TED-Ed
TED-Ed’s mission is to create lessons worth sharing. Feed and expand your curiosity with our award-winning animated shorts - published on YouTube and available with supplemental learning materials on ed.ted.com. Want to suggest an idea for a TED-Ed animation, nominate an educator or animator? Visit our website at: http://ed.ted.com/get_involved. Consider backing us on Patreon. By doing so, you directly support our nonprofit mission to create free, high-quality educational content: https://www.patreon.com/teded For more information on using TED-Ed content for commercial purposes (e.g. employee learning, in a film, or in an online course), please submit a Media Request using this link: https://media-requests.ted.com/
Episodes
October 27, 2026 • 7 mins
Dig into the field of cryobiology and explore the possibility of humans being frozen and preserved for future resurrection.--In 1967, James Bedford had a plan to cheat death. He was the first person to be cryogenically frozen. This process promised to preserve his body until a theoretical future when humanity could cure any illness, and essentially, reverse death. So is it possible to freeze a human, preserve them indefinitely, and...
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October 27, 2026 • 7 mins
View full lesson: http://ed.ted.com/lessons/what-happened-to-antimatter-rolf-landuaParticles come in pairs, which is why there should be an equal amount of matter and antimatter in the universe. Yet, scientists have not been able to detect any in the visible universe. Where is this missing antimatter? CERN scientist Rolf Landua returns to the seconds after the Big Bang to explain the disparity that allows humans to exist today.Less...
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October 27, 2026 • 7 mins
View full lesson: http://ed.ted.com/lessons/how-spontaneous-brain-activity-keeps-you-alive-nathan-s-jacobsUploaded 13-01-15The wheels in your brain are constantly turning, even when you're asleep or not paying attention. In fact, most of your brain’s activities are ones you’d never be aware of … unless they suddenly stopped. Nathan S. Jacobs takes us inside the always active, surprisingly spontaneous brain.Lesson...
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October 27, 2026 • 9 mins
We've been to the moon, we've mapped the continents, we've even been to the deepest point in the ocean -- twice. What's left for the next generation to explore? Biologist and explorer Nathan Wolfe suggests this answer: Almost everything. And we can start, he says, with the world of the unseeably small.Talk by Nathan Wolfe.
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October 27, 2026 • 7 mins
How do we keep labs that handle dangerous pathogens safe and leak-free? Dig into the ongoing debate over virology research. --Since the 1970s, researchers have engineered superbugs. While this research could help us prepare for future outbreaks, the stakes of this work are extremely high: if even one dangerous virus escaped a lab, it could cause a global pandemic. So, what can we do to minimize risk? And is the knowledge gained eve...
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October 27, 2026 • 6 mins
Discover how humans lost their fur as they evolved from primates, and why we still have hair on our bodies.Uploaded 03-06-21--We have lots in common with our closest primate relatives. But comparatively, humans seem a bit… underdressed. Instead of thick fur covering our bodies, many of us mainly have hair on top of our heads— and a few other places. So, how did we get so naked? And why do we have hair where we do? Nina...
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October 27, 2026 • 6 mins
Explore the physics of flight, and discover how aerodynamic lift generates the force needed for planes to fly.--By 1917, Albert Einstein had explained the relationship between space and time. But, that year, he designed a flawed airplane wing. His attempt was based on an incomplete theory of how flight works. Indeed, insufficient and inaccurate explanations still circulate today. So, where did Einstein go wrong? And how exactly do ...
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October 27, 2026 • 7 mins
Check out our Patreon page: https://www.patreon.com/tededUploaded 09-08-18View full lesson: https://ed.ted.com/lessons/how-the-normans-changed-the-history-of-europe-mark-robinsonIn the year 1066, 7,000 Norman infantry and knights sailed in warships across the English Channel. Their target: England, home to more than a million people. Around the same period of time, other groups of Normans were setting forth all across Europe. Who w...
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October 27, 2026 • 6 mins
Practice more problem-solving at https://brilliant.org/TedEd--A few years ago, the king decided your life would be forfeit unless you tripled the gold coins in his treasury. Fortunately, a strange little man appeared and magically performed the feat. Unfortunately, you promised him your first-born child in exchange for his help — and today he’s come to collect. Can you figure out how to outsmart the man and keep your ba...
