25 gallons
  • Max water temperature: 122°F
  • Included: Electric air pump

Pro:

  • Comes with a convenient cup holder
  • Compact and easy to store
  • Can fit in some showers

Cons: 

  • Difficult to drain

The CO-Z Inflatable Tub provides a relaxing spot to kick back and relax. It can hold water that’s up to 122°F, and an extra thick bottom provides some insulation to maintain the water temperature. While it’s a bit of a bear to inflate and deflate, once it’s up, you get a personal hot tub experience complete with a seat and armrests. There’s also a cup holder to sip your favorite drink while you relax. 

Of all the models on our list, this one is the easiest to store simply because it’s smaller. That also means the pump is smaller, again saving storage space. However, this is a tough hot tub to drain when you’re done.

Things to consider before buying an inflatable hot tub

Weight and location

As goes for inflatable pools, you’ll need to consider the tub’s weight before deciding on a location. A deck can’t support the weight of a full inflatable hot tub—which can weigh more than 2,000 pounds—unless it’s been built to do so. 

Instead, opt for a patio or other ground-based space. You’ll also need to be near a fairly high-powered outlet for the pump and heating mechanism unless they’re battery-powered. The area should provide somewhere you can safely drain hundreds of gallons of water, as these hot tubs require regular draining and cleaning every so often. Be careful if you decide to set up the hot tub in a garage or basement since draining can cause serious water damage.

Inflatable hot tubs are made of tough materials, but they still shouldn’t be placed on anything sharp, like gravel. All that weight pressing down on a sharp object could lead to punctures.

Installation, maintenance savings, and cost

These hot tubs usually don’t require extra tools to install, which makes setup quick. However, it takes a couple of days for them to warm up. You’ll also need some accessories. These hot tubs require an investment in hot tub cleaning chemicals, a cover if it’s not included, and a skimmer to scoop out leaves or other debris. A seat, luckily, isn’t really necessary, thanks to a comfortable padded base and short walls.

FAQs

Q: Are inflatable hot tubs expensive to run?

They are expensive to run. They’re usually more expensive than a full-size permanent hot tub simply because they lack the same insulation to hold the water temperature. The lack of insulation can also make it take longer to heat the water to the desired temperature, all the while using more power to do so. Accessories like a cover and thermal ground cover can help hold the heat. Models with built-in timers can save money by turning off the heater automatically.

Q: What can I put under my inflatable hot tub?

Any material that can help insulate the hot tub and protect it from the ground can work as a ground cover. A drop cloth, foam tiles, thermal ground cover, or plastic resin base pad are all options worth considering.

Q: Can you put an inflatable hot tub in a basement?

You can put one in a basement, but it comes with specific hazards and issues that must be addressed. For example, you’ll experience more condensation and rising humidity levels, so you will need extra ventilation and possibly a dehumidifier. There’s also a risk of water damage if the hot tub leaks or if it drains by accident. Additionally, you’ll need some way to safely drain the water.

Final thoughts on the best inflatable hot tubs

The Coleman SaluSpa Inflatable Hot Tub offers the best mix of features, durability, and comfort, making it our top choice. For those who want adjustable comfort, the Bestway SaluSpa Hawaii HydroJet Pro’s adjustable hydro jets customize your comfort and spa experience.

The post The best inflatable hot tubs of 2023 appeared first on Popular Science.

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The best above-ground pools in 2023 https://www.popsci.com/reviews/best-above-ground-pool/ Thu, 12 Aug 2021 13:30:00 +0000 https://www.popsci.com/?p=387936
The best above-ground pools composited
Stan Horaczek

You don’t need to dig up the lawn to transform your yard into a private resort or kid-friendly water park.

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The best above-ground pools composited
Stan Horaczek

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Best for serious swimmers The Intex Above-Ground 32-Foot by 16-Foot by 52-Inch Pool is the best above-ground pool for lap swimmers. Intex Above-Ground 32-Foot by 16-Foot x 52-Inch Pool
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Spacious pool for real swimming.

Best overall The Bestway Power Above-Ground Pool Set is the best for small parties. Bestway Power Steel Above-Ground Pool Set
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Perfect pool for family parties.

Best for babies and pets The YAHEETECH Foldable Swimming Pool is the best above-ground pool for babies and pets. YAHEETECH Foldable Swimming Pool
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The whole family can enjoy this easy-to-store pool.

Taking a dip in your own pool is the dream of many homeowners, and thanks to affordable, easy-to-install above-ground pools, it’s never been easier to attain. In-ground pools require industrial construction equipment and cost more than some cars. However, an above-ground pool is a simple way to add fun to just about any backyard. Today’s above-ground models come in a wide variety of styles, materials, and sizes. A large rectangular above-ground pool is great for summer parties. Smaller, inflatable, oval above-ground pools are perfect for young children. If you’re looking for an inexpensive way to stay cool, the best above-ground pool turns your property into an at-home vacation destination.

How we chose the best above-ground pool

Our splashy selections are based on personal testing, research, recommendations, reviews, and user impressions. We culled through specs and perspectives until we narrowed down the choices to ones that fit every yard and need.

The best above-ground pools: Reviews & Recommendations

Ordering a pool online may sound like trying to get a haircut via email. But today’s pools are user-friendly and the product descriptions clearly state the sizes and dimensions to give you a good idea of what the final product looks like. So use our guide to help you find the swimming pool that fits your backyard, can fit your pool float of choice, looks great next to your inflatable hot tub, and has the style and features you want in a warm-weather oasis.

Best overall: Bestway Power Above-Ground Pool Set

Bestway

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Why it made the cut: This mid-priced, mid-sized pool fits in smaller backyards and is easy to set up.

Specs

  • Capacity: 1000 gallons
  • Dimensions: 168 x 98 x 39.5 inches
  • Water depth: 31 inches

Pros

  • Good for smaller backyards

Cons

  • Included pump is weak

This 14-foot-by-8-foot-by-39-inch Bestway Power Above-Ground Pool Set is a small, yet comfortable way to add warm-weather fun to the lawn. Four adults will have plenty of room to take a dip in the pool. Set up is relatively easy, but you will need two people to get the job done. The walls and supports are strong. The biggest drawback is the inadequate pump. But you can always upgrade the pump and get a more efficient and effective filtration system. For a mid-sized, mid-priced pool, this is a solid solution.

Best for serious swimmers: Intex Above-Ground 32-Foot by 16-Foot by 52-Inch Pool

Intex

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Why it made the cut: This saltwater above-ground pool brings the water workouts to your backyard.

Specs

  • Capacity: 14,364 gallons
  • Dimensions: 384 x 192 x 52 inches
  • Water depth: 45 inches

Pros

  • 90-minute set up
  • Feel of an in-ground pool

Cons

  • Must supply own salt

As above-ground saltwater pools go, the Intex pool is a backyard beast, measuring 36 feet in length and just over four feet deep. That’s long enough to accomplish a genuine swimming workout in your own private lap pool. The steel frame safely holds 14,364 gallons of saltwater. You will need to supply your own salt, though. The included sand filter pumps out 2,650 gallons an hour and makes maintenance simple. If you have the space and want an above-ground model with the feel of an in-ground one, the Intex saltwater pool is your best bet.  

Best for families: Intex 28211EH 12-Foot by 30-Inch Above-Ground Pool

Intex

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Why it made the cut: Fun for the entire family is less than an hour away with this above-ground pool.

Specs

  • Capacity: 1,718 gallons
  • Dimensions: 144 x 144 x 30 inches
  • Water depth: 24 inches

Pros

  • Set up takes less than an hour
  • Included filter

Cons

  • Small for adults
  • Lasts less than five years

The circular Intex 28211EH 12-Foot by 30-Inch Above-Ground Pool holds 1,718 gallons of water. That makes this a great choice for kids who want a fun, safe place to splash. You can set it up in less than an hour, and the included filter pump works well enough to keep the pool clean. The lining and walls feel strong, and the supports are tough enough to handle a kid’s birthday party. That said, this pool may not hold up after five years of heavy use. Luckily, the price point is low enough so even if you get a few seasons of swimming in, it’s worth the money. This model is a bit undersized for adults, but your kids and their friends will have a blast in this simple Intex pool.

Best for babies and pets: YAHEETECH Foldable Swimming Pool

YAHEETECH

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Why it made the cut: Sturdiness and durability make this small above-ground pool baby- and dog-proof.

Specs

  • Capacity: 106 gallons for XXL
  • Dimensions: 63 x 63 x 12 inches
  • Water depth: 12 inches

Pros

  • Affordable
  • Versatile

Cons

  • Side panels will cave in if not on a flat surface

You can’t get an Olympic workout in the YAHEETECH Foldable Swimming Pool. In fact, it’s less of a pool than a very large puddle. But for toddlers and dogs, this affordable pool is a lot of fun. The material is strong enough to handle a rowdy Schnauzer and soft enough for your young kids to bump into. The shallow one-foot depth is safe for wobbly kids just learning to walk, though parent supervision is ALWAYS required. As an added bonus, you can use the pool as a sandbox or ball pit. (Or to soak your weary feet.) If you’re looking for the cheapest and easiest way to add summer fun to your outdoor space, this dog pool/baby pool is a fantastic and versatile option. 

Best budget: Intex Swimming Pool, Easy Set, 8 Feet by 30 Inches

Intex

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Why it made the cut: Fast set up with minimal tools required makes this above-ground pool perfect in a pinch.

Specs

  • Capacity: 639 gallons
  • Dimensions: 96.06 x 96.06 x 29.9 inches
  • Water depth: 23 inches

Pros

  • No chemicals
  • Inflatable

Cons

  • Small

Inflatable pools are the easiest to set up and maintain. As far as small above-ground pools go, this Intex swimming pool is the best of the blow-ups. The small, eight-foot diameter pool holds 639 gallons of water—not enough for a pool party, but plenty of room for one or two people. This pool is great for impromptu soaks after a hard day. There are no chemicals to change or filters to clean. You don’t need to snap support rods together or unfold pool covers. When you want to take a dip, inflate and go. There are holes for optional pumps, but this pool is best enjoyed as simply as possible. No need to add electricity and filtration to this solo backyard pool party. (For best results, use it in conjunction with a cocktail and ukulele.) 

What to consider when shopping for the best above-ground pool

Choosing an above-ground pool is easier than you may think. These swimming pools are designed for simple installation and minimal maintenance. Your biggest decision will be size and style. But before taking the plunge, know the do’s and don’ts of choosing an above-ground pool.

Picking the right pool size

Above-ground pool sizes are the first thing to look at when shopping for the best pool. Small, inflatable above-ground pools that hold less than 1,000 gallons of water are the easiest to use. Just inflate it when it’s time to swim and drain it when the party’s over. You don’t have to worry about any filters or chemicals. It’s basically a backyard bathtub, which is ideal for small kids. 

Large above-ground pools that hold more than 1,000 gallons of water will require more maintenance. These pools remain filled with water all season, so a filter and chemicals are needed to keep the water crystal clear and algae-free. There is more upkeep involved with the larger models than the inflatable swimming pools. However, with that said, the daily and weekly maintenance of these large above-ground models is very easy. And compared with the upkeep of a costly in-ground pool, above-ground pool maintenance is a breeze. Large above-ground pools can hold anywhere from 8,000 to 15,000 gallons of water, and they may stretch over 30 feet long. 

Reminder: Don’t forget to check the depth. While above-ground models are typically shallower than in-ground pools, they can still be too deep for small children or unsure swimmers. (Children can drown in as little as 1 inch of water.) The larger swimming pools can reach depths of about 4.5 feet. Smaller pools can be a mere three inches deep. 

Type of above-ground swimming pool

After you decide on a size, it’s time to think about what kind of above-ground pool you want: Inflatable, steel frame, resin frame, aluminum frame, hybrid, or semi-inground. Don’t worry—it’s not as complicated as it sounds. 

Inflatable pools are self-explanatory: Blow it up, fill it with water, and you’re good to go. 

