TED-Ed
TED-Ed’s commitment to creating lessons worth sharing is an extension of TED’s mission of spreading great ideas. Within TED-Ed’s growing library of TED-Ed animations, you will find carefully curated educational videos, many of which represent collaborations between talented educators and animators nominated through the TED-Ed website (ed.ted.com). Want to suggest an idea for a TED-Ed animation or get involved with TED-Ed? Visit our website at: http://ed.ted.com/get_involved. Also, consider donating to us on Patreon! By doing so, you directly support our mission and receive some pretty awesome rewards: https://www.patreon.com/teded For more information on using TED 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/

1566 videos
Can you solve the nuclear override riddle? - Alex Rosenthal Can you solve the nuclear override riddle? - Alex Rosenthal
9 hours ago En
Practice more problem-solving at https://brilliant.org/TedEd -- 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 figure out what numbers to enter to stop nuclear war? Alex Rosenthal shows how. Lesson by Alex Rosenthal, directed by Igor Coric, Artrake Studio. A very special thank you to Jon Schneider and Brian Chen, who wrote the original version of this puzzle for the 2021 MIT Mystery Hunt and were inestimably helpful in adapting it to this format. You can find that original puzzle — and many more like it — at: https://bit.ly/MITHunt Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------
The secrets of the world’s most famous symphony - Hanako Sawada The secrets of the world’s most famous symphony - Hanako Sawada
2 days ago En
Discover what makes Ludwig van Beethoven’s Symphony Number Five a musical masterpiece, and uncover the story behind its inception. -- Eight ferocious notes open one of the most explosive pieces of music ever composed. Ludwig van Beethoven’s Symphony Number Five premiered in 1808, and quickly won acclaim. Its central motif and raw emotionality have continued to resound through the ages. So what exactly makes Beethoven’s Fifth so captivating? Hanako Sawada uncovers the story behind this musical masterpiece. Lesson by Hanako Sawada, directed by Yael Reisfeld. 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 Insta
You could have a secret twin (but not the way you think) - Kayla Mandel Sheets You could have a secret twin (but not the way you think) - Kayla Mandel Sheets
1 week ago En
Download a free audiobook version of “The Vanishing Half“ and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- While searching for a kidney donor, Karen Keegan stumbled upon a mystery. After undergoing genetic testing, it turned out that some of her cells had a completely different set of genes from the others. And this second set of genes belonged to her twin sister— who had never been born. How did this happen? Kayla Mandel Sheets explores the condition known as chimerism. Lesson by Kayla Mandel Sheets, directed by Luísa M H Copetti, Hype CG. 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
Earth's mysterious red glow, explained - Zoe Pierrat Earth's mysterious red glow, explained - Zoe Pierrat
1 week ago En
Explore the phenomenon and uses of chlorophyll fluorescence, a small amount of light emitted by plants during photosynthesis. -- In 2009, a satellite circled Earth, scanning and sorting the wavelengths reflecting off the planet’s surface. Researchers noticed something baffling: an unexpected wavelength of unknown origin. They tried looking at Earth with only this wavelength, and saw the planet covered in a red hue of varying intensity. So, what was going on? Zoe Pierrat explores the science of chlorophyll fluorescence. Lesson by Zoe Pierrat, directed by Denis Chapon, The Animation Workshop. 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://bi
What makes a language... a language? - Martin Hilpert What makes a language... a language? - Martin Hilpert
2 weeks ago En
Dig into the distinction between a language and a dialect, and uncover the history of standardized languages. -- Outside of China, Mandarin and Cantonese are often referred to as Chinese dialects, despite being even more dissimilar than Spanish and Italian. On the other hand, speakers of Danish, Norwegian, and Swedish, which are three distinct languages, can usually communicate with each other in their native tongues. So, when is speech considered a dialect versus a language? Martin Hilpert investigates. Lesson by Martin Hilpert, directed by Luísa M H Copetti, Hype CG. 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
The rise and fall of the Lakota Empire - Pekka Hämäläinen The rise and fall of the Lakota Empire - Pekka Hämäläinen
2 weeks ago En