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October 26, 2026 • 22 mins
Even a death-defying magician has to start somewhere. High-wire artist Philippe Petit takes you on an intimate journey from his first card trick at age 6 to his tightrope walk between the Twin Towers. Talk by Philippe Petit.
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October 26, 2026 • 6 mins
Are black holes indestructible? Explore the theory of Hawking radiation, a process that could lead a black hole to gradually lose mass and evaporate.Uploaded 16-05-19--Black holes are among the most destructive objects in the universe. Anything that gets too close to a black hole, be it an asteroid, planet, or star, risks being torn apart by its extreme gravitational field. By some accounts, the universe may eventually consist enti...
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October 26, 2026 • 6 mins
Find out how a hatchetfish survives its daily journey from the depths of the ocean’s Twilight Zone to the resource-rich surface.Uploaded 25-05-21--You’re traveling deep beneath the ocean’s surface, where faint lights flicker and toothy grins flash. Your mission is to survive these depths and journey to the surface after sundown to feed. And as a hatchetfish, almost every other deep-sea creature is trying to eat yo...
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October 26, 2026 • 6 mins
Learn the science behind how vaccines trigger an immune response and teach our bodies to recognize dangerous pathogens. Uploaded 12-01-15--The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to protect him from the related (and deadly) smallpox virus. But how does this seemingly counterintuitive process work? Kelwalin Dhana...
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October 26, 2026 • 6 mins
View full lesson: http://ed.ted.com/lessons/what-is-dyslexia-kelli-sandman-hurleyUploaded 15-07-13Dyslexia affects up to 1 in 5 people, but the experience of dyslexia isn't always the same. This difficulty in processing language exists along a spectrum -- one that doesn't necessarily fit with labels like "normal" and "defective." Kelli Sandman-Hurley urges us to think again about dyslexic brain function and to celebrate the neurodi...
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October 26, 2026 • 7 mins
Discover what scientists have found buried in the Arctic permafrost, and find out the far-reaching effects of its melting. --In June 2022, a gold miner in the Canadian Yukon made a remarkable discovery. While working on the traditional lands of the Tr’ondëk Hwëch’in First Nation, he uncovered the exceptionally well-preserved, frozen remains of a wooly mammoth calf that died 30,000 years ago. And this find isn’t th...
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October 26, 2026 • 4 mins
View full lesson: http://ed.ted.com/lessons/historical-role-models-amy-bissettaMany notable American historical figures are considered role models -- but why? George Washington was devilishly smart, and Abraham Lincoln was a brave leader, but have you heard of Sybil Ludington or Beriah Green? Amy Bissetta expounds on the lessons of character we can learn from these historical giants, whether you've heard of them or not.Lesson by Am...
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October 26, 2026 • 6 mins
Dig into the science of how cotton transforms from seed to fiber, and how these cotton fibers are used to make everything from fabrics, to currency, and fishing nets.Uploaded 23-01-20--Centuries ago, the Inca developed ingenuous suits of armor that could protect warriors from even the fiercest physical attacks. These hardy structures were made not from iron or steel, but rather something unexpectedly soft: cotton. Today cotton is u...
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October 26, 2026 • 6 mins
Check out our Patreon page: https://www.patreon.com/tededUploaded 14-08-18View full lesson: https://ed.ted.com/lessons/what-really-happened-to-the-library-of-alexandria-elizabeth-cox 2,300 years ago, the rulers of Alexandria set out to fulfill a very audacious goal: to collect all the knowledge in the world under one roof. In its prime, the Library of Alexandria housed an unprecedented number of scrolls and attracted some of the Gr...
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October 26, 2026 • 19 mins
In her talk, Rachel Botsman says we're "wired to share" -- and shows how websites like Zipcar and Swaptree are changing the rules of human behavior. (Filmed at TEDxSydney.)Uploaded 17-07-13Talk by Rachel Botsman. Learn more about your ad choices. Visit megaphone.fm/adchoices
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October 26, 2026 • 22 mins
Alberto Cairo's clinics in Afghanistan used to close down during active fighting. Now, they stay open. In this powerful talk, Cairo tells the moving story of why -- and how he found humanity and dignity in the midst of war. (Filmed at TEDxRC2.)Uploaded 15-08-13Talk by Alberto Cairo. Learn more about your ad choices. Visit megaphone.fm/adchoices
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