In today's news, Michael Aranda stands in for Hank to talk about this year's flu season. <br/>
And no, Hank isn't out sick with the flu - he's on the road and out of the studio for a few weeks!

You know that feeling, when you know a word but it's just out of reach, stuck on the tip of your tongue? Well, why does it happen? And what can you do about it?

Squeaks almost lost a balloon outside, but what would have happened to it had it floated away into the sky?

Inventor Manu Prakash turns everyday materials into powerful scientific devices, from paper microscopes to a clever new mosquito tracker. From the TED Fellows stage, he demos Paperfuge, a hand-powered centrifuge inspired by a spinning...

How is it we know so much of decomposition? The smelly truth? - Body Farms! Michael Aranda explains what happens after you die and how eventually you turn back into dust.

Negotiating thermostat settings can be really frustrating, but your officemate isn't trying to freeze you out on purpose. Stefan explains the science behind why people experience temperatures differently.

Fun fact: Stefan wears a...

You might think weather on earth is pretty crazy, but at least we don't have an apocalyptic shockwave to worry about every 111 days.

The nerve disease ALS left graffiti artist TEMPT paralyzed from head to toe, forced to communicate blink by blink. In a remarkable talk at TEDActive, entrepreneur Mick Ebeling shares how he and a team of collaborators built an...

Hank talks about a shiny element that has fascinated humans for millenia.

In the deep, dark ocean, many sea creatures make their own light for hunting, mating and self-defense. Bioluminescence expert Edith Widder was one of the first to film this glimmering world. At TED2011, she brings some of her glowing...

The city has just opened its one-of-a-kind Faberge Egg Museum, with a single egg displayed on each floor of a 100-story building -- and the world's most notorious jewel thief already has her eyes on the prize. Can you help the thief...

Web cartoonist Randall Munroe answers simple what-if questions ("what if you hit a baseball moving at the speed of light?") using math, physics, logic and deadpan humor. In this charming talk, a reader's question about Google's data...

Everyone dies, but what do we do with those bodies? In this episode of SciShow, Hank explores the various options, from mummification to liquefaction, and everything in between.

A hostile artificial intelligence called NIM has taken over the world's computers. You're the only person skilled enough to shut it down, and you'll only have one chance. Can you survive and shut off the artificial intelligence? Dan...

Jessi and Squeaks are having pancakes, but first they have to make a key ingredient: butter!

The brain is what makes us function, yet we understand so little about how it works. We are learning more about the brain by using new technology to monitor epilepsy patients during surgery. Moran Cerf explains the process doctors use to...

Last week we introduced the idea of socialization and today we’re talking a little more about how it works, including an introduction to five main types of socialization. We’ll explore anticipatory socialization from your family, the...

Lasers are incredible narrow beams of light we can use to do everything from cutting metal to operating on people's eyeballs. But even though we came up with the idea on our own, humans didn’t actually make the first lasers.

Winter means snow, and snow means lots of fun! Jessi and Squeaks love building snowmen and snow forts, but there's one really cool thing made of snow that they can't build themselves: icicles! Join them to learn how these natural winter...

Time stamps:

0:00 - Fake sphere
proof
1:39 - Fake pi
= 4 proof
5:16 - Fake proof that all triangle
s are isosceles
9:54 - Sphere
"proof" explanation
15:09 - p
i = 4 "proof" explanation
16:57 - Triangle "proof"...

Fog might make things seem mysterious and spooky, but it's actually a cool natural phenomenon that happens when cold air affects the water in the air!

FEED ME! In this episode of Crash Course Kids, Sabrina has a chat with us about what living things eat to get energy. What makes something an omnivore, or a carnivore, or an herbivore? And how do plants fit in to all of this? This first...

A whirlwind of energy and ideas, Stephen Ritz is a teacher in New York's tough South Bronx, where he and his kids grow lush gardens for food, greenery -- and jobs. Just try to keep up with this New York treasure as he spins through the...

In this tutorial I show how I synthesized the sound of hydrogen for the "Sound of Hydrogen" video using mathematica - it's a little technical, but you've been requesting it!