Search Results: "Rosario"
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05:23
Why is it so hard to cure cancer? - Kyuson Yun
664 views / 1 likes - addedDownload a free audiobook and support TED-Ed's nonprofit mission: http://adbl.co/2gauxND Check out Siddhartha Mukherjee's "The Emperor of All Maladies": https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/the-emperor-of-all-maladies-a
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05:08
Why incompetent people think they're amazing - David Dunning
629 views / 1 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-incompetent-people-think-they-re-amazing-david-dunning How good are you with money? What about reading people’s emotions? How healthy are you, compa
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05:55 Popular
Can 100% renewable energy power the world? - Federico Rosei and Renzo Rosei
1,418 views / 2 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/can-100-renewable-energy-power-the-world-federico-rosei-and-renzo-rosei Every year, the world uses 35 billion barrels of oil. This massive scale of foss
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08:24 Popular
THE LEGO BATMAN MOVIE Trailer 1 - 3 (2017)
1,715 views / 4 likes - addedOfficial The Lego Batman Movie Trailer - 2017 Animated DC Movie | Starring: Ralph Fiennes, Rosario Dawson, Michael Cera Subscribe for New Trailers: http://goo.gl/KKBrix Visit: http://www.fabianpohl.com A spin-off of The Lego Movie (2014) centering on the
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05:23 Popular
How does your immune system work? - Emma Bryce
1,215 views / 1 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-does-the-immune-system-work-emma-bryce The immune system is a vast network of cells, tissues, and organs that coordinate your body’s defenses agains
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04:30 Popular
The myth of Arachne - Iseult Gillespie
934 views / 5 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-arachne-and-athena-iseult-gillespie From sailors who were turned into pigs, nymphs that sprouted into trees, and a gaze that converted the b
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04:07 Popular
A simple way to tell insects apart - Anika Hazra
935 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/a-simple-way-to-tell-insects-apart-anika-hazra There are nearly a million known insect species in the world, but most have one of just five common types
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05:00
How do brain scans work? - John Borghi and Elizabeth Waters
687 views / 1 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-do-we-study-living-brains-john-borghi-and-elizabeth-waters As far as we know, there’s only one thing in our solar system sophisticated enough to stu
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04:49 Popular
What's the difference between hibernation and sleep? - Sheena Lee Faherty
941 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-s-the-difference-between-hibernation-and-sleep-sheena-faherty The Arctic Ground Squirrel hibernates by burrowing under the permafrost and slipping
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05:20 Popular
Can you solve the false positive riddle? - Alex Gendler
895 views / 1 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ Solution to the bonus riddle mentioned at the end: https://brilliant.org/tededprobabilitypairs/ Mining unobtainium is hard work – the rare mineral appears in only 1% of rocks in the mine. But y
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02:50
Can Wearable Tech Save Football?
603 views / 1 likes - addedFootball is a full-contact sport, but this new technology can help players block and tackle more safely. NOVA on Facebook: https://www.facebook.com/NOVAonline NOVA on Twitter: @novapbs NOVA on Instagram: @novapbs PRODUCTION CREDITS Digital Producer: Ana A
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04:45 Popular
Can you solve the penniless pilgrim riddle? - Daniel Finkel
1,025 views / 0 likes - addedIf you enjoy our riddles, we highly recommend reading "The Number Devil". Discounted e-book versions available here: https://amzn.to/2kO7S8P Check out our book rec page to learn more: http://bit.ly/2JqwgLE View full lesson: https://ed.ted.com/lessons/can-
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05:50
What causes hallucinations? - Elizabeth Cox
473 views / 0 likes - addedDownload a free audiobook version of "Hallucinations" and support TED-Ed's nonprofit mission: https://adbl.co/2Kpt43k Check out our full book recommendation: https://shop.ed.ted.com/products/hallucinations View full lesson: https://ed.ted.com/lessons/what
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04:26
What is the coldest thing in the world? - Lina Marieth Hoyos
636 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-is-the-coldest-thing-in-the-world-lina-marieth-hoyos The coldest materials in the world aren’t in Antarctica or at the top of Mount Everest. They’r
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05:20
How the Normans changed the history of Europe - Mark Robinson