Trace the rise and fall of the Lakota Empire which, at their height, were the most dominant power in the American West. -- In 1776, a powerful empire was born in North America. The Lakotas had reached the Black Hills, the most sacred place and most coveted buffalo hunting grounds in the western plains. Located in what is now South Dakota, control of the Black Hills, or Paha Sapa, marked the tribe as the dominant power in the American West. Pekka Hämäläinen explores the rise and fall of the Lakota Empire. Lesson by Pekka Hämäläinen, directed by Mohammad Babakoohi & Yijia Cao. 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/TEDEdTwitte
What is MSG, and is it actually bad for you? - Sarah E. Tracy What is MSG, and is it actually bad for you? - Sarah E. Tracy
3 weeks ago En
Dig into the seasoning known as MSG, and find out how this flavoring was developed and if it’s actually bad for your health. -- In 1968, Dr. Robert Ho Man Kwok felt ill after dinner at a Chinese restaurant and wrote a letter to a medical journal connecting his symptoms to MSG. His letter would change the world’s relationship with MSG, inspiring international panic, biased science, and sensationalist journalism for the next 40 years. So what is this seasoning, and is it actually bad for you? Sarah E. Tracy investigates. Lesson by Sarah E. Tracy, directed by Alopra Studio. 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 Pe
The infamous overpopulation bet: Simon vs. Ehrlich - Soraya Field Fiorio The infamous overpopulation bet: Simon vs. Ehrlich - Soraya Field Fiorio
3 weeks ago En
Discover an infamous bet between two professors, which sought to predict whether the earth would run out of resources due to a growing human population. -- In 1980, Paul Ehrlich and Julian Simon bet $1,000 on a question with stakes that couldn’t be higher: would the earth run out of resources to sustain a growing human population? They bet $200 on the price of five metals. If the price of a metal decreased or held steady over the next decade, Simon won. If the price increased, Ehrlich won. So, what happened? Soraya Field Fiorio investigates. Lesson by Soraya Field Fiorio, directed by Avi Ofer. 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:/
Is this the most successful animal ever? - Nigel Hughes Is this the most successful animal ever? - Nigel Hughes
4 weeks ago En
Discover the creatures known as trilobites, one of Earth’s most successful early animals, and find out what led to their extinction. -- Prevailing for around 270 million years and encompassing more than 20,000 distinct species, trilobites are some of the most successful lifeforms in Earth’s history. When they sprung into existence, they were among the most diverse and sophisticated organisms on the planet and so had a unique perspective on the ancient world. Nigel Hughes details the rise and fall of these hardy creatures. Lesson by Nigel Hughes, directed by Zsuzsanna Kreif, The Animation Workshop. 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: ht
How we can detect pretty much anything - Hélène Morlon and Anna Papadopoulou How we can detect pretty much anything - Hélène Morlon and Anna Papadopoulou
1 month ago En
Explore how scientists use environmental DNA (eDNA) in a technique called DNA metabarcoding to find and track species. -- Scientists have been staking out a forest in Montana for an animal that’s notoriously tricky to find. Camera traps haven’t offered definitive evidence, and experts can’t identify its tracks with certainty. But within the past decades, researchers have developed methods that can detect even the most elusive species. So how does it work? Hélène Morlon & Anna Papadopoulou dig into DNA metabarcoding. Lesson by Hélène Morlon and Anna Papadopoulou, directed by Blok Magnaye. 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.l
Can you outsmart the slippery slope fallacy? - Elizabeth Cox Can you outsmart the slippery slope fallacy? - Elizabeth Cox
1 month ago En Ru
Dig into the slippery slope fallacy, which assumes that one step will lead to a series of events that lead to an extreme— often bad— scenario. -- It’s 1954. Vietnamese nationalists are on the verge of securing an independent Vietnam under communist leader Ho Chi Minh. U.S. President Eisenhower claims that by virtue of the "falling domino principle," communist control of Vietnam would lead to the global spread of authoritarian communist regimes. Can you spot the problem with this argument? Elizabeth Cox explores the slippery slope fallacy. Lesson by Elizabeth Cox, directed by TOGETHER. 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/
How the COVID-19 vaccines were created so quickly - Kaitlyn Sadtler and Elizabeth Wayne How the COVID-19 vaccines were created so quickly - Kaitlyn Sadtler and Elizabeth Wayne
1 month ago En
