TED-Ed
TED-Ed creates award-winning animated shorts that explore a wide range of educational topics, from science and history to art and philosophy. Each video is designed to spark curiosity and is accompanied by supplemental learning materials on their website. The podcast version offers the same engaging content in audio format, perfect for learning on the go.
Episodes
The commercial case for sustainability - Ray Anderson
View full lesson: http://ed.ted.com/lessons/the-business-logic-of-sustainability-ray-andersonAt his carpet company, Ray Anderson has increased sales and doubled profits while turning the traditional "take / make / waste" industrial system on its head. In a gentle, understated way, he shares a powerful vision for sustainable commerce.Talk by Ray Anderson.
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Can you solve the monster duel riddle? - Alex Gendler
Practice more problem-solving at https://brilliant.org/TedEd/ Uploaded 08-12-20--You’ve come a long way to compete in the great Diskymon league and prove yourself a Diskymon master. Now that you’ve made it to the finals, you’re up against some tough competition. In round one, you’ll face a single opponent and get to choose your disk before she picks from the remaining two. Can you choose the one t
The history of tattoos - Addison Anderson
View full lesson: http://ed.ted.com/lessons/the-history-of-tattoos-addison-andersonUploaded 18-09-14If you have a tattoo, you’re part of a rich cultural history that dates back at least 8,000 years. Where did this practice of body modification come from, and how has its function changed over time? Addison Anderson tracks the history of getting inked. Lesson by Addison Anderson, animation by The Th
Where will you be able to live in 20 years? - Carol Farbotko and Ingrid Boas
Explore how coastal communities are impacted by climate change and how they’re adapting to rising sea levels and extreme weather.Uploaded 12-10-21--Humanity has always adapted to changing weather and moved to regions that best support cultural lifestyles and livelihoods. However, the rise in extreme weather is endangering coastal communities, and even for those with the resources to take action, t
The princess exiled from ancient Mesopotamia - Soraya Field Fiorio
Travel back in time to ancient Mesopotamia and meet Enheduanna, a high priestess and the world’s first author.Uploaded 23-03-20--4,300 years ago in ancient Sumer, the most powerful person in the city of Ur was banished to wander the vast desert. Her name was Enheduanna, and by the time of her exile, she had written forty-two hymns and three epic poems— and Sumer hadn’t heard the last of her. Who w
Why eyewitnesses get it wrong - Scott Fraser
Scott Fraser studies how humans remember crimes -- and bear witness to them. In this powerful talk, which focuses on a deadly shooting at sunset, he suggests that even close-up eyewitnesses to a crime can create "memories" they could not have seen. Why? Because the brain abhors a vacuum. Editor's note: In the original version of this talk, Scott Fraser misspoke about available footage of Two World
The history of marriage - Alex Gendler
View full lesson: http://ed.ted.com/lessons/the-history-of-marriage-alex-gendlerUploaded 13-02-14A white, puffy dress. Eternal love. A joint tax return. Marriage means something different to everyone and has changed over time and across cultures. Alex Gendler traces the history of getting hitched, providing insights on polygamy, same-sex unions and even marriage between the dead and the living.Les
Preparing for oil's conclusion - Richard Sears
View full lesson: http://ed.ted.com/lessons/planning-for-the-end-of-oil-richard-searsAs the world's attention focuses on the perils of oil exploration, we present Richard Sears' talk from early February 2010. Sears, an expert in developing new energy resources, talks about our inevitable and necessary move away from oil. Toward ... what?Talk by Richard Sears.