597 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-the-normans-changed-the-history-of-europe-mark-robinson In the year 1066, 7,000 Norman infantry and knights sailed in warships across the English Ch
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05:43
Is there any truth to the King Arthur legends? - Alan Lupack
690 views / 1 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/is-there-any-truth-to-the-king-arthur-legends-alan-lupack King Arthur has risen again and again in our collective imagination, along with his retinue of
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05:15
The fascinating science behind phantom limbs - Joshua W. Pate
441 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-fascinating-science-of-phantom-limbs-joshua-w-pate The vast majority of people who’ve lost a limb can still feel it — not as a memory or vague shape
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04:51 Popular
Can you solve the stolen rubies riddle? - Dennis Shasha
716 views / 0 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ Solution to Bonus Riddle: https://brilliant.org/TedEdRuby/ Townspeople are demanding that a corrupt merchant’s collection of 30 rubies be confiscated to reimburse the victims of his schemes. Th
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05:19
The fascinating history of cemeteries - Keith Eggener
387 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-fascinating-history-of-cemeteries-keith-eggener Spindly trees, rusted gates, crumbling stone, a solitary mourner: these things come to mind when we
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05:17 Popular
The life cycle of a neutron star - David Lunney
764 views / 2 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-life-cycle-of-a-neutron-star-david-lunney About once every century, a massive star somewhere in our galaxy runs out of fuel. No longer able to produ
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04:56
Can animals be deceptive? - Eldridge Adams
414 views / 1 likes - addedSign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/can-animals-be-deceptive-eldridge-adams A male firefly emits a series of enticing flashes. He hopes a female will respond an
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04:52 Popular
How Thor got his hammer - Scott A. Mellor
724 views / 1 likes - addedSign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/how-thor-got-his-hammer-scott-a-mellor Loki the mischief-maker, writhes in Thor’s iron grip. The previous night, he’d snuck
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04:58
Why should you read Shakespeare’s “The Tempest”? - Iseult Gillespie
604 views / 0 likes - addedExplore William Shakespeare’s play “The Tempest”, a story of shipwreck, magic and a fight for power. -- Claps of thunder and flashes of lightning illuminate a swelling sea, as a ship buckles beneath the waves. It is no ordinary storm, but a violent and ve
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04:55
The historic women’s suffrage march on Washington - Michelle Mehrtens
421 views / 0 likes - addedExplore how the Women’s Suffrage Parade on Washington in 1913 helped women secure the right to vote in the United States through the 19th amendment. -- On March 3, 1913, after months of strategic planning and controversy, thousands of women gathered in Wa
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05:02
How to spot a pyramid scheme - Stacie Bosley
555 views / 0 likes - addedLearn the techniques and tricks that pyramid schemes use to recruit new members and how to avoid being fooled yourself. -- In 2004, a nutrition company offered a life-changing opportunity to earn a full-time income for part-time work. There were only two
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05:23
You are more transparent than you think - Sajan Saini
281 views / 0 likes - addedDiscover how scientists are using light and integrated photonics technology to create medical devices that can diagnose illness.--Its an increasingly common sight in hospitals around the world: a nurse measures our height, weight, blood pressure, and atta
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04:34 Popular
The secret language of trees - Camille Defrenne and Suzanne Simard
766 views / 0 likes - addedLearn how trees are able to communicate with each other through a vast root system and symbiotic fungi, called mycorrhizae.--Most of the forest lives in the shadow of the giants that make up the highest canopy. These are the oldest trees, with hundreds of
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04:25
Can you solve the multiverse rescue mission riddle? - Dan Finkel
524 views / 0 likes - addedA bug in the superconductor system has trapped your team in 11 separate dimensions. Can you get them back home safely? --It was a normal Tuesday at the superconductor, until a bug in the system caused your team to be trapped in 11 separate dimensions. For
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04:31
A day in the life of an ancient Celtic Druid - Philip Freeman
393 views / 0 likes - addedJoin the Celtic druid Camma in her village as she conducts religious rites, serves as a healer, and mediates conflict between tribes.--As the sun rises in 55 BCE, Camma lays two pigeons on the altar at the center of her village. She wrings the birds necks
