Why Do People Take Selfies In Emergencies?

When a United Airlines flight made an emergency landing this summer due to medical situations on board, as the oxygen masks fell down, some passengers’ phone cameras went up. But psychologists say the instinct to snap a selfie in a near-death experience isn’t all narcissism—it’s also about survival and… »9/16/15 3:00pm9/16/15 3:00pm

Here Are the True Radiation Dangers in Your Environment

People are terrified that they’re being exposed to radiation all the time, whether from distant nuclear accident or the mobile devices snuggled against their heads. Generally, they are wrong. Here are the most radioactive objects in the world around you, and the truth about which ones cause health problems. »8/17/15 2:31pm8/17/15 2:31pm

Could You Charge an iPhone with the Electricity in Your Brain?

Ever since Morpheus explained how the machines use humans as batteries in The Matrix, we’ve been fascinated by the idea. But can the human body actually generate enough current to do anything useful? We decided to find out, by asking experts how long it would take a human brain to charge an iPhone. »8/12/15 12:22pm8/12/15 12:22pm

You're Using Neural Networks Every Day Online—Here's How They Work

If you use Google’s new Photos app, Microsoft’s Cortana, or Skype’s new translation function, you’re using a form of AI on a daily basis. AI was first dreamed up in the 1950s, but has only recently become a practical reality — all thanks to software systems called neural networks. This is how they work. »7/13/15 2:03pm7/13/15 2:03pm

The World's Biggest Physics Experiment Is About to Reboot 

The Large Hadron Collider (LHC) is the most audacious physics experiment in human history. Now scientists are about to restart the giant particle collider for a new set of experiments. Last time, they did the almost-impossible and found the Higgs Boson. This time, they might find something even more exciting. »3/20/15 12:21pm3/20/15 12:21pm

9 Facts About Computer Security That Experts Wish You Knew

Every day, you hear about security flaws, viruses, and evil hacker gangs that could leave you destitute — or, worse, bring your country to its knees. But what’s the truth about these digital dangers? We asked computer security experts to separate the myths from the facts. Here’s what they said. »3/04/15 2:11pm3/04/15 2:11pm

How Not to Be Wrong When You're Talking About Smartphone Displays

A lot of amazing engineering and design goes into making your smartphone. And smartphone displays are one of the most important parts — they're your window onto the internet, and the world. But the technical terms we use to describe them can be pretty confusing. Here's how to sound like you know what you're talking… »1/27/15 4:41pm1/27/15 4:41pm

How Close Are We to Elysium-Style Exosuits?

Matt Damon's latest film, Elysium, is set 140 years in the future where society is divided between the elites, who live in a utopian orbital society, and the rest of us, who struggle in squalor down on the planet's surface. To combat this inequality, an unsung hero installs himself into a full-body prosthetic and… »8/06/13 5:34pm8/06/13 5:34pm

The Rainmakers: How Human Beings Control the Weather

Humans have been trying to control the weather since the day we traded in our spears for shovels. Cultures from every corner of the globe have worshipped rain-granting deities, and our sci-fi villains have been obsessed with flood and drought. But in the modern era, we no longer have use for the old water gods. We've… »7/09/13 7:15pm7/09/13 7:15pm