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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.

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  • October 12 · 6 min

    Do personality tests work? - Merve Emre

    Examine how popular personality tests, like the Myers-Briggs Type Indicator and the Enneagram, are designed and their inconsistencies. Uploaded 22-12-20 -- In 1942, a mother-daughter duo named Katherine Cook Briggs and Isabel Briggs Myers developed a questionnaire that classified people’s personalities into 16 types. Called the Myers-Briggs Type Indicator, or MBTI, it would go on to become one of the world’s most widely-used personality tests. But do these tests actually reveal truths about personality? Merve Emre examines their design flaws. Lesson by Merve Emre, directed by Seoro Oh. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/how-do-personality-tests-work-merve-emre Dig deeper with additional resources: https://ed.ted.com/lessons/how-do-personality-tests-work-merve-emre#digdeeper Animator's website: https://www.facebook.com/osropage ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Jennifer Kurkoski, Ryan B Harvey, Abhishek Bansal, Jose Arcadio Valdes Franco, Karl Laius, JY Kang, Charles A Hershberger, Robert Seik, Heidi Stolt, Alexis Hevia, Brady Jones, Christina Salvatore, Karlee Finch, Michael Goldberg, Mario Mejia, Nicolas Silva, Kurt Almendras, Denise A Pitts, Doug Henry, Kristiyan Bonev, Keven Webb, Mihai Sandu, Deepak Iyer, Javid Gozalov, Jaime Arriola, Rebecca Reineke, William Biersdorf, Patricia Alves Panagides, Valeria Sloan Vasquez, Yvette Mocete, Cyrus Garay, Victoria Soler-Roig, Samuel Barbas, Brighteagle, LadyGeek, Curtis Light, Dwight Schrute, Dianne Palomar, Marin Kovachev, Ravi S. Rāmphal, Tekin Gültekin, Gaurav Mathur, Erik Biemans, Tony, Michelle, Katie and Josh Pedretti, Aidan Forero, Sunny Patel, Lowell Fleming, Hoai Nam Tran, Stina Boberg and Kack-Kyun Kim. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 27 min

    Science can settle moral questions - Sam Harris

    View full lesson: http://ed.ted.com/lessons/science-can-answer-moral-questions-sam-harris Questions of good and evil, right and wrong are commonly thought unanswerable by science. But Sam Harris argues that science can -- and should -- be an authority on moral issues, shaping human values and setting out what constitutes a good life. Talk by Sam Harris. Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 6 min

    From enslavement to rebel gladiator: The life of Spartacus - Fiona Radford

    Sign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter Uploaded 17-12-18 View full lesson: https://ed.ted.com/lessons/from-slave-to-rebel-gladiator-the-life-of-spartacus-fiona-radford Spartacus was enslaved — one of millions taken from territories conquered by Rome to work the mines, till the fields or fight for a crowd’s entertainment. Imprisoned for deserting the Roman Army, he and other enslaved people fought their way free and started a rebellion. How did an enslaved man become synonymous with freedom and courage? Fiona Radford delves into the life and legend of Spartacus. Lesson by Fiona Radford, directed by Kozmonot Animation Studio. Thank you so much to our patrons for your support! Without you this video would not be possible! Jordan Tang, Christopher Jimenez, Juan, Tracey Tobkin, Sid , emily lam, Kathryn J Hammond, Elliot Poulin, Noel Situ, Latora Slydell, Sydney Evans, Victor E Karhel, Eysteinn Guðnason, Andrea Feliz, Natalia Rico, Josh Engel, Bárbara Nazaré, Zhexi Shan, PnDAA, Sandra Tersluisen, Ellen Spertus, Fabian Amels, sammie goh, Mattia Veltri, Quentin Le Menez, Yuh Saito, Heather Slater, Dr Luca Carpinelli, Christophe Dessalles, Arturo De Leon, Eduardo Briceño, Ricardo Paredes, David Douglass, Grant Albert, Jen, Megan Whiteleather, Mayank Kaul, Ryohky Araya, Tan YH, Ph.D., Brittiny Elman, Kostadin Mandulov, Yanuar Ashari, Mrinalini , Anthony Kudolo, Querida Owens, Hazel Lam, Manav parmar, Siamak H and Dominik Kugelmann. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 10 min