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06:10 Popular
The Resistance | Think Like A Coder, Ep 2
986 views / 0 likes - addedThe adventure continues! Episode 2: Ethic and Hedge search for the leader of the Resistance. Can they solve the puzzles blocking their way? --This is episode 2 of our animated series Think Like A Coder. This 10-episode narrative follows a girl, Ethic, and
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04:36
Why do humans have a third eyelid? - Dorsa Amir
357 views / 0 likes - addedDiscover how evolution and natural selection influence why the human body has vestigial organs body parts that no longer serve their original purpose. --You know that little pink thing nestled in the corner of your eye? Its actually the remnant of a third
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06:00
The Train Heist | Think Like A Coder, Ep 4
364 views / 0 likes - addedThe adventure continues! Episode 4: The trio plot how they can steal the first artifact the Node of Power. Can they take it without being discovered? --This is episode 4 of our animated series Think Like A Coder. This 10-episode narrative follows a girl,
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06:42
The Artists | Think Like A Coder, Ep 5
351 views / 0 likes - addedThe adventure continues! Episode 5: Ethic and Hedge arrive in the 198forest in search of the second artifact. Can they sneak past the guards to get to the tower? --This is episode 5 of our animated series Think Like A Coder. This 10-episode narrative foll
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05:16
One of the most epic engineering feats in history - Alex Gendler
483 views / 0 likes - addedDig into the history of the construction of the iconic Brooklyn Bridge and how John Roebling designed a hybrid suspension system to build it. --In the mid-19th century, suspension bridges were collapsing all across Europe. Their industrial cables frayed a
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05:17
The art forger who tricked the Nazis - Noah Charney
378 views / 0 likes - addedDiscover how the notorious art forger Han van Meegeren tricked the world and the Nazis with his counterfeit Vermeer paintings.--It was one of the strangest trials in Dutch history. The defendant in a 1947 case was an art forger who had counterfeited milli
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05:03
This sea creature breathes through its butt - Cella Wright
337 views / 1 likes - addedExplore the wonderfully bizarre life of the sea cucumber, and discover the essential role they play in keeping ocean ecosystems healthy.--Is it a fuzzy sock? An overripe banana? A moldy tube of toothpaste? No! In fact, its a humble sea cucumber: a brainle
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05:53
When is a pandemic over?
316 views / 0 likes - addedExplore the three strategies governments and communities can use to contain and end a pandemic, and find out which method is best.--Consider the following scenario: a highly infectious, sometimes deadly respiratory virus infects humans for the first time.
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10:01
The Factory | Think Like A Coder, Ep 9
326 views / 0 likes - addedThe adventure continues! Episode 9: Ethic, Hedge, and Lemma have made it to the last artifact: The Node of Memory. Can they retrieve it before the bots arrive?--This is episode 9 of our animated series Think Like A Coder. This 10-episode narrative follows
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04:47
The myth of Jason, Medea, and the Golden Fleece - Iseult Gillespie
468 views / 1 likes - addedFollow Jason as he attempts to steal the Golden Fleece from King Aeetes and enlists the help of the king's daughter, Medea. (Part Two of the myth of Jason and the Argonauts)--In Colchis, the hide of a mystical flying ram hangs from the tallest oak, guarde
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05:39 Popular
Whats that ringing in your ears? - Marc Fagelson
706 views / 0 likes - addedTravel into the auditory system to explore the constant ringing sensation of tinnitus, why it happens and how to treat it. --Tinnitus has been bothering humanity since Ancient Babylon, plaguing everyone from Leonardo da Vinci to Charles Darwin. Today, rou
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05:41
A brief history of plastic
376 views / 0 likes - addedTrace the history of the invention of plastic, and how the material ushered in what became known as the plastics century.--For centuries, billiard balls were made of ivory from elephant tusks. But when excessive hunting caused elephant populations to decl
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05:13 Popular
Why we need national parks - Elyse Cox
808 views / 0 likes - addedExplore the creation of national parks and the importance of finding a balance between public use and ecological preservation.--In 1903, US President Theodore Roosevelt took a camping trip in Californias Yosemite Valley with conservationist John Muir. Roo
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04:47
Do larger animals take longer to pee? - David L. Hu