Discover how mRNA vaccines help your immune system fight viral infections and how this decades-old technology was used to create COVID-19 vaccines. -- In the 20th century, most vaccines took over a decade to research, test, and produce. But the vaccines for COVID-19 were cleared for emergency use in less than 11 months. The secret behind this speed is a medical technology that’s been developing for decades: the mRNA vaccine. So how do these revolutionary vaccines work? Kaitlyn Sadtler and Elizabeth Wayne dig into the science of mRNA technology. Lesson by Kaitlyn Sadtler and Elizabeth Wayne, directed by Igor Ćorić, Artrake Studio. 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/TED
The secret society of the Great Dismal Swamp - Dan Sayers The secret society of the Great Dismal Swamp - Dan Sayers
1 month ago En
Uncover the history of the hidden communities that inhabited the Great Dismal Swamp in North America. -- Straddling Virginia and North Carolina is an area that was once described as the “most repulsive of American possessions.” By 1728, it was known as the Great Dismal Swamp. But while many deemed it uninhabitable, recent findings suggest that a hidden society persisted in the Swamp until the mid-1800’s. So, who lived there? And what happened to them? Dan Sayers uncovers a lost civilization. Lesson by Dan Sayers, directed by Tomás Pichardo-Espaillat. 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:
Can you solve the giant spider riddle? - Dan Finkel Can you solve the giant spider riddle? - Dan Finkel
1 month ago En
Practice more problem-solving at https://brilliant.org/TedEd -- Once every century, the world’s greatest spiders gather to compete in a series of grueling games. The winner will become the next arachnomonarch, able to command all the world’s spiders to their will. That day is today, and for the first time, you’re casting your name into the ring. Can you attain the mantle of spider supremacy? Dan Finkel shows how. Lesson by Dan Finkel, directed by Igor Ćorić, Artrake Studio. 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 ---------------------------------------------- Ke
The method that can "prove" almost anything - James A. Smith The method that can "prove" almost anything - James A. Smith
1 month ago En
Explore the data analysis method known as p-hacking, where data is misrepresented as statistically significant. -- In 2011, a group of researchers conducted a study designed to find an impossible result. Their study involved real people, truthfully reported data, and commonplace statistical analyses. So how did they do it? The answer lies in a statistical method scientists often use to try to figure out whether their results mean something, or if they’re random noise. James A. Smith explores p-hacking. Lesson by James A. Smith, directed by Anton Bogaty. 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
What causes seizures, and how can we treat them? - Christopher E. Gaw What causes seizures, and how can we treat them? - Christopher E. Gaw
1 month ago En
Discover what we know — and don’t know — about the causes and treatment of seizures, and what to do if you encounter someone experiencing a seizure. -- Nearly 3,000 years ago, a Babylonian tablet described a curious illness called “miqtu” that caused symptoms ranging from facial twitching to full body convulsions. Today we know miqtu as seizures, and modern medicine has developed numerous treatments for those experiencing them. So what causes seizures, and is there any way to stop them from happening? Christopher E. Gaw investigates. Lesson by Christopher E. Gaw, directed by Bálint Gelley, CUB Animation Ltd. 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
Iceland's superpowered underground volcanoes - Jean-Baptiste P. Koehl Iceland's superpowered underground volcanoes - Jean-Baptiste P. Koehl
1 month ago En Ru
Explore how geothermal energy— the heat in the Earth’s crust— is being used to create renewable electricity and power. -- 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. 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
Venom spurs, duck bills and spiky penises: A year in the life a platypus - Gilad Bino Venom spurs, duck bills and spiky penises: A year in the life a platypus - Gilad Bino
1 month ago En
Trace a year in the life of a platypus, and explore how the animal’s unique adaptations ensure its survival. -- Waddling along the parched Australian earth, a female platypus is searching for fresh water. Over the past year, a severe drought turned rivers and streams to mere trickles. She barely survived and was unable to reproduce. Could the next year bring a change in luck? Gilad Bino traces a year in the life of a platypus, and explores the unique adaptations that ensure this ancient species' survival. Lesson by Gilad Bino, directed by Petya Zlateva, Compote Collective. 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
The rise and fall of the Kingdom of Man - Andrew McDonald The rise and fall of the Kingdom of Man - Andrew McDonald
2 months ago En Ru