    Inside OKCupid: The mathematics of digital dating - Christian Rudder

    View full lesson: http://ed.ted.com/lessons/inside-okcupid-the-math-of-online-dating-christian-rudder When two people join a dating website, they are matched according to shared interests and how they answer a number of personal questions. But how do sites calculate the likelihood of a successful relationship? Christian Rudder, one of the founders of popular dating site OKCupid, details the algorithm behind 'hitting it off.' Lesson by Christian Rudder, animation by TED-Ed. Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 7 min

    The surprising origins of the word “lesbian” - Diane J. Rayor

    Discover the works of poet and songwriter Sappho, and find out why only fragments of her poetry still survive. Uploaded 30-09-21 -- Over 2,500 years ago, one of ancient Greece’s most celebrated popstars and erotic poets enraptured listeners. The singer-songwriter offered a uniquely intimate perspective on love, passion, and longing, and was the first on record to combine the words “bitter” and “sweet,” to describe the ups and downs of romance. So, who was this revered figure? Diane J. Rayor uncovers the writings of Sappho. Lesson by Diane J. Rayor, directed by Amir Houshang Moein. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/ancient-greece-s-most-intriguing-erotic-poet-diane-j-rayor Dig deeper with additional resources: https://ed.ted.com/lessons/ancient-greece-s-most-intriguing-erotic-poet-diane-j-rayor#digdeeper Animator's website: https://www.facebook.com/amirhushangmoein ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Juan Pablo Rodriguez Morales, ANNE FINE, Gerardo Castro, Siddharth Toshniwal, Michel-Ange Hortegat, Enes Kirimi, Amaury BISIAUX, Aravind C V, ND, Samyogita Hardikar, Vanessa Graulich, Vandana Gunwani, LvL042, Abdulmohsin Almadi, Andrew Brodski, AJ Lyon, Anandha Krishnan, Geoffrey Bultitude, Mi Mi, Thomas Rothert, Christopher McVay, Carlo Solaroli, Javier Aldavaz, Ivan Yeung, Brian Elieson, Grayson Garbarino, Oge O, Weronika Falkowska, Stefano Esposito, Nevin Spoljaric, Yvonne Feijoo, Sid Chanpuriya, Arjay Arcinue Dineros, Anoom Yasmin, Anoop Varghese, David Yastremski, Noah Webb, B, Erica Guerrero, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Milo Vermeulen, Ryan Weiler, Jesse Lira, Ezekiel Raui and Zongpu Kou. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 23 min

    How I fell in love with a fish - Dan Barber

    View full lesson: http://ed.ted.com/lessons/how-i-fell-in-love-with-a-fish-dan-barber Uploaded 15-02-13 Chef Dan Barber squares off with a dilemma facing many chefs today: how to keep fish on the menu. With impeccable research and deadpan humor, he chronicles his pursuit of a sustainable fish he could love and the foodie's honeymoon he's enjoyed since discovering an outrageously delicious fish raised using a revolutionary farming method in Spain. Talk by Dan Barber. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 6 min