365 views / 0 likes - addedDive into the physics of the Other Golden Rule and explore the systems and methods animals use to excrete waste. --A cats bladder can only store a golf balls worth of urine. For humans, its a coffee mug and for elephants, a kitchen trash can. An elephants
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04:59
A quantum thought experiment - Matteo Fadel
254 views / 0 likes - addedCan you win a game of quantum foosball using a giant electron instead of a ball? Explore how to use quantum mechanics to your advantage. --After a long day working on the particle accelerator, you and your friends head to the arcade to unwind. The lights
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05:07
Why should you read Toni Morrisons Beloved? - Yen Pham
311 views / 0 likes - addedDig into Toni Morrisons novel, "Beloved," which tells the story of a family of former slaves whose home is haunted by an abusive spirit.--Two tiny handprints stamped into a cake. A mirror that shatters without warning. A trail of cracker crumbs strewn alo
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05:50
Why bats don't get sick - Arinjay Banerjee
392 views / 0 likes - addedExplore the relationship between viruses and their hosts, and find out how the evolutionary adaptations of bats keep them safe from viruses. --Consider a bat that is infected with several deadly viruses, including ones that cause rabies, SARS, and Ebola.
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05:00 Popular
Why didn't this 2,000 year old body decompose? - Carolyn Marshall
1,086 views / 2 likes - addedDiscover the surprising biodiversity of soil, and how its microbes help support all life on Earth.--It may not appear very lively six feet underground, but a single teaspoon of soil contains more organisms than there are human beings on the planet. From b
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06:10
Who were Las Mariposas, and why were they murdered? - Lisa Krause
254 views / 2 likes - addedGet to know the story of the Mirabal sisters, who led a revolution against Rafael Trujillos dictatorship in the Dominican Republic. --For over 30 years, thousands of people were imprisoned, tortured, and murdered under Rafael Trujillos dictatorship in the
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04:48
How much land does it take to power the world?
236 views / 1 likes - addedExplore the sustainability of fossil fuels, nuclear power, and renewable energy and how much space each of these power sources use.--No matter how we make electricity, it takes up space. Coal requires mines, and plants to convert it into electricity. Nucl
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05:16
How to see with sound - Jacques S. Abramowicz
235 views / 0 likes - addedDiscover how scientists and doctors used bats' ultrasound capabilities as inspiration for SONAR and non-invasive medical procedures.--In a dark cave, bats cant see much. But even with their eyes shut, they can navigate rocky topography at incredible speed
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05:42
Can you solve Dongle's Difficult Dilemma? - Dennis E. Shasha
433 views / 1 likes - addedPractice more problem-solving at https://brilliant.org/TedEd--According to legend, three galactic terraformers shaped your planet into a paradise. When their work was done, they left the source of their power behind: three golden hexagons, hidden in dunge
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05:14
What really happened during the Attica Prison Rebellion - Orisanmi Burton
293 views / 1 likes - addedDig 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
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05:36
Can you solve the Trojan War riddle? - Dennis E. Shasha
655 views / 1 likes - addedPractice more problem-solving at https://brilliant.org/TedEd--On Olympus, youve 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: shou
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05:22
A brief history of toilets - Francis de los Reyes
303 views / 2 likes - addedExplore 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 la
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05:19
What you can do with an extra jaw - Darien Satterfield
183 views / 1 likes - addedDiscover 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 struggle
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05:12
The rise and fall of the Kingdom of Man - Andrew McDonald
215 views / 0 likes - addedDiscover 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
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05:08 Popular
How the COVID-19 vaccines were created so quickly - Kaitlyn Sadtler and Elizabeth Wayne
1,047 views / 3 likes - addedDiscover 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
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05:25 Popular
Why don't we cover the desert with solar panels? - Dan Kwartler
753 views / 0 likes - addedWatch the 2021 TED Global Countdown Livestream here: https://www.youtube.com/watch?v=SG_vqlb1pOQThis empowering event lays out a credible and realistic pathway to a net-zero future. Featuring some of your favorite celebrities, Countdown will leave you hop
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04:40