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One surgeon's fascination with head transplants - Max G. Levy
Follow a neurosurgeon's attempts to perform a head transplant, and dig into the ethical and biological questions the procedure raises.--In 1970, neurosurgeon Robert White and his team carted two monkeys into an operating room to conduct an ambitious experiment. The objective was to connect the head of Monkey A to the body of Monkey B, in what he considered a whole-body transplant, with the ultimat
How art shapes cultural transformation - Thelma Golden
View full lesson: http://ed.ted.com/lessons/how-art-gives-shape-to-cultural-change-thelma-goldenThelma Golden, curator at the Studio Museum in Harlem, talks through three recent shows that explore how art examines and redefines culture. The "post-black" artists she works with are using their art to provoke a new dialogue about race and culture -- and about the meaning of art itself.Talk by Thelma
Why do bugs cluster above water? - Luke M. Jacobus
Trace the life cycle of mayflies, and explore why these swarming insects are a sign of healthy aquatic ecosystems.--For most of the world’s 4,000 mayfly species, adulthood lasts roughly one day. And for some species, it’s only a matter of minutes. This isn’t because they’re all eaten up by predators. Rather, this abridged adulthood is a natural part of their life cycle. So, what role do these bugs
Can you solve the time travel riddle? - Dan Finkel
Practice more problem-solving at https://brilliant.org/TedEd/Solution to bonus riddle: https://brilliant.org/TedEdTimeTravel/Uploaded 04-12-18Your professor has accidentally stepped through a time portal in his physics lab. You’ve got just a minute to jump through before it closes and leaves him stranded in history. Your only way back is to grab enough colored nodules to create a new portal to ope
How one scientist took on the chemical industry - Mark Lytle
Discover the groundbreaking environmental work of Rachel Carson, whose book “Silent Spring” explores how human actions threaten the balance of nature. Uploaded 17-03-20--In 1958, after receiving a letter describing the deaths of songbirds due to the pesticide known as DDT, Rachel Carson began an investigation into the misuse of chemicals and their toll on nature. In 1962, she published her finding
Why is Alzheimer's disease so hard to cure? - Krishna Sudhir
Dig into how Alzheimer’s disease affects your brain and cognitive abilities, and what makes the disorder so hard to treat.--Around the world, millions of people have Alzheimer’s disease, a debilitating brain disorder that gradually destroys a person’s memory and other cognitive abilities. While doctors have studied Alzheimer’s for decades, conducting hundreds of clinical trials, there is still no
Ancient Rome’s most notorious doctor - Ramon Glazov
Learn about the Greek physician and philosopher Galen of Pergamon, whose experiments and discoveries changed medicine.Uploaded 18-07-19--In the 16th century, an anatomist named Andreas Vesalius made a shocking discovery: the most famous human anatomy texts in the world were wrong. While Vesalius knew he was right, announcing the errors would mean challenging Galen of Pergamon. Who was this towerin
Why I'm a weekday vegetarian - Graham Hill
View full lesson: http://ed.ted.com/lessons/why-i-m-a-weekday-vegetarian-graham-hillUploaded 22-02-13We all know the arguments that being vegetarian is better for the environment and for the animals -- but in a carnivorous culture, it can be hard to make the change. Graham Hill has a powerful, pragmatic suggestion: Be a weekday veg.Talk by Graham Hill. Learn more about your ad choices. Visit megap
Welcome to the genomic revolution - Richard Resnick
In this accessible talk from TEDxBoston, Richard Resnick shows how cheap and fast genome sequencing is about to turn health care (and insurance, and politics) upside down. (Filmed at TEDxBoston.)Uploaded 03-07-13Talk by Richard Resnick. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Zora Neale Hurston's "Their Eyes Were Watching God" - Tanya Boucicaut
Dig into Zora Neale Hurston’s classic novel, “Their Eyes Were Watching God,” which follows Janie Crawford in her search for love and agency.Uploaded 14-10-21--Baritone thunder. Snarling winds. Consuming downpours. Okeechobee, the hurricane of 1928, forced many to flee their ruined communities. But for Janie Crawford, it inspired an unexpected homecoming. So begins Zora Neale Hurston’s acclaimed no
Moral behavior in animals - Frans de Waal
Empathy, cooperation, fairness and reciprocity -- caring about the well-being of others seems like a very human trait. But Frans de Waal shares some surprising videos of behavioral tests, on primates and other mammals, that show how many of these moral traits all of us share. (Filmed at TEDxPeachtree.)Uploaded 03-07-13Talk by Frans de Waal. Learn more about your ad choices. Visit megaphone.fm/adch
How could so many people follow Hitler? - Joseph Lacey
Explore the philosophy of Hannah Arendt, and get to know her strategies to combat the threat of totalitarianism and oppression.--Philosopher Hannah Arendt was a German Jew who dedicated herself to understanding how the Nazi regime came to power, and more specifically, how it inspired so many atrocities. She believed the true conditions behind the unprecedented rise of totalitarianism weren’t speci