Steel frame above-ground models are held together with vertical steel supports. The walls and floor of the pool can be plastic, vinyl, or resin. These swimming pools are strong, but they’re also heavy and may rust. Steel also gets hot in the sun. Aluminum-frame pools are lighter than steel frame pools, but to prevent oxidation, the aluminum needs some love and care—and a protective coating. 

Resin above-ground pools are made of strong plastic. They are lighter than steel frame pools, and they won’t rust. They can also take a heavy beating without getting a dent, but they do cost more.

Hybrid pools use multiple materials to create a strong pool that will last. Resin is used to keep things light and cool. Steel supports keep everything in place. These hybrid models offer the best of both worlds, and they are less expensive than resin pools. 

Semi-inground pools are a more permanent solution. Also known as radiant pools, these pools are built with a strong wall of stone or vinyl that matches the outdoor decor. They are designed to fit your specific home, so you have customizable options you don’t get with off-the-shelf pools. However, they are expensive and permanent. The upside: Radiant pools look like stylish in-ground swimming pools.

Pool placement

While above-ground pools are versatile, they can’t be placed just anywhere. Inclines are a no-no, as even the slightest hill can push water against the walls of the pool, causing uneven pressure on the sides and liner. Spreading a few bags of sand across the area can help even things out. 

When installing an above-ground model, you must comply with local building codes and regulations. This usually means you can’t place a pool near power lines or too close to property lines. 

You will also need to factor in two to three feet of perimeter space for unobstructed access to the pool. You want a large, flat, open area of grass, sand, or dirt. Don’t put it on concrete or brick. Stay away from trees. And only install it on a deck if the deck is pool-ready and designed for the job.

Saltwater pool vs. chlorine

Most above-ground pools use harsh chemicals like chlorine to keep the water clear. But a saltwater above-ground pool is the safer alternative. While saltwater pools still need cleaning chemicals, they don’t use nearly as much of the stuff. Saltwater pools are becoming popular for those who want to use fewer chemicals and don’t want to be burdened with maintenance. Swimming in saltwater also feels better. The lower chemical content means the water is not as harsh on your eyes and skin. 

Saltwater above-ground pools are just as easy to set up as other types of pools. And you can also buy a conversion kit that turns standard chlorine pools into saltwater pools.

Installation

Once again, inflatable above-ground pools are the easiest to install. Use a pump to fill the pool with air, then add water. The installation is a bit more involved when using a pool made of vertical supports. While each pool will have its own set of instructions, they can usually be set up within an afternoon and don’t require extra power tools if everything snaps in place snugly. But you will need a helping hand or two to avoid frustration. Make sure the spot is level, lay out the various parts, and understand how the liner attaches to the swimming pool. Take your time, and you should have no trouble installing the pool. 

FAQs

Q: What’s the deepest above-ground pool available?

The deepest above-ground pool available is the Intex 36-Foot by 16-Foot by 52-Inch Above-Ground Pool. The four-foot depth may not seem like a lot, but in the world of above-ground pools, it’s tough to find deeper floors. You can buy specially made above-ground pools with a depth up to six feet, but these are only available from pool-installation companies. And when you go that deep, you must make sure the walls, liner, and supports can handle the water pressure. Even for standard above-ground pools, manufacturers will recommend you only fill the pool to 90-percent capacity. This gives you enough room to get in and swim without dumping gallons of water off the sides.

Q: Are above-ground pools expensive to maintain?

Above-ground pools are not too expensive to maintain. The biggest cost is cleaning chemicals and filter replacements. There are also a few up-front costs you must think about, such as getting a ladder, a pool cover, pool skimmer and net, and other essential pool accessories. You will also need an inflatable hot dog raft because swimming without one causes chronic summer sadness. Saltwater pools are cheaper to maintain, but you’ll still need to pay for salt. And some above-ground models come with filter pumps that are underpowered, so upgrading to a more efficient pump is recommended. All said, it’s still cheaper than an in-ground pool or country club membership.  

Q: How long do above-ground pools last?

Above-ground pools do not last forever. They are temporary warm-weather fun. The liners of even the best above-ground pool will not last much longer than five years. The liners can be replaced, but the pool structure itself—the supports and walls—are only meant to last 15 years at the most. That’s a good reason to keep a close eye on your budget. If a $700 pool lasts 15 years, that’s still only $50 a year. You can get more life out of the permanent, radiant above-ground pools that have a strong wall built around the perimeter, but these pools are costly to install. 

Final thoughts on the best above-ground pools

With the best above-ground pool, your backyard becomes a fun zone. From large rectangle above-ground pools for swimming laps to small oval above-ground pools for parties, you can find a great new way to stay cool this season. With an eye on size and shape, zoom in on the model that fits your needs. Whatever style you choose, swim safe and always supervise children. Also, consider making the jump to a saltwater above-ground pool for a more natural, soothing swim. Whatever you choose, one of these pools will transform your home into a neighborhood oasis.

The post The best above-ground pools in 2023 appeared first on Popular Science.

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The best Memorial Day TV and home theater deals are a sweet sight https://www.popsci.com/gear/best-memorial-day-amazon-home-theater-deals-2023/ Fri, 26 May 2023 12:12:27 +0000 https://www.popsci.com/?p=543929
Memorial Day TV sales products
Stan Horaczek

Fill your room with music, movies, and more during Memorial Day sales on TVs, surround sound systems, and more.

The post The best Memorial Day TV and home theater deals are a sweet sight appeared first on Popular Science.

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Memorial Day TV sales products
Stan Horaczek

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›

Memorial Day TV sales don’t get the credit they deserve. Sure, Black Friday is the grand champ for big cheap TVs, but there are some great deals to be had here on the unofficial start to Summer, too. The new models we first saw at CES are now on the shelves, and slightly older models are getting very solid discounts. You can find especially good deals on the high end of things. So, if you still happen to have some tax return cash kicking around, you can get yourself a great deal. So, grab a hot dog in one hand, your phone in the other, and shop the best Memorial Day TV deals in our big list below.

SAMSUNG 65-Inch Class Neo QLED 8K QN800B Series Mini LED $1,597 (Was $3,299)

Samsung

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Do you need an 8K TV right now? Probably not. But, this TV offers everything you need for it to last years. And, thanks to HDMI 2.1 connectivity, excellent upscaling, and all those pixels, you’ll get a fantastic picture whether you’re gaming or streaming.

Nakamichi Shockwafe Elite 7.2.4 Channel Dolby Atmos/DTS:X Soundbar with Dual 8” Subwoofers (Wireless), 2 Rear Surround Speakers $999 (Was $1,299)

Makamichi

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Nakamichi makes some of the best wireless surround sound systems you can buy, and they’re at the cheapest prices we’ve ever seen for Memorial Day. This kit comes with a powerful soundbar, a pair of eight-inch subwoofers, and a pair of wireless surround speakers. This is a killer setup if you can justify the expense.

More Nakamichi deals

LG TV deals

Samsung TV deals

Sony TV deals

Other TV deals

Home audio deals

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Wetlands lose some environmental protections in new Supreme Court ruling https://www.popsci.com/environment/supreme-court-water-ruling/ Fri, 26 May 2023 12:00:00 +0000 https://www.popsci.com/?p=543948
A sign that reads "Protect Our Waters" outside of the US Supreme Court before a rally to call for protection of the Clean Water Act on October 3, 2022. As the term began, the court was hearing arguments in the case of Sackett v. Environmental Protection Agency.
A sign outside of the US Supreme Court before a rally to call for protection of the Clean Water Act on October 3, 2022. As the term began, the court was hearing arguments in the case of Sackett v. Environmental Protection Agency. Tom Williams/CQ-Roll Call, Inc via Getty Images

The 5-to-4 decision is a huge setback for the EPA and the Clean Water Act.

The post Wetlands lose some environmental protections in new Supreme Court ruling appeared first on Popular Science.

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A sign that reads "Protect Our Waters" outside of the US Supreme Court before a rally to call for protection of the Clean Water Act on October 3, 2022. As the term began, the court was hearing arguments in the case of Sackett v. Environmental Protection Agency.
A sign outside of the US Supreme Court before a rally to call for protection of the Clean Water Act on October 3, 2022. As the term began, the court was hearing arguments in the case of Sackett v. Environmental Protection Agency. Tom Williams/CQ-Roll Call, Inc via Getty Images

On May 25, the Supreme Court of the United States cut back the Environmental Protection Agency’s (EPA) ability to regulate wetlands in another setback for the landmark Clean Water Act. In the 5 to 4 ruling, the court said that the law does not allow the EPA to regulate the discharges into the wetlands that are near a body of water, unless the wetland has a unless they have “a continuous surface connection” to those waters. 

[Related: The EPA’s roll back of the Clean Water Act could impact drinking water for millions of Americans.]

The issue before the court was the reach of the 51-year-old Clean Water Act and how courts should determine what counts as “waters of the United States” for the purposes of legal protection. In 2006, the court ruled in two consolidated cases that wetlands are protected by the Clean Water Act if they have a “significant nexus” to regulated waters. Business interests and property rights groups sought to narrow the regulations in wetlands and areas that are directly connected to “navigable waters,” like lakes and rivers.

This case–Sackett v. Environmental Protection Agency–concerned Michael and Chantell Sackett, a couple who wanted to build a home on what an appeals court called “a soggy residential lot” near Priest Lake in Idaho’s panhandle. The Sacketts began construction in 2007 by filling in the land, and the EPA ordered them to stop. The agency threatened the couple with fines, saying  they must return their property to its original condition. Backed by successful conservative property rights group Pacific Legal Foundation, the Sacketts sued the EPA. A dispute regarding if the lawsuit was premature reached the Supreme Court in an earlier appeal and the justices ruled that the suit could proceed in 2012. Justice Alito said that the Clean Water Act gave the EPA too much power in a concurring opinion that same year.

Thursday’s 5 to 4 majority opinion is the latest decision in a trend where the conservative-leaning court has narrowed the reach of environmental regulations. In 2022, the court restricted the EPA’s authority to curb emissions from power plants in West Virginia v. Environmental Protection Agency

Writing for the majority, Justice Samuel Alito said that the EPA’s interpretation of its power went too far. Chief Justice John Roberts and Justices Clarence Thomas, Neil Gorsuch, and Amy Coney Barrett concurred that the Clean Water Act extends only to those “wetlands with a continuous surface connection to bodies that are waters of the United States in their own rights.”

Justices Sonia Sotomayor, Elena Kagan and Ketanji Brown Jackson, and Brett Kavanaugh, dissented, with Kagan writing a concurring opinion. They agreed that the Sacketts should prevail, but wrote that they would have ruled for them on more narrow grounds without changing what defines “waters in the United States.”

[Related: What would America be like without the EPA?]

In his own dissent, Justice Kavanaugh wrote, “By narrowing the [Clean Water] Act’s coverage of wetlands to only adjoining wetlands, the court’s new test will leave some long-regulated adjacent wetlands no longer covered by the Clean Water Act, with significant repercussions for water quality and flood control throughout the United States.”

Wetlands are some of the most diverse and productive ecosystems on the planet and the US has roughly 75.5 million acres of wetlands. They are an important tool against slowing the pace of human-made climate change, particularly in urban areas, while protecting communities from flooding and storms. 

Since 1972, the Clean Water Act has dramatically cut pollution in America’s waterways, leading to major rebounds of fish species. Since the wetlands like those at the center of the Sackett case have a close relationship with the larger water system of streams and rivers, the court’s ruling has major potential to impact the health and quality of all waterways in the United States. 

“This decision will cause incalculable harm. Communities across the country will pay the price,” Natural Resources Defense Council (NRDC) President & CEO Manish Bapna said in a statement following the ruling. “What’s important now is to repair the damage. The government must enforce the remaining provisions of law that protect the clean water we all rely on for drinking, swimming, fishing, irrigation and more. States should quickly strengthen their own laws. Congress needs to act to restore protections for all our waters.”

