TED-Ed

What is killing the Tasmanian devil? A virulent cancer is infecting them by the thousands -- and unlike most cancers, it's contagious. Researcher Elizabeth Murchison tells us how she's fighting to save the Taz, and what she's learning about all cancers from this unusual strain. Contains disturbing images of facial cancer. Talk by Elizabeth Murchison. Learn more about your ad choices. Visit megapho...

English novelist Jane Austen’s beloved works, like “Pride and Prejudice,” explored the dependence of women on marriage in British high society.--Whether she’s describing bickering families, quiet declarations of love, or juicy gossip, Jane Austen’s writing often feels as though it was written just for you. Her dry wit and cheeky playfulness informs her heroines, whose conversational tone welcomes...

View full lesson: http://ed.ted.com/lessons/the-fight-for-the-right-to-vote-in-the-united-states-nicki-beaman-griffinIn the United States today, if you are over eighteen, a citizen, and the resident of a state, you can vote (with some exceptions). So, how have voting rights changed since the first election in 1789? Nicki Beaman Griffin outlines the history of the long fight for a more inclusive el...

How do we choose which news to consume? Get the scoop on how opinions and facts affect the news and how to tell them apart.--With the advent of the Internet and social media, news is distributed at an incredible rate by an unprecedented number of different media outlets. How do we choose which news to consume? Damon Brown gives the inside scoop on how the opinions and facts (and sometimes non-fact...

Some kids learn by listening; others learn by doing. Geoff Mulgan gives a short introduction to the Studio School, a new kind of school in the UK where small teams of kids learn by working on projects that are, as Mulgan puts it, "for real." Talk by Geoff Mulgan. Learn more about your ad choices. Visit megaphone.fm/adchoices

Follow Jason as he attempts to steal the Golden Fleece from King Aeetes and enlists the help of the king's daughter, Medea. (Part Two of the myth of Jason and the Argonauts)--In Colchis, the hide of a mystical flying ram hangs from the tallest oak, guarded by a dragon who never sleeps. The only way Jason can pry it from King Aeetes’ clutches and win back his promised throne is by facing three peri...

Download a free audiobook version of "The Art of War" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-edCheck out our full book recommendation: https://shop.ed.ted.com/products/the-art-of-war--From Shakespeare’s plays to modern TV dramas, the unscrupulous schemer for whom the ends always justify the means has become a familiar character type we love to hate. For centuries, we’v...

Despite multibillion-dollar investments in cybersecurity, one of its root problems has been largely ignored: who are the people who write malicious code? Underworld investigator Misha Glenny profiles several convicted coders from around the world and reaches a startling conclusion. Talk by Misha Glenny. Learn more about your ad choices. Visit megaphone.fm/adchoices

What’s the best way to handle a crisis in business? Dig into how different strategies can work when faced with an ethical dilemma.--You founded a company that manufactures meatless burgers that are sold in stores worldwide. But you’ve recently received awful news: three people in one city died after eating your burgers. A criminal has injected poison into your product! The deaths are headline news...

Modern medicine is in danger of losing a powerful, old-fashioned tool: human touch. Physician and writer Abraham Verghese describes our strange new world where patients are merely data points, and calls for a return to the traditional one-on-one physical exam. Talk by Abraham Verghese. Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: http://ed.ted.com/lessons/the-silk-road-history-s-first-world-wide-web-shannon-harris-casteloWith modern technology, a global exchange of goods and ideas can happen at the click of a button. But what about 2,000 years ago? Shannon Harris Castelo unfolds the history of the 5,000-mile Silk Road, a network of multiple routes that used the common language of commerce to connect the w...

The adventure continues! Episode 3: Ethic and Hedge must sabotage the furnace-bots to get to the first artifact. Can they find a way out? --This is episode 3 of our animated series “Think Like A Coder.” This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way thr...

Explore the eye-opening science of LASIK: corrective laser eye surgery that focuses on reshaping the cornea to fix blurry vision.--In 1948, Spanish ophthalmologist Jose Ignacio Barraquer Moner was fed up with glasses. He wanted a solution for blurry vision that fixed the eye itself, without relying on external aids. The surgery he eventually devised was called “keratomileusis,” and his technique f...