Why do some people snore so loudly? - Alayna Vaughan
159 views / 0 likes - addedDig into the science of what causes snoring, and how chronic snoring can be a sign of sleep disorders such as sleep apnea.--A leather mask that clamps the mouth shut. A cannonball sewn into a soldiers uniform. A machine that delivers sudden electrical pul
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05:52
Can stereotypes ever be good? - Sheila Marie Orfano and Densho
188 views / 0 likes - addedExplore the model minority stereotype, and discover how it became a label for Asian Americans and is used to enforce racial hierarchies.--In 2007, researchers surveyed 180 teachers to understand if they held stereotypes about their students. The most comm
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05:58
The myth of Lokis monstrous children - Iseult Gillespie
331 views / 0 likes - addedDownload a free audiobook version of Where the Crawdads Sing and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--Odin, the king of Asgard, was plagued by nightmares. Three fearsome figures haunted his dreams: a massive, writhing shadow
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04:42
Can you outsmart the fallacy that divided a nation? - Elizabeth Cox
151 views / 1 likes - addedExplore the middle ground fallacy, which assumes that the truth is always a compromise between two extreme opposing positions.--Its 1819. The US is preparing to make Missouri and Maine new states. One representative insists that slavery shouldnt be allowe
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06:24
Can you solve the Big Bang riddle? - James Tanton
248 views / 0 likes - addedPractice more problem-solving at https://brilliant.org/TedEd--Its moments after the Big Bang and youre still reeling. Youre a particle of matter, amidst a chaotic stew of forces, fusion, and annihilation. If youre lucky and avoid being destroyed by antima
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04:31
How do you know you're not dreaming? - Daniel Gregory
205 views / 0 likes - addedDownload a free audiobook version of The Sandman and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--Bizarre things happen in dreams: you fly, or conjure an all-you-can-eat buffet out of thin air, or get chased by witches through the h
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04:47
Ethical dilemma: Who should you believe? - Alex Worsnip
190 views / 0 likes - addedPuzzle through the ethical dilemma of a spouse accused of murder and decide: do you believe your spouse or the evidence?--Youre sitting on the couch, when you hear a knock on the door. The police have arrived to arrest your spouse for murder. This accusat
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05:06
The Irish myth of Diarmuids betrayal - Iseult Gillespie
234 views / 1 likes - addedDig into the Irish myth of lovers Grinne and Diarmuid, and follow their journey as they flee from her betrothed, Fionn.--Grinne, princess of Tara and bride-to-be, was furious. She had thought she was betrothed to a young soldier, bold and brilliant enough
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06:17
Can you outsmart the college admissions fallacy? - Elizabeth Cox
181 views / 0 likes - addedExplore the circular reasoning fallacy, which occurs when the end of an argument comes back to the start without having proven itself.--Its 1990. A prospective student has filed a complaint about Virginia Military institutes admissions policy that exclude
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04:02
Whats the best country to live in?
173 views / 0 likes - addedDiscover the shortcomings of using GDP to measure a countrys well-being, and what alternatives can be used to gauge quality of life.--Whats the best country to live in? Is it the one with the best food? The longest life expectancy? The best weather? For t
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05:06
The rise and fall of the medieval Islamic Empire - Petra Sijpesteijn & Birte Kristiansen
146 views / 0 likes - addedTrace the rise and fall of the Islamic Empire, from the prophet Muhammad in the 7th century to the sacking of Baghdad. --In the 7th century CE, the prophet Muhammad united the people of the Arabian Peninsula through the formation of Islam. Over the next 3
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04:19
Coneheads, egg stacks and anteater attacks: The reign of a termite queen - Barbara L. Thorne
164 views / 0 likes - addedTake a look inside the conehead termite colony as a queen begins her reign as one of the longest living insects in the animal kingdom.--A single determined termite braves countless threats to participate in the only flight of her lifetime. She evades the
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04:23
How friendship affects your brain - Shannon Odell
263 views / 0 likes - addedDig into what happens to your brain during adolescence that changes how you value, understand, and connect to friends.--If it seems like friendships formed in adolescence are particularly special, that's because they are. Childhood, adolescent, and adult
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05:48
Would you stop dating someone your parents didnt like?