Correction (May 30, 2023): Kagan wrote a concurring opinion, not the dissenting opinion as this originally stated. We regret the error.

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An amateur astronomer spotted a new supernova remarkably close to Earth https://www.popsci.com/science/supernova-near-earth-astronomy/ Fri, 26 May 2023 10:00:00 +0000 https://www.popsci.com/?p=543779
M101, also known as the Pinwheel galaxy, captured by the Hubble Space Telescope.
The Messier 101 galaxy, aka the Pinwheel galaxy, is home to the exploded star. Hubble Image: NASA, ESA

A backyard telescope is all you need to spot this nearby exploding star.

The post An amateur astronomer spotted a new supernova remarkably close to Earth appeared first on Popular Science.

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M101, also known as the Pinwheel galaxy, captured by the Hubble Space Telescope.
The Messier 101 galaxy, aka the Pinwheel galaxy, is home to the exploded star. Hubble Image: NASA, ESA

Million of years ago, before land connected Earth’s North and South American continents, about 21 million light years away an aged and bloated star gave up the ghost in dramatic fashion, dying in a cataclysmic supernova explosion.

On Friday, May 19, the light from that massive explosion finally reached the telescope of Japanese amateur astronomer Koichi Itagaki, who alerted the larger astronomical community: The supernova is now officially named SN2023ixf. 

”Those photons that left that exploding star 20 million years ago have just now washed upon our shores from this long, long voyage through the cosmos,” says Grant Tremblay, an astrophysicist at the Harvard and Smithsonian Institute Center for Astrophysics, who has been actively spreading the word of the supernova on social media. “It’s happening now, in that we’re watching this thing finally explode, but the star has been dead for 20 million years.”

SN2023ixf is the closest supernova of its kind to Earth to pop off in five years, and the second closest in the past decade, according to NASA. That makes SN2023ixf a rare opportunity for astronomers to study the fiery death of a star. While too faint to be seen by the naked eye, the supernova should be visible to modest hobbyist telescopes, according to Tremblay. 

Because the supernova will fade rapidly, stargazers have to seize the opportunity to observe it, including at multiple wavelengths.“The whole global community has rallied, from community astronomers to big multibillion-dollar space telescopes,” Tremblay says. 

How to spot supernova SN2023ixf 

SN2023ixf exploded in M101, also known as the Pinwheel galaxy, which is located in the night sky near the constellation Ursa Major. M101 is a bright spiral galaxy that lies face-on from the perspective of Earth and is a member of the Messier catalog of celestial objects, making it a common target for backyard astronomers. A 4.5-inch telescope should be sufficient to view the supernova, which will appear as a bright point of light, according to Sky and Telescope. You can find M101 by first finding Mizar, the star at the bend in Ursa Major’s tail, and following the five stars that lead away from it. Or, to be more precise, you want to point your telescope at a right ascension of 14:03:38.580 and a declination of +54:18:42.10. 

[Related: Astronomers just confirmed a new type of supernova]

Alternatively, the Virtual Telescope Project, a worldwide network of quality amateur telescopes, will livestream an observation of the supernova beginning at 6:30 p.m. Eastern on May 26. 

“M101 is imaged by human beings every single night, all around the world, from hobbyists to all sky observatories like [The Sloan Digital Sky Survey], and so it was inevitable that this thing would be found eventually. But I just loved that Itagaki found yet another supernova,” Tremblay says. Itagaki is not a professional scientist, but he is the co-author of more than a dozen scientific papers based on his supernova observations. Tremblay says Itagaki has a “legendary” ability to spot supernovas, and he’s collecting these “discoveries like Thanos and infinity stones.” Itagaki’s findings include the 2018 supernova SN 2018zd, which proved to be an entirely new type of supernova in the universe. 

Deep Space photo
Astronomer Koichi Itagaki spied the supernova (noted by the two straight lines) in the Pinwheel galaxy. Koichi Itagaki

Catching the bright burst of SN2023ixf on May 19, Itagki submitted his discovery to the International Astronomical Union’s transient name server website. From there, professional astronomers picked up the call, and within a few days, researchers began pointing major ground and space telescopes at the supernova, including the Hubble and James Webb Space Telescopes and the Chandra X-ray observatory.

All those telescopes will be measuring SN2023ixf’s light curve, “meaning the brightening and fading of this target in multiple wavelengths,” Tremblay says, on the spectrum from X-rays to optical light to infrared.

Lessons from an exploded sun

Those observations will help scientists characterize the star that exploded to create SN2023ixf, and more precisely define the type of supernova it is. Astronomers can already tell that SN2023ixf is a Type II, or “core collapse” supernova. This occurs when a massive star exhausts its nuclear fuel. The nuclear fusion reactions in its core can no longer push outward against the force of the star’s own gravity. The star’s core collapses in on itself, and then explodes outward in less than a second. 

“This shock wave propagates outward, and it plows up gas in the ambient surroundings that can light up in all different wavelengths,” Tremblay says. Studying how that afterglow evolves over time will tell scientists about the mass and make up of the late star.

And the makeup of the star is connected to life on Earth—and life anywhere else in the cosmos, if it exists. Stars increase chemical complexity throughout their life cycles: They formed from primordial hydrogen after the Big Bang, fusing it first into helium and then into heavier elements right up to iron. When those stars die in supernovas, the intense heat and pressure form all of the known elements heavier than iron, and seed them throughout the cosmos, providing the raw material for rocky planets and life itself. “The story of life in the universe can be reduced, in many ways, to the story of increasing complexity,” Tremblay says.

The explosion of SN2023ixf is literally shedding light on the process that brought human beings into existence. Though the supernova will rapidly fade, it will remain an object of study for years to come, according to Tremblay. In the meantime, he says, the worldwide excitement around the supernova “is a beautiful illustration of the fact that the global public so effortlessly shares in our wonderment of the cosmos. An exploding star in a distant galaxy just lights up people’s hearts.”

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How to get through to your aging parents without arguing https://www.popsci.com/health/stubborn-older-parents-advice-help-caretaking/ Fri, 26 May 2023 01:00:00 +0000 https://www.popsci.com/?p=543469
Senior man and woman in wheelchair
'You don’t want to rub their nose into their incapacity.'. DepositPhotos

Empathy and a respect for autonomy are needed to care for older loved ones.

The post How to get through to your aging parents without arguing appeared first on Popular Science.

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Senior man and woman in wheelchair
'You don’t want to rub their nose into their incapacity.'. DepositPhotos

This article was originally featured on KFF Health News.

It was a regrettable mistake. But Kim Sylvester thought she was doing the right thing at the time.

Her 80-year-old mother, Harriet Burkel, had fallen at her home in Raleigh, North Carolina, fractured her pelvis, and gone to a rehabilitation center to recover. It was only days after the death of Burkel’s 82-year-old husband, who’d moved into a memory care facility three years before.

With growing distress, Sylvester had watched her mother, who had emphysema and peripheral artery disease, become increasingly frail and isolated. “I would say, ‘Can I help you?’ And my mother would say, ‘No, I can do this myself. I don’t need anything. I can handle it,’” Sylvester told me.

Now, Sylvester had a chance to get some more information. She let herself into her mother’s home and went through all the paperwork she could find. “It was a shambles — completely disorganized, bills everywhere,” she said. “It was clear things were out of control.”

Sylvester sprang into action, terminating her mother’s orders for anti-aging supplements, canceling two car warranty insurance policies (Burkel wasn’t driving at that point), ending a yearlong contract for knee injections with a chiropractor, and throwing out donation requests from dozens of organizations. When her mother found out, she was furious.

“I was trying to save my mother, but I became someone she couldn’t trust — the enemy. I really messed up,” Sylvester said.

Dealing with an older parent who stubbornly resists offers of help isn’t easy. But the solution isn’t to make an older person feel like you’re steamrolling them and taking over their affairs. What’s needed instead are respect, empathy, and appreciation of the older person’s autonomy.

“It’s hard when you see an older person making poor choices and decisions. But if that person is cognitively intact, you can’t force them to do what you think they should do,” said Anne Sansevero, president of the board of directors of the Aging Life Care Association, a national organization of care managers who work with older adults and their families. “They have a right to make choices for themselves.”

That doesn’t mean adult children concerned about an older parent should step aside or agree to everything the parent proposes. Rather, a different set of skills is needed.

Cheryl Woodson, an author and retired physician based in the Chicago area, learned this firsthand when her mother — whom Woodson described as a “very powerful” woman — developed mild cognitive impairment. She started getting lost while driving and would buy things she didn’t need then give them away.

Chastising her mother wasn’t going to work. “You can’t push people like my mother or try to take control,” Woodson told me. “You don’t tell them, ‘No, you’re wrong,’ because they changed your diapers and they’ll always be your mom.”

Instead, Woodson learned to appeal to her mother’s pride in being the family matriarch. “Whenever she got upset, I’d ask her, ‘Mother, what year was it that Aunt Terri got married?’ or ‘Mother, I don’t remember how to make macaroni. How much cheese do you put in?’ And she’d forget what she was worked up about and we’d just go on from there.”

Woodson, author of “To Survive Caregiving: A Daughter’s Experience, a Doctor’s Advice,” also learned to apply a “does it really matter to safety or health?” standard to her mother’s behavior. It helped Woodson let go of her sometimes unreasonable expectations. One example she related: “My mother used to shake hot sauce on pancakes. It would drive my brother nuts, but she was eating, and that was good.”

“You don’t want to rub their nose into their incapacity,” said Woodson, whose mother died in 2003.

Barry Jacobs, a clinical psychologist and family therapist, sounded similar themes in describing a psychiatrist in his late 70s who didn’t like to bend to authority. After his wife died, the older man stopped shaving and changing his clothes regularly. Though he had diabetes, he didn’t want to see a physician and instead prescribed medicine for himself. Even after several strokes compromised his vision, he insisted on driving.

Jacobs’ take: “You don’t want to go toe-to-toe with someone like this, because you will lose. They’re almost daring you to tell them what to do so they can show you they won’t follow your advice.”

What’s the alternative? “I would employ empathy and appeal to this person’s pride as a basis for handling adversity or change,” Jacobs said. “I might say something along the lines of, ‘I know you don’t want to stop driving and that this will be very painful for you. But I know you have faced difficult, painful changes before and you’ll find your way through this.’”

“You’re appealing to their ideal self rather than treating them as if they don’t have the right to make their own decisions anymore,” he explained. In the older psychiatrist’s case, conflict with his four children was constant, but he eventually stopped driving.

Another strategy that can be useful: “Show up, but do it in a way that’s face-saving,” Jacobs said. Instead of asking your father if you can check in on him, “Go to his house and say, ‘The kids really wanted to see you. I hope you don’t mind.’ Or, ‘We made too much food. I hope you don’t mind my bringing it over.’ Or, ‘I wanted to stop by. I hope you can give me some advice about this issue that’s on my mind.’”

This psychiatrist didn’t have any cognitive problems, though he wasn’t as sharp as he used to be. But encroaching cognitive impairment often colors difficult family interactions.

If you think this might be a factor with your parent, instead of trying to persuade them to accept more help at home, try to get them medically evaluated, said Leslie Kernisan, author of “When Your Aging Parent Needs Help: A Geriatrician’s Step-by-Step Guide to Memory Loss, Resistance, Safety Worries, and More.”

“Decreased brain function can affect an older adult’s insight and judgment and ability to understand the risks of certain actions or situations, while also making people suspicious and defensive,” she noted.

This doesn’t mean you should give up on talking to an older parent with mild cognitive impairment or early-stage dementia, however. “You always want to give the older adult a chance to weigh in and talk about what’s important to them and their feelings and concerns,” Kernisan said.

“If you frame your suggestions as a way of helping your parent achieve a goal they’ve said was important, they tend to be much more receptive to it,” she said.