What is the Heisenberg Uncertainty Principle? - Chad Orzel
View full lesson: http://ed.ted.com/lessons/what-is-the-heisenberg-uncertainty-principle-chad-orzelUploaded 16-09-14The Heisenberg Uncertainty Principle states that you can never simultaneously know the exact position and the exact speed of an object. Why not? Because everything in the universe behaves like both a particle and a wave at the same time. Chad Orzel navigates this complex concept of q
How did ancient peoples craft ice cream? - Vivian Jiang
Trace the history of ice cream, from the first accounts of cold desserts in the 1st century to the cream-based treat we know today.--Ice cream has a unique role in our world’s history, culture, and cravings. The first accounts of cold desserts date back to the first century, in civilizations including ancient Rome, Mughal India, and Tang Dynasty China. Yet the cream-based delicacy we know today ma
The tribes we build - Seth Godin
View full lesson: http://ed.ted.com/lessons/the-tribes-we-lead-seth-godinSeth Godin argues the Internet has ended mass marketing and revived a human social unit from the distant past: tribes. Founded on shared ideas and values, tribes give ordinary people the power to lead and make big change. He urges us to do so.Talk by Seth Godin.
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Distant time and the hint of a multiverse - Sean Carroll
Cosmologist Sean Carroll attacks -- in an entertaining and thought-provoking tour through the nature of time and the universe -- a deceptively simple question: Why does time exist at all? The potential answers point to a surprising view of the nature of the universe, and our place in it. (Filmed at TEDxCaltech.)Uploaded 08-08-13Talk by Sean Carroll. Learn more about your ad choices. Visit megaphon
Why are scientists catapulting mushrooms into orbit? - Shannon Odell
Explore the unique characteristics that make fungi so resilient, and find out why they may be the key to future space travel.--Astronauts aboard the space station Mir made a frightening discovery: several species of Earth-derived fungi were found growing throughout the shuttle, blanketing air conditioners and corroding control panels, putting both the station’s integrity and their lives at risk. H
Image recognition that triggers augmented reality - Matt Mills
View full lesson: http://ed.ted.com/lessons/image-recognition-that-triggers-augmented-reality-matt-millsUploaded 29-06-13Matt Mills and Tamara Roukaerts demonstrate Aurasma, a new augmented reality tool that can seamlessly animate the world as seen through a smartphone. Going beyond previous augmented reality, their "auras" can do everything from making a painting talk to overlaying live news onto
These animals can sense everything - Jakob Christensen-Dalsgaard
Explore the extraordinary auditory adaptations in the animal kingdom, and find out which creature has the best hearing.--The world is always abuzz with sounds, many of which human ears simply can’t hear. However, other species have extraordinary adaptations that grant them access to realms of sonic extremes. And some of them don’t even have ears— at least, not like we typically imagine. So, which
Inside your computer - Bettina Bair
View full lesson: http://ed.ted.com/lessons/inside-your-computer-bettina-bairUploaded 01-07-13How does a computer work? The critical components of a computer are the peripherals (including the mouse), the input/output subsystem (which controls what and how much information comes in and out), and the central processing unit (the brains), as well as human-written programs and memory. Bettina Bair wa
How to amplify your happiness
Dig into the benefits of practicing gratitude in your everyday life, and discover how being thankful can impact your happiness.--Many people would say the connection between happiness and gratefulness is very simple: when you are happy, you are grateful. But think again. Is it really the happy people that are grateful? Quite a number of people have everything that it would take to be happy, and th
Are we running out of clean water? - Balsher Singh Sidhu
Find out how students can share their ideas as TED Talks here: http://bit.ly/2RCMFgMUploaded 06-12-18View full lesson: https://ed.ted.com/lessons/are-we-running-out-of-clean-water-balsher-singh-sidhuDespite water covering 71% of the planet’s surface, more than half the world’s population endures extreme water scarcity for at least one month a year. Current estimates predict that by 2040, up to 20
Freeing energy from the grid - Justin Hall-Tipping
What would happen if we could generate power from our windowpanes? In this moving talk, entrepreneur Justin Hall-Tipping shows the materials that could make that possible, and how questioning our notion of 'normal' can lead to extraordinary breakthroughs.Uploaded 09-08-13Talk by Justin Hall-Tipping. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Mosquitos, malaria and teaching - Bill Gates
View full lesson: http://ed.ted.com/lessons/mosquitos-malaria-and-education-bill-gatesBill Gates hopes to solve some of the world's biggest problems using a new kind of philanthropy. In a passionate and, yes, funny 18 minutes, he asks us to consider two big questions and how we might answer them.Talk by Bill Gates.
