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The wars that inspired Game of Thrones - Alex Gendler
 
06:01
View full lesson: http://ed.ted.com/lessons/the-wars-that-inspired-game-of-thrones-alex-gendler Beginning around 1377, medieval England was shaken by a power struggle between two noble families, which spanned generations and involved a massive cast of characters, complex motives and shifting loyalties. Sound familiar? Alex Gendler illustrates how the historical conflict known as the Wars of the Roses served as the basis for much of the drama in Game of Thrones. Lesson by Alex Gendler, animation by Brett Underhill.
Просмотров: 3985196 TED-Ed
The philosophy of Stoicism - Massimo Pigliucci
 
05:30
View full lesson: http://ed.ted.com/lessons/the-philosophy-of-stoicism-massimo-pigliucci What is the best life we can live? How can we cope with whatever the universe throws at us and keep thriving nonetheless? The ancient Greco-Roman philosophy of Stoicism explains that while we may not always have control over the events affecting us, we can have control over how we approach things. Massimo Pigliucci describes the philosophy of Stoicism. Lesson by Massimo Pigliucci, animation by Compote Collective.
Просмотров: 2314401 TED-Ed
Plato’s Allegory of the Cave - Alex Gendler
 
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View full lesson: http://ed.ted.com/lessons/plato-s-allegory-of-the-cave-alex-gendler Twenty four hundred years ago, Plato, one of history’s most famous thinkers, said life is like being chained up in a cave forced to watch shadows flitting across a stone wall. Beyond sounding quite morbid, what exactly did he mean? Alex Gendler unravels Plato's Allegory of the Cave, found in Book VII of "The Republic." Lesson by Alex Gendler, animation by Stretch Films, Inc.
Просмотров: 2679353 TED-Ed
What makes muscles grow? - Jeffrey Siegel
 
04:20
View full lesson: https://ed.ted.com/lessons/what-makes-muscles-grow-jeffrey-siegel We have over 600 muscles in our bodies that help bind us together, hold us up, and help us move. Your muscles also need your constant attention, because the way you treat them on a daily basis determines whether they will wither or grow. Jeffrey Siegel illustrates how a good mix of sleep, nutrition and exercise keep your muscles as big and strong as possible. Lesson by Jeffrey Siegel, animation by Brett Underhill.
Просмотров: 7130953 TED-Ed
The benefits of a bilingual brain - Mia Nacamulli
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/how-speaking-multiple-languages-benefits-the-brain-mia-nacamulli It’s obvious that knowing more than one language can make certain things easier — like traveling or watching movies without subtitles. But are there other advantages to having a bilingual (or multilingual) brain? Mia Nacamulli details the three types of bilingual brains and shows how knowing more than one language keeps your brain healthy, complex and actively engaged. Lesson by Mia Nacamulli, animation by TED-Ed.
Просмотров: 4609460 TED-Ed
The myth of Prometheus - Iseult Gillespie
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-prometheus-iseult-gillespie Before the creation of humanity, the Greek gods won a great battle against a race of giants called the Titans. Most Titans were destroyed or driven to the eternal hell of Tartarus. But the Titan Prometheus, whose name means foresight, persuaded his brother Epimetheus to fight with him on the side of the Gods. Iseult Gillespie shares the myth of Prometheus. Lesson by Iseult Gillespie, directed by Léa Krawczyk. Thank you so much to our patrons for your support! Without you this video would not be possible. Yalda A., Susan Herder, Andrew Bosco, Craig Sheldon, Javier Aldavaz, Bruno Pinho, Rishi Pasham, Nick Johnson, Alex Kongkeo, Levi Cook, Peter Koebel, Misaki Sato, Runarm, Maxi Kobi Einy, Ilya Bondarik, Darren Toh, Bozhidar Karaargirov, Boytsov Ilya, Marc Veale, Rodrigo Carballo, Humberto A OjedaGomez, Daniel Day, SookKwan Loong, Jhuval, Nik Maier.
Просмотров: 2653097 TED-Ed
Why sitting is bad for you - Murat Dalkilinç
 
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View full lesson: http://ed.ted.com/lessons/why-sitting-is-bad-for-you-murat-dalkilinc Sitting down for brief periods can help us recover from stress or recuperate from exercise. But nowadays, our lifestyles make us sit much more than we move around. Are our bodies built for such a sedentary existence? Murat Dalkilinç investigates the hidden risks of sitting down. Lesson by Murat Dalkilinç, animation by Oxbow Creative.
Просмотров: 3708396 TED-Ed
The myth of Arachne  - Iseult Gillespie
 
