What gives paper money its actual value?

Money is just tinted paper printed with different numbers on it. So what gives the ol' greenbacks its value? The bills used to be tied to the gold standard but now, it's up to The Fed to control how many bills there are. So why can't they just decide to print out ridiculous amounts of bill to make everyone rich? » 6/24/14 1:42am 6/24/14 1:42am

Animation explains how tsunamis form and why they're so scary

Waves come from the wind so tsunamis, which are basically bigger waves, must come from more wind, right? Not exactly. This cute animation explains that though normal waves are formed from above, tsunamis come from below from volcanic eruptions, landslides and earthquakes. They're the real monsters of the sea. » 4/24/14 9:15pm 4/24/14 9:15pm

There Are More Ways To Arrange a Deck of Cards Than Atoms on Earth

When you're shuffling a deck of cards, you're trying your best to ensure everything gets as mixed up as possible. But it turns out you might not have to try so hard. In this wonderful TedEd animation, Yannay Khaikin outlines the staggering number of ways a deck of 52 cards can be arranged. » 3/28/14 12:40pm 3/28/14 12:40pm

Learn More About Time Travel So You Can Be Prepared for the Future

Though most of us probably think time travel only works inside a DeLorean, much smarter folks out there can explain it slightly better than Doc Brown. Like this TED-Ed animation narrated by Colin Stuart. It reveals how time travel is possible, who has time traveled the longest, the history of time travel and the… » 10/24/13 10:06pm 10/24/13 10:06pm