Science & Technology
How plants tell time
Lesson duration 04:20
Morning glories unfurl their petals like clockwork in the early morning. A closing white...
Design, Engineering & Technology
How to detect a supernova
Lesson duration 04:42
Just now, somewhere in the universe, a star exploded. In fact, a supernova occurs every second...
Business & Economics
How people rationalize fraud
Lesson duration 04:35
If you ask people whether they think stealing is wrong, most of them would answer yes. And yet,...
Mathematics
The math behind Michael Jordan’s legendary hang time
Lesson duration 03:46
Michael Jordan’s legendary slam dunk from the free throw line has been calculated at 0.92...
Health
¿Cómo se contagian los gérmenes y por qué nos enferman? - Yannay Khaikin
Lesson duration 05:07
Los gérmenes están en casi todas las superficies con las que estamos en contacto, por lo que es...
Health
What’s the big deal with gluten?
Lesson duration 05:18
If you've been to a restaurant in the last few years, you’ve likely seen the words gluten-free...
Health
How Different Diseases Make You Smell
Lesson duration 02:05
From our friends over at Gross Science, "What's making you sick?" You might be able to tell based...
The Arts
The battle of the Greek tragedies
Lesson duration 05:07
The world of modern theater owes its roots to the tragedians of Ancient Greece. As far back as...
Earth and Space Science
Will future spacecraft fit in our pockets?
Lesson duration 04:37
When you picture a rocket, you might imagine a giant ship carrying lots of fuel, people and...
Social Studies
How I responded to sexism in gaming with empathy
Lesson duration 07:00
Lilian Chen grew up playing Super Smash Brothers Melee. But when her love of the game led her to...
Science & Technology
How batteries work
Lesson duration 04:20
Batteries are a triumph of science—they allow smartphones and other technologies to exist...
Social Studies
Most Shocking Second a Day Video
Lesson duration 01:34
From the organization Save the Children, this video depicts a young girl's life gets turned...
Health
Why do we wrinkle when wet?
Lesson duration 02:10
From the great folks over at SciShow -- Ever wonder why your fingers and toes get wrinkly when...
Health
Debunking the myths of OCD
Lesson duration 04:51
There’s a common misconception that if you like to meticulously organize your things, keep your...
Social Studies
Mansa Musa, one of the wealthiest people who ever lived
Lesson duration 03:55
Mansa Musa, the 14th century African king of the Mali Empire, is said to have amassed a fortune...
Design
The complex geometry of Islamic design
Lesson duration 05:07
In Islamic culture, geometric design is everywhere: you can find it in mosques, madrasas,...
Science & Technology
Sunlight is way older than you think
Lesson duration 04:37
It takes light a zippy 8 minutes to reach Earth from the surface of the Sun. But how long does it...
Social Studies
The wars that inspired Game of Thrones
Lesson duration 06:01
Beginning around 1377, medieval England was shaken by a power struggle between two noble...
Science & Technology
Preguntas a las que nadie sabe responder - Chris Anderson
Lesson duration 12:03
En la primera de una nueva serie de TED-Ed diseñada para catalizar la curiosidad, Chris Anderson,...
Design, Engineering & Technology
How in vitro fertilization (IVF) works
Lesson duration 06:43
Infertility affects 1 in 8 couples worldwide. But in the last 40 years, more than 5 million...
Health
Why do your knuckles pop?
Lesson duration 04:22
Some people love the feeling of cracking their knuckles, while others cringe at the sound. But...
Business & Economics
What causes economic bubbles?
Lesson duration 04:17
During the 1600’s, the exotic tulip became a nationwide sensation; some single bulbs even sold...
Psychology
The price of shame - Monica Lewinsky
Lesson duration 22:31
Monica Lewinsky shares her views on what she calls our “culture of humiliation.”...
Health
What is leukemia?
Lesson duration 04:33
Stem cells found in the bone marrow are crucial for our health because they are needed to become...