The Equation That Can Help Predict Zombie Migration Patterns

The scenario: News reports say that there's been a zombie outbreak at the city hospital. The undead are pouring into the streets, biting hapless citizens. How much time do you have to gather supplies, get out of town and set up a fortified site, before the horde catches up with you? As always, there's a way to… » 12/12/14 2:20pm 12/12/14 2:20pm

What's The Explanation Behind This Incredible Lake-Walking Video?

YouTuber Tomas N and his friend were hiking the High Tatra Mountain range along the border of Slovakia and Poland when they happened upon a frozen lake with astonishingly clear ice. The resulting visual effect – that of walking on air – is really something else. But how did this clear ice come to be? » 12/11/14 11:00am 12/11/14 11:00am

Build This Wave Machine With Duct Tape, Kebab Skewers, and Candy

A lot of people use Slinkies to introduce kids to waves. But Slinky waves can move too fast for people to really wrap their heads around. Instead, science teacher and filmmaker Alom Shaha suggests, they should try this wave machine. You can build it yourself, and you can do it on the cheap. Here's how. » 12/03/14 10:48am 12/03/14 10:48am

​Without Dark Matter, There Would Be No Life

The evolution of life is a 13.8 billion-year-long chain of events, from the Big Bang through the creation of chemical elements, galaxies, planets and the first self-replicating organisms. But without dark matter's influence, says an astrophysicist, it's hard to see how anything as complex as life could have emerged. » 12/02/14 6:40am 12/02/14 6:40am