Discover the medieval empire of the Isle of Man and the Hebrides, and how a dynasty of sea kings rose to power. -- On a small island in the Irish Sea, fortresses preside over the rugged shores. This unlikely location was the birthplace of a medieval empire that lasted 200 years. Rulers built coastal fortresses on cliffs, roved the seaways, and threw themselves into epic battles to consolidate control over an impressive maritime kingdom. Andrew McDonald uncovers this forgotten dynasty of sea kings. Lesson by Andrew McDonald, directed by WOW-HOW Studio. 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:
The paradox at the heart of mathematics: Gödel's Incompleteness Theorem - Marcus du Sautoy The paradox at the heart of mathematics: Gödel's Incompleteness Theorem - Marcus du Sautoy
2 months ago En
Explore Gödel’s Incompleteness Theorem, a discovery which changed what we know about mathematical proofs and statements. -- 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. 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 o
Why can’t governments print an unlimited amount of money? - Jonathan Smith Why can’t governments print an unlimited amount of money? - Jonathan Smith
2 months ago En
Explore the economic strategy of quantitative easing, where a central bank purchases bonds in order to boost the economy. -- In March 2020, the COVID-19 pandemic rocked economies worldwide. Millions of people lost their jobs, and many businesses struggled to survive or shut down. Governments responded with some of the largest economic relief packages in history— the US alone spent $2.2 trillion on a first round of relief. So where did all this money come from? Jonathan Smith explores the strategy of quantitative easing. Lesson by Jonathan Smith, directed by Serin İnan, Kozmonot Animation Studio. 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
The most notorious scientific feud in history - Lukas Rieppel The most notorious scientific feud in history - Lukas Rieppel
2 months ago En
Get to know one of the most infamous scientific rivalries in history, known as the Bone Wars, where two scientists competed to find dinosaur fossils. -- After the California Gold Rush of 1848, settlers streamed west to strike it rich. In addition to precious metals, they unearthed another treasure: dinosaur bones. Two wealthy scientists in particular— Othniel Charles Marsh and Edward Drinker Cope— competed to uncover these prehistoric monsters. Lukas Rieppel digs into one of the most notorious scientific feuds in history, known as the Bone Wars. Lesson by Lukas Rieppel, directed by Michael Kalopaidis, Zedem Media. 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
History's deadliest king - by Georges Nzongola-Ntalaja History's deadliest king - by Georges Nzongola-Ntalaja
2 months ago En
Dig into the Rubber Terror, the period in which King Leopold II’s horrific regime in the Congo resulted in the deaths of 10 million people. -- In 1904, Chief Lontulu laid 110 twigs in front of a foreign commission. Every twig represented a person in his village who died because of King Leopold’s brutal regime in the Congo. His testimony joined hundreds of others to help bring an end to one of the greatest atrocities in human history. Georges Nzongola-Ntalaja details the horrific abuses of Leopold’s occupation and looting of the Congo. Lesson by Georges Nzongola-Ntalaja, directed by Héloïse Dorsan Rachet. 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 Twit
Could we build a wooden skyscraper? - Stefan Al Could we build a wooden skyscraper? - Stefan Al
2 months ago En
Explore the viability of wooden skyscrapers, and see how cross-laminated timber (CLT) helps make these once impossible structures possible. -- Towering 85 meters above the Norwegian countryside, Mjøstårnet is the world’s tallest wooden building, made almost entirely from the trees of neighboring forests. But as recently as the end of the 20th century, engineers thought it was impossible to build a wooden building over 6 stories tall. So how do wooden structures like this compare to steel and concrete skyscrapers? Stefan Al investigates. Lesson by Stefan Al, directed by Franz Palomares. 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/
The dark history of the Chinese Exclusion Act - Robert Chang The dark history of the Chinese Exclusion Act - Robert Chang
2 months ago En
Dig into the Chinese Exclusion Act of 1882, which suspended Chinese immigration to the U.S. and blocked Chinese immigrants from citizenship. -- In 1882, the United States Congress passed the Chinese Exclusion Act, the first federal law that restricted immigration based explicitly on nationality. In practice, the Act banned entry to all ethnically Chinese immigrants besides diplomats, and prohibited existing immigrants from obtaining citizenship. Robert Chang details the lasting impact the Act had on immigrant rights and freedoms. Lesson by Robert Chang, directed by Mohammad Babakoohi & Yijia Cao. 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: htt