04:30
Check 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 beholder to stone, Greek mythology brims with shape-shifters. The powerful Gods usually changed their own forms at will - but for mortals, the mutations were often unwanted. Iseult Gillespie shares how one such unnerving transformation befell the spinner Arachne. Lesson by Iseult Gillespie, animation by Mette Ilene Holmriis. Thank you so much to our patrons for your support! Without you this video would not be possible! Manav parmar, Dwight Tevuk, Stephen A. Wilson, Siamak H, Dominik Kugelmann, Katie Winchester, Mary Sawyer, David Rosario, Samuel Doerle, Be Owusu, Susan Herder, Savannah Scheelings, Prasanth Mathialagan, Yanira Santamaria, Chad Harper, Dawn Jordan, Chris Mathew, Constantin Salagor, Activated Classroom Teaching, Kevin Wong, Umar Farooq, Goh Xiang Ting Diana, Dmitry Neverov, Tushar Sharma, Cristóbal Medina Moenne, Silas Schwarz, Fabio Peters, MJ Tan Mingjie, Yansong Li, Jason A Saslow, Michael Aquilina, Joanne Luce, Henry Li, Kyle Nguyen, Taylor Hunter, Noa Shore, Lex Azevedo, Merit Gamertsfelder, Bev Millar, Rishi Pasham, Jhuval , SookKwan Loong, Daniel Day, Nick Johnson, Bruno Pinho, Javier Aldavaz, Rodrigo Carballo, Marc Veale, Boytsov Ilya, Bozhidar Karaargirov, ilya bondarik, maxi kobi einy, Runarm , Misaki Sato, Levi Cook, and Alex Kongkeo.
Просмотров: 2996134 TED-Ed
Can you solve the temple riddle? - Dennis E. Shasha
 
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View full lesson: http://ed.ted.com/lessons/can-you-solve-the-temple-riddle-dennis-e-shasha Your expedition finally stands at the heart of the ancient temple. But as you study the inscriptions in the darkness, two wisps of green smoke burst forth. The walls begin to shake. The giant sandglass begins flowing with less than an hour before it empties, and a rumbling tells you that you don’t want to be around when that happens. Can you use math to escape the temple? Dennis E. Shasha shows how. Lesson by Dennis E. Shasha, animation by Artrake Studio.
Просмотров: 6353053 TED-Ed
What makes a hero? - Matthew Winkler
 
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View full lesson: http://ed.ted.com/lessons/what-makes-a-hero-matthew-winkler What trials unite not only Harry Potter or Frodo Baggins but many of literature's most interesting heroes? And what do ordinary people have in common with these literary heroes? Matthew Winkler takes us step-by-step through the crucial events that make or break a hero. Lesson by Matthew Winkler, animation by Kirill Yeretsky.
Просмотров: 4678860 TED-Ed
What would happen if you didn’t sleep? - Claudia Aguirre
 
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View full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-sleep-claudia-aguirre In the United States, it’s estimated that 30 percent of adults and 66 percent of adolescents are regularly sleep-deprived. This isn’t just a minor inconvenience: staying awake can cause serious bodily harm. Claudia Aguirre shows what happens to your body and brain when you skip sleep. Lesson by Claudia Aguirre, animation by TED-Ed.
Просмотров: 5556678 TED-Ed
Schrödinger's cat: A thought experiment in quantum mechanics - Chad Orzel
 
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View full lesson: http://ed.ted.com/lessons/schrodinger-s-cat-a-thought-experiment-in-quantum-mechanics-chad-orzel Austrian physicist Erwin Schrödinger, one of the founders of quantum mechanics, posed this famous question: If you put a cat in a sealed box with a device that has a 50% chance of killing the cat in the next hour, what will be the state of the cat when that time is up? Chad Orzel investigates this thought experiment. Lesson by Chad Orzel, animation by Agota Vegso.
Просмотров: 2650768 TED-Ed
How to practice effectively...for just about anything - Annie Bosler and Don Greene
 