    How to write comedy - Jodie Houlston-Lau

    Download a free audiobook version of “Born A Crime“ and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed Uploaded 16-11-21 -- It may seem counterintuitive, but comedy is often key to a serious story. As a writer, you need your audience to experience a range of emotions, no matter what your genre. Comic relief is a tried-and-true way of creating the varied emotional texture a compelling story needs. So how can you create this effect in your own stories? Jodie Houlston-Lau shares some tips for lightening the mood. Lesson by Jodie Houlston-Lau, directed by Joe Taylor. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/how-to-make-a-sad-story-funny-jodie-houlston-lau Dig deeper with additional resources: https://ed.ted.com/lessons/how-to-make-a-sad-story-funny-jodie-houlston-lau#digdeeper Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/born-a-crime Animator's website: https://www.joetaylor.work ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Grayson Garbarino, Oge O, Weronika Falkowska, Stefano Esposito, Nevin Spoljaric, Yvonne Feijoo, Sid Chanpuriya, Arjay Arcinue Dineros, Anoom Yasmin, Anoop Varghese, David Yastremski, Noah Webb, B, Erica Guerrero, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Milo Vermeulen, Ryan Weiler, Jesse Lira, Ezekiel Raui, Zongpu Kou, Cameron Chakraverty, Petr Vacek, Rhys Patterson, Dennis, Olivia Fu, Katrina Adams, Regina Post, Mary Collins, Kari Teffeau, clumsybunnie, Adam Leos, Cindy Lai, Liz, Rajath Durgada Manjunath, Dan Nguyen, Chin Beng Tan, Tom Boman, Karen Warner, Isorn Sookwanish, Iryna Panasiuk, Diane Gallin, Aaron Torres, Vasundhar, Eric Braun and Denka Wee. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 7 min

    The Norse myth that inspired “The Lord of the Rings” - Iseult Gillespie

    Download a free audiobook version of “The Lord of the Rings: The Fellowship of the Ring“ and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed Uploaded 28-10-21 -- The dwarves were master craftspeople. One dwarf, Andvari, forged marvelous creations. He often took the form of a fish and, one day, he swam to the land of the water nymphs, who guarded mounds of gold. When the nymphs laughed at his appearance, Andvari grew infuriated and seized their gold. With it, he crafted himself a special ring. Iseult Gillespie shares the Norse myth of the cursed ring. Lesson by Iseult Gillespie, directed by BASA. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/the-norse-myth-that-inspired-the-lord-of-the-rings-iseult-gillespie Dig deeper with additional resources: https://ed.ted.com/lessons/the-norse-myth-that-inspired-the-lord-of-the-rings-iseult-gillespie#digdeeper Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/kalevala Animator's website: https://www.basaestudio.com ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Xiao Yu, Melissa Suarez, SpartacusDMR, Brian A. Dunn, Francisco Amaya, Daisuke Goto, Matt Switzler, Leonardo Monrroy, Maryam, Bethany Connor, Jeremy Shimanek, Mark Byers, Avinash Amarnath, Xuebicoco, Rare Media, Rayo, Po Foon Kwong, NinjaBoffin, Jesse Jurman, Scott Markley, Elija Peterson, Ovidiu Mrd, paul g mohney, Aravind Battaje, Steven Razey, Nathan Giusti, Helen Lee, Anthony Arcis Benedict, Karthik Balsubramanian, John Hong, Annastasshia Ames, Sean, Amy Lopez, Vinh-Thuy Nguyen, Liz Candee, Ugur Doga Sezgin, Anthony Arcis, Karmi Nguyen, John C. Vesey, Yelena Baykova, Harshita Jagdish Sahijwani, Nick Johnson, Carlos H. Costa, Robert Patrick, Jennifer Kurkoski, Ryan B Harvey, Abhishek Bansal, Akinola Emmanuel, Jose Arcadio Valdes Franco and Sebastiaan Vleugels. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 6 min