What you can do with an extra jaw - Darien Satterfield What you can do with an extra jaw - Darien Satterfield
2 months ago En
Discover the adaptation of the pharyngeal jaw, a secondary set of jaws that allow fish to capture and eat their prey at the same time. -- After stalking a cuttlefish, a moray eel finally pounces. As the eel snags the mollusk in its teeth, its prey struggles to escape. But before it can wiggle away, a second set of teeth lunge from the eel’s throat. This adaptation is called a pharyngeal jaw, and is one of the most common adaptations under the sea. Darien Satterfield shares how this incredible skeletal mechanism works. Lesson by Darien Satterfield, directed by Zack Williams. 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/TEDEdTwitte
How one person saved over 2,000 children from the Nazis - Iseult Gillespie How one person saved over 2,000 children from the Nazis - Iseult Gillespie
2 months ago En
Get to know the story of Irena Sendler, a social worker who saved over 2,000 Jewish children from the Warsaw Ghetto during WWII. -- In 1943, Irena Sendler and Janina Grabowska froze when they heard Gestapo pounding on the front door. Knowing she was minutes from arrest, Irena tossed Janina her most dangerous possession: a glass jar containing the names of over 2,000 Jewish children she’d smuggled to safety from the Warsaw Ghetto. Who was this courageous woman? Iseult Gillespie details the life and legacy of Irena Sendler. Lesson by Iseult Gillespie, directed by Chloé Gérard. 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/TEDEdTwitte
Can you cheat death by solving this riddle? - Shravan S K Can you cheat death by solving this riddle? - Shravan S K
3 months ago En
Practice more problem-solving at https://brilliant.org/TedEd -- You and your best friend Bill are the greatest bards in the kingdom— but maybe not the brightest. Your hit song has insulted the king and now you’re slated for execution. Luckily, Death is a connoisseur of most excellent music and has decided to give you a chance to escape your fate. Can you beat him at a life-sized game of Snakes and Ladders and live to sing another day? Shravan S K shows how. Lesson by Shravan S K, directed by Igor Coric, Artrake Studio. 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 ----
These salamanders snack on each other (but don't die) - Luis Zambrano These salamanders snack on each other (but don't die) - Luis Zambrano
3 months ago En Ru
Discover the extraordinary regenerative powers of the axolotl, a salamander native to Mexico and one of science’s most studied animals. -- Axolotls are one of science’s most studied animals. Why, you ask? These extraordinary salamanders are masters of regeneration: they can flawlessly regenerate body parts ranging from amputated limbs and crushed spines to parts of their eyes and brains. So, how do they do it? And what other secrets are they keeping? Luis Zambrano explores the baffling biology of the axolotl. Lesson by Luis Zambrano, directed by Lizete Upīte. 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 Ins
Why was India split into two countries? - Haimanti Roy Why was India split into two countries? - Haimanti Roy
3 months ago En Ru
Dig into the 1947 Partition of India, when Britain split the region into two states, India and Pakistan, and the mass migrations and violence that followed. -- In 1947, the British viceroy announced that after 200 years of British rule, India would gain independence and be partitioned into Hindu India and Muslim Pakistan. What followed was one of the largest and bloodiest forced migrations in history: an estimated 1 million people lost their lives. What caused this violent aftermath? Haimanti Roy details the lasting legacies of the Partition of India. Lesson by Haimanti Roy, directed by Jagriti Khirwar & Raghav Arumugam. 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/TEDEdFaceboo
What few people know about the program that "saved" America - Meg Jacobs What few people know about the program that "saved" America - Meg Jacobs
3 months ago En Ru
Explore the successes and failures of FDR’s New Deal, a set of legislation during the Great Depression which aimed to save the US economy. -- In 1932, one in four Americans was unemployed, marking the highest unemployment rate in the country’s history. The Democratic presidential candidate Franklin D. Roosevelt promised a New Deal— a comprehensive set of legislation to support struggling citizens and put the country back to work. Meg Jacobs digs into the policies of this bold campaign and how it didn’t fully live up to its promises. Lesson by Meg Jacobs, directed by Anton Bogaty. 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/TEDEd
