TED-Ed

Explore Gödel’s Incompleteness Theorem, a discovery which changed what we know about mathematical proofs and statements.

Uploaded 20-07-21

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Consider the following sentence: “This statement is false.” Is that true? If so, that would make the statement false. But if it’s false, then the statement is true. This sentence creates an unsolvable paradox; if it’s not true and it’s not false– what is it? This question led a logician to a discovery that would change mathematics forever. Marcus du Sautoy digs into Gödel’s Incompleteness Theorem.

Lesson by Marcus du Sautoy, directed by BASA.

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View full lesson: https://ed.ted.com/lessons/the-paradox-at-the-heart-of-mathematics-godel-s-incompleteness-theorem-marcus-du-sautoy
Dig deeper with additional resources: https://ed.ted.com/lessons/the-paradox-at-the-heart-of-mathematics-godel-s-incompleteness-theorem-marcus-du-sautoy#digdeeper

Animator's website: https://basaestudio.com
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View full lesson: http://ed.ted.com/lessons/a-trip-through-space-to-calculate-distance-heather-tunnell

Uploaded 06-09-13

Imagine two aliens racing across outer space to their moon. Who can we deem the fastest alien? With DIRT -- or the equation Distance = Rate x Time -- we can calculate their rates, using the distance they traveled and the time they took. Heather Tunnell explains how to use this helpful equation to determine which of our alien friends is truly faster.

Lesson by Heather Tunnell, animation by Karrot Animation.



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Follow the legend of Parvati, the Hindu mother of the natural world, as she disappears from Earth and reemerges as Annapurna, the goddess of food.

Uploaded 13-02-20

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Historically, the union between Shiva and Parvati was a glorious one: a sacred combination which brought fertility and connection to all living things. Yet a rift had grown between these two forces. Setting out to prove the importance of her work, Parvati withdrew from the world and sent the Earth into darkness. Antara Raychaudhuri and Iseult Gillespie tell the story of the goddess Annapurna.

Lesson by Antara Raychaudhuri and Iseult Gillespie, directed by Roxane Campoy, music by Stéphane Gassot.

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View full lesson: https://ed.ted.com/lessons/the-legend-of-annapurna-hindu-goddess-of-nourishment-antara-raychaudhuri-and-iseult-gillespie

Thank you so much to our patrons for your support! Without you this video would not be possible! Marylise CHAUFFETON, Karen Goepen-Wee, Sama aafghani, Mandeep Singh, Abhijit Kiran Valluri, Morgan Williams, Kris Siverhus, Jason Weinstein, Tony Trapuzzano, Devin Harris, Brandy Jones, Shawn Quichocho, Gi Nam Lee, Joy Love Om, Miloš Stevanović, Ghassan Alhazzaa, Yankai Liu, Pavel Zalevskiy, Claudia Mayfield, Stephanie Perozo, Joe Giamartino, Filip Dabrowski, Barbara Smalley, Megan Douglas, Tim Leistikow, Andrés Melo Gámez, Renhe Ji, Ka-Hei Law, Michal Salman, Peter Liu, Mark Morris, Catherine Sverko, Misaki Sato, Tan YH, Ph.D., Rodrigo Carballo, SookKwan Loong, Bev Millar, Merit Gamertsfelder, Lex Azevedo, Noa Shore, Taylor Hunter, Kyle Nguyen, MJ Tan Mingjie, Cristóbal Moenne, Goh Xiang Ting Diana, Kevin Wong, Dawn Jordan, Yanira Santamaria, Prasanth Mathialagan and Savannah Scheelings.



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Physicists are used to the idea that subatomic particles behave according to the bizarre rules of quantum mechanics, completely different to human-scale objects. In a breakthrough experiment, Aaron O'Connell has blurred that distinction by creating an object that is visible to the unaided eye, but provably in two places at the same time. In this talk he suggests an intriguing way of thinking about the result.

Talk by Aaron O'Connell.

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Explore some of the most famous arguments in the ancient debate: is math a human construct or part of the fabric of the universe?

Uploaded 27-10-14

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Would mathematics exist if people didn't? Did we create mathematical concepts to help us understand the world around us, or is math the native language of the universe itself? Jeff Dekofsky traces some famous arguments in this ancient and hotly debated question.

Lesson by Jeff Dekofsky, animation by The Tremendousness Collective.

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View full lesson: http://ed.ted.com/lessons/is-math-discovered-or-invented-jeff-dekofsky



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Discover the symbolism of Kazimir Malevich’s “Black Square,” and how it pushed the boundaries of what art is and what it can be.

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In 1915, an exhibition of radical artworks opened in Russia. Many pieces pushed the boundaries of form and style, but one was particularly controversial: Kazimir Malevich’s “Black Square.” Criticized as simple and uninspired, Malevich’s work is more complicated than it first appears— and may not be a painting of a black square at all. Allison Leigh digs into the art style known as Suprematism.

Lesson by Allison Leigh, directed by Alexia Roider, Zedem Media.

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View full lesson: https://ed.ted.com/lessons/why-is-this-black-square-famous-allison-leigh
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Animator's website: https://www.zedemanimations.com
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Thank you so much to our patrons for your support! Without you this video would not be possible! 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, Eddy, Jay M, Constantino Victor Delgado, Andrea Galvagni, Andrew Tweddle, Laurel-Ann Rice, Fernando A. Endo, Helen Lee, pam morgan, sarim haq, Gerardo Castro, Michel-Ange Hortegat, Enes Kirimi, Amaury BISIAUX, ND, Samyogita Hardikar, Vanessa Graulich, Vandana Gunwani, Abdulmohsin Almadi, AJ Lyon and Geoffrey Bultitude.

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View full lesson: http://ed.ted.com/lessons/dead-stuff-the-secret-ingredient-in-our-food-chain-john-c-moore

Uploaded 20-03-14

When you picture the lowest levels of the food chain, you might imagine herbivores happily munching on lush, living green plants. But this idyllic image leaves out a huge (and slightly less appetizing) source of nourishment: dead stuff. John C. Moore details the "brown food chain," explaining how such unlikely delicacies as pond scum and animal poop contribute enormous amounts of energy to our ecosystems.

Lesson by John C. Moore, animation by TED-Ed.



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View full lesson: http://ed.ted.com/lessons/a-rosetta-stone-for-the-indus-script-rajesh-rao

Rajesh Rao is fascinated by "the mother of all crossword puzzles" - how to decipher the 4000 year old Indus script. At TED 2011, he tells how he is enlisting modern computational techniques to read the Indus language, the key piece to understanding this ancient civilization.

Talk by Rajesh Rao.

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Explore how geothermal energy— the heat in the Earth’s crust— is being used to create renewable electricity and power.

Uploaded 29-07-21

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While the weather in Iceland is often cold, wet, and windy, a nearly endless supply of heat bubbles away below the surface. In fact, almost every building in the country is heated by geothermal energy in a process with virtually no carbon emissions. So how exactly does this renewable energy work? Jean-Baptiste P. Koehl explores the two primary models for harnessing the planet's natural heat.

Lesson by Jean-Baptiste P. Koehl, directed by Charlotte Arene.

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View full lesson: https://ed.ted.com/lessons/iceland-s-superpowered-underground-volcanoes-jean-baptiste-p-koehl
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Animator's website: https://vimeo.com/charlottearene
Music: https://soundcloud.com/aim-music
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Jason Fried has a radical theory of working: that the office isn't a good place to do it. In his talk, he lays out the main problems (call them the M and Ms) and offers three suggestions to make work work. (Filmed at TEDxMidWest.)

Uploaded 10-07-13

Talk by Jason Fried.



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