    The murder of ancient Alexandria's greatest scholar - Soraya Field Fiorio

    Dive into the life of one of Ancient Rome’s most powerful figures, Hypatia of Alexandria, a renowned scholar and political advisor to the city's leaders. Uploaded 01-08-19 -- In the city of Alexandria in 415 CE, the bishop and the governor were in a fight. It started with a disagreement over the behavior of a militia of monks, and ended with an accusation of witchcraft leveled against one of the most powerful figures in the city: Hypatia, philosopher and advisor to the city’s leaders. Who was Hypatia and why was she deemed a threat? Soraya Field Fiorio investigates. Lesson by Soraya Field Fiorio, directed by Biljana Labovic. Animation by Elsa Esteban https://www.elsaesteban.com/ Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon: http://bit.ly/TEDEdPatreon Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram View full lesson: https://ed.ted.com/lessons/the-murder-of-ancient-alexandria-s-greatest-scholar-soraya-field-fiorio Thank you so much to our patrons for your support! Without you this video would not be possible! Ivan Todorović, Alex Schenkman, Brittiny Elman, Ryohky Araya, Paul Coupe, David Douglass, Ricardo Paredes, Bill Feaver, Eduardo Briceño, Arturo De Leon, Christophe Dessalles, Janie Jackson, Dr Luca Carpinelli, Heather Slater, Yuh Saito, Quentin Le Menez, Mattia Veltri, Fabian Amels, Sandra Tersluisen, PnDAA, Hugo Legorreta, Zhexi Shan, Gustavo Mendoza, Bárbara Nazaré, Josh Engel, Natalia Rico, Andrea Feliz, Eysteinn Guðnason, Bernardo Paulo, Victor E Karhel, Sydney Evans, Latora Slydell, Oyuntsengel Tseyen-Oidov, Noel Situ, Elliot Poulin, emily lam, Juan , Jordan Tang, Kent Logan, Alexandra Panzer, Laura Cameron Keith, Jen, Ellen Spertus, Cailin Ramsey, Markus Goldhacker, Leora Allen, Andras Radnothy, Chris, Arpita Singh and Vijayalakshmi. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 6 min

    From pacifist to spy: WWII’s surprising secret agent - Shrabani Basu

    Learn about the life of World War II spy Noor Inayat Khan and how she worked with the French Resistance to build the network that defeated the Nazis. Uploaded 06-08-19 -- In May 1940, with the German army ready to occupy Paris, Noor Inayat Khan was faced with a difficult choice: stand on the sidelines or join the Allied forces fighting the Nazis. After witnessing the devastation across Europe, she travelled to England to learn the art of espionage. Shrabani Basu details how a pacifist turned spy helped build the resistance that toppled a fascist regime. Lesson by Shrabani Basu, directed by Franz Palomares. Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon: http://bit.ly/TEDEdPatreon Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram View full lesson: https://ed.ted.com/lessons/from-pacifist-to-spy-wwii-s-surprising-secret-agent-shrabani-basu Thank you so much to our patrons for your support! Without you this video would not be possible! Nicolle Fieldsend-Roxborough, John Saveland, Jason Garcia, Robson Martinho, Martin Lau, Senjo Limbu, Joe Huang, SungGyeong Bae, Christian Kurch, Begum Tutuncu, David Matthew Ezroj, Sweetmilkcoco, Raphaël LAURENT, Joe Meyers, Farah Abdelwahab, Brian Richards, Divina Grace Dar Santos, Jessie McGuire, Abdullah Altuwaijri, Sarah Burns, Clement, Hadi Salahshour, FAWWAZ GHUWAIDI, Dino Biancolini, Reagen O'Connor, Nicu Boanda, Cindy O., Karla Brilman, Jørgen Østerpart, Sergi Páez, rakesh Katragadda, Carolyn Corwin, Charlene You, Boris Langvand, Exal Enrique Cisneros Tuch, Carsten Tobehn, Kin Lon Ma, Katie Dean, Ezgi Yersu, Eunsun Kim, Katrina Harding, Gerald Onyango, alessandra tasso, Astia Rizki Safitri, Côme Vincent, Antony Lee, Melissa Sorrells, Rakshit Kothari, Doreen Reynolds-Consolati and Simon Holst Ravn. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 12 min