A brief history of toilets - Francis de los Reyes A brief history of toilets - Francis de los Reyes
3 months ago En
Explore the history of the toilet and how waste management has evolved from from ancient Mesopotamia to modern day. -- On sunny days, citizens of ancient Rome could be found exchanging news and gossip while attending to more urgent business at the public latrines. Today, most cultures consider trips to the restroom to be a more private occasion. But even when going alone, our shared sewage infrastructure is one of the most pivotal inventions in human history. Francis de los Reyes shares the history of the toilet. Lesson by Francis de los Reyes, directed by Igor Coric, Artrake Studio. 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/TE
The sharks that hunt in forests - Luka Seamus Wright The sharks that hunt in forests - Luka Seamus Wright
3 months ago En Ru
Discover the unique adaptations of marine forests, the ecosystems that provide food and shelter for sharks and diverse coastal species. -- Forests don’t usually come to mind as a habitat for sharks. But marine forests provide a home for 35% of the world’s sharks. Mangrove forests in particular function as an essential bridge between land and sea and have evolved various adaptations that protect them and their resident sharks. Luka Seamus Wright explores these unique and vital ecosystems. Lesson by Luka Seamus Wright, directed by William Cifuentes, Lucy Animation Studio. 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 Pee
Can you trust your memory? - Sheila Marie Orfano Can you trust your memory? - Sheila Marie Orfano
3 months ago En
Explore the Rashomon effect, where individuals give significantly different but equally believable accounts of the same event. -- A samurai is found dead in a quiet bamboo grove. One by one, the crime’s only known witnesses recount their version of the events. But as they each tell their tale, it becomes clear that every testimony is plausible yet different. And each witness implicates themselves. What’s going on? Sheila Marie Orfano explores the phenomenon of warring perspectives known as the Rashomon effect. Lesson by Sheila Marie Orfano, directed by Jeremiah Dickey. 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 Pee
Ugly History: The U.S. Syphilis Experiment - Susan M. Reverby Ugly History: The U.S. Syphilis Experiment - Susan M. Reverby
3 months ago En Ru
Dig into the unethical Tuskegee Syphilis Study, which spanned 40 years and lied to its participants about receiving treatment for syphilis. -- Afflicting nearly 1 in 10 Americans, syphilis was ravaging the U.S. in the 1930s. Many doctors believed syphilis affected Black and white patients differently, and the Public Health Service launched an experiment to investigate, recruiting 600 Black men to take part. But the study was centered on a lie: the men wouldn’t actually receive treatment. Susan Reverby details the Tuskegee Syphilis Study. Lesson by Susan M. Reverby, directed by Ouros Animation. 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:/
A day in the life of an Ancient Greek oracle - Mark Robinson A day in the life of an Ancient Greek oracle - Mark Robinson
3 months ago En Ru
Follow Aristonike, an Oracle-in-training in Delphi, as she studies to become the Pythia and communicate Apollo’s will and prophecies. -- As the sun rises over Delphi in 500 BCE, Aristonike hurries to the temple of Apollo where a single oracle known as the Pythia communicates Apollo’s will. Reserved only for women, this is the most important job in the city— and one that Aristonike will soon have to take on if city council officials decide she meets their standards. Mark Robinson outlines a day in the life of an Oracle-in-training. Lesson by Mark Robinson, directed by WOW-HOW Studio. 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/TED
Why do we have hair in such random places? - Nina G. Jablonski Why do we have hair in such random places? - Nina G. Jablonski
3 months ago En Ru
Discover how humans lost their fur as they evolved from primates, and why we still have hair on our bodies. -- 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 G. Jablonski explores the evolution of human hair. Lesson by Nina G. Jablonski, directed by Igor Coric, Artrake Studio. 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
The epic of Gilgamesh, the king who tried to conquer death - Soraya Field Fiorio The epic of Gilgamesh, the king who tried to conquer death - Soraya Field Fiorio
3 months ago En Ru
Dive into the Epic of Gilgamesh, and follow the king of Uruk on a series of dangerous quests as he searches for immortality. -- In 1849, in the ancient city of Nineveh in Iraq, archaeologists sifted through dusty remains, hoping to find records to prove that Bible stories were true. What they found instead was a 4,000-year-old story inscribed on crumbling clay tablets— a story that was so riveting, the first person to translate it started stripping from excitement. Soraya Field Fiorio tells the epic tale of Gilgamesh. Lesson by Soraya Field Fiorio, 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/TEDEd