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Toward a science of simplicity - George Whitesides
View full lesson: http://ed.ted.com/lessons/toward-a-science-of-simplicity-george-whitesidesUploaded 22-02-13Simplicity: We know it when we see it -- but what is it, exactly? In this funny, philosophical talk, George Whitesides chisels out an answer.Talk by George Whitesides. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Conversational toy tiles that connect - David Merrill
View full lesson: http://ed.ted.com/lessons/toy-tiles-that-talk-to-each-other-david-merrillMIT grad student David Merrill demos Siftables -- cookie-sized, computerized tiles you can stack and shuffle in your hands. These future-toys can do math, play music, and talk to their friends, too. Is this the next thing in hands-on learning?Talk by David Merrill.
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Romance and revolution: The poetry of Pablo Neruda - Ilan Stavans
Get to know Pablo Neruda, one of the most celebrated poets of the 20th century and winner of the Nobel Prize in Literature.Uploaded 23-07-19--A romantic and a revolutionary, Pablo Neruda was one of the most celebrated poets of the 20th century, but also one of the most accessible and controversial. Originally written in Spanish, his poems often use straightforward language and everyday experience
Your brain on improv - Charles Limb
Musician and researcher Charles Limb wondered how the brain works during musical improvisation -- so he put jazz musicians and rappers in an fMRI to find out. What he and his team found has deep implications for our understanding of creativity of all kinds. (Filmed at TEDxMidAtlantic.)Uploaded 03-07-13Talk by Charles Limb. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Demand a fair trade cell phone - Bandi Mbubi
Your mobile phone, computer and game console have a bloody past — tied to tantalum mining, which funds the war in the Democratic Republic of the Congo. Drawing on his personal story, activist and refugee Bandi Mbubi gives a stirring call to action. (Filmed at TEDxExeter.) Uploaded 29-08-13Talk by Bandi Mbubi. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Scientists are mesmerized by this lake - Nicola Storelli and Daniele Zanzi
Explore the depths of Lake Cadagno, a meromictic lake that is considered a model for Earth before the Great Oxidation Event.--In the millions of years since oxygen began saturating Earth’s oceans and atmosphere, most organisms have evolved to rely on this gas. However, there are some places where oxygen-averse microorganisms like those from Earth’s earliest days have re-emerged. And one such place
Particles and waves: The central mystery of quantum mechanics - Chad Orzel
View full lesson: http://ed.ted.com/lessons/particles-and-waves-the-central-mystery-of-quantum-mechanics-chad-orzelUploaded 15-09-14One of the most amazing facts in physics is that everything in the universe, from light to electrons to atoms, behaves like both a particle and a wave at the same time. But how did physicists arrive at this mind-boggling conclusion? Chad Orzel recounts the string of s
Are droids taking our jobs? - Andrew McAfee
Robots and algorithms are getting good at jobs like building cars, writing articles, translating -- jobs that once required a human. So what will we humans do for work? Andrew McAfee walks through recent labor data to say: We ain't seen nothing yet. But then he steps back to look at big history, and comes up with a surprising and even thrilling view of what comes next. (Filmed at TEDxBoston.) Uplo
The downfall of the House of Cadmus - Iseult Gillespie
Get to know the Greek myth of Cadmus, who unknowingly killed Ares’ serpent and faced the wrath and retribution of the gods.--When Cadmus walked the Earth, just a few generations separated him from his divine ancestors. From atop Mount Olympus, they scrutinized and meddled with mortals like himself. Cadmus was a skilled warrior and heir to the Phoenician throne, but he wouldn’t stay in the gods’ fa
How to rehabilitate a rainforest - Willie Smits