    How to step up in the face of disaster - Caitria + Morgan O'Neill

    After a natural disaster strikes, there's only a tiny window of opportunity to rally effective recovery efforts before the world turns their attention elsewhere. Who should be in charge? When a freak tornado hit their hometown, sisters Caitria and Morgan O'Neill -- just 20 and 24 at the time -- took the reins and are now teaching others how to do the same. (Filmed at TEDxBoston.) Uploaded 29-08-13 Talk by Caitria and Morgan O'Neill. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 23 min

    The world needs diverse kinds of minds - Temple Grandin

    View full lesson: http://ed.ted.com/admin/lessons Temple Grandin, diagnosed with autism as a child, talks about how her mind works -- sharing her ability to "think in pictures," which helps her solve problems that neurotypical brains might miss. She makes the case that the world needs people on the autism spectrum: visual thinkers, pattern thinkers, verbal thinkers, and all kinds of smart geeky kids. Talk by Temple Grandin. Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 6 min

    Corruption, wealth, and beauty: The history of the Venetian gondola - Laura Morelli

    View full lesson: http://ed.ted.com/lessons/corruption-wealth-and-beauty-the-history-of-the-venetian-gondola-laura-morelli Uploaded 04-09-14 It’s hard to imagine Venice without the curious, banana-shaped gondolas that glide down the canals. How did these boats come to be the trademark transportation of Venice? Laura Morelli details the history of the gondola, explaining why these boats were needed, the painstaking process by which they were made and why they have slowly begun to fade from the once-crowded canals. Lesson by Laura Morelli, animation by Andrew Foerster. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 16 min

    A teacher growing green in the South Bronx - Stephen Ritz

    A whirlwind of energy and ideas, Stephen Ritz is a teacher in New York's tough South Bronx, where he and his kids grow lush gardens for food, greenery -- and jobs. Just try to keep up with this New York treasure as he spins through the many, many ways there are to grow hope in a neighborhood many have written off, or in your own. (Filmed at TEDxManhattan.) Uploaded 29-08-13 Talk by Stephen Ritz. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 7 min

    The spear-wielding stork who revolutionized science - Lucy Cooke

    Explore ridiculous ancient theories of bird migration and discover how scientists finally solved one of the field's oldest mysteries. Uploaded 17-12-20 -- In 1822, Count von Bothmer shot down a stork in Germany. However, the bird had already been impaled by a yard-long wooden spear. The stork had been speared in Africa and then flew over 2,500 km. This astonishing flight proved to be an essential clue in a mystery that had plagued scientists for centuries: the seasonal disappearance of birds. Lucy Cooke digs into the discovery of bird migration. Lesson by Lucy Cooke, directed by Visorama. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/3-bizarre-and-delightful-ancient-theories-about-bird-migration-lucy-cooke Dig deeper with additional resources: https://ed.ted.com/lessons/3-bizarre-and-delightful-ancient-theories-about-bird-migration-lucy-cooke#digdeeper Animator's website: http://www.visorama.tv/ ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Janice ESL, Vasundhar, Dessislava Vassileva, Denka Wee, Daru Bhargav, Brett Kaufman, Amy, Michael Clement, Christopher Lye, Ghaith Tarawneh, Nathan Milford, Tomas Beckett, Alice Ice, Kurt Paolo Sevillano, Max Salas, Xavi Ramos, Khoa Nguyen Anh, Ron Kakar, Jennifer Heald, flóra lili donáti, Megulo Abebe, TAO7 HORUS, isolwi , Linh Tran, Vedasheersh, Michael Chang, Alexander Gruber, Irene Y., Kate Sem, VPpurplebelt, Ujjwal Dasu, Winnie Yeung, Giovanna Suleiman Dores, Moritz Heinz, Theunis Groenewald, Võ Thiên Kim, JasonD, Terran Gimpel, Dillon Jason Ramai, Gareth Thomas, Talia Sari, Allen, Kevin Fowler, Sarat Chandra Vegunta, Gautam, Mahina Bachiller, Bruce Vieira Lopes, Charmaine Hanson, Paul Aldred-Bann and Thawsitt. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 7 min