A turning point for Sylvester and her mother came when the older woman, who developed dementia, went to a nursing home at the end of 2021. Her mother, who at first didn’t realize the move was permanent, was furious, and Sylvester waited two months before visiting. When she finally walked into Burkel’s room, bearing a Valentine’s Day wreath, Burkel hugged her and said, “I’m so glad to see you,” before pulling away. “But I’m so mad at my other daughter.”

Sylvester, who doesn’t have a sister, responded, “I know, Mom. She meant well, but she didn’t handle things properly.” She learned the value of what she calls a “therapeutic fiblet” from Kernisan, who ran a family caregiver group Sylvester attended between 2019 and 2021.

After that visit, Sylvester saw her mother often, and all was well between the two women up until Burkel’s death. “If something was upsetting my mother, I would just go, ‘Interesting,’ or, ‘That’s a thought.’ You have to give yourself time to remember this is not the person you used to know and create the person you need to be your parent, who’s changed so much.”

KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.

Life Skills photo

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The Air Force’s ‘Angry Kitten’ has been jamming with drones and jets https://www.popsci.com/technology/air-force-angry-kitten-testing/ Thu, 25 May 2023 22:00:00 +0000 https://www.popsci.com/?p=543846
angry kitten weapon
An engineer specializing in electronic warfare works on an Angry Kitten pod that's on an F-16. Amber Monio / US Air National Guard

The military has tested the "Angry Kitten" electronic warfare system on a variety of airborne platforms, including a Reaper drone. Here's why.

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angry kitten weapon
An engineer specializing in electronic warfare works on an Angry Kitten pod that's on an F-16. Amber Monio / US Air National Guard

In April, the Air Force took its Angry Kitten out for a spin in the skies above Nevada. The feline-monikered system is a tool of electronic warfare, developed originally to simulate enemy systems in testing and training. Now, the Air Force is exploring using the system as an offensive tool, and as a weapon it can bring to future fights. This testing included putting the Angry Kitten on a Reaper drone.

Electronic warfare is an increasingly important part of how modern militaries fight. The systems generally operate on the electromagnetic spectrum outside the range of visible light, making their actions perceived primarily by their resulting negative effects on an adversary, like lost signals or incorrect sensor information. What makes Angry Kitten especially valuable as a training tool, and as a future weapon, is that it uses a software-defined radio to adjust frequencies, perceiving and then mimicking other aircraft, and overall making a fussy mess of their signals.

“Electronic Attack on the MQ-9 is a compelling capability,” said Michael Chmielewski, 556th Test and Evaluation Squadron commander, in a release. “15 hours of persistent noise integrated with a large force package will affect an adversary, require them to take some form of scalable action to honor it, and gets at the heart of strategic deterrence.”

In other words, putting the Angry Kitten on a Reaper drone means that the jamming system can be airborne for a long time, as Reapers are long-endurance drones. Any hostile air force looking to get around the jamming will need to attack the Reaper, which as an uncrewed plane is more expendable than a crewed fighter. Or, it means they will need to route around the jammed area, letting the Air Force dictate the terms of where and how a fight takes place.

Reapers were developed for and widely used during the long counter-insurgency wars waged by the US in Iraq and Afghanistan. These wars saw the drones’ long endurance, slow speed, and ability to loiter over an area as valuable assets, especially since the drones rarely had to contend with any anti-air missiles. They were operating in, to use Pentagon parlance, “uncontested” skies. As the Pentagon looks to the future, one in which it may be called upon to use existing equipment in a war against nations with fighter jets and sophisticated anti-air systems, it’d be easy to see Reapers sidelined as too slow, vulnerable, or irrelevant for the task.

Putting an Angry Kitten on a Reaper is a way to make the drone relevant again for other kinds of war.

[Related: The Air Force wants to start using its ‘Angry Kitten’ system in combat]

“The goal is to expand the mission sets the MQ-9 can accomplish,” said Aaron Aguilar, 556th Test and Evaluation Squadron assistant director of operations, in the same release. “The proliferation and persistence of MQ-9s in theater allows us to fill traditional platform capability gaps that may be present. Our goal is to augment assets that already fill this role so they can focus and prioritize efforts in areas they are best suited for.”

Putting the Angry Kitten on a Reaper turns a counter-insurgency hunter-killer into a conventional-war surveillance platform and jammer. It emphasizes what the tool on hand can already do well, while giving it a different set of ways to interact with a different expected array of foes. 

An earlier exercise this spring saw the Air National Guard test landing and launching a Reaper from a highway in Wyoming, expanding how and where it can operate. The ability to quickly deploy, refuel, rearm, and relaunch Reapers, from found runways as well as established bases, can expand how the drones are used.

In addition to testing the Angry Kitten with Reapers, the Air Force tested the Angry Kitten in Alaska on F-16 Fighting Falcons and A-10 Thunderbolts, both older planes originally designed for warfare against the Soviet Union in the 1980s. In the decades since, Fighting Falcons—known more colloquially as vipers—have expanded to become a widely used versatile fighter in the arsenal of the US and a range of nations. Meanwhile, the Air Force has long worked to retire the A-10s, arguing that they lack protection against modern weapons. That process began in earnest this spring, with the oldest models selected for the boneyard.

In the meantime, putting the Angry Kitten on drones and planes still in service means expanding not just what those planes can do, but potentially how effective they can be against sophisticated weapons. Targeting systems, from those used by planes to find targets to those used by missiles to track them, can be disrupted or fooled by malicious signals. An old plane may not be able to survive a hit from a modern missile, but jamming a missile so that misses its mark is better protection than any armor.

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The best earbuds in 2023, tested and reviewed https://www.popsci.com/reviews/best-earbuds/ Sat, 10 Jul 2021 00:00:00 +0000 https://www.popsci.com/?p=378407
Best earbuds sliced and diced header
Tony Ware

Sweet earbuds to pair with jogs, joy rides, joysticks, joking with coworkers, just music, and more.

The post The best earbuds in 2023, tested and reviewed appeared first on Popular Science.

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Best earbuds sliced and diced header
Tony Ware

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Best overall AirPods Pro 2 in my hand in Times Square Apple AirPods Pro 2
SEE IT

Apple’s AirPods Pro 2 offer the best balance of sound, battery life, comfort, and extra features.

Best noise cancellation Bose QuietComfort Earbuds II in my hand on a Metro train Bose QuietComfort Earbuds II
SEE IT

The Bose QuietComfort Earbuds II will become the most indispensable gadget for your plane trips or commute.

Best budget EarFun Air Pro 3 earbuds with charging case in my hand in front of plants EarFun Air Pro 3
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EarFun’s Air Pro 3 earbuds offer better sound than we’d expect from a pair that cost well under $100.

If you’re wondering just how broad the personal audio market has become, consider the vast world of earbuds, ranging from less than $25 to well over $1,000. While wired earbuds still exist, True Wireless (TWS) earbuds have become the most popular option, thanks to improvements in micro-sized receivers that can deliver huge sound. Bluetooth technology has evolved to the point it can all but guarantee seamless connections, while an array of microphones and sensors help keep music and conversations clear. That means TWS earbuds are no longer a luxury item made by a select few companies. Yet there are still times when a wire is the way to go. Whether you’re an audiophile or a devout Apple enthusiast in the market for sports or gaming earbuds, we’ve compiled what you need to know to find the best earbuds that’ll match your needs.

How we chose the best earbuds

There are nearly infinite earbuds available—models of all shapes, sizes, and price points—so we relied on hands ears-on testing to determine the best ones currently available. Our tests helped us determine the best earbuds for several specific use cases, like gaming or podcast listening, and let us single out pairs that performed best when using key features like active noise cancellation. Audio quality was paramount when making our selections, so each earbud you see below passes our sound quality tests regardless of how much money you spend.

The most discerning listeners will be able to pick up the subtle improvements on more premium pairs, but each set of earbuds will sound great if you open up a streaming app, find the music you’re looking for, and hit play. Our focus has mostly been on TWS types, which have become the dominant style in recent years, popularized in the mainstream by Apple’s AirPods. The convenience of these earbuds is undeniable, and current-generation pairs from well-known audio companies and newcomers alike offer incredible sound for their size. But we threw in some other options, too. There’s no shortage of new and exciting earbuds, but these are the best ones you can get today.

The best earbuds: Reviews & Recommendations

Whether you’re heading out for a trail run, on an open-world quest, or need to get locked in a work groove, you can get a pair of earbuds to suit your needs. And you can find them below, where we’ve collected some of the best options for any purpose and across every price point.

Best overall: Apple AirPods Pro 2

Tony Ware

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Specs

  • Style: True wireless
  • Battery life: Up to 6 hours
  • Active noise cancellation: Yes
  • IP rating: IPX4
  • Microphones: Yes (3)

Pros

  • Well-balanced sound
  • Solid battery life
  • Compatible with Spatial Audio
  • Updated case with “Find My” support

Cons

  • Best technical features only work when connected to Apple devices

Apple’s second-generation AirPods Pro—colloquially known as AirPods Pro 2—are the best earbuds you can get in 2023; there, we said it. The latest version of Apple’s true wireless earbuds feature appreciable improvements in audio quality, active noise-cancelling performance, Spatial Audio support, and they come in an updated case with genuinely useful features. In short, it’s the total package, and it should be the default choice for many, especially if you use Apple devices.

In our first impressions, and continued tests conducted over several months of frequent use, the AirPods Pro 2 consistently impressed. The earbuds don’t have a totally flat frequency response, but Apple’s sonic sculpting—a little extra boost to the bottom end and slightly raised mids—doesn’t make songs sound unnatural or artificial. Music with a lot of low-end sounds extra full without bass distortion, while live music, pop, rock, and jazz benefit from Apple’s tweaks. We never found ourselves wanting to muck around with a digital multiband EQ. Apple did the research to determine what would sound good to most people, and it mostly stuck the landing.

The original AirPods Pro earbuds were lauded for bringing premium active noise cancellation to earbuds, and the second generation brings several improvements in this area. The AirPods Pro 2 could block out far more ambient noise—keys being typed, birds chirpings, footsteps—and loud sporadic noises like a New York City subway car clattering on the tracks. It’s not the best active noise cancellation we’ve experienced in a pair of earbuds, but it’s not too far off.

Apple says the AirPods Pro 2 earbuds get up to six hours of playtime per charge, with an extra 24 hours thanks to its battery case. That’s mostly been true in our experience, though keeping active noise cancellation enabled all the time did drain the earbuds more quickly. With one or two 15-minute breaks, you should be able to get through an entire international flight with the AirPods Pro 2’s ANC turned on. If you work in an office, coffee shop, or at home with another people, the active noise cancellation should be sufficient to create a reasonable buffer between you and the outside world.

One of the big bets with the original AirPods was support for Spatial Audio, a type of binaural surround sound you can take on the go. The technology was impressive, if unproven, but Apple has spent the past few years coaxing artists to re-release classic albums or release new ones with a Dolby Atmos mix. The library for surround sound music on Apple Music has exploded, and the AirPods 2 let you take full advantage of it—though if you want the true Dolby Atmos experience, you’ll need to pony up for an Apple TV and surround sound speaker system.

Spatial Audio tracks on the AirPods 2 do sound more immersive than their stereo counterparts, especially if you enable head tracking, which will automatically pan music based on how your head is turned to recreate the experience of listening to music on speakers. Spatial Audio mixes are still hit or miss, but at least there’s a variety of music to choose from. Apple offers a way to personalize the Spatial Audio experience by taking pictures of your face and ears, but we didn’t notice a big difference and performance.

One of Apple’s most unexpected updates to the AirPods Pro 2 was changing its case. The new case has a larger battery, lanyard loupe, and support for “Find My,” which allows you to track the location of your AirPods 2 case in case the earbuds get lost. A built-in speaker can play a chime, making it easier to find. These welcome improvements make a tangible difference in the earbuds’ overall usability. Sometimes it boils down to nice things being nice.