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View full lesson: http://ed.ted.com/lessons/how-to-practice-effectively-for-just-about-anything-annie-bosler-and-don-greene Mastering any physical skill takes practice. Practice is the repetition of an action with the goal of improvement, and it helps us perform with more ease, speed, and confidence. But what does practice actually do to make us better at things? Annie Bosler and Don Greene explain how practice affects the inner workings of our brains. Lesson by Annie Bosler and Don Greene, animation by Martina Meštrović.
Просмотров: 3807446 TED-Ed
The tragic myth of Orpheus and Eurydice - Brendan Pelsue
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-tragic-myth-of-orpheus-and-eurydice-brendan-pelsue The marriage of Orpheus, the greatest of all poets and musicians, to Eurydice, a wood nymph, was heralded as the perfect union. Anyone could tell the couple was deeply in love. So when their wedding ceremony ended in Eurydice's untimely death, Orpheus had no choice but to venture into the underworld to try to reclaim his lost love. Brendan Pelsue shares the tragic myth of Orpheus and Eurydice. Lesson by Brendan Pelsue, animation by Anton Bogaty. Thank you so much to our patrons for your support! Without you this video would not be possible! Silas Schwarz, Fabio Peters, MJ Tan Mingjie, Yansong Li, Jason A Saslow, Michael Aquilina, Joanne Luce, Henry Li, Elias Wewel, Kyle Nguyen, Taylor Hunter, Noa Shore, Lex Azevedo, Merit Gamertsfelder, Bev Millar, Rishi Pasham, Jhuval , SookKwan Loong, Daniel Day, Nick Johnson, Bruno Pinho, Javier Aldavaz, Rodrigo Carballo, Marc Veale, Boytsov Ilya, Bozhidar Karaargirov, ilya bondarik, maxi kobi einy, Runarm , Misaki Sato, Peter Koebel, Levi Cook, Alex Kongkeo, Craig Sheldon, Andrew Bosco and Catherine Sverko.
Просмотров: 2385952 TED-Ed
Can you solve the prisoner hat riddle? - Alex Gendler
 
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View full lesson: http://ed.ted.com/lessons/can-you-solve-the-prisoner-hat-riddle-alex-gendler Want more? Try the buried treasure riddle: https://www.youtube.com/watch?v=tCeklW2e6_E You and nine other individuals have been captured by super-intelligent alien overlords. The aliens think humans look quite tasty, but their civilization forbids eating highly logical and cooperative beings. Unfortunately, they’re not sure whether you qualify, so they decide to give you all a test. Can you solve this hat riddle? Alex Gendler shows how. Lesson by Alex Gendler, animation by Artrake Studio.
Просмотров: 12895749 TED-Ed
The immortal cells of Henrietta Lacks - Robin Bulleri
 
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View full lesson: http://ed.ted.com/lessons/the-immortal-cells-of-henrietta-lacks-robin-bulleri Imagine something small enough to float on a particle of dust that holds the keys to understanding cancer, virology, and genetics. Luckily for us, such a thing exists in the form of trillions upon trillions of human, lab-grown cells called HeLa. But where did we get these cells? Robin Bulleri tells the story of Henrietta Lacks, a woman whose DNA led to countless cures, patents, and discoveries. Lesson by Robin Bulleri, animation by Brandon Denmark.
Просмотров: 1966276 TED-Ed
The great conspiracy against Julius Caesar - Kathryn Tempest
 
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View full lesson: http://ed.ted.com/lessons/the-great-conspiracy-against-julius-caesar-kathryn-tempest On March 15th, 44 BCE, Roman dictator Julius Caesar was assassinated by a group of about 60 of his own senators. Why did these self-titled Liberators want him dead? And why did Brutus, whose own life had been saved by Caesar, join in the plot? Kathryn Tempest investigates the personal and political assassination of Julius Caesar. Lesson by Kathryn Tempest, animation by Brett Underhill.
Просмотров: 3327431 TED-Ed
The Egyptian Book of the Dead: A guidebook for the underworld - Tejal Gala
 
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View full lesson: http://ed.ted.com/lessons/the-egyptian-book-of-the-dead-tejal-gala Ancient Egyptians believed that in order to become immortal after death, a spirit must first pass through the underworld — a realm of vast caverns, lakes of fire, and magical gates. Needless to say, one needed to come prepared. But how? Tejal Gala describes an Egyptian "Book of the Dead" -- a customized magic scroll written by the living to promote a smooth passage to the afterlife when they died. Lesson by Tejal Gala, animation by Silvia Prietov.
Просмотров: 2409460 TED-Ed
The psychology of narcissism - W. Keith Campbell
 
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View full lesson: http://ed.ted.com/lessons/the-psychology-of-narcissism-w-keith-campbell Narcissism isn’t just a personality type that shows up in advice columns; it’s actually a set of traits classified and studied by psychologists. But what causes it? And can narcissists improve on their negative traits? W. Keith Campbell describes the psychology behind the elevated and sometimes detrimental self-involvement of narcissists. Lesson by W. Keith Campbell, animation by TOGETHER.
Просмотров: 4842925 TED-Ed
Why don't perpetual motion machines ever work? - Netta Schramm
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/why-don-t-perpetual-motion-machines-ever-work-netta-schramm Perpetual motion machines — devices that can do work indefinitely without any external energy source — have captured many inventors’ imaginations because they could totally transform our relationship with energy. There’s just one problem: they don’t work. Why not? Netta Schramm describes the pitfalls of perpetual motion machines. Lesson by Netta Schramm, animation by TED-Ed.
Просмотров: 5538236 TED-Ed
The myth of Thor's journey to the land of giants - Scott A. Mellor
 