    What is kevlar, and why is it so resilient? - Max G. Levy

    Explore the chemistry behind what makes kevlar so strong, and how this essential synthetic fiber was invented. -- By 1975, Richard Davis had been shot at close range 192 times. But not only was he completely healthy, each of those bullets were part of a demonstration to sell his new product: the bulletproof vest. So, how does such a light, flexible piece of clothing stop a bullet? The secret was a synthetic fiber material invented a decade earlier. Max G. Levy explores the incredible strength of kevlar. Lesson by Max G. Levy, directed by Vitalii Nebelskyi, and action creative agency. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/how-do-bulletproof-vests-work-max-g-levy Dig deeper with additional resources: https://ed.ted.com/lessons/how-do-bulletproof-vests-work-max-g-levy/digdeeper Animator's website: https://www.and-action.net ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Michel-Ange Hortegat, Enes Kirimi, Amaury BISIAUX, ND, Samyogita Hardikar, Vanessa Graulich, Vandana Gunwani, Abdulmohsin Almadi, AJ Lyon, Geoffrey Bultitude, Mi Mi, Thomas Rothert, Brian Elieson, Oge O, Weronika Falkowska, Nevin Spoljaric, Sid Chanpuriya, Anoop Varghese, David Yastremski, Noah Webb, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Jesse Lira, Ezekiel Raui, Petr Vacek, Dennis, Olivia Fu, Kari Teffeau, Cindy Lai, Rajath Durgada Manjunath, Dan Nguyen, 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 and Kurt Paolo Sevillano. Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 7 min

    How the world's longest underwater tunnel was built - Alex Gendler

    Discover how the English Channel Tunnel was built and the engineering challenges of building a 200 kilometer long tunnel underwater. Uploaded 30-03-20 -- Flanked by two powerful nations, the English Channel has long been one of the world’s most important maritime passages. Yet for most of its history, crossing was a dangerous prospect. Engineers proposed numerous plans for spanning the gap, including a design for an underwater passage more than twice the length of any existing tunnel. Alex Gendler details the creation of the Channel Tunnel. Lesson by Alex Gendler, directed by Studio Kimchi. Animator's website: https://studiokimchi.com/ Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon: http://bit.ly/TEDEdPatreon Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram View full lesson: https://ed.ted.com/lessons/how-the-world-s-longest-underwater-tunnel-was-built-alex-gendler Thank you so much to our patrons for your support! Without you this video would not be possible! Clement, Hadi Salahshour, FAWWAZ GHUWAIDI, Dino Biancolini, Reagen O'Connor, Nicu Boanda, Cindy O., Karla Brilman, Jørgen Østerpart, Sergi Páez, rakesh Katragadda, Carolyn Corwin, Charlene You, Boris Langvand, Exal Enrique Cisneros Tuch, Carsten Tobehn, Kin Lon Ma, Katie Dean, Ezgi Yersu, Eunsun Kim, Katrina Harding, Gerald Onyango, alessandra tasso, Astia Rizki Safitri, Côme Vincent, Antony Lee, Melissa Sorrells, Rakshit Kothari, Doreen Reynolds-Consolati, Simon Holst Ravn, Manognya Chakrapani, Ayala Ron, Samantha Chow, Philippe Spoden, Phyllis Dubrow, Michelle Stevens-Stanford, Cas Jamieson, Ophelia Gibson Best, Amber Wood, Paul Schneider, Jun Cai, Tim Robinson, Henrique 'Sorín' Cassús, cnorahs, Lyn-z Schulte, Elaine Fitzpatrick, Karthik Cherala, Clarence E. Harper Jr., Milad Mostafavi and Аркадий Скайуокер. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 6 min

    The most perilous elements on the periodic table - Shannon Odell

    Learn more at https://brilliant.org/TedEd -- Within the periodic table loom many potential hazardous elements. Some elements are dangerous due to their toxicity. Others are dangerous because of how they respond, react, or even explode in the outside environment. And perhaps the most threatening elements are those that silently emit energy. So, which substances on the periodic table are the most dangerous? Shannon Odell investigates. Lesson by Shannon Odell, directed by Anton Bogaty. This video made possible in collaboration with Brilliant Learn more about how TED-Ed partnerships work: https://bit.ly/TEDEdPartners Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/the-most-dangerous-elements-on-the-periodic-table-shannon-odell Dig deeper with additional resources: https://ed.ted.com/lessons/the-most-dangerous-elements-on-the-periodic-table-shannon-odell/digdeeper Animator's website: https://antonbogaty.com ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Kack-Kyun Kim, Michael Braun-Boghos, zjweele13, Anna-Pitschna Kunz, Edla Paniguel, Thomas Mungavan, Jaron Blackburn, Venkat Venkatakrishnan, ReuniteKorea, Aaron Henson, Rohan Gupta, Begum Tutuncu, Brian Richards, Jørgen Østerpart, Tyron Jung, Carsten Tobehn, Katie Dean, Ezgi Yersu, Gerald Onyango, alessandra tasso, Doreen Reynolds-Consolati, Manognya Chakrapani, Ayala Ron, Eunsun Kim, Phyllis Dubrow, Ophelia Gibson Best, Paul Schneider, Joichiro Yamada, Henrique Cassús, Karthik Cherala, Clarence E. Harper Jr., Vignan Velivela, Ana Maria, Exal Enrique Cisneros Tuch, Tejas Dc, Khalifa Alhulail, Martin Stephen, Jose Henrique Leopoldo e Silva, Mandeep Singh, Abhijit Kiran Valluri, Morgan Williams, Devin Harris, Pavel Zalevskiy, Karen Goepen-Wee, Filip Dabrowski, Barbara Smalley, Megan Douglas, Tim Leistikow, Ka-Hei Law and Hiroshi Uchiyama. Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 7 min

    What is hysteria, and why were so many women afflicted with it? - Mark S. Micale

    Download a free audiobook version of “City of Girls” and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- Do you ever feel tired? Overwhelmed? Depressed? Do you have headaches, dizziness, cramps, difficulty breathing? From 300 BCE to the 1900s, if you answered yes to any of these questions and you had a uterus, a doctor would likely diagnose you with hysteria. So, where did this medical diagnosis come from? And why did it persist for so long? Mark S. Micale traces the history of the catch-all term. Lesson by Mark S. Micale, directed by Laura Jayne Hodkin. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/what-is-hysteria-and-why-were-so-many-women-diagnosed-with-it-mark-s-micale Dig deeper with additional resources: https://ed.ted.com/lessons/what-is-hysteria-and-why-were-so-many-women-diagnosed-with-it-mark-s-micale/digdeeper Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/1984-copy Animator's website: https://laurajaynehodkin.com Music: https://www.philbrookes.com ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! 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, Geoffrey Bultitude, Mi Mi, Thomas Rothert, Brian Elieson, Oge O, Weronika Falkowska, Nevin Spoljaric, Sid Chanpuriya, Anoop Varghese, David Yastremski, Noah Webb, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Jesse Lira, Ezekiel Raui, Petr Vacek and Dennis. Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 12 · 7 min

    How Curiosity Took Us to Mars - Bobak Ferdowsi

    View full lesson: http://ed.ted.com/lessons/how-curiosity-got-us-to-mars-bobak-ferdowsi In August 2012, the Curiosity rover landed on Mars. The landing itself was a huge achievement and required a lot of forethought and planning by a very smart team. In this TED Youth 2012 Talk, Bobak Ferdowsi, the mohawked member of that team, outlines various aspects of a Mars landing, including the Seven Minutes of Terror. Talk by Bobak Ferdowsi. Learn more about your ad choices. Visit megaphone.fm/adchoices

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