ted-ed

Mansa Musa, one of the wealthiest people who ever lived

The wars that inspired Game of Thrones

How in vitro fertilization (IVF) works

Why do your knuckles pop?

What causes economic bubbles?

Could your brain repair itself?

How to unboil an egg

What really happens to the plastic you throw away?

What's the difference between accuracy and precision?

What causes bad breath?

Can robots be creative?

Why it's so hard to cure HIV/AIDS

The real story behind Archimedes' Eureka!

Why sitting is bad for you

How does the thyroid manage your metabolism?

The sonic boom problem

Why are some people left-handed?

How do dogs "see" with their noses?

How does your smartphone know your location?

The evolution of the human eye

Einstein's miracle year

The benefits of a good night's sleep

What is a gift economy?

The Atlantic slave trade: What too few textbooks told you

At what moment are you dead?

What are those floaty things in your eye?

Why elephants never forget

How a wound heals itself

How to understand power

The language of lying

The unexpected math behind Van Gogh's "Starry Night"

Is math discovered or invented?

A different way to visualize rhythm

Schrödinger's cat: A thought experiment in quantum mechanics

History vs. Christopher Columbus

A brief history of melancholy