Trace the history of how wolves, one of humanity’s oldest rivals, evolved into the domesticated dogs we call “man’s best friend.”--Since their emergence over 200,000 years ago, modern humans have established communities all over the planet. But they didn’t do it alone. Whatever corner of the globe you find humans in today, you’re likely to find another species as well: dogs. So how did one of our...

Learn how to identify, develop, and share your best ideas with TED Masterclass: http://bit.ly/tedmasterclass -- The average 20-year-old knows between 27,000 and 52,000 different words. Spoken out loud, most of these words last less than a second. With every word, the brain has a quick decision to make: which of those thousands of options matches the signal? And about 98% of the time, the brain cho...

View full lesson: http://ed.ted.com/lessons/how-does-your-brain-respond-to-pain-karen-d-davisOuch! Everyone experiences pain -- but why do some people react to the same painful stimulus in different ways? And what exactly is pain, anyway? Karen D. Davis walks you through your brain on pain, illuminating why the "pain experience" differs from person to person. Lesson by Karen D. Davis, animation by...

Practice more problem-solving at https://brilliant.org/TedEd/ --You’re a biologist on a mission to keep the rare honeybee Apis Trifecta from going extinct. The last 60 bees of the species are in your terrarium. You’ve already constructed wire frames of the appropriate size and shape. Now you need to turn them into working beehives by filling every hex with wax. Can you help the bees create produci...

Check out Lucy Cooke's "The Truth About Animals": https://bit.ly/TruthAboutAnimals --From Ancient Greece to the 20th century, Aristotle, Freud, and numerous other scholars were all looking for the same thing: eel testicles. Freshwater eels could be found in rivers across Europe, but no one had ever seen them mate and no researcher could find eel eggs or identify their reproductive organs. So how d...

View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-robot-jessica-oreck-and-rachael-teelIn 1920, Czech writer Karel Čapek wrote a play about human-like machines, thereby inventing the term robot from the Central European word for forced labor. Jessica Oreck and Rachael Teel explain how the science fiction staple earned its name. Lesson by Jessica Oreck and Rachael Teel, animation b...

View full lesson: http://ed.ted.com/lessons/the-deadly-irony-of-gunpowder-eric-rosadoIn the mid-ninth century, Chinese chemists, hard at work on an immortality potion, instead invented gunpowder. They soon found that this highly inflammable powder was far from an elixir of life -- they put it to use in bombs against Mongol invaders, and the rest was history. Eric Rosado details how gunpowder has c...

Learn about the life and art of Mexican surrealist painter Frida Kahlo, who explored disability, relationships and Mexican culture in her work. --In 1925, Frida Kahlo was on her way home from school in Mexico City when the bus she was riding collided with a streetcar. She suffered near-fatal injuries and her disability became a major theme in her paintings. Over the course of her life, she would e...

Get to know the life of Mexican nun, poet and scholar, Sor Juana Inés de la Cruz, who was censored by the Church for her critical writings. --Juana Ramírez de Asbaje sat before a panel of prestigious theologians, jurists, and mathematicians. They had been invited to test Juana’s knowledge with the most difficult questions they could muster. But she successfully answered every challenge, from compl...

View full lesson: http://ed.ted.com/lessons/how-languages-evolve-alex-gendlerOver the course of human history, thousands of languages have developed from what was once a much smaller number. How did we end up with so many? And how do we keep track of them all? Alex Gendler explains how linguists group languages into language families, demonstrating how these linguistic trees give us crucial insigh...

Why, why, why does our education system look so similar to the way it did 50 years ago? Millions of students were failing then, as they are now -- and it's because we're clinging to a business model that clearly doesn't work. Education advocate Geoffrey Canada dares the system to look at the data, think about the customers and make systematic shifts in order to help greater numbers of kids excel....

Dig into the science and superstition behind the myth of vampires, and how it has persisted from ancient Mesopotamia to today.--The myth of the bloodsucking vampire has stalked humans from ancient Mesopotamia to 18th-century Eastern Europe, but it has differed in the terrifying details. So, how did we arrive at the popular image we know, love and fear today? And what truly makes a vampire...a vamp...