188 views / 1 likes - addedDig into the Romeo and Juliet Effect, which describes the tendency to find someone more desirable when met by parental opposition.--In 1972, psychologists at the University of Colorado surveyed 140 couples to determine whether a relationship facing parent
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05:32
Is it dangerous to wake a sleepwalker? - Emmanuel During
161 views / 0 likes - addedDownload a free audiobook version of The Midnight Library and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--Mumbling fantastical gibberish; devouring blocks of cheese in the nude; peeing in places that arent toilets; and jumping out
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05:23
How do oysters make pearls? - Rob Ulrich
562 views / 0 likes - addedExplore how oysters use calcium carbonate to create pearls, and how this chemical compound creates a vast array of other materials.--Despite their iridescent colors and smooth shapes, pearls are actually made of the exact same material as the craggy shell
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05:56
How will AI change the world?
509 views / 0 likes - addedExplore the current limitations of artificial intelligence and the possibility of creating human-compatible technology.--In the coming years, artificial intelligence is probably going to change your life and likely the entire world. But people have a hard
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06:10
3 ways to end a virus
512 views / 0 likes - addedExplore the three main ways viruses can be driven to extinction, and dig into the possibility of COVID-19 dying out.--Viruses are wildly successful organisms. There are about 100 million times as many virus particles on Earth as there are stars in the obs
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05:22
When are you actually an adult? - Shannon Odell
148 views / 0 likes - addedExplore how scientists define adulthood, and find out if theres a specific age at which we reach maturity. --Most countries recognize 18 as the start of adulthood by granting various freedoms and privileges. Yet theres no exact age or moment in developmen
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05:32
One of the most "dangerous" men in American history - Keenan Norris
159 views / 0 likes - addedGet to know the story of David Walker, an abolitionist whose antislavery pamphlet made him an enemy of the US government.--In 1830, David Walker sewed a pamphlet into the lining of a coat. The volume was thin enough to be hidden, but its content was far f
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05:42
What happens if an engineered virus escapes the lab?
151 views / 0 likes - addedHow do we keep labs that handle dangerous pathogens safe and leak-free? Dig into the ongoing debate over virology research. --Since the 1970s, researchers have engineered superbugs. While this research could help us prepare for future outbreaks, the stake
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05:20
The most important century in human history
104 views / 0 likes - addedIs the 21st century the most pivotal time in human history? Explore how the decisions we make now may impact humanitys future.--Is it possible that this century is the most important one in human history? The 21st century has already proven to be a period
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05:53
The year without summer - David Biello
124 views / 0 likes - addedDig into geoengineering, which uses technology to manipulate Earths environments to counteract climate change.--In 1815, Mount Tambora erupted and its emissions spread across the globe, blotting out the sun for almost an entire year. This wreaked havoc on
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05:06 Popular
Food expiration dates dont mean what you think - Carolyn Beans
861 views / 0 likes - addedFind out what expiration date labels on food actually mean, and discover ways communities and governments can lessen food waste. --Countries around the world waste huge amounts of food every year: roughly a fifth of food items in the US are tossed because
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04:59
The records the British Empire didn't want you to see - Audra A. Dipte
86 views / 0 likes - addedExplore the British policy called Operation Legacy, where the government hid incriminating documents from its former colonies.--In 2009, five Kenyan people took a petition to the British Prime Minister. They claimed they endured human rights abuses in the
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06:22
What caused the Rwandan Genocide? - Susanne Buckley-Zistel
104 views / 0 likes - addedDig into the history of the Rwandan Genocide of 1994, during which over one-tenth of the countrys population was killed.--For one hundred days in 1994, the African country of Rwanda suffered a horrific campaign of mass murder. Neighbor turned against neig
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05:33
What's happening to Earth's core? - Shannon Odell
104 views / 0 likes - addedExplore the science of why Earths atmosphere is losing hydrogen, and find out what other leaks could affect life on our planet.--A hydrogen atom is traveling high within the outermost layer of Earths atmosphere. This particular atom first entered the exos