The only potential downside to using the AirPods Pro 2 is that they’re designed to work best with Apple’s other gear, so if you don’t have an iPhone, iPad, or Mac, you’ll get a slightly worse experience. The AirPods Pro 2 will still sound the same and have identical active noise-cancelling performance, but features like instant pairing are absent. This isn’t a dealbreaker, but it’s something to consider if you live in the Windows and Android world.

Are the AirPods Pro 2 the best-sounding earbuds? No. Are they the best active noise-cancelling earbuds? No, but by offering a great technical and audio experience, they’re the most well-rounded pair. The whole is greater than the sum of its parts, and we can’t imagine anyone complaining about this pair of earbuds.

Best noise-cancelling: Bose QuietComfort Earbuds II

Tony Ware

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Why it made the cut: Bose’s QuietComfort Earbuds II have the most-efficient noise cancellation of any earbuds we’ve ever tested—to an almost eerie extent.

Specs 

  • Style: True wireless
  • Battery life: Up to 6 hours
  • Active noise cancellation: Yes
  • IP rating: IPX7
  • Microphones: Yes (4)

Pros

  • Best-in-class noise cancellation
  • Four microphones per bud
  • Bose app is actually helpful

Cons

  • Only three pairs of eartips are included

Bose’s QuietComfort Earbuds II are actually kind of scary. Their active noise cancellation was so effective that sounds I used to test it, like clapping my hands, didn’t produce an audible sound. The difference between what I was seeing and hearing was actually jarring. At some points, the only thing I could hear and feel was my heartbeat, a unique experience compared to my experience with other ANC earbuds. I’m not alone; our associate managing editor was also impressed while commuting with them on the New York City subway.

The reason for this incredible active noise cancellation? Each bud has two microphones instead of one. The mics are located above and below each bud’s ear tip, which also improves your vocal quality while taking calls. This hardware is tightly integrated with Bose’s custom processor, which continually adjusts to filter frequencies with laser precision. This performance comes in a pair of earbuds that’s roughly a third smaller by volume compared to the first-generation pair and comes in a dramatically smaller case.

If you don’t want to experience the full isolation chamber-like experience the QuietComfort Earbuds II can offer, you can adjust their active noise cancellation via Bose’s mobile app, which is better than you’d expect. The app walked us through the earbud’s initial pairing process and made it easy to switch between quiet and aware—noise cancellation and transparency modes, respectively—and allowed us to set two custom modes based on our personal preferences. We opted to create a “home” mode with active noise cancellation at 100%, allowing us to experience the earbuds’ true potential.

On the audio side, Bose updated the QuietComfort Earbuds II with 9mm dynamic drivers and Bluetooth 5.3 with support for the SBC/AAC codecs. We liked how the earbuds’ sounded out of the box and didn’t need to futz around with the digital EQ in Bose’s app—though we were pleased it was present. We could hear each instrument in complex arrangements, even while listening to lossy audio with ANC on. Subtle sounds—like the piano on “Smog Eyes” by Warne Marsh— were as present as prominent ones, a true feat. The earbuds could have heavy-handed treble on occasion, but that had to do with how certain tracks were mastered rather than a technical deficiency on the earbuds themselves.

There’s no shortage of excellent active noise-cancelling earbuds, but the Bose QuietComfort Earbuds II currently reign supreme.  

Best for multiple devices: Technics EAH-AZ80

Brandt Ranj / Popular Science

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Specs

  • Style: True wireless
  • Battery life: Up to 7 hours
  • Active noise cancellation: Yes
  • IP rating: IPX4
  • Microphones: Yes (8)

Pros

  • Smooth multi-point pairing
  • Four microphones per ear
  • Compact size
  • LDAC support

Cons

  • Cost

Technics may be most synonymous with club turntables thanks to its legendary SL-1200 (now 1210MKII), a deck used worldwide by DJs. Still, music listeners (rather than performers) should immediately acquaint themselves with the company’s new EAH-AZ80 earbuds. Their marquee feature is triple multipoint pairing—the ability to keep the earbuds connected to three devices simultaneously—but that’s just the tip of the iceberg. We’ve had the opportunity to test the earbuds for a couple of weeks, and they’ve become the top pair we’ve tried in 2023.

Let’s start with their multipoint pairing, which works astonishingly well. After pairing the earbuds to a couple of devices, they would automatically connect to both as long as they were within range. If I paused music on the first device, I could hit play on the second, and the audio would immediately start to play. The same was true when I threw a third device into the mix—to be clear, I approach any Bluetooth earbuds multipoint pairing with skepticism, and no earbuds claim to work with three devices. This is very difficult to pull off technically, and the only earbuds that have done it as well are Apple’s AirPods 2. But Apple’s top-tier earbuds only support seamless multipoint pairing when connected to the company’s other devices. The EAH-AZ80s can be multipoint paired with any gear regardless of its operating system.

On the active noise cancellation front, these earbuds stand above the AirPods Pro 2 but not quite at the level of QuietComfort Earbuds II. They blocked out almost—but not quite—as much sound as the latter. Commuters and travelers can turn to Technics earbuds for excellent ANC performance, and it’s up to most of the rest of the audio industry to play catch up. As for how others can hear you through ambient noise, eight high-sensitivity MEMS mics plus advanced noise reduction capture and transmit your voice clearly. Surprisingly, Technics went from off our consumer earbud radar to near the top, but that’s how good the EAH-AZ80s have performed in our tests.

While we were pleased with the earbuds’ technical performance, we were blown away by how good the 10mm free-edge drivers (housed in a custom acoustic chamber) sound. Rich bass, smooth as silk midrange, and clear highs were present each time we hit play. It didn’t matter if we were listening to Miles Davis’ “Kind Of Blue” for the umpteenth time or catching up with the latest Dawes album released earlier this year; the EAH-AZ80s would continue to reveal new sounds during repeated listenings. These are reference-grade Bluetooth earbuds, especially if you’re using one of the few devices that support the LDAC codec (either a small selection of Android smartphones or a dedicated digital audio player), which offers near-lossless audio quality streamed wirelessly. If you have the right setup and audio files, these earbuds are basically peerless.

All of this performance comes at a cost, and while the EAH-AZ80s aren’t the most expensive earbuds out there, they’re a sizable investment. However, if you regularly bounce between different devices, stream high-resolution audio, prefer smaller earbuds, or can appreciate any combination of the three, we can’t see how these earbuds would let you down.

Best battery life: beyerdynamic Free BYRD

Tony Ware

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Specs

  • Style: True wireless
  • Battery life: Up to 11 hours
  • Active noise cancellation: Yes
  • IP rating: IPX4
  • Microphones: Yes (2)

Pros

  • Incredible battery life
  • Bundled with eight sets of ear tips
  • Phenomenal fit

Cons

  • They stick out from your ears

Beyerdynamic has been a part of the audio world for decades, impressing us with its mixing headphones, among others, but its latest long-lasting earbuds took us by surprise. While we were pleased by the Free BYRD’s sound and fit, its 11-hour battery life (eight if you leave active noise cancellation off) is in the top tier of true wireless earbuds. If you toggle ANC on and off regularly, you should have no problem getting nine hours of music playback before popping them back into their case. If you do somehow run out of juice during a single listening session, the Free BYRD’s case offers an hour of music playback off a 10-minute charge.

Most true wireless earbuds last roughly five to six hours with ANC turned on—the extra two hours offered by the Free BYRDs make a huge difference on a transatlantic flight, where tuning out the whirring sound of an engine can make the difference between sleep and misery. The Free BYRDs’ battery life is impressive, but it’s not the only reason they’ve made the cut. We were also very taken by the earbuds’ noise cancellation, which only comes up short when compared to the QuietComfort Earbuds II.

While the Free BYRDs didn’t produce the same eerie isolation chamber-like effect as Bose’s earbuds, they did block out a significant amount of noise. When listening to music at 80%, only the loudest sounds—think a sudden, expected clang, or jackhammer on the street—could pierce the bubble. One of the reasons for this impressive performance was that Beyerdynamic includes eight pairs of eartips in the box, so you can find the ones that fit your ears perfectly.

A tight seal around your ear is essential to getting good active noise-cancelling performance, and the Free BYRDs pass that test with flying colors. A tight seal can put unwanted pressure on the inside of your ear, but that was never the case with these earbuds. Another upside: The earbud seal was so tight we could headbang to our heart’s content without the risk of them falling out.

Concerning audio, the Free BYRDs’ 10mm dynamic drivers produced sound on par with our top-rated earbud pick, the AirPods Pro 2. They support SBC, AAC, and aptX Adaptive codecs in their Bluetooth 5.2 container. In our tests, which included listening to music from different genres and spoken word audio like podcasts and audiobooks, the Free BYRDs never skipped a beat. Everything we listened to sounded surprisingly natural, which is particularly great when listening to people speaking.

Punchy bass, midrange clarity, and never-crispy treble are always a winning combination, as they are here. The sound was so good we never thought about mucking with the digital EQ in beyerdynamic’s MIY app. You can run through a hearing test in the app to tune these earbuds based on how sensitive your ears are to different frequencies, but this is entirely optional. We can’t imagine anyone being upset with the way the Free BYRDs sound out of the box.

You should be aware of the guitar pick-like shape of these earbuds, which makes them protrude from your ears. It’s not that you look silly wearing the Free BYRDS, but they will look different than most modern earbuds. That’s a small price to pay for their great sound, solid active noise cancellation, and exceptional battery life.

Best for sustainability: House of Marley Redemption ANC 2

Brandt Ranj

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Specs

  • Style: True wireless
  • Battery life: Up to 6 hours
  • Active noise cancellation: Yes
  • IP rating: IPX5
  • Microphones: Yes (2)

Pros

  • Made from sustainable materials
  • Fast charging support
  • Surprisingly good fit

Cons

  • Lackluster app

With the Redemption ANC 2 earbuds, House of Marley has made bedfellows out of technology and sustainability without any major concessions. These earbuds—case and all—are made (in part) from a mix of solid bamboo, natural wood fiber composite, and recycled plastics.

In our tests, choosing these materials didn’t impact the Redemption ANC 2s sound, fit, or noise cancellation performance, which is especially impressive considering their relatively low price. They even beat some of our favorite earbuds in the durability department due to their IPX5 rating, which will protect them from damage by sweat or splashes of water—getting caught running in a rainstorm won’t spell trouble. This feature is especially welcome because the Redemption ANC 2 earbuds’ fit is so good that we can easily recommend them for working out. Running and jumping couldn’t dislodge them from our ears.

Active noise cancellation is the namesake feature of these earbuds, and we were pretty pleased with their performance in this area. They aren’t at the level of our more premium earbud recommendations, but that’s to be expected given their sub-$160 price. The earbuds effectively blocked keyboard typing and footsteps, but loud noises like car horns could still be heard prominently. They may not be the best choice for airplane flights, but the Redemption ANC 2s are perfectly suited for office use.

Our experience with the earbuds’ sound was similarly satisfying. We could detect a difference in clarity when comparing the Redemption ANC 2s directly to the AirPods Pro 2 or QuietComfort Earbuds II, but that didn’t dampen our enjoyment of listening to music. If you get these earbuds, you’re not going to be disappointed by the way they sound unless you veer toward audiophile hardware, in which case the Redemption ANC 2s aren’t targeted at you. There was some muddiness in the low end and some sibilance at the high end, but overall the earbuds produced a pleasing sound. You can mitigate some of these audio abnormalities by tuning the EQ in House of Marley’s app, but we were disappointed by how barebones this software was.

Despite this setback, we feel comfortable recommending the House of Marley ANC 2s to anyone who takes the sustainability of their technology seriously. You’ll end up with a good-sounding, great-fitting set of relatively inexpensive true wireless earbuds with a fair lower environmental impact than most gadgets.

