TED-Ed

View full lesson: http://ed.ted.com/lessons/why-is-glass-transparent-mark-miodownik

Uploaded 04-02-14

If you look through your glasses, binoculars or a window, you see the world on the other side. How is it that something so solid can be so invisible? Mark Miodownik melts the scientific secret behind amorphous solids.

Lesson by Mark Miodownik, animation by Provincia Studio.



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Dig into the principles of the exposure effect, which helps music listeners become active participants through repetition.

Uploaded 02-09-14

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How many times does the chorus repeat in your favorite song? How many times have you listened to that chorus? Repetition in music isn’t just a feature of Western pop songs, either; it’s a global phenomenon. Why? Elizabeth Hellmuth Margulis walks us through the basic principles of the ‘exposure effect,’ detailing how repetition invites us into music as active participants, rather than passive listeners.

Lesson by Elizabeth Hellmuth Margulis, animation by Andrew Zimbelman for The Foreign Correspondents' Club.

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View full lesson: http://ed.ted.com/lessons/why-we-love-repetition-in-music-elizabeth-hellmuth-margulis
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Explore what happened when the AI system Deep Q Networks (DQN) attempted to beat the Atari game Montezuma’s Revenge.

Uploaded 02-11-21

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In 2013, a group of researchers wanted to create an AI system that could beat every Atari game. They developed a system called Deep Q Networks (DQN) and less than two years later, it was superhuman. But there was one notable exception. When playing Montezuma’s Revenge, DQN couldn’t score a single point. What was it that made this game so vexingly difficult for AI? Brian Christian investigates.

Lesson by Brian Christian, directed by Gavin Edwards, Movult.

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View full lesson: https://ed.ted.com/lessons/how-to-get-better-at-video-games-according-to-babies-brian-christian
Dig deeper with additional resources: https://ed.ted.com/lessons/how-to-get-better-at-video-games-according-to-babies-brian-christian#digdeeper

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Animator's website: https://www.movult.com
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Dig into the scientific theories of why zebras have stripes, and why this unique patterning sets them apart from their equine relatives.

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Zebras belong to the same equine family as horses and donkeys. After their lineage entered Africa, they evolved into three zebra species, lived in social herds, grazed on grasses, and evaded fierce predators. One mystery that has perplexed prominent scientists for decades is the matter of their coats: why are they striped? Cella Wright digs into the common theories about the unique patterning.

Lesson by Cella Wright, directed by Sharon Colman.

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View full lesson: https://ed.ted.com/lessons/the-surprising-reason-zebras-have-stripes-cella-wright
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Animator's website: https://www.sharoncolman.com
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Autonomous cars are coming -- and they're going to drive better than you. Chris Gerdes reveals how he and his team are developing robotic race cars that can drive at 150 mph while avoiding every possible accident. And yet, in studying the brainwaves of professional racing drivers, Gerdes says he has gained a new appreciation for the instincts of professional drivers. (Filmed at TEDxStanford.)

Uploaded 29-08-13

Talk by Chris Gerdes.



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Explore one of the main issues of AI-based predictive models and how it affects user decision-making and accountability.

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A couple has been considering getting engaged, but they’re worried about divorce statistics. An AI-based model was just released that can predict your likelihood of divorce with 95% accuracy. The only catch is the model doesn’t offer any reasons for its results. So, should they decide whether or not to get married based on this AI’s prediction? Thomas Hofweber explores AI’s transparency problem.

Lesson by Thomas Hofweber, directed by Hannah Lau-Walker.

This video was produced in collaboration with the Parr Center for Ethics, housed within the renowned Philosophy Department at the University of North Carolina at Chapel Hill. The Parr Center is committed to integrating abstract work in ethical theory with the informed discussion of practical ethical issues, and prides itself on the development of innovative and inclusive approaches to moral and civic education.

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View full lesson: https://ed.ted.com/lessons/would-you-use-a-machine-that-predicts-your-future-thomas-hofweber
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Animator's website: https://www.hannahlauwalker.com
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Thank you so much to our patrons for your support! Without you this video would not be possible! Jesús Bíquez Talayero, Chels Raknrl, Sai Pranavi Jonnalagadda, Stuart Rice, Jing Chen, Vector-Dopamine math, Jasper Song, Giorgio Bugnatelli, Chardon, Eddy Trochez, OnlineBookClub.org, Eric Shear, Leith Salem, Omar Hicham, Adrian Rotaru, Brad Sullivan, Karen Ho, Niklas Frimberger, Hunter Manhart, Nathan Nguyen, Igor Stavchanskiy, James R DeVries, Grace Huo, Diana Huang, Chau Hong Diem, Orlellys Torre, Corheu, Thomas Mee, Maryann H McCrory, Blas Borde, John Hellmann, Poompak Meephian, Chuck Wofford, Adam Pagan, Wes Winn, Conder Shou, ntiger, Noname, Hansan Hu, David D, Mac Hyney, Keith Ellison, robin valero walters, Lynne Truesdale, Gatsby Dkdc, Matthew Neal, Denis Chon, Julian Oberhofer, Monte Carroll and Eddy.

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View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-body-mass-joy-lin

Uploaded 27-06-13

What if manipulating body mass wasn't just the stuff of epic comic book stories? Is it scientifically possible to manipulate your body mass? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere mortals.

Lesson by Joy Lin, animation by Cognitive Media.



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For decades, researcher Mina Bissell pursued a revolutionary idea -- that a cancer cell doesn't automatically become a tumor, but rather, depends on surrounding cells (its microenvironment) for cues on how to develop. She shares the two key experiments that proved the prevailing wisdom about cancer growth was wrong.

Uploaded 28-06-13

Talk by Mina Bissell.



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Discover what causes desert locusts to transform into crop-consuming plagues and how they directly endanger humanity.

Uploaded 04-11-21

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A ravenous swarm stretches as far as the eye can see. It has no leader or strategic plan; its only goals are to eat, breed, and move on. These are desert locusts— infamous for their capacity for destruction. But most of the time desert locusts are no more dangerous than grasshoppers. So what does it take to turn these harmless insects into a crop-consuming plague? Jeffrey A. Lockwood investigates.

Lesson by Jeffrey A. Lockwood, directed by Franz Palomares.

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Explore the science of how certain HPVs can cause warts, and what you should do if you get one of these bumpy skin growths.

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Throughout history, people have attributed warts to contact with things like sea foam, boiled egg water, and, of course, toads. Fortunately, we now know that warts are not caused by toads, but are actually caused by human papillomaviruses, or HPVs. So, how exactly do HPVs lead to warts? And what should you do if you get one? Cella Wright explores the science of these bumpy skin growths.

Lesson by Cella Wright, directed by Anton Bogaty.

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View full lesson: https://ed.ted.com/lessons/what-are-warts-and-how-do-you-get-rid-of-them-cella-wright
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Animator's website: https://antonbogaty.com
Music: https://soundgoods.tv
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