By piecing together a complex ecological puzzle, biologist Willie Smits believes he has found a way to re-grow clearcut rainforest in Borneo, saving local orangutans -- and creating a thrilling blueprint for restoring fragile ecosystems. UPDATE: December 2012: The core content of this talk has been challenged on a number of grounds. For details, and for Willie Smits' response to these criticisms,
The genes you don't get from your parents (but can't live without) - Devin Shuman
Dig into the essential role that mitochondrial DNA played in the evolution of living things on Earth, and find out why it’s still evolving.Uploaded 05-10-21--Inside our cells, each of us has a second set of genes completely separate from our 23 pairs of chromosomes. And this isn’t just true for humans— it’s true of every animal, plant, and fungus on Earth. This second genome belongs to our mitocho
This thought experiment will help you understand quantum mechanics - Matteo Fadel
Can you win a game of quantum foosball— using a giant electron instead of a ball? Explore how to use quantum mechanics to your advantage. Uploaded 14-12-20--After a long day working on the particle accelerator, you and your friends head to the arcade to unwind. The lights go out for a second, and when they come back, there before you gleams a foosball table. Always game, you insert your coins. And
Why don’t we cover the desert with solar panels? - Dan Kwartler
Explore what would happen if we covered the Sahara Desert in solar panels, and the possibility of it solving our energy crisis. Uploaded 18-10-21--Stretching over roughly nine million square kilometers and with sands reaching temperatures of up to 80° Celsius, the Sahara Desert receives about 22 million terawatt hours of energy from the Sun every year. That’s well over 100 times more energy than h
How Benjamin Button Obtained His Face - Ed Ulbrich
View full lesson: http://ed.ted.com/lessons/how-benjamin-button-got-his-face-ed-ulbrichEd Ulbrich, the digital-effects guru from Digital Domain, explains the Oscar-winning technology that allowed his team to digitally create the older versions of Brad Pitt's face for "The Curious Case of Benjamin Button."Talk by Ed Ulbrich.
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The dangerous race for the South Pole - Elizabeth Leane
Check out our Patreon page: https://www.patreon.com/tededUploaded 10-12-18View full lesson: https://ed.ted.com/lessons/the-dangerous-and-daring-race-for-the-south-pole-elizabeth-leaneBy the early 1900’s, nearly every region of the globe had been visited and mapped, with only two key locations left: the North and South Poles. After two Americans staked claim to reaching the North Pole, a Norwegian
Why does whacking your funny bone feel so dreadful? - Cella Wright
Explore the complex anatomy of the elbow, and find out why hitting your funny bone causes such an odd and painful sensation.--It's something we've all experienced: the back of your elbow smacks against a hard surface and the impact sends a sensation so distinctly disquieting shooting down your arm that it takes several moments to regain composure. So, why does hitting this spot on your elbow— comm
A novel ecosystem for electric cars - Shai Agassi
View full lesson: http://ed.ted.com/lessons/a-new-ecosystem-for-electric-cars-shai-agassiForget about the hybrid auto -- Shai Agassi says it's electric cars or bust if we want to impact emissions. His company, Better Place, has a radical plan to take entire countries oil-free by 2020.Talk by Shai Agassi.
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What adults can learn from children - Adora Svitak
View full lesson: http://ed.ted.com/lessons/what-adults-can-learn-from-kids-adora-svitakChild prodigy Adora Svitak says the world needs "childish" thinking: bold ideas, wild creativity and especially optimism. Kids' big dreams deserve high expectations, she says, starting with grownups' willingness to learn from children as much as to teach.Talk by Adora Svitak.
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How one piece of legislation divided a nation - Ben Labaree, Jr.