Best for gamers: ASUS ROG Cetra

Brandt Ranj / Popular Science

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Specs

  • Style: True wireless
  • Battery life: Up to 5.5 hours
  • Active noise cancellation: Yes (Hybrid)
  • IP rating: IPX4
  • Microphones: Yes (2)

Pros

  • Virtual 7.1 surround sound
  • Case has an LED
  • Price

Cons

  • Not the fullest ANC
  • So-so audio quality for music

ASUS’ ROG Cetra is a pair of budget-priced true wireless earbuds with features designed for gamers—provided you use the company’s Armory Crate software. One advantage of the ROG Cetras is that the earbuds fit into a hardware ecosystem. ASUS has desktops, laptops, mobile gaming handhelds, controllers, and these earbuds are designed to fit in. Their case has a pleasing rounded-off shape, and opening it reveals an LED—a trademark of PC gaming rigs.

The earbuds themselves feel comfortable to wear and get solid battery life for a pair that costs under $100. We didn’t find ourselves reaching for a charger more than twice a week during our tests, which is on par with earbuds that cost three times the price. The biggest difference between the ROG Cetras and their premium counterparts is noise cancellation. These earbuds support hybrid noise cancellation, which uses external and internal feedforward/feedback mics but isn’t fully effective at blocking noise. Light background sounds would fade away, but moderately loud ones remained audible.

A big draw for gamers who use ASUS Armoury Crate software is the ability to activate the low-latency gaming mode and use these earbuds to create a virtual 7.1 surround sound environment. The effect wasn’t as impressive as Spatial Audio on the AirPods Pro 2, but we could hear some additional separation when the settings were correct. The experience varied from game to game, and ASUS can’t control the sound mixing of each title, so your experience may vary.

We’re recommending these earbuds to gamers because they were designed with this use case in mind. Chiptune music from older and indie games, or explosions and dialogue from newer ones, sounded pretty good, but the ROG Cetra’s 10mm drivers weren’t tuned for music, which didn’t sound very clear. Nuances we could hear with higher-end earbuds were gone on the Cetras, and it was more difficult to discern sounds across different frequency ranges. If you need a pair of inexpensive earbuds to pair with your portable gaming machines, these are a solid pick, but music lovers should look at our other recommendations.

Best for working out: Apple Beats Fit Pro

Stan Horaczek

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Specs

  • Style: True wireless
  • Battery life: 6 hours single-charge; 24 hours with case
  • Active noise cancellation: Yes
  • IP rating: IPX4
  • Microphones: Yes

Pros

  • High-performance active noise canceling in a compact earbud design
  • Secure design stays in ear when running or working out
  • Compatible with dynamic head tracking on iOS devices
  • Includes pocket-sized travel case and three eartip options

Cons

  • No wireless charging
  • iOS device required for full functionality
  • Not protected against water immersion
  • No multipoint pairing

We’ve thoroughly reviewed the Apple Beats Fit Pro, and they’re the best for working out thanks to their sound quality, movement-friendly design, and fantastic iOS compatibility. They contain the same proprietary H1 chip found in Apple’s AirPods, enabling near-instantaneous pairing, steady, reliable connections to iOS devices, and battery life optimization. Like AirPods, the Beats Fit Pro earbuds are also fully compatible with iOS head-tracking and Spatial Audio features for simulated surround sound and immersive media listening. Their inclusion of active noise cancellation (ANC) and transparency modes make them equally useful on the road and at the gym. We also love the range of colors these buds come in, particularly their unique skin tone range.

The Beats Fit Pro earbuds are designed to sit securely in your ears using small rubber wings that rest comfortably against your outer ear along with three sets of variously sized ear tips. A quick optional setup step uses the earbuds’ onboard microphones to test your fit for sound leaks. Once your optimal fit is achieved, the Beats Fit Pro can endure almost every exercise imaginable—from running to rowing—without budging. The earbuds’ conveniently pocked-sized charging case brings their total battery life to around 24 hours. While it would be nice to see wireless charging in a product with this price tag, we appreciate that the case is chargeable via USB-C rather than Apple’s proprietary Lightning connector.

If you work out regularly and are an iPhone user, you’d be seriously hard-pressed to find a better in-ear option because of the snug fit, balanced sound, and seamless iOS connectivity. If you’re sold on the Beats features but are looking for an option with earhooks, the Powerbeats Pro earbuds are also a solid choice.

Best planar-magnetic earphones: 7Hertz Timeless AE

Chris Coke

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Specs

  • Style: Wired
  • Type: Closed-back earphones
  • Frequency Response: 5Hz – 40kHz
  • Impedance: 14.8 ohm
  • Sensitivity: 104dB
  • Weight: 5.5 grams (each earpiece)

Pros

  • Very well-tuned, balanced sound
  • Full of detail
  • Good bass performance

Cons

  • Unusual shape 
  • Limited soundstage

Unlike dynamic and balanced armature drivers, which comprise most earbuds, planar magnetics feature larger, thinner membranes—contributing to lighting-quick low-distortion transients but often require more voltage to drive. Luckily, the technology has evolved so that planar earphones are no longer expensive unicorns. Still, there has rarely been such a well-tuned option at such an affordable price. The magic of the 7Hertz Timeless AE lies in the tuning of its 14.2mm drivers (powered by double-sided N52 magnet arrays), updated to provide deeper, more impactful bass and smoother treble for hours of easy listening. It’s a warmer sound that delivers an enjoyable amount of detail, combining to make these earphones a well-balanced buy at $249. If you’re into wired earphones and want ones that don’t skimp on the bass, the 7Hz Timeless AE is an impeccable balance of price and performance. The Timeless isn’t perfect, however. It breaks the mold with the divisive, quarter-like shape of its earpieces. You’ll either be ambivalent about the shape or outright hate the shells—there doesn’t seem to be much in between.

And suppose you’ve got $1,500 and want something exclusively yours. In that case, the Campfire Audio Supermoon is an in-ear monitor featuring 14mm, 2-micron-thick planar drivers in solid-body enclosures custom-molded to your ear canals. The bass is textured but controlled, the midrange is dynamic, and the treble is honest (which can be a good or bad thing, depending on the recording). Planar IEMs are really coming into their own.

Best budget: EarFun Air Pro 3

Tony Ware

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Specs

  • Style: True wireless
  • Battery life: Up to 9 hours
  • Active noise cancellation: Yes (Hybrid)
  • IP rating: IPX5
  • Microphones: Yes (6)

Pros

  • Bluetooth 5.3—with support for SBC, AAC, aptX adaptive, plus LE Audio & LC3
  • Multipoint connectivity
  • 45-hour playtime: 9 hours + 36 hours with wireless-compatible charging case
  • Delivers insane performance:price ratio

Cons

  • ANC, while good, isn’t going to match premium earbuds
  • Mics can pick up wind
  • Volume can seem low with some devices
  • Not going to rival the sonic separation of earbuds that cost 3x as much (but they cost 3x as much)

There’s cheap, and then there’s a bargain, and the two shouldn’t be confused. The EarFun Air Pro 3 is the latter: budget TWS earbuds that pack ridiculous features and value for $79 (less with regular discounts). Stemmed earbuds in the style of their namesake (the AirPods, natch), the Air Pro 3 earbuds feature active noise cancellation, Bluetooth 5.3, six mics, 9 hours of battery life, touch controls, multipoint connections, and more in a classic, comfortable ergonomic form factor. If you like the idea of AirPods but not the price, especially if you want that type of earbuds for an Android device, the Air Pro 3 is a top pick.

Bluetooth 5.3—with support for SBC, AAC, aptX adaptive, plus LE Audio & LC3—delivers a low-power, stable signal to feed the 11mm wool composite dynamic drivers higher-bitrate content. Bass is the standout frequency band, punchy without being paunchy, but its confident strut is nicely balanced by fleshy midrange and bright highs. And QuietSmart 2.0 hybrid active noise cancellation up to 43dB ensures you can enjoy that richly appointed range; it’s not Bose-level ANC but proves more than efficient. Plus, there’s a graphic EQ-enabled app to tweak settings and coax clarity. While imaging isn’t the best, and they’re not the most compact, the EarFun Air Pro 3 earbuds are great if you want to take some fun thump on your commute and they are the budget ANC earbuds to beat, particularly for fans of modern bass-heavy genres.

What to consider when shopping for the best earbuds

From a secure fit to fabulous sound, the best earbuds can provide what you need. Here are the main things to consider when shopping: 

How can I ensure a good fit?

TWS earbuds have become so popular, in part, because companies have been able to develop earbuds that won’t fall out. The best wireless earbuds include ear tips (typically sized S, M, and L, but sometimes including middle sizes like SM or ML) that fit snugly and comfortably in the canal of your ear. Some models offer flexible wings or fins that fit the concha and make the earbuds feel locked in place, while others come with hooks or malleable wires that curl over your ear to secure things. Deciding on the best design is a personal choice but, thankfully, many models come with multiple ear tip options—most often a mix of silicone (better for quick insertion/removal) and foam (better for isolation)—to give you a good chance of finding a fit that’s right for your ears. 

What if I might get caught in the rain?

The best earbuds offer some water resistance, and you can even find waterproof earbuds. The way to determine how your electronics can cope with environmental intrusions is by checking the Ingress Protection, or IP, rating—two numerals that indicate resistance to liquids and dust. Earbuds can go all the way up to an IP68 rating—meaning they can be fully submerged in over 1 meter of water for up to 30 minutes without damage, and won’t be heard by a tumble into the sand at a beach. If you live in a wet climate or work up a prodigious sweat on the treadmill, look for models with higher water-resistance ratings. But if you just need earbuds that can withstand a little drizzle or a few drops of sweat, an IPX4 rating could suffice. Many charging cases for the best wireless earbuds offer their own amount of water and dust protection. However, some of the best budget wireless earbuds sacrifice that added security to reduce costs.  

What if I’m a music-first type? 

TWS earbuds can work for audiophiles. The best earbuds have high-resolution receivers, digital audio converters, custom-tuned drivers, and amplifiers that combine to deliver sound replicating the original recording as closely as possible. Look for the newest 5.2 or 5.3 versions of the Bluetooth protocol with support for codecs (the digital format that compresses and transmits the sound) that match your device to your earbuds. Everyone supports SBC, but Apple prefers AAC, Sony promotes LDAC, and Android devices are likelier to support aptX/aptX HD/aptX adaptive/aptX Lossless. And these various formats operate at varying bitrates, from basic to high-resolution, with the top of the scale minimizing the lossy properties of compression.

Additionally, information like frequency response can tell you how well the earbuds reproduce low tones to high notes—20Hz to 20kHz is the baseline from which to expand—while the maximum decibel output tells you its capability. At the end of the day, the surest test is to see how the buds sound in your ears, but some of the best earbuds offer detailed EQ customization that almost ensures they’ll play music tailored to your tastes. And if you’re looking for the purest signal, it’s always going to come wired.  

What if I need some peace and quiet?

Almost all earbuds provide some amount of passive noise isolation, which means that they are designed with snug-fitting tips that can mute the outside world. Many of the best earbuds, however, offer active noise cancellation (ANC), which means microphones measure surroundings and speakers emit sound waves to neutralize the ambient noise in your environment—the effect makes listeners feel like they are in a cocoon of silence (though some users report a pressurized sensation). Some high-end earbuds step it up to adaptive noise-canceling, which adapts the noise-canceling algorithm based on the sound levels/types or location, and this is often accompanied by a transparency mode, which lets in (and sometimes amplifies) ambient sound when you want to listen to music but also need to hear external announcements, the traffic coming up behind you, etc.    

Yeah, what if I still have devices with a headphone jack?

If you’re an audiophile needing the most full-spectrum sound or a gamer needing the lowest lag, or maybe you’re just traveling and want to plug into the in-flight entertainment, shop for the best wired earbuds. While Bluetooth 5.0 should provide a fairly seamless connection, the only way to entirely eliminate lag or frequency response loss is to plug in—although the best Bluetooth earbuds limit these shortcomings to the point where most users can’t even notice it.

What if I’m taking a lot of calls?

