TED-Ed

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Uploaded 16-10-18

View full lesson: https://ed.ted.com/lessons/what-if-cracks-in-concrete-could-fix-themselves-congrui-jin

Concrete is the most widely used construction material in the world. It can be found in swathes of city pavements, bridges that span vast rivers and the tallest skyscrapers on earth. But it does have a weakness: it’s prone to catastrophic cracking that has immense financial and environmental impact. What if we could avoid that problem? Congrui Jin explores how to create a more resilient concrete.

Lesson by Congrui Jin, directed by Aeon Production.

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You and the professor have driven your DeLorean back to the past to fix issues with the spacetime continuum caused by your time traveling. But another DeLorean appears with older versions of you and the professor. The professors panic and explain that the universe could collapse now that you’re both in the same time and place. Can you merge the timestreams and travel home? Dan Finkel shows how.

Lesson by Dan Finkel, directed by Igor Coric, Artrake Studio.

This video made possible in collaboration with Brilliant
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View full lesson: https://ed.ted.com/lessons/can-you-solve-the-time-traveling-car-riddle-dan-finkel
Dig deeper with additional resources: https://ed.ted.com/lessons/can-you-solve-the-time-traveling-car-riddle-dan-finkel#digdeeper

Animator's website: https://www.artrake.com
Music: https://www.workplaywork.com
Educator's website: https://mathforlove.com
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View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-miniature-jessica-oreck

Miniature's root may be Latin, but its meaning is rooted in books, where red pigment was used to denote chapter breaks. Jessica Oreck explains how we got from there to the meaning of miniature today: something smaller than others of its class.

Lesson and animation by Jessica Oreck.

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View full lesson: http://ed.ted.com/lessons/the-game-layer-on-top-of-the-world-seth-priebatsch

Uploaded 06-09-13

By now, we're used to letting Facebook and Twitter capture our social lives on the web -- building a "social layer" on top of the real world. In his talk, Seth Priebatsch looks at the next layer in progress: the "game layer," a pervasive net of behavior-steering game dynamics that will reshape education and commerce. (Filmed at TEDxBoston.)

Talk by Seth Priebatsch.



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What does a disgusting image have to do with how you vote? Equipped with surveys and experiments, psychologist David Pizarro demonstrates a correlation between sensitivity to disgusting cues -- a photo of feces, an unpleasant odor -- and moral and political conservatism. (Filmed at TEDxEast.)

Talk by David Pizarro.

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View full lesson: http://ed.ted.com/lessons/the-language-of-lying-noah-zandan

Uploaded 03-11-14

We hear anywhere from 10 to 200 lies a day. And although we’ve spent much of our history coming up with ways to detect these lies by tracking physiological changes in their tellers, these methods have proved unreliable. Is there a more direct approach? Noah Zandan uses some famous examples of lying to illustrate how we might use communications science to analyze the lies themselves.

Lesson by Noah Zandan, animation by The Moving Company Animation Studio.



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Explore the science of why single-use and rechargeable batteries die, and find out why recycling batteries can be challenging.

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Almost all batteries, even single-use batteries, are theoretically rechargeable. That’s because the metals and other chemicals are still there in the battery. So chemically speaking, a dead battery is actually not that different from a fresh one. Then why do batteries die in the first place? And what should you do with them once they’re spent? George Zaidan digs into the science of batteries.

Lesson by George Zaidan, directed by Luisa Holanda.

This video made possible in collaboration with Speed & Scale
Learn more about how TED-Ed partnerships work: https://bit.ly/TEDEdPartners

A special thanks to Sunil Mair who provided information and insights for the development of this video.

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View full lesson: https://ed.ted.com/lessons/why-your-phone-battery-gets-worse-over-time-george-zaidan
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Animator's website: https://www.luisaholanda.com
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View full lesson: http://ed.ted.com/lessons/jane-chen-a-warm-embrace-that-saves-lives

Uploaded 10-08-13

In the developing world, access to incubators is limited by cost and distance, and millions of premature babies die each year. TED Fellow Jane Chen shows an invention that could keep millions of these infants warm -- a design that's safe, portable, low-cost and life-saving.

Talk by Jane Chen.



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View full lesson: http://ed.ted.com/lessons/a-future-beyond-traffic-gridlock-bill-ford

Bill Ford is a car guy -- his great-grandfather was Henry Ford, and he grew up inside the massive Ford Motor Co. So when he worries about cars' impact on the environment, and about our growing global gridlock problem, it's worth a listen. His vision for the future of mobility includes "smart roads," even smarter public transport and going green like never before.

Talk by Bill Ford.

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This riddle was created in partnership with Brilliant. Practice more problem solving here: https://brilliant.org/TedEd/

Uploaded 06-02-20

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Someone has tripped the magical alarms in the Element Temple. When you and the other monks arrive on the scene, you know you have a disaster on your hands. Four young apprentices broke into the temple’s inner chamber to steal the sacred element crystals. But when the alarm went off they panicked, and each of them swallowed a crystal. Can you determine who ate which crystal? Alex Gendler shows how.

Lesson by Alex Gendler, directed by Artrake Studio.

This riddle is adapted from a puzzle that originally appeared in Puzzles for Pleasure, by E.R. Emmet.

Animator's website: https://www.artrake.com
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View full lesson: https://ed.ted.com/lessons/everything...

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