Can you solve the Trojan War riddle? - Dennis E. Shasha Can you solve the Trojan War riddle? - Dennis E. Shasha
3 months ago En Ru
Practice more problem-solving at https://brilliant.org/TedEd -- On Olympus, you’ve been waiting for an opportunity to bring the bloody Trojan War to its conclusion. The two sides have agreed to a brief truce, and when you consult the Fates, they advise: should the peace last for 10 days, all will end soon. But if the truce is broken, there will be 10 more devastating years of war. Can you help the Greeks and Trojans keep the peace? Dennis Shasha shows how. Lesson by Dennis E. Shasha, directed by Igor Coric, Artrake Studio. 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
Could you survive the real Twilight Zone? - Philip Renaud and Kenneth Kostel Could you survive the real Twilight Zone? - Philip Renaud and Kenneth Kostel
4 months ago En Ru
Find out how a hatchetfish survives its daily journey from the depths of the ocean’s Twilight Zone to the resource-rich surface. -- 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 you. Can you complete the quest? Philip Renaud and Kenneth Kostel share how to survive the ocean's Twilight Zone. Lesson by Philip Renaud and Kenneth Kostel, directed by Cris Wiegandt. Designed by Bárbara Fonseca Sound design by Claudia Ioana Vasiliu 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: htt
The woman who stared at the sun - Alex Gendler The woman who stared at the sun - Alex Gendler
4 months ago En Ru
Get to know the legacy of Hisako Koyama, whose drawings of the sun’s surface helped scientists reconstruct 400 years of sunspot activity. -- In 1944, amateur astronomer Hisako Koyama’s latest endeavor was sketching the sun’s shifting surface. She spent weeks angling her telescope towards the sun and tracking every change she saw with drawings. Little did she know, these drawings were the start of one of the most important records of solar activity in human history. Alex Gendler details the incredible legacy of Koyama's work. Lesson by Alex Gendler, directed by Martina Meštrović. 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/TEDEdTw
Run, sail, or hide? How to survive the destruction of Pompeii - Gary Devore Run, sail, or hide? How to survive the destruction of Pompeii - Gary Devore
4 months ago En Ru
Download a free audiobook version of “Into Thin Air“ and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- It’s a bustling day in Pompeii. After a quick visit to the market, Fabia spots her brothers, Lucius and Marcus, crossing the Forum. The siblings begin discussing Lucius’ wedding — but a deafening boom interrupts them. They watch Vesuvius spew smoke, ash, and rock — and realize they’ve been living in the shadow of a volcano. Gary Devore follows the siblings as they attempt to survive the disaster. Lesson by Gary Devore, directed by Totem Creative. 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 Pe
Can you be awake and asleep at the same time? - Masako Tamaki Can you be awake and asleep at the same time? - Masako Tamaki
4 months ago En Ru
Discover the phenomenon known as asymmetrical sleep, where parts of an animal's brain are asleep while other areas remain active. -- Many animals need sleep. But all of the threats and demands animals face don’t just go away when it’s time to doze. That’s why a range of birds, mammals, and even humans experience some degree of asymmetrical sleep, where parts of the brain are asleep and other areas are more active. So, how does it work? Masako Tamaki explores how animals' brains remain vigilant even at their most vulnerable. Lesson by Masako Tamaki, directed by Biljana Labović. Animated by Iva Ćirić, designed by Manja Ćirić. 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/TEDEdFace
What causes migraines? - Marianne Schwarz What causes migraines? - Marianne Schwarz
4 months ago En Ru
Find out what’s happening in the brain when you have a migraine and what we still don’t know about this complex disorder. -- A throbbing, pounding headache. Bright zigzagging lines across your field of vision. Sensitivity to light, lingering fatigue, disrupted sleep. While an incapacitating headache is one of the most common symptoms, a migraine can include any of these experiences. So what exactly is a migraine? And what causes it? Marianne Schwarz explores what we know— and don't know— about this complex disorder. Lesson by Marianne Schwarz, directed by Bálint Gelley, CUB Animation. 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/T
Should you donate your DNA to help cure diseases? - Greg Foot Should you donate your DNA to help cure diseases? - Greg Foot