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Download a free audiobook and support TED-Ed's nonprofit mission: http://adbl.co/2om4O4Q Check out Neil Gaiman's "Norse Mythology": http://bit.ly/2opZptA View full lesson: https://ed.ted.com/lessons/the-myth-of-thor-s-journey-to-the-land-of-giants-scott-a-mellor Thor – son of Odin, god of thunder, and protector of mankind – struggled mightily against his greatest challenge yet: opening a bag of food. How had the mighty god fallen so far? Scott Mellor tells the myth of Thor's journey to Utgard. Lesson by Scott A. Mellor, animation by Rune F.B. Hansen. Thank you so much to our patrons for your support! Without you this video would not be possible! Alejandro Cachoua, Thomas Mungavan, Elena Crescia, Edla Paniguel, Sarah Lundegaard, Charlsey, Anna-Pitschna Kunz, Tim Armstrong, Alessandro, Erika Blanquez, Ricki Daniel Marbun, zjweele13, Judith Benavides, Znosheni Kedy, Caitlin de Falco, Scheherazade Kelii, Errys, James Bruening, Michael Braun-Boghos, Ricardo Diaz, Kack-Kyun Kim, Alexandrina Danifeld, Danny Romard, Yujing Jiang, Stina Boberg, Mariana Ortega, Anthony Wiggins, Hoai Nam Tran, Joe Sims, David Petrovič, Chris Adriaensen, Lowell Fleming, Lorenzo Margiotta, Amir Ghandeharioon, Anuj Tomar, Sunny Patel, Rachel Birenbaum, Vijayalakshmi, Devesh Kumar, Uday Kishore, Aidan Forero, Leen Mshasha, Allan Hayes, Thomas Bahrman, Alexander Baltadzhiev, Vaibhav Mirjolkar, Tony, Michelle, Katie and Josh Pedretti, Erik Biemans, Gaurav Mathur, Sameer Halai, Hans Peng, Tekin Gültekin, Thien Loc Huynh, Bogdan Alexandru Stoica, Hector Quintanilla, PH Chua, Raheem, and Varinia Bohoslavsky.
Просмотров: 2297509 TED-Ed
Who were the Vestal Virgins, and what was their job? - Peta Greenfield
 
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View full lesson: http://ed.ted.com/lessons/who-were-the-vestal-virgins-and-what-was-their-job-peta-greenfield In ancient Rome, Vestal Virgins were tasked with keeping vigil over the flame of Vesta, the virgin goddess of the hearth. The flame represented two things: the continuation of Rome as a power in the world and the continuing virginity of Vesta’s priestesses. But what was life really like for these Vestal Virgins? Peta Greenfield goes back in time to find out. Lesson by Peta Greenfield, animation by Kozmonot Animation Studio.
Просмотров: 3425375 TED-Ed
The rise and fall of the Berlin Wall - Konrad H. Jarausch
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-rise-and-fall-of-the-berlin-wall-konrad-h-jarausch On August 13, 1961, construction workers began tearing up streets and erecting barriers in Berlin. This night marked the beginning of one of history’s most infamous dividing lines: the Berlin Wall. Construction continued for a decade as the wall cut through neighborhoods, separated families, and divided not just Germany, but the world. Konrad H. Jarausch details the history of the Berlin Wall. Lesson by Konrad H. Jarausch, directed by Remus & Kiki.
Просмотров: 2749871 TED-Ed
History’s deadliest colors - J. V. Maranto
 
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View full lesson: http://ed.ted.com/lessons/history-s-deadliest-colors-j-v-maranto When radium was first discovered, its luminous green color inspired people to add it into beauty products and jewelry. It wasn’t until much later that we realized that radium’s harmful effects outweighed its visual benefits. Unfortunately, radium isn’t the only pigment that historically seemed harmless or useful but turned out to be deadly. J. V. Maranto details history’s deadliest colors. Lesson by J. V. Maranto, animation by Juan M. Urbina.
Просмотров: 2763320 TED-Ed
Why do cats act so weird? - Tony Buffington
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/why-do-cats-act-so-weird-tony-buffington They’re cute, they’re lovable, and judging by the 26 billion views on over 2 million YouTube videos of them, one thing is certain: cats are very entertaining. But their strange feline behaviors, both amusing and baffling, leave many of us asking: Why do cats do that? Tony Buffington explains the science behind some of your cat’s strangest behaviors. Lesson by Tony Buffington, animation by Chintis Lundgren.
Просмотров: 5773311 TED-Ed
What "Orwellian" really means - Noah Tavlin
 