View full lesson: http://ed.ted.com/lessons/the-legislation-that-birthed-the-republican-party-ben-labaree-jrUploaded 11-02-14You may think that things are heated in Washington today, but the Kansas-Nebraska Act of 1854 had members of Congress so angry they pulled out their weapons -- and formed the Republican Party. The issues? Slavery and states' rights, which led the divided nation straight into
Exploring cell membranes through dish detergent - Ethan Perlstein
View full lesson: http://ed.ted.com/lessons/insights-into-cell-membranes-via-dish-detergent-ethan-perlsteinThe cell membrane, like a good jacket, protects the cell from everything outside of it. How is it simultaneously sturdy, flexible, and capable of allowing the right things to pass through? Ethan Perlstein rediscovers the scientists and their research that have changed the way we study the me
Building the world's largest (and most controversial) power plant - Alex Gendler
Explore the creation of China’s Three Gorges Dam, and find out how the hydroelectric plant generates its power.Uploaded 10-12-20--In 2018, a single power plant produced more energy than the world’s largest coal-powered and gas-powered plants combined. China’s Three Gorges Dam relies on running water, and is capable of producing more energy than any other power plant on Earth. So what allows Three
Beatboxing 101 - BEAT NYC
View full lesson: http://ed.ted.com/lessons/beatboxing-101-beat-nycUploaded 02-07-13There's no need for instruments to make music; you can use the greatest instrument of all, your own body. Members of BEAT NYC teach the basics of beatboxing (think trumpets, bass drums, and everything in between), all while driving around New York City picking up a few friends.Lesson by BEAT NYC, produced by TED-Ed
How does an air conditioner truly work? - Anna Rothschild
Dig into the science of how heat pumps both heat and cool a home, and find out the benefits and drawbacks of this technology.--Typically, with any piece of technology, you pump one unit of energy in and you get about one out. That’s just the first law of thermodynamics: energy has to be conserved. But there’s a piece of technology called a heat pump, where for every bit of energy you put in, you g
Why are blue whales so extraordinarily large? - Asha de Vos
View full lesson: http://ed.ted.com/lessons/why-are-blue-whales-so-enormous-asha-de-vosBlue whales are the largest animals on the planet, but what helps them grow to the length of a basketball court? Asha de Vos explains why the size of krill make them the ideal food for the blue whale -- it's as if the blue whale was made to eat krill (and krill was made to be eaten by the blue whale).Lesson by A
The chemistry of cold packs - John Pollard
View full lesson: http://ed.ted.com/lessons/how-do-cold-packs-get-cold-so-fast-john-pollardUploaded 11-09-14If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding light on the concepts of energetics and entropy along the
Could a Saturn moon contain life? - Carolyn Porco
View full lesson: http://ed.ted.com/lessons/could-a-saturn-moon-harbor-life-carolyn-porcoCarolyn Porco shares exciting new findings from the Cassini spacecraft's recent sweep of one of Saturn's moons, Enceladus. Samples gathered from the moon's icy geysers hint that an ocean under its surface could harbor life.Talk by Carolyn Porco.
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What Rumi teaches us about love - Stephanie Honchell Smith
Explore the life and works of Rumi, who became one of the world’s most celebrated poets and mystical philosophers.--According to legend, the renowned scholar Jalaluddin Muhammad Rumi was giving a lecture when a disheveled man approached and asked him the meaning of his academic books. Rumi didn’t know it yet, but this question and this man would change his life. So, who was this mysterious figure,
Gridiron physics: Magnitudes and directions - Michelle Buchanan
View full lesson: http://ed.ted.com/lessons/football-physics-scalars-and-vectors-michelle-buchananAn unbelievable play on an American Football field is the perfect backdrop for understanding crucial physics concepts. Michelle Buchanan goes play-by-play on the vectors, the scalars, and the glory of a downright scientific touchdown.Lesson by Michelle Buchanan, animation by TED-Ed.
