How does caffeine keep us awake? – Hanan Qasim
View full lesson: http://ed.ted.com/lessons/how-does-caffeine-keep-us-awake-hanan-qasim Over 100,000 metric tons of caffeine are con...
Videos & TV
- Sort by: Most viewed
How the heart actually pumps blood – Edmond Hui
View full lesson: http://ed.ted.com/lessons/how-the-heart-actually-pumps-blood-edmond-hui For most of history, scientists weren̵...
How high can you count on your fingers? (Spoiler: much higher than 10) – James Tanton
View full lesson: https://ed.ted.com/lessons/how-high-can-you-count-on-your-fingers-spoiler-much-higher-than-10-james-tanton How hig...
How to defeat a dragon with math – Garth Sundem
View full lesson: http://ed.ted.com/lessons/how-to-defeat-a-dragon-with-math-garth-sundem Having trouble remembering the order of op...
What is déjà vu? What is déjà vu? – Michael Molina
View full lesson: http://ed.ted.com/lessons/what-is-deja-vu-what-is-deja-vu-michael-molina You might have felt it — the feelin...
This is Sparta: Fierce warriors of the ancient world – Craig Zimmer
View full lesson: http://ed.ted.com/lessons/this-is-sparta-fierce-warriors-of-the-ancient-world-craig-zimmer In ancient Greece, viol...
Football physics: The “impossible” free kick – Erez Garty
View full lesson: http://ed.ted.com/lessons/football-physics-the-impossible-free-kick-erez-garty In 1997, Brazilian football player...
The surprising reason you feel awful when you’re sick – Marco A. Sotomayor
View full lesson: http://ed.ted.com/lessons/the-surprising-reason-you-feel-awful-when-you-re-sick-marco-a-sotomayor It starts with a...
Should we eat bugs? – Emma Bryce
View full lesson: http://ed.ted.com/lessons/should-we-eat-bugs-emma-bryce What’s tasty, abundant and high in protein? Bugs! Al...
History vs. Richard Nixon – Alex Gendler
View full lesson: http://ed.ted.com/lessons/history-vs-richard-nixon-alex-gendler The president of the United States of America is o...