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05:26
Why your phone battery gets worse over time - George Zaidan
84 views / 0 likes - addedExplore the science of why single-use and rechargeable batteries die, and find out why recycling batteries can be challenging.--Almost all batteries, even single-use batteries, are theoretically rechargeable. Thats because the metals and other chemicals a
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05:23
Can alligators survive this apex predator? - Kenny Coogan
115 views / 0 likes - addedExplore the diverse and vital ecosystem of the Everglades, and discover why the alligator is so essential to the region.--Despite alligators ruling the swamplands of the Everglades for millennia, the last 500 years have brought deadly new predators that c
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04:57 Popular
What happens when you fall into piranha-infested waters? - Antonio Machado-Allison
3,553 views / 5 likes - addedDig into the truth about piranhas and their feeding frenzies, and find out what would likely happen if you fell into their waters.--Youre peering into the Amazon River when, suddenly, you lose your footing and fall. Piranhas dart about in the rapidly appr
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05:20
Ethical dilemma: What makes life worth living? - Douglas MacLean
94 views / 0 likes - addedPuzzle through a classic ethical dilemma and decide: can human existence be meaningful without its creativity and culture? --Life on your planet depends entirely on Nuronium for normal cognition. Unfortunately, its source has been compromised and you are
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05:37
A tour of the ancient Greek Underworld - Iseult Gillespie
126 views / 2 likes - addedDownload a free audiobook version of The Song of Achilles" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed --Achilles, just slain in the Trojan War, arrives in the Underworld and is greeted by Sibyl of Cumae a prophetess and also th
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05:26
The most devastating asteroid to hit Earth - Sean P. S. Gulick
61 views / 0 likes - addedDig into what happened after the Chicxulub asteroid hit the Earth, and how it caused a mass extinction including dinosaurs.--Sixty-six million years ago, near whats now the Yucatn Peninsula, a juvenile sauropod feasted on horsetail plants on a riverbank.
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05:16
How to make smart decisions more easily
91 views / 0 likes - addedExplore the psychology of decision fatigue, what kinds of choices lead us to this state and what we can do to fight it.--Everything our bodies do whether physical or mental uses energy. Studies have found that many individuals seem to have a daily thresho
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05:32
The science of laughter - Sasha Winkler
45 views / 0 likes - addedExplore the common scientific theories about why humans laugh, and how this universal behavior evolved.--Isnt it odd that, when somethings funny, you might show your teeth, change your breathing, become weak and achy in some places, and maybe even cry? In
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06:26
History vs. Egypts "most powerful" pharaoh - Jessica Tomkins
54 views / 0 likes - addedPharaoh Ramesses II presided over a golden age of Egyptian prosperity but was he a model leader or a master of propaganda?--Pharaoh Ramesses II reigned for almost 70 years in the 13th century BCE. He presided over a golden age of Egyptian prosperity, powe
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05:28
Why does this flower smell like a dead body? - Daniel Nickrent
64 views / 0 likes - addedExplore how the Rafflesia plant uses parasitic strategies to grow the worlds largest flower, and find out why it smells so bad.--Deep inside the Sumatran rainforest, a carrion fly descends, guided by the scent of its favorite place to lay eggs: rotting an
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04:51
Can you solve the magical maze riddle? - Alex Rosenthal
45 views / 0 likes - addedPractice more problem-solving at https://brilliant.org/TedEd--Today is the annual wizard tournament featuring competitors from three schools, and youre in charge. The wizards have entered the maze and compete in your chosen events in utmost secrecy; only
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05:43
What causes addiction, and why is it so hard to treat? - Judy Grisel
32 views / 0 likes - addedTake a look at the science of how addictive drugs affect your body and why substance addiction can be so difficult to treat.--As of 2021, more than 36 million people were estimated to be experiencing substance use disorder. This condition spans a spectrum
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05:20
The true story behind the legend of the 47 Rnin - Adam Clulow
23 views / 0 likes - addedDig into one of Japans most infamous stories about the 47 samurai who take revenge for the loss of their leader.--Asano Naganori, lord of Ak domain, fixed his gaze on Kira Yoshinaka, a senior master of ceremony. Asano extended his short sword, charged thr
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