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Eli the eel: A mysterious migration - James Prosek
View full lesson: http://ed.ted.com/lessons/eli-the-eel-a-mysterious-migration-james-prosekUploaded 10-02-14They're slippery. They're slithery. And while they totally look like underwater snakes, eels are, in fact, unique fish that can breathe through their skin and even survive out of water. James Prosek tracks the life journey of Eli the Anguilla eel as she (yes, she) travels her mysterious "bac
Does racism impact your vote? - Nate Silver
View full lesson: http://ed.ted.com/lessons/does-racism-affect-how-you-vote-nate-silverNate Silver has data that answers big questions about race in politics. For instance, in the 2008 presidential race, did Obama's skin color actually keep him from getting votes in some parts of the country? Stats and myths collide in this fascinating talk that ends with a remarkable insight.Talk by Nate Silver.
Why did people don powdered wigs? - Stephanie Honchell Smith
Trace the rise and fall of the powdered wig fashion craze, from King Louis XIII to the French Revolution in the 18th century.--Wigs date at least as far back as ancient Egypt, where well-regarded hairdressers crafted them into intricate styles. And under certain ancient Roman dynasties, women’s wigs became particularly ornate. Yet it wasn’t until Louis XIII unveiled a magnificent mane in the 17th
Can you solve the rogue submarine riddle? - Alex Rosenthal
Practice more problem-solving at https://brilliant.org/TedEdUploaded 23-09-21--Smuggling yourself aboard the rogue submarine was the easy part. Hacking into the nuclear missile launch override — a little harder. And you’ve got a problem: you don’t have the override code. You know you need the same numbers that were used to authorize the launch, but one wrong answer will lock you out. Can you figur
What the oil industry hides from the public - Stephanie Honchell Smith
Uncover the oil industry’s decades-long campaign to discredit climate change science regarding the danger of fossil fuels.--Throughout the 1980s, oil industry reps discussed the dangers of burning fossil fuels, acknowledging the risk their product posed to the future of humanity. However, instead of warning the public or pivoting towards renewable energy sources, they doubled down on oil — and lau
Inside the killer whale matriarchy - Darren Croft
Check out our Patreon page: https://www.patreon.com/tededUploaded 11-12-18View full lesson: https://ed.ted.com/lessons/the-amazing-grandmothers-of-the-killer-whale-pod-darren-croftPods of killer whales inhabit the waters of every major ocean on Earth. Each family is able to survive thanks mainly to one member, its most knowledgeable hunter: the grandmother. These matriarchs can live 80 years or mo
What happened to the lost Kingdom of Kush? - Geoff Emberling
Trace the rise and fall of the Kingdom of Kush, an overlooked ancient African civilization which fought off both the Egyptians and Romans. Uploaded 07-10-21--Along the Nile River, in what is now northern Sudan, lay the ancient civilization of Kush. Though they were once conquered by a powerful neighbor, the kings and queens of Kush would go on to successfully challenge two of the most dominant emp
Revealing photography: From camera obscura to camera phone - Eva Timothy
VIew full lesson: http://ed.ted.com/lessons/illuminating-photography-eva-timothyThe origins of the cameras we use today were invented in the 19th century. Or were they? A millenia before, Arab scientist Alhazen was using the camera obscura to duplicate images, with Leonardo da Vinci following suit 500 years later and major innovations beginning in the 19th century. Eva Timothy tracks the trajector
Learning from a barefoot movement - Bunker Roy
In Rajasthan, India, an extraordinary school teaches rural women and men -- many of them illiterate -- to become solar engineers, artisans, dentists and doctors in their own villages. It's called the Barefoot College, and its founder, Bunker Roy, explains how it works. Uploaded 09-08-13Talk by Bunker Roy. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Has there ever been a moral dictator? - Stephanie Honchell Smith
Examine the myth of the benevolent dictator, which is a leader who holds absolute power yet only uses it for the common good.--Under certain conditions, the idea of a dictator can sound appealing, like when a democracy isn’t functioning as it should due to corruption or political polarization. People may believe the solution is a "benevolent dictator"— a leader who only uses their absolute power f
Amplified motorcycle design - Yves Behar
View full lesson: http://ed.ted.com/lessons/supercharged-motorcycle-design-yves-beharYves Behar and Forrest North unveil Mission One, a sleek, powerful electric motorcycle. They share slides from distant (yet similar) childhoods that show how collaboration kick-started their friendship -- and shared dreams.Talk by Yves Behar.