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View full lesson: http://ed.ted.com/lessons/what-orwellian-really-means-noah-tavlin If you’ve watched the news or followed politics, chances are you’ve heard the term Orwellian thrown around in one context or another. But have you ever stopped to think about what it really means, or why it’s used so often? Noah Tavlin dissects the term. Lesson by Noah Tavlin, animation by TED-Ed.
Просмотров: 1223694 TED-Ed
The science of attraction - Dawn Maslar
 
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View full lesson: http://ed.ted.com/lessons/the-science-of-attraction-dawn-maslar Romantic chemistry is all about warm, gooey feelings that gush from the deepest depths of the heart...right? Not quite. Actually, the real boss behind attraction is your brain, which runs through a very quick, very complex series of calculations when assessing a potential partner. Dawn Maslar explores how our five senses contribute to this mating game, citing some pretty wild studies along the way. Lesson by Dawn Maslar, animation by TOGETHER.
Просмотров: 3721693 TED-Ed
The myth of Icarus and Daedalus - Amy Adkins
 
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View full lesson: http://ed.ted.com/lessons/the-myth-of-icarus-and-daedalus-amy-adkins In mythological ancient Greece, Icarus flew above Crete on wings made from wax and feathers, defying the laws of man and nature. To witnesses on the ground, he looked like a god, and he felt like one too. But, in his society, the line that separated god from man was absolute, and the punishment for mortals who attempted to cross it was severe. Amy Adkins explains the myth of Icarus and Daedalus. Lesson by Amy Adkins, animation by TED-Ed.
Просмотров: 2752588 TED-Ed
How smart are dolphins? - Lori Marino
 
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View full lesson: http://ed.ted.com/lessons/how-smart-are-dolphins-lori-marino Dolphins are one of the smartest animal species on Earth. In fact, their encephalization quotient (their brain size compared to the average for their body size) is second only to humans. But exactly how smart are they? Lori Marino details some incredible facts about dolphins. Lesson by Lori Marino, animation by Zedem Media.
Просмотров: 1343180 TED-Ed
Why incompetent people think they're amazing - David Dunning
 
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Check 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, compared to other people you know? Knowing how our skills stack up against others is useful in many ways. But psychological research suggests that we’re not very good at evaluating ourselves accurately. In fact, we frequently overestimate our own abilities. David Dunning describes the Dunning-Kruger effect. Lesson by David Dunning, directed by Wednesday Studio, music and sound by Tom Drew. Thank you so much to our patrons for your support! Without you this video would not be possible! Juan, Jordan Tang, Kent Logan, Alexandra Panzer, Jen, Ellen Spertus, Ryan Mehendale, Mary Sawyer, Scott Gass, Ruth Fang, Mayank Kaul, Hazel Lam, Tan YH, Be Owusu, Samuel Doerle, David Rosario, Katie Winchester, Michel Reyes, Dominik Kugelmann, Siamak H, Stephen A. Wilson, Manav Parmar, Jhiya Brooks, David Lucsanyi, Querida Owens.
Просмотров: 3269490 TED-Ed
Meet the tardigrade, the toughest animal on Earth - Thomas Boothby
 
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View full lesson: http://ed.ted.com/lessons/meet-the-tardigrade-the-toughest-animal-on-earth-thomas-boothby Without water, a human can only survive for about 100 hours. But there’s a creature so resilient that it can go without it for decades. This 1-millimeter animal can survive both the hottest and coldest environments on earth, and can even withstand high levels of radiation. Thomas Boothby introduces us to the tardigrade, one of the toughest creatures on Earth. Lesson by Thomas Boothby, animation by Boniato Studio.
Просмотров: 2556297 TED-Ed
Why are some people left-handed? - Daniel M. Abrams
 
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View full lesson: http://ed.ted.com/lessons/why-are-some-people-left-handed-daniel-m-abrams Today, about one-tenth of the world’s population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place? Daniel M. Abrams investigates how the uneven ratio of lefties and righties gives insight into a balance between competitive and cooperative pressures on human evolution. Lesson by Daniel M. Abrams, animation by TED-Ed.
Просмотров: 4012292 TED-Ed
How to read music - Tim Hansen
 
