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Animals From fruitflies and birds to humans, there’s debate in the scientific community about whether we’d die without sleep. As anyone who’s ever pulled an all-nighter can attest, sleep feels pretty essential to life. While the field of sleep science has long thought that animals and humans… via Popular Science "https://ift.tt/2NfLwdw"

Gadgets And here come the folding phones. You shouldn't buy Samsung's new folding phone, but it's totally fine to want it. via Popular Science "https://ift.tt/2Xel0WI"

Environment You can tahnk India and China for the abundant leafiness. The blue planet is going green—literally. Since the 1980s, satellite images have shown that leafy cover across the globe has grown by 2.3 percent per decade. via Popular Science "https://ift.tt/2twjP7d"

Technology It's ultrasonic! In addition to showing off the new Samsung "Fold," the company unveiled its new S10 Galaxy smartphones. via Popular Science "https://ift.tt/2Xf7Okn"

Health Nutritionists used to think nuts should be avoided, but now they’re a prescribed part of a well-rounded diet. Nuts are full of fat—it’s what makes peanut butter tastes so good. Heck, it’s why you can even turn a hard nut into a butter-like paste in the first place. All that fat… via Popular Science "https://ift.tt/2txYKcO"

Today's Deal: Save 40% on Night in the Woods !* Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are! *Offer ends Friday at 10AM Pacific Time via Steam RSS News Feed "https://ift.tt/2SMF180"

Technology The jet stream propelled a 787 to super-fast speeds, but determining a plane’s velocity is a complex matter. On Monday, a Boeing 787 operated by Virgin Atlantic hit an astounding ground speed: 801 miles per hour. via Popular Science "https://ift.tt/2IpzKhT"

Health Exposure to air pollution likely contributes to childhood health effects like asthma and pre term birth. Burning fossil fuels causes health effects around the world both in the short and long term. Immediately, things like power plants and cars emit strong pollutants that… via Popular Science "https://ift.tt/2SLIIuO"

Technology High voltage, 40 years ago. Holy Harley high voltage, Batman! Steve Fehr built an electric motorcycle in 1978, teaming with legendary designer Brooks Stevens. What happened to it? via Popular Science "https://ift.tt/2BEnp3N"

Science Our editors scrounged up some truly bizarre facts. What’s the weirdest thing you learned this week? Well, whatever it is, we promise you’ll have an even weirder answer if you listen to PopSci’s hit podcast. via Popular Science "https://ift.tt/2DXyJZb"

For the past few years, we have worked on expanding Steam beyond games and software by building a video platform that supports paid and free video content. In reviewing what Steam users actually watch, it became clear we should focus our effort on offering content that is either directly related to gaming or, is accessory content for games or software sold on Steam. As part of this refocus, we have retired the Video section of the Steam Store menu with an expectation that video content is discovered via the associated game or software store page, or through search, user tags, recommendations, etc. Over the coming weeks a number of non-gaming videos will be retired and will no longer be available for purchase. Previously purchased content will remain available to owners. via Steam RSS News Feed "http://bit.ly/2NfRYRV"

Health A new report shows up to half of potent fentanyl prescriptions were given inappropriately. The medical community now recognizes the dangers opioids pose, but a new study of FDA documents shows that recognition isn’t enough. In an attempt to regulate a… via Popular Science "http://bit.ly/2TWqUcP"

Get lifetime access now for $19.99. Get lifetime access now for $19.99 and learn to type faster and more accurately with Typesy. via Popular Science "http://bit.ly/2GXFAoH"

Science Researchers also finally figured out why Georgia O’Keeffe’s paintings have so many of these pimples. A chapter in the riveting new book “Metal Soaps in Art” gets to the bottom of O’Keeffe’s pimply problems—and gives conversators a new tool to understand their own… via Popular Science "http://bit.ly/2BMo2Z3"

Health Regularly updated to keep you informed. The measles virus is cropping up all over the U.S., and though cases aren’t yet at record levels we’re careening towards a year full of sick children. via Popular Science "http://bit.ly/2Si2vBX"

Technology It has a 270 degree field of view. The C-4 Optics 4.9mm f/3.5 circular fisheye is an awesome piece of optical engineering. via Popular Science "http://bit.ly/2DUB6Mc"