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A tale of mental illness -- from the inside - Elyn Saks
"Is it okay if I totally trash your office?" It's a question Elyn Saks once asked her doctor, and it wasn't a joke. A legal scholar, in 2007 Saks came forward with her own story of schizophrenia, controlled by drugs and therapy but ever-present. In this powerful talk, she asks us to see people with mental illness clearly, honestly and compassionately. Uploaded 28-06-13Talk by Elyn Saks. Learn more
What is schizophrenia? - Anees Bahji
Discover what we know— and don’t know— about the symptoms, causes, and treatments of schizophrenia. Uploaded 26-03-20--Schizophrenia was first identified more than a century ago, but we still don’t know its exact causes. It remains one of the most misunderstood and stigmatized illnesses today. So what do we actually know about its symptoms, causes, and treatments? Anees Bahji investigates.Lesson b
What transpires in your body during a miscarriage? - Nassim Assefi and Emily M. Godfrey
Explore what happens in the body during miscarriage, and learn about three common treatment options for pregnancy loss.--Globally, around 23 million pregnancies end in miscarriage each year. Despite how common it is, miscarriage can still feel isolating, and for some, emotionally traumatizing. And myths about miscarriage add to the stigma, leading many to blame themselves for the loss. So what hap
Making a TED-Ed Lesson: Bringing a pop-up book to life
View full lesson: http://ed.ted.com/lessons/making-a-ted-ed-lesson-bringing-a-pop-up-book-to-lifeView original lesson: http://ed.ted.com/lessons/the-pangaea-pop-up-michael-molinaUploaded 10-09-14In ‘The Pangaea Pop-up’ Lesson, animator Biljana Labovic decided the best way to illustrate moving, shifting tectonic plates was to use a physical object that could also move and shift. Here, Labovic expla
Why isn’t the Netherlands underwater? - Stefan Al
Dig into the incredible engineering of the Netherlands’ Delta Works— the most sophisticated flood prevention system in the world. Uploaded 24-03-20--In January 1953, a tidal surge shook the North Sea. The titanic waves flooded the Dutch coastline, killing almost 2,000 people. 54 years later, a similar storm threatened the region. But this time, they were ready. This was thanks to a massive, interl
Visualizing the globe's Twitter data - Jer Thorp
View full lesson: http://ed.ted.com/lessons/mapping-the-world-with-twitter-jer-thorpGood morning, Twitter! Millions of tweets are sent everyday, and from these tweets, we can gather a lot of information about people's lives: where they travel, when they wake up, and their opinions on pretty much everything. In this TEDYouth 2012 Talk, former New York Times data artist-in-residence Jer Thorp imagin
How turtle shells evolved... twice - Judy Cebra Thomas
Check out the fascinating science behind the evolution of the turtle shell, over 260 million years in the making. Uploaded 30-07-19--Modern turtle shells are almost as diverse as the turtles themselves. Sea turtles have flatter, lighter shells for gliding through the water. Land-dwelling tortoises have domed shells that can slip free of predators’ jaws. Leatherback turtles have shells without the
How close are we to fueling the world with nuclear fusion? - George Zaidan
Explore the possibility of nuclear fusion technology to create limitless, on-demand energy with almost no emissions. --Stars have cores hot and dense enough to force atomic nuclei together, forming larger, heavier nuclei in a process known as fusion. In this process, the mass of the end products is slightly less than the mass of the initial atoms. But that “lost” mass doesn’t disappear — it’s conv
The tale of the boy who deceived a tyrant - Paschal Kyiiripuo Kyoore
Get to know the Dagara tale of Yagangnaa, a boy who defied a tyrannical chief, and witness their ensuing battle of wits.--Shock seized the West African Dagara village as word travelled of a new decree. Completely disregarding time-honored naming rituals, the tyrannical chief declared that he alone would name the village’s children. But soon an unlikely challenger appeared: Yagangnaa, the boy who n
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