If you want to talk to your helpful virtual assistant or want to handle work calls with your staff, you’ll need earbuds equipped with microphones (and if the earbuds have features including ANC, it’s safe to assume there are mics to spare). Beamforming microphones will focus on your voice rather than the sounds around you, while cheaper microphones may mean your listener will get lost in the chatter if you’re in a busy place. Earbud microphones are typically protected by fabric designed to limit wind noise, but if you have the buds in an amplifying mode rather than a noise-canceling mode, you may find the wind distracting.     

What if I need my earbuds to last all day?

Earbuds offer playtimes anywhere from a couple of hours to the length of a workday. Charging cases add additional hours—or even days—of battery life before needing to be plugged back in (typically with a USB-C connection). While average earbud life is anywhere between four and eight hours, recharging them typically takes 1.5 hours to 3.5 hours. And many of the best earbuds offer quick-charging options that let you gain an hour or so of playtime in a tiny fraction of that time.   

FAQs

Q: Are cheap wireless earbuds good?

Cheap wireless earbuds can be good, especially if you’re just looking for a pair to pump some tunes on jogs or make your commute more bearable. For less than $50, don’t expect superior audio quality. Still, cheap earbuds can offer surprisingly dynamic and detailed sound, and you should be able to find a pair (even True Wireless earbuds) that will fit comfortably, resist sweat, and even handle phone calls.

Q: What should I look for when buying wireless earbuds?

There’s a lot to look for when buying wireless earbuds; your price point and purpose can go a long way toward determining what features you should prioritize. For example, gaming earbuds must limit latency, while the best wireless earbuds for working out must stay in place and repel moisture. Audiophiles may want to spend more for earbuds with high-end processors and/or analog connections that can deliver exceptionally rich and customizable sound. At the same time, shoppers on a budget may be perfectly happy with a set of cheap wireless earbuds that still manage to provide adequate audio quality.

Q: Why are wireless earbuds so expensive?

By now, the technology has developed enough so that wireless earbuds don’t have to be so expensive. Still, building water-resistant earbuds that stay snugly in place and have tiny 6mm drivers and Bluetooth chips that can convert digital data into rich stereo sound costs money, so many of the best earbuds cost more than $100. But at a certain point, wireless earbuds are so expensive because the market allows companies like Apple to charge a premium. Therefore, you’d be wise to compare features and see what it is that you’re really paying for.

Q: How much do wireless earbuds cost?

The best wireless earbuds can cost anywhere from under $75 to over $300, depending on their features. Premium audio hardware (like specialty drivers and advanced Bluetooth receivers), active noise cancellation, multipoint connectivity, and waterproofing are the main drivers of price.

Final thoughts on the best earbuds

In many ways, the best earbuds are earbuds that you don’t even think about. They fit in your ear without coming loose and they deliver a sound quality as good as live music. Still, shopping for the best earbuds leaves you with much to consider. Set your price point and go from there. Then, determining whether you need features like ANC, transparency, low latency, and customizable sound depends on how you plan to use them and the sharpness of your ear. With the array of earbud options available, you can definitely find the best earbuds for you. Here’s to making a sound choice.

Why trust us

Popular Science started writing about technology more than 150 years ago. There was no such thing as “gadget writing” when we published our first issue in 1872, but if there was, our mission to demystify the world of innovation for everyday readers means we would have been all over it. Here in the present, PopSci is fully committed to helping readers navigate the increasingly intimidating array of devices on the market right now.

Our writers and editors have combined decades of experience covering and reviewing consumer electronics. We each have our own obsessive specialties—from high-end audio to video games to cameras and beyond—but when we’re reviewing devices outside of our immediate wheelhouses, we do our best to seek out trustworthy voices and opinions to help guide people to the very best recommendations. We know we don’t know everything, but we’re excited to live through the analysis paralysis that internet shopping can spur so readers don’t have to.

The post The best earbuds in 2023, tested and reviewed appeared first on Popular Science.

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Cozy knit sweaters could help robots ‘feel’ contact https://www.popsci.com/technology/robot-sweaters-yarn/ Thu, 25 May 2023 20:00:00 +0000 https://www.popsci.com/?p=543752
Robot arm encased in smart sweater material
The sensitive 'yarn' encases robots to direct them based on human touch and guidance. Carnegie Mellon

The snuggly garb is used to teach robots how to sense possible collisions in advance.

The post Cozy knit sweaters could help robots ‘feel’ contact appeared first on Popular Science.

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Robot arm encased in smart sweater material
The sensitive 'yarn' encases robots to direct them based on human touch and guidance. Carnegie Mellon

Certain robots can certainly sense cold temperatures, but feeling cold is a whole other ordeal. And yet the world is now blessed with robot sweaters.

To be fair, the new, adorable garb recently designed by an engineering team at Carnegie Mellon University’s Robotics Institute isn’t intended to keep machines warm. As detailed in a research paper scheduled to be presented at 2023 IEEE International Conference on Robotics and Automation, the group utilized the properties of a knitted sweater to create a fabric capable of sensing pressure and contact. The cutting-edge textile can now help indicate direction, orientation, and even grip strength via physical touch. 

[Related: A new material creates clean electricity from the air around it.]

Like its yarn inspiration, the new “RobotSweater” fabric can be woven into whatever three-dimensional shape is needed, and thus fitted over robots’ uneven shapes and surfaces. The knitted material itself features two layers of conductive, metallic fibers capable of conducting electricity. Between those two layers, another lace-like pattern is inserted. When pressure is applied, a closed circuit is generated and subsequently detected by sensors.

In order to ensure the metallic yarn didn’t degrade or break with usage, the team wrapped the wires around snap fasteners at the end of each stripe in the fabric. “You need a way of attaching these things together that is strong, so it can deal with stretching, but isn’t going to destroy the yarn,” James McCann, an assistant professor in Carnegie Mellon’s School of Computer Science (SCS), explained in a statement.

To demonstrate their creation, researchers dressed up a companion robot in their RobotSweater, then pushed it to direct its head and body movement. On a robotic arm, the fabric could respond to guided human pushes, while grabbing the arm itself opened and closed a gripping mechanism.

[Related: Dirty diapers could be recycled into cheap, sturdy concrete.]

Swaddling robots in smart sweaters isn’t just fashionable—it could prove extremely valuable in industrial settings to improve human worker safety. According to the team, most safety barriers are currently extremely rigid and shield-like; encasing machines in flexible, sensitive fabrics, however could make them much more sensitive, and thus able to “detect any possible collision,” said Changliu Liu, an assistant professor of robotics in the SCS. Moving forward, the team hopes to integrate touchscreen inputs like swiping and pinching motions to direct robots. Even if that takes a while to realize, at least the machines will look stylish and cozy.

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Mixing volcanic ash with meteorites may have jump-started life on Earth https://www.popsci.com/science/volcano-meteorite-organic-life-chemistry/ Thu, 25 May 2023 19:00:00 +0000 https://www.popsci.com/?p=543750
The Tungurahua volcano eruption.
Volcanic eruptions may have provided the necessary gases that would become parts of organic molecules. Depositphotos

To search for organisms in space, it's helpful to know the recipe for living things on our planet.

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The Tungurahua volcano eruption.
Volcanic eruptions may have provided the necessary gases that would become parts of organic molecules. Depositphotos

What is life? It’s a fuzzy concept without a single answer. If you asked a philosopher, they might quote Plato and tell you it’s the ability to support yourself and reproduce, though that would make sterile donkeys non-living objects. Ask a biologist and they’ll likely hit you with a textbook definition of life as organized matter with genes—as diverse as a paramecium and an elephant.  

Oliver Trapp, a professor of chemistry at the Ludwig Maximilian University of Munich in Germany, offers a different description. He says life is a “self-sustainable reaction network,” in which organisms have the processes necessary to survive and adapt. This is in line with the definition NASA uses when looking for extraterrestrial life. Having a clear idea of what makes up life, and the conditions needed to sustain it, helps astronomers get a better picture of what to look for when searching for life on other planets. 

Specifically, they could look for the environments that have collected the essential ingredients. Prerequisites to making life, based on what happened during early Earth, are materials for organic chemical reactions. In a new study published today in Scientific Reports, Trapp and his colleagues simulated how our planet received the supplies for life-producing chemical reactions 4.4 billion years ago. They suggest that no special or lucky conditions were necessary. Instead, life on Earth was created from volcanic particles and iron-rich meteorites. These carried the building blocks essential to living things: amino acids, lipids, nucleosides, and sugars.

[Related: Here’s how life on Earth might have formed out of thin air and water]

“Understanding the origins of biology is one of the greatest unsolved scientific questions. It has important implications for understanding how common life may be beyond Earth and for understanding humanity’s place in the universe,” says Henderson (Jim) Cleaves, a chemistry professor at Tokyo Institute of Technology and president of the International Society for the Study of the Origins of Life, who was not involved in the study.

Previous theories suggested that Earth’s volcanoes were the starting points. Lava shaped the continents, and volcanic gases helped create oceans and atmosphere. Early Earth may have had another important boost, too, in the form of chemical-rich meteors falling from the sky. 

Trapp’s new study suggests it was the iron from fallen asteroids that helped convert atmospheric carbon dioxide into organic molecules such as hydrocarbons, aldehydes, and alcohol. “The meteorites entered the dense atmosphere, heated up and then you have this ablation of nanoparticles,” he explains. The natural minerals found on volcanoes would have helped support these chemical reactions.

To determine the interplay of space rocks and Earthly eruptions, the authors simulated the conditions of our young planet in the lab. They purchased chunks of two iron and stony meteorites and dissolved them in acid to create a solution, and soaked in crushed samples of volcanic ash and minerals assumed to have been present billions of years ago. The result was a model of meteorites crash landing on volcanic islands. The team also simulated atmospheric conditions on early Earth by combining carbon dioxide gas with hydrogen gas or water under a high-pressure and high-heat system. 

[Related: A new finding raises an old question: Where and when did life begin?]

Observing the reactions in this pressurized model, the team noticed an increase in the production of aldehydes, formaldehydes, alcohol, hydrocarbons, and acetaldehyde. These organic compounds would then be used in further chemical reactions to make amino acids, lipids, DNA, and RNA molecules. “Even at lower temperatures, the particles were highly reactive and quite robust,” Trapp says. The authors suggest that as Earth’s atmosphere cooled down and became more reactive, it was probably easier for iron to speed along the conversion of carbon dioxide into oxygen-containing organic compounds. 

“It is very interesting to see a demonstration of how micrometeorites could have contributed to prebiotic organic synthesis during their infall,” notes Cleaves. While he says the work provides ample evidence for this theory of how life first emerged, he warns this simulation is dependent on the composition of the early atmosphere. It’s unclear if those conditions existed exactly how the lab simulated them, he says.

Trapp says the findings are a start to uncover what makes up life. As long as the right materials are present, the conditions to sustain living things may not be unique to Earth. This could help space explorers decide if a planet is worth exploring. For example, inactive volcanoes have already been spotted in other places like Jupiter’s moon Io and Europa—a strong contender for extraterrestrial life since it holds a liquid water ocean underneath its icy surface.  

Alternatively, these simulations could rule out otherwise promising worlds. “If a planet is cooling down too quickly and no longer able to convert carbon dioxide into organic compounds, this process would completely stop and essentially cause life to die.” Even if we do stumble on a planet with the optimal environment for life, whether we actually find aliens is another matter entirely.

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A notorious spyware program was deployed during war for the first time https://www.popsci.com/technology/pegasus-spyware-war/ Thu, 25 May 2023 18:00:00 +0000 https://www.popsci.com/?p=543624
Building rubble from missile strike
Nov 05, 2020: Civilian building hit by Azerbaijani armed forces during a missile strike on the villages near Stepanakert. Deposit Photos

An Israeli tech company's Pegasus spyware was detected on the phones of Armenian journalists and other civilians critical of Azerbaijan's incursion.

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Building rubble from missile strike
Nov 05, 2020: Civilian building hit by Azerbaijani armed forces during a missile strike on the villages near Stepanakert. Deposit Photos

The notorious Pegasus software exploit developed by the Israeli tech company NSO Group has allegedly been used for the first time as a weapon against civilians in an international conflict. According to a new report, the software is being used to spy on experts, journalists, and others critical of Azerbaijan’s incursion into the territories of Nagorno-Karabakh in Armenia.

Reports of potentially the first documented case of a sovereign state utilizing the commercial spyware during a cross-border conflict comes courtesy of the digital rights group, Access Now, in collaboration with CyberHUB-AM, the University of Toronto’s Citizen Lab at the Munk School of Global Affairs, Amnesty International’s Security Lab, and independent mobile security researcher, Ruben Muradyan.

[Related: You need to protect yourself from zero-click attacks.]

According to the research team’s findings published on Thursday, at least 12 individuals’ Apple devices were targets of the spyware between October 2020 and December 2022, including journalists, activists, a government worker, and Armenia’s “human rights ombudsperson.” Once infected with the Pegasus software, third-parties can access text messages, emails, and photos, as well as activate microphones and cameras to secretly record communications.

Although Access Now and its partners cannot conclusively link these attacks to a “specific [sic] governmental actor,” the “Armenia spyware victims’ work and the timing of the targeting strongly suggest that the conflict was the reason for the targeting,” they write in the report. As TechCrunch also noted on Thursday, The Pegasus Project, monitoring the spyware’s international usage, previously determined that Azerbaijan is one of NSO Group’s customers.

[Related: Why you need to update your Apple products’ software ASAP.]

Based in Israel, NSO Group claims to provide “best-in-class technology to help government agencies detect and prevent terrorism and crime.” The group has long faced intense international criticism, blacklisting, and lawsuits for its role in facilitating state actors with invasive surveillance tools. Pegasus is perhaps its most infamous product, and offers what is known as a “zero-click” hack. In 2021, PopSci explained:

Unlike the type of viruses you might have seen in movies, this one doesn’t spread. It is targeted at a single phone number or device, because it is sold by a for-profit company with no incentive to make the virus easily spreadable. Less sophisticated versions of Pegasus may have required users to do something to compromise their devices, like click on a link sent to them from an unknown number. 

In September 2021, the University of Toronto’s Citizen Lab discovered NSO Group’s Pegasus spyware on a Saudi Arabian activists’ iPhones that may have proved instrumental in the assassination of US-based Saudi critic Jamal Khashoggi, quickly prompting Apple to release a security patch to its over 1.65 billion users. Later that year the US Department of Commerce added NSO Group to its “Entity List for Malicious Cyber Activities.”

“Helping attack those already experiencing violence is a despicable act, even for a company like NSO Group,” Access Now’s senior humanitarian officer, Giulio Coppi, said in a statement. “Inserting harmful spyware technology into the Armenia-Azerbaijan conflict shows a complete disregard for safety and welfare, and truly unmasks how depraved priorities can be. People must come before profit—it’s time to disarm spyware globally.”

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Extreme weather and energy insecurity can compound health risks https://www.popsci.com/environment/power-outages-weather-climate-health/ Thu, 25 May 2023 17:00:00 +0000 https://www.popsci.com/?p=543460
People who need electronic medical devices and live in poor housing conditions tend to experience higher rates of energy insecurity.
People who need electronic medical devices and live in poor housing conditions tend to experience higher rates of energy insecurity. DepositPhotos

'Certain communities and individuals may experience more and more severe power outages or have less ability to respond.'

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People who need electronic medical devices and live in poor housing conditions tend to experience higher rates of energy insecurity.
People who need electronic medical devices and live in poor housing conditions tend to experience higher rates of energy insecurity. DepositPhotos

In 2020, about 34 million households in the United States experienced some degree of energy insecurity. Energy insecurity is defined as the inability to meet basic household energy needs, like reducing or foregoing basic necessities to pay energy bills. Others may maintain unsafe temperatures at home due to cost concerns, both of which are “chronic” forms of energy insecurity. Individuals may also experience “acute” energy insecurity, or a short-term disruption to energy sources due to infrastructural or environmental reasons, much like power outages.

People who need electronic medical devices and live in poor housing conditions tend to experience higher rates of energy insecurity. A recent Nature Communications study characterized power outages across the country from 2018 to 2020 and found that there were almost 17,500 power outages lasting more than eight hours. Outages of this duration are considered medically relevant because of potential health hazards for vulnerable groups, especially those who require electricity-dependent durable medical equipment (DME) such as oxygen concentrators and infusion pumps. Although some DME can have backup battery power, they only last a few hours.

“Understanding to what extent power outages affect health motivated us to create the county-level power outages dataset,” says Joan Casey, assistant professor of environmental and occupational health sciences at the University of Washington, who was involved in the study. “As our grid ages and climate change worsens, we need to understand who power outages affect.”

[Related: Fossil fuels are causing a buildup of human health problems.]

The authors used local indicators of spatial association (LISA) to identify countries with high levels of social and medical vulnerability alongside frequent power outages. In particular, counties in Arkansas, Louisiana, and Michigan experience frequent medically-relevant power outages and have a high prevalence of electricity-dependent DME use. They “face a high burden and may have more trouble responding effectively, which could result in more adverse health outcomes,” says Casey.

The authors also determined the overlap between climate events occurring on the same day as medically-relevant power outages. They reported that about 62 percent of such outages co-occurred with extreme weather events, like heavy precipitation, anomalous heat, and tropical cyclones. Furthermore, medically-relevant outages are 3.4 times more common on days with a single event and 10 times more common on days with multiple events. Weather and climate events may drive large-scale outages, but increased energy demand from an aging electrical grid may play a role in county-level outages.

Upgrading the grid and relying further on distributed generation like generating and storing renewable energy are necessary to prevent power outages and ensure that huge areas won’t go offline, says Casey. The Department of Energy intends to modernize the grid to increase resiliency, add capacity for clean energy, and optimize power delivery. The department is also investing in energy infrastructure like microgrids, which can disconnect from national infrastructure and continue to run even when the main grid is down, and grid-scale energy storage devices, which store clean electricity to help provide power during peak loads.

“Certain communities and individuals may experience more and more severe power outages or have less ability to respond,” says Casey. “These groups may be persistently marginalized and lack access to generators, charging centers, or health care.”

Communities of color have unequal access to energy generation and battery storage, even though they tend to be the hardest hit when it comes to power outages following extreme climate events. After Hurricane Maria in 2017, rural and Black communities in Puerto Rico appeared to have the longest restoration times. Higher percentages of Hispanic/Latino populations were also associated with longer outages in Florida after Hurricane Irma in 2017. Meanwhile, counties with a higher proportion of Hispanic/Latino residents faced more severe power outages during the 2021 Texas winter storm. Black residents reported more day-long outages as well.

“We need to work to understand who is most at risk during an outage and provide support to these populations,” says Casey. “This could involve preparing health systems to receive patients, community charging stations for those that rely on electricity-dependent medical equipment, or weatherproofing homes to keep indoor temperature at more optimal levels.”

[Related: Heart disease-related deaths rise in extreme heat and extreme cold.]

Developing a registry for individuals medically dependent on electricity would establish a national estimate for this vulnerable population and document their geographic location. This can help state, territorial, and local health departments prioritize efforts and anticipate the resources that first responders should deploy during emergencies. At present, the Department of Health and Human Services only keeps the record of over 2.9 million Medicare beneficiaries who need electricity-dependent DME. The number of DME users covered by other insurance programs is not known. 

Jurisdictions with a high prevalence of prolonged outages could also help vulnerable populations by establishing temporary emergency power stations. Such a solution could make electricity more accessible and reduce avoidable emergency department visits, which may prevent crowding. Together, upgrading the grid, mitigating climate change, and providing alternative electricity sources can all minimize the impacts on power supply faced by vulnerable populations and communities of color.

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AI-assisted brain and spine implants helped a paralyzed man control his legs again https://www.popsci.com/health/brain-spine-implants-paralysis-walk/ Thu, 25 May 2023 16:00:00 +0000 https://www.popsci.com/?p=543497
For the first time after more than a decade of work by researchers in France and Switzerland, a paralyzed man has regained the ability to walk naturally using only his thoughts thanks to two implants that restored communication between his brain and spinal cord. The press conference was held in Lausanne on May 23, 2023.
For the first time after more than a decade of work by researchers in France and Switzerland, a paralyzed man has regained the ability to walk naturally using only his thoughts thanks to two implants that restored communication between his brain and spinal cord. The press conference was held in Lausanne on May 23, 2023. Fabrice Coffrini/AFP via Getty Images

Brain-computer interfaces like these allow for more natural movement than just using spinal cord stimulation alone.

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For the first time after more than a decade of work by researchers in France and Switzerland, a paralyzed man has regained the ability to walk naturally using only his thoughts thanks to two implants that restored communication between his brain and spinal cord. The press conference was held in Lausanne on May 23, 2023.
For the first time after more than a decade of work by researchers in France and Switzerland, a paralyzed man has regained the ability to walk naturally using only his thoughts thanks to two implants that restored communication between his brain and spinal cord. The press conference was held in Lausanne on May 23, 2023. Fabrice Coffrini/AFP via Getty Images

In a groundbreaking new study published earlier this month in the journal Nature, a team of neuroscientists and other researchers detail how electrical devices implanted into the brain and spinal cord of a paralyzed man have helped him walk and even climb stars. 

[Related: The slow, but promising progress of electrode therapy for paralysis.]

The implants communicate wirelessly and fuse together two experimental technologies that are being developed to treat paralysis. One of the devices is inserted into the skull and sits above the brain’s surface. It decodes the patterns involved in walking and sends a signal to the second device that is implanted in the spinal cord. The spinal cord is then stimulated by the electrodes in a precise sequence that activates the leg muscles needed to walk.

According to the study’s authors, the devices provide a “digital bridge” between the brain and the spinal cord that bypasses the injured areas of the spinal cord. The brain-spine interface uses an artificial intelligence thought decoder to read the brain’s intentions. These intentions are detectable as electrical signals in the brain and then match them to muscle movements. 

The patient in this new study is Gert-Jan Oskam, a 40-year-old man from The Netherlands who was paralyzed in a cycling accident in 2011. Oskam received an experimental spinal-cord stimulator in 2017 that retired his ability to walk, according to CEO Dave Marver of Onward Medical. The Netherlands-based biotechnology company manufactures the spinal cord device used in the study.

“We’ve captured the thoughts of Gert-Jan, and translated these thoughts into a stimulation of the spinal cord to re-establish voluntary movement,” study co-author and spinal cord specialist at the Swiss Federal Institute of Technology, Lausanne Grégoire Courtine, said in a press briefing according to The New York Times.

Brain-computer interfaces like these allow for more natural movement than just using spinal cord stimulation alone. Oskam now can even pause mid-gait, adjust his stride, and navigate on irregular terrain like stairs.

Previously, the Onward Medical device was used in a study that restored the ability to walk to nine patients by mapping out the neurons that are associated with the body’s complex commands for walking. Marver told The Washington Post that the company is likely five years away from being able to commercialize a system like the one used in this study and that his aspirations are even broader. “Ultimately, our vision is that a person with paralysis will be able to visit the doctor and select what function they want to restore,” he said.

[Related: I became a cyborg to manage my chronic pain.]

The brain implant that was used in this study was developed by Clinatec and a French government-backed research institute called CEA. 

Some of the limitations to this work include that the brain’s subtle intentions are difficult to distinguish and the same brain-spine interface used for walking, may not be suitable for restoring movement in the upper body. The treatment is also invasive, requiring multiple surgeries and hours of physical therapy. The system, as it currently stands, does not fix all spinal cord paralysis.

This study is one of a number of spinal cord injury treatment advances in recent years. In 2016, a group of scientists restored paralyzed monkey’s ability to walk. In 2018, scientists figured out a way to use electrical-pulse generators to stimulate the brain and allowed partially paralyzed people to walk and ride bicycles again. 

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