Georgia is not heard or seen in the world, and many don't even know the location of the country, says TED Fellow and photographer Daro Sulakauri. Through her striking photographs of life in the shadows of Russian occupation, she uses her...

Usain Bolt vs. Gravity

What challenges lie ahead of a staggering 12,700-kilometer paddle around the entire continent of Australia? Crocodiles and sharks were just the beginning, says Ironwoman Bonnie Hancock. Reflecting on her remarkable feat of becoming the...

How much should we invest in teachers, and what should new investment actually involve? Education innovator Randy Seriguchi Jr. suggests the US should create a "G.I. Bill" for teachers, with a particular emphasis on uplifting Black male...

Jessi and Sam the Bat team up to answer your questions about space, like: How was the universe created?

By 2050, it's estimated that over 65% of the world will be living in cities. We may think of nature as being unconnected to our urban spaces, but trees have always been an essential part of successful cities. Humanity has been uncovering...

How one of the introductory ideas in a field called "measure theory" can be thought of in terms of musical harnomy and dissonance.

Axolotls are one of science's most studied animals. Why, you ask? These extraordinary salamanders are masters of regeneration: they can flawlessly regenerate body parts ranging from amputated limbs and crushed spines to parts of their...

Where science fiction becomes science fact - that is the place Hank is exploring in today's episode of SciShow. Many inventions we use today were first imagined in stories that described fantastical futures. Hank talks...

You should always wear sunscreen when you're playing outside, but you may have noticed that animals are outside all the time and they don't need sunscreen. Why?

Join Jessi and Squeaks as they answer questions in the first viewer mail episode from SciShow Kids!

If a doctor has told you to quit smoking, that's not just because they're worried about lung cancer. Those cigarettes are messing up your body's natural healing process in more ways than one.

If you’ve watch American football on television, you may have wondered how they make that yellow first down line look like it’s actually down on the field.

What makes a book a book? Is it just anything that stores and communicates information? Or does it have to do with paper, binding, font, ink, its weight in your hands, the smell of the pages? To answer these questions, Julie Dreyfuss...

It was the dawn of 1863, and London's not-yet-opened subway system - the first of its kind in the world - had the city in an uproar. Most people thought the project, which cost more than 100 million dollars in today's money, would never...

How one of the introductory ideas in a field called "measure theory" can be thought of in terms of musical harnomy and dissonance.

Very few of us hold jobs that line up directly with our past experiences or what we studied in college. Take TED Resident Jason Shen; he studied biology but later became a product manager at a tech company. In this quick, insightful talk...

Scientists dissect the human scream for the first time, and also re-think what was thought to be the biggest dinosaur in the world.

The record for the fastest thing ever created by humans is a tie between the Helios 2 probe and a manhole cover.

So you think eye licking (also known as worming) is just a harmless bit of foreplay? Think again.

Poet Rives does 8 minutes of lyrical origami, folding history into a series of coincidences surrounding that most surreal of hours, 4 o'clock in the morning.

A billion people in the world lack access to all-season roads. Could the structure of the internet provide a model for how to reach them? Andreas Raptopoulos of Matternet thinks so. He introduces a new type of transportation system that...

Ever wonder what it looks like from a birds-eye-view? Hank explains they see more than you think!

From spirals to spots to fractals, nature is full of interesting patterns. Many of these patterns even resemble geometric shapes. One of the most common? Hexagons. Why do we see this six-sided shape occur so many times in nature? This...