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Like an actor's script, a sheet of music instructs a musician on what to play (the pitch) and when to play it (the rhythm). Sheet music may look complicated, but once you've gotten the hang of a few simple elements like notes, bars and clefs, you're ready to rock. Tim Hansen hits the instrumental basics you need to read music.
Просмотров: 2749177 TED-Ed
The myth of King Midas and his golden touch - Iseult Gillespie
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-king-midas-and-his-golden-touch-iseult-gillespie In Greek mythology, King Midas is known as a rogue ruler whose antics bemused his people and irritated the Gods. Many know the classic story of Midas's golden touch, but the foolish king was also known for his unusual pair of ears. Iseult Gillespie shares the myth of King Midas. Lesson by Iseult Gillespie, animation by TED-Ed. Thank you so much to our patrons for your support! Without you this video would not be possible! Milad Mostafavi, Rob Johnson, Singh Devesh Sourabh, Ashley Maldonado, Clarence E. Harper Jr., Bojana Golubovic, Mihail Radu Pantilimon, Sarah Yaghi, Benedict Chuah, Karthik Cherala, haventfiguredout , Violeta Cervantes, Elaine Fitzpatrick, Lyn-z Schulte, Sharon Chou, Henrique 'Sorín' Cassús, Tim Robinson, Kiarash Asar, Jun Cai, Paul Schneider, Amber Wood, Ophelia Gibson Best, Cas Jamieson, Michelle Stevens-Stanford, Phyllis Dubrow, Andreas Voltios, Aliyya Rachmadi, Eunsun Kim, Philippe Spoden, Samantha Chow, Armando Ello, Ayala Ron, Manognya Chakrapani, Simon Holst Ravn, Doreen Reynolds-Consolati, Rakshit Kothari, Melissa Sorrells, Antony Lee, Husain Mohammad, Dino Hrnjić, Max Shuai Tang, Côme Vincent, Astia Rizki Safitri, Alan Froese, alessandra tasso, Jamerson Chingapanini, Gerald Onyango, Dalton Valette, Katrina Harding, Ezgi Yersu, Al the Scottish Wildcat, Katie Dean, Kin Lon Ma, Carsten Tobehn, Boris Langvand, Jeremy Fryd, and Charlene You.
Просмотров: 1947501 TED-Ed
The treadmill's dark and twisted past - Conor Heffernan
 
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View full lesson: http://ed.ted.com/lessons/the-treadmill-s-dark-and-twisted-past-conor-heffernan The constant thud underneath your feet. The constrained space. The monotony of going nowhere fast. Running on a treadmill can certainly feel like torture, but did you know it was originally used for that very purpose? Conor Heffernan details the dark and twisted history of the treadmill. Lesson by Conor Heffernan, animation by Yukai Du.
Просмотров: 1951126 TED-Ed
Does time exist? - Andrew Zimmerman Jones
 
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Download a free audiobook version of "A Brief History of Time" and support TED-Ed's nonprofit mission: https://adbl.co/2NWYjAh Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/a-brief-history-of-time View full lesson: https://ed.ted.com/lessons/does-time-exist-andrew-zimmerman-jones The earliest time measurements were observations of cycles of the natural world, using patterns of changes from day to night and season to season to build calendars. More precise time-keeping eventually came along to put time in more convenient boxes. But what exactly are we measuring? Andrew Zimmerman Jones contemplates whether time is something that physically exists or is just in our heads. Lesson by Andrew Zimmerman Jones, directed by Nice Shoes. Thank you so much to our patrons for your support! Without you this video would not be possible! Chung Wah Gnapp, Andrew Sprott, Jane White, Ayan Doss, BRENDAN NEALE, Lawrence Teh Swee Kiang, Alex Pierce, Nick Cozby, Jeffrey Segrest, Anthony Arcis, Ugur Doga Sezgin, Kathryn Vacha, Allyson Martin, Srinivasa C Pasumarthi, 张晓雨, Ann Marie Reus, Nishant Suneja, Javier Lara Rosado, Jerry Yang, Shubham Arora, Sebastian Regez, Danielle Downs, Clovis Norroy, Liz Candee, Vinh-Thuy Nguyen, Amy Lopez, SANG HAN, Aries SW, Sebastiaan Hols, Grimes Gregory, João Henrique Rodrigues, Michael Lucke, Annastasshia Ames, Claudia Hernandez Chavarria, Livia-Alexandra Sarban, Lee, Karthik Balsubramanian, Mathew Samuel, Turine Tran, Ido brown, Jordan Tang, Christopher Jimenez, Juan, Tracey Tobkin, Sid, emily lam, Kathryn J Hammond, Elliot Poulin, Noel Situ and Latora Slydell.
Просмотров: 825921 TED-Ed
Can you solve the locker riddle? - Lisa Winer
 