4 months ago En Ru
Discover how scientists are using crowdsourced DNA to find the causes of untreatable diseases, and developing new drug treatments for them. -- When scientists don't know the cause of a medical condition, developing a drug treatment takes significant trial and error, and lots of money— which is why we only have drugs for a small proportion of diseases. Researchers are hoping to change this using crowdsourced DNA. So how does this work, and what do your genes have to do with it? Greg Foot digs into the science of therapeutic targets. Lesson by Greg Foot, directed by Pierangelo Pirak. Produced for TED-Ed by https://www.sciencemedia.studio and NIHR University College London Hospitals Biomedical Research Centre. 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 ne
What really happened during the Attica Prison Rebellion - Orisanmi Burton What really happened during the Attica Prison Rebellion - Orisanmi Burton
4 months ago En Ru
Dig into the Attica Prison Rebellion, where prisoners took control of the facility in response to inhumane living conditions, and the violent retaking that followed. -- On September 9th 1971, a spontaneous uprising began in a New York State prison. A group of prisoners overpowered guards, broke windows, started fires, and captured supplies, sparking the Attica Rebellion. Soon, over 1,200 prisoners had assembled with 42 hostages to demand better treatment and better living conditions. Orisanmi Burton details the revolt and deadly retaking of Attica prison. Lesson by Orisanmi Burton, directed by Tomás Pichardo-Espaillat. 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
What’s in the air you breathe? - Amy Hrdina and Jesse Kroll What’s in the air you breathe? - Amy Hrdina and Jesse Kroll
4 months ago En Ru
Together, nitrogen, oxygen and argon make up 99.93% of our air. So what’s the other .07%? Find out what makes up the air you breathe. -- Take a deep breath. In a single intake of air, your lungs swell with roughly 25 sextillion molecules, ranging from days-old compounds, to those formed billions of years in the past. In fact, many of the molecules you’re breathing were likely exhaled by members of ancient civilizations and innumerable humans since. But what exactly are we all breathing? Amy Hrdina and Jesse Kroll investigate. Lesson by Amy Hrdina and Jesse Kroll, directed by Sharon Colman. 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
How one design flaw almost toppled a skyscraper - Alex Gendler How one design flaw almost toppled a skyscraper - Alex Gendler
4 months ago En Ru
Dig into the unique engineering of New York City’s Citicorp Center tower, and the design flaw that threatened to topple it. -- In 1978, Diane Hartley was writing her undergraduate architecture thesis when she made a shocking discovery. After weeks of poring over the Citicorp Center’s building plans, she’d stumbled on an oversight that threatened to topple the 59-story tower into one of New York City’s most densely populated districts. Alex Gendler digs into the skyscraper’s potentially deadly mistake. Lesson by Alex Gendler, directed by Nicholas Paim, Alopra Studio. 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
Who decides what’s in the dictionary? - Ilan Stavans Who decides what’s in the dictionary? - Ilan Stavans
4 months ago En Ru
Explore the history of the Merriam-Webster Dictionary and find out how old words get redefined and how new words are added. -- While the concept of a dictionary dates back to ancient civilizations, the first English dictionary wasn’t published until 1604. In the centuries that followed, many more dictionaries were written by individual authors who chose what to include or exclude, with most quickly becoming outdated. One 19th century lexicon had a different fate. Ilan Stavans digs into the history of Webster's Dictionary. Lesson by Ilan Stavans, directed by Lisa LaBracio. 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
Meet the bluefin tuna, the toughest fish in the sea - Grantly Galland and Raiana McKinney Meet the bluefin tuna, the toughest fish in the sea - Grantly Galland and Raiana McKinney
4 months ago En Ru
Discover the unique adaptations that make the Atlantic bluefin tuna one of the most dominant predators in the ocean. -- What’s as big as a polar bear, swallows its prey whole, and swims at forty miles an hour? It’s not a shark or a killer whale... it’s the Atlantic bluefin tuna— the largest and longest-lived of the 15 tuna species. Its unique set of adaptations make it one of the most dominant predators in the ocean. Grantly Galland and Raiana McKinney detail how these fish go from tiny hatchling to ocean giant. Lesson by Grantly Galland and Raiana McKinney, directed by Anna Benner. 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/TED
Loading...