TED Ed

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How does your body know you're full? - Hilary Coller

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History’s deadliest colors - J. V. Maranto

View full lesson: http://ed.ted.com/lessons/history-s-deadliest-colors-j-v-maranto When radium was first discovered, its luminous green color inspired...

Why is it so hard to cure cancer? - Kyuson Yun

Download a free audiobook and support TED-Ed's nonprofit mission: http://adbl.co/2gauxND Check out Siddhartha Mukherjee's "The Emperor of All Maladies...

Can you solve the egg drop riddle? - Yossi Elran

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Can you solve the virus riddle? - Lisa Winer

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-virus-riddle-lisa-winer Your research team has found a prehistoric virus preserved in th...

The strange case of the cyclops sheep - Tien Nguyen

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Where do math symbols come from? - John David Walters

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The history of chocolate - Deanna Pucciarelli

View full lesson: http://ed.ted.com/lessons/the-history-of-chocolate-deanna-pucciarelli If you can't imagine life without chocolate, you're lucky you ...

The myth of Prometheus - Iseult Gillespie

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Why do you need to get a flu shot every year? - Melvin Sanicas

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How did Polynesian wayfinders navigate the Pacific Ocean? - Alan Tamayose and Shantell De Silva

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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 100000 metric tons of caffeine are consumed around the wo...

Are ghost ships real? - Peter B. Campbell

View full lesson: http://ed.ted.com/lessons/are-ghost-ships-real-peter-b-campbell Please note: we are currently working on a fix for an error spotted ...

The rise and fall of the Berlin Wall - Konrad H. Jarausch

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Why incompetent people think they're amazing - David Dunning

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Where do superstitions come from? - Stuart Vyse

View full lesson: http://ed.ted.com/lessons/where-do-superstitions-come-from-stuart-vyse Are you afraid of black cats? Would you open an umbrella indo...

The life cycle of a t-shirt - Angel Chang

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A brief history of banned numbers - Alessandra King

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The complicated history of surfing - Scott Laderman

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Is it bad to hold your pee? - Heba Shaheed

View full lesson: http://ed.ted.com/lessons/is-it-bad-to-hold-your-pee-heba-shaheed Humans should urinate at least four to six times a day, but occasi...

The language of lying — Noah Zandan

View full lesson: http://ed.ted.com/lessons/the-language-of-lying-noah-zandan We hear anywhere from 10 to 200 lies a day. And although we've spent muc...

Why do people join cults? - Janja Lalich

View full lesson: http://ed.ted.com/lessons/why-do-people-join-cults-janja-lalich Today, there are thousands of cults around the world. Broadly speaki...

Why should you read "Macbeth"? - Brendan Pelsue

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The amazing ways plants defend themselves - Valentin Hammoudi

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