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View full lesson: http://ed.ted.com/lessons/can-you-solve-the-locker-riddle-lisa-winer Your rich, eccentric uncle just passed away, and you and your 99 nasty relatives have been invited to the reading of his will. He wanted to leave all of his money to you, but he knew that if he did, your relatives would pester you forever. Can you solve the riddle he left for you and get the inheritance? Lisa Winer shows how. Lesson by Lisa Winer, animation by Artrake Studio.
Просмотров: 6270611 TED-Ed
What is dyslexia? - Kelli Sandman-Hurley
 
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View full lesson: http://ed.ted.com/lessons/what-is-dyslexia-kelli-sandman-hurley Dyslexia affects up to 1 in 5 people, but the experience of dyslexia isn't always the same. This difficulty in processing language exists along a spectrum -- one that doesn't necessarily fit with labels like "normal" and "defective." Kelli Sandman-Hurley urges us to think again about dyslexic brain function and to celebrate the neurodiversity of the human brain. Lesson by Kelli Sandman-Hurley, animation by Marc Christoforidis.
Просмотров: 2501047 TED-Ed
The difference between classical and operant conditioning - Peggy Andover
 
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View full lesson: http://ed.ted.com/lessons/the-difference-between-classical-and-operant-conditioning-peggy-andover Why is it that humans react to stimuli with certain behaviors? Can behaviors change in response to consequences? Peggy Andover explains how the brain can associate unrelated stimuli and responses, proved by Ivan Pavlov's famous 1890 experiments, and how reinforcement and punishment can result in changed behavior. Lesson by Peggy Andover, animation by Alan Foreman.
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What would happen if you didn’t drink water? - Mia Nacamulli
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-drink-water-mia-nacamulli Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies, and how much do we actually need to drink to stay healthy? Mia Nacamulli details the health benefits of hydration. Lesson by Mia Nacamulli, animation by Chris Bishop.
Просмотров: 6954650 TED-Ed
What is the tragedy of the commons? - Nicholas Amendolare
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-is-the-tragedy-of-the-commons-nicholas-amendolare Is it possible that overfishing, super germs, and global warming are all caused by the same thing? In 1968, a man named Garrett Hardin sat down to write an essay about overpopulation. Within it, he discovered a pattern of human behavior that explains some of history’s biggest problems. Nicholas Amendolare describes the tragedy of the commons. Lesson by Nicholas Amendolare, directed by TED-Ed. Thank you so much to our patrons for your support! Without you this video would not be possible. Brandy Jones, John Ess, Jessica James, Tom Lee, Stephen Michael Alvarez, Hoang Ton, Jason Weinstein, Juliana, Alexander Walls, Kris Siverhus, Abhijit Kiran Valluri, Morgan Williams, Annamaria Szilagyi, Sama aafghani, Hannah Beth, Peter Owen, Mandeep Singh, سلطان الخليفي, Vinicius Lhullier, Marylise CHAUFFETON, Connor Wytko, Quinn Shen, Joshua Plant, Jayant Sahewal, Marvin Vizuett.
Просмотров: 1016772 TED-Ed
The Arctic vs. the Antarctic - Camille Seaman
 
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View full lesson: http://ed.ted.com/lessons/the-arctic-vs-the-antarctic-camille-seaman How can you tell the two poles apart? Where are the penguins? What about the bears? The Arctic pole is located in the Northern Hemisphere within the deep Arctic Ocean, while the Antarctic pole is smack in the middle of the ice-covered Antarctica. Camille Seaman describes how enterprising people and organisms have found ways to reside around both poles despite the frigid temperatures. Lesson by Camille Seaman, animation by Provincia Studio.
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How sugar affects the brain - Nicole Avena
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/how-sugar-affects-the-brain-nicole-avena When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more. Nicole Avena explains why sweets and treats should be enjoyed in moderation. Lesson by Nicole Avena, animation by STK Films.
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The unexpected math behind Van Gogh's "Starry Night" - Natalya St. Clair
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/the-unexpected-math-behind-van-gogh-s-starry-night-natalya-st-clair Physicist Werner Heisenberg said, “When I meet God, I am going to ask him two questions: why relativity? And why turbulence? I really believe he will have an answer for the first.” As difficult as turbulence is to understand mathematically, we can use art to depict the way it looks. Natalya St. Clair illustrates how Van Gogh captured this deep mystery of movement, fluid and light in his work. Lesson by Natalya St. Clair, animation by Avi Ofer.
Просмотров: 6550535 TED-Ed
What are those floaty things in your eye? - Michael Mauser
 
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View full lesson: http://ed.ted.com/lessons/what-are-those-floaty-things-in-your-eye-michael-mauser Sometimes, against a uniform, bright background such as a clear sky or a blank computer screen, you might see things floating across your field of vision. What are these moving objects, and how are you seeing them? Michael Mauser explains the visual phenomenon that is floaters. Lesson by Michael Mauser, animation by Reflective Films.
Просмотров: 11186268 TED-Ed
Why do people join cults? - Janja Lalich
 
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View full lesson: http://ed.ted.com/lessons/why-do-people-join-cults-janja-lalich Today, there are thousands of cults around the world. Broadly speaking, a cult is a group or movement with a shared commitment to a usually extreme ideology that’s typically embodied in a charismatic leader. But what exactly differentiates cults from other groups – and why do people join them? Janja Lalich describes how cults recruit and manipulate their members. Lesson by Janja Lalich, animation by Globizco.
Просмотров: 1796829 TED-Ed
Which is stronger: Glue or tape? - Elizabeth Cox
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/which-is-stronger-glue-or-tape-elizabeth-cox The oldest glue in the world is over 8,000 years old and comes from a cave near the Dead Sea. Today, we have enough types of tape and glue to build and repair almost anything. But what gives glue and tape their stickiness? And is one stronger than the other? Elizabeth Cox explores the world of adhesives. Lesson by Elizabeth Cox, animation by Sinbad Richardson. Thank you so much to our patrons for your support! Without you this video would not be possible! maxi kobi einy, Runarm, Misaki Sato, Levi Cook, Catherine Sverko, Robert Sukosd, Mark Morris, Tamás Drávai, Peter Liu, Leora Allen, Michal Salman, Julie Cummings-Debrot, Gilly, Ka-Hei Law, Aleksandar Srbinovski, Renhe Ji, Andrés Melo Gámez, Tim Leistikow, Moonlight , Megan Douglas, Barbara Smalley, Filip Dabrowski, Joe Giamartino, Clair Chen, Karen Goepen-Wee, Bryan Blankenburg, Bah Becerra, Stephanie Perozo, Marc Bilodeau, Ruby Solorzano, Ivan Tsenov, Claudia Mayfield, Justus Berberich, Pavel Zalevskiy, Yankai Liu, Duo Xu, Ghassan Alhazzaa, Miloš Stevanović, Narat Suchartsunthorn, Joy Love Om, Gi Nam Lee, Shawn Quichocho, Simone Kidner, Barun Padhy, Brandy Jones, Devin Harris, Tony Trapuzzano, Stephen Michael Alvarez, Juliana, Jason Weinstein, Kris Siverhus, Annamaria Szilagyi, and Morgan Williams.
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Why can't you divide by zero? - TED-Ed
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-can-t-you-divide-by-zero In the world of math, many strange results are possible when we change the rules. But there’s one rule that most of us have been warned not to break: don’t divide by zero. How can the simple combination of an everyday number and a basic operation cause such problems? Lesson by TED-Ed, animation by Nick Hilditch. Thank you so much to our patrons for your support! Without you this video would not be possible! Craig Sheldon, Andrew Bosco, Nik Maier, Adi V, Hiroshi Uchiyama, Chris , Vik Nagjee, Della Palacios, Alexander Walls, سلطان الخليفي, Ibel Wong, Kiarash Asar, Aliyya Rachmadi, Max Shuai Tang, Jamerson Chingapanini, Al the Scottish Wildcat, Janelle , Sabrina Gonzalez, Malcolm Callis, and Aaron Henson.
Просмотров: 2452980 TED-Ed
A day in the life of a Roman soldier - Robert Garland
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/a-day-in-the-life-of-a-roman-soldier-robert-garland The year is 15 CE, and the Roman Empire is prospering. Most of the credit will go to the emperor, but this success wouldn’t have been possible without loyal soldiers like Servius Felix. Robert Garland illuminates what life was like for a solider in the Roman army. Lesson by Robert Garland, animation by Brett Underhill. Thank you so much to our patrons for your support! Without you this video would not be possible! Luis Felipe Ruiz Langenscheidt, QIUJING L BU, Ernest Chow, Kyanta Yap, Shawar Khan, Elizabeth Cruz, Rohan Gupta, Sarah Lundegaard, Michael Braun-Boghos, Yujing Jiang, Aubrie Groesbeck, Kyoung-Rok Jang, Kathryn J Hammond, sammie goh, Delene McCoy, Mayank Kaul, Ruth Fang, Scott Gass, Mary Sawyer, Jason A Saslow, Joanne Luce, Rishi Pasham, Bruno Pinho, Javier Aldavaz, Craig Sