TED-Ed

Dig into the discovery of antidepressant drugs, how they work, and what we still don’t know about depression.

Uploaded 18-03-21

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In the 1950s, the discovery of two new drugs sparked what would become a multi-billion dollar market for antidepressants. Neither drug was intended to treat depression at all— many doctors and scientists believed psychotherapy was the only approach to treatment. Neil R. Jeyasingam details the decades-long journey that followed and how it revolutionized our understanding of depression.

Lesson by Neil R. Jeyasingam, directed by Skirmanta Jakaitė, Art Shot.

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View full lesson: https://ed.ted.com/lessons/a-brief-history-of-antidepressants-neil-r-jeyasingam
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View full lesson: http://ed.ted.com/lessons/there-s-no-dishonor-in-having-a-disability-steven-claunch

Uploaded 21-08-13

When faced with a bump in the road, sometimes we forget we have a choice: overcome the obstacle or let it overcome you. Steven Claunch, who was born without fingers on his right hand and with one leg shorter than the other and has excelled in basketball nonetheless, explains why obstacles can provide an opportunity to both inspire others and develop character.

Lesson by Steven Claunch, animation by Avi Ofer.



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Dig into what causes the tip of the tongue phenomenon, where your brain struggles to recall a word or term from memory.

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You’re sure you know your 3rd grade teacher’s name— it’s like you’re hovering over it in your mind, but it just won’t materialize. Researchers call this tantalizing torment a “tip-of-the-tongue state,” and it’s something everyone experiences. But what’s actually happening when a word’s caught here, and how can you best get it unstuck? Cella Wright explores why your brain can struggle with recall.

Lesson by Cella Wright, directed by Avi Ofer.

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View full lesson: https://ed.ted.com/lessons/why-do-some-words-get-stuck-on-the-tip-of-your-tongue-cella-wright
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Animator's website: https://aviofer.com
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Thank you so much to our patrons for your support! Without you this video would not be possible! Chin Beng Tan, Tom Boman, Karen Warner, Iryna Panasiuk, Aaron Torres, Eric Braun, Sonja Worzewski, Michael Clement, Adam Berry, Ghaith Tarawneh, Nathan Milford, Tomas Beckett, Alice Ice, Eric Berman, Kurt Paolo Sevillano, Jennifer Heald, Megulo Abebe, isolwi, Kate Sem, Ujjwal Dasu, Angel Alberici, Minh Quan Dinh, Sylvain, Terran Gimpel, Talia Sari, Katie McDowell, Allen, Mahina Knuckles, Charmaine Hanson, Thawsitt, Jezabel, Abdullah Abdulaziz, Xiao Yu, Melissa Suarez, Brian A. Dunn, Francisco Amaya, Daisuke Goto, Matt Switzler, Peng, Tzu-Hsiang, Bethany Connor, Jeremy Shimanek, Mark Byers, Avinash Amarnath, Xuebicoco, Rayo, Po Foon Kwong, Boffin, Jesse Jurman, Scott Markley, and Elija Peterson.

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View full lesson here: http://ed.ted.com/lessons/jon-bergmann-how-to-think-about-gravity

Did you know that when you fall down, the earth falls up to meet you? Explore the counterintuitive equation that describes gravity.

Lesson by Jon Bergmann, animation by TED-Ed.

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Dig into the Prohibition era in the United States, when the government banned the manufacture, sale, and transport of alcohol.

Uploaded 09-07-20

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On January 17, 1920, less than one hour after spirits had become illegal throughout the United States, armed men robbed a Chicago freight train and made off with thousands of dollars worth of whiskey. It was a first taste of the unintended consequences of Prohibition. So what exactly was Prohibition, and why did it happen? Rod Phillips investigates this chapter of American history.

Lesson by Rod Phillips, directed by Gibbons Studio.

Animator's website: http://www.gibbonsstudio.net/
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View full lesson: https://ed.ted.com/lessons/what-happened-when-the-united-states-tried-to-ban-alcohol-rod-phillips

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View full lesson here: http://ed.ted.com/lessons/mark-salata-how-taking-a-bath-led-to-archimedes-principle

Stories of discovery and invention often begin with a problem that needs solving. Summoned by the king to investigate a suspicious goldsmith, the early Greek mathematician Archimedes stumbles upon the principle that would make him famous.

Lesson by Amdon Consulting's Mark Salata, animation by TED-Ed.

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View full lesson: http://ed.ted.com/lessons/how-bees-help-plants-have-sex-fernanda-s-valdovinos

Uploaded 17-06-14

Plants have a hard time finding mates -- their inability to get up and move around tends to inhibit them. Luckily for plants, bees and other pollinator species (including butterflies, moths and birds) help matchmake these lonely plants in exchange for food. Fernanda S. Valdovinos explains how these intricate pollination networks work and how it can all change from one season to the next.

Lesson by Fernanda S. Valdovinos, animation by The Moving Company Animation Studio.



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View full lesson: http://ed.ted.com/lessons/how-to-take-a-great-picture-carolina-molinari

Uploaded 29-07-13

Have you ever looked at your camera and wondered what all of those buttons actually do? For manual photography, the aperture, shutter speed and ISO sensitivity can all be manipulated to get just the right amount of light. Carolina Molinari suggests the best exposure for an action photo, a stunning portrait or a nighttime landscape.

Lesson by Carolina Molinari, animation by TED-Ed.



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Dig into Edo, Japan’s circular economy, and how it helped transform the city into a thriving ecological and cultural center.

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400 years ago, Edo was on the verge of ecological collapse. Years of intense logging had led to massive deforestation and the city faced timber shortages, severe erosion, and frequent flooding. But over just a few decades, Edo became one of the most sustainable and efficient cities in history. So, how did this come about? Roman Krznaric explores Edo's transformation into a circular economy.

Lesson by Roman Krznaric, directed by Héloïse Dorsan-Rachet.

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Dig into the mystery of Nicolas Bourbaki— one of the most influential mathematicians of all time… who never actually existed.

Uploaded 06-07-20

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When Nicolas Bourbaki applied to the American Mathematical Society in the 1950s, he was already one of the most influential mathematicians of his time. He’d published articles in international journals and his textbooks were required reading. Yet his application was firmly rejected for one simple reason: Nicolas Bourbaki did not exist. How is that possible? Pratik Aghor digs into the mystery.

Lesson by Pratik Aghor, directed by Província Studio.

Animator's website: http://www.provincia.network
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View full lesson: https://ed.ted.com/lessons/the-greatest-mathematician-that-never-lived-pratik-aghor

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