TED & TED-Ed

Do You Really Need 8 Hours of Sleep Every Night?

How did ancient civilizations make ice cream?

How to practice anything effectively

How to gain control of your free time

How does an air conditioner actually work?

The benefits of good posture

How does the stock market work

Who decides how long a second is?

The United States government

What are those floaty things in your eye?

How to speak so that people want to listen

Debunking the myths of OCD

The history of chocolate

5 tips to improve your critical thinking

The philosophy of Stoicism

Why is it so hard to cure cancer

These animals can hear everything

How to prevent political corruption

The history of ketchup

Why is it so dangerous to step on a rusty nail?

Scientists are obsessed with this lake

What happened when these 6 dictators took over?

What makes muscles grow?

Why is "The Scream" screaming?

A brief history of alcohol

What is earwax and should you get rid of it?

Can you prevent Alzheimer's disease?

Why don’t we cover the desert with solar panels?

Why can't you put metal in a microwave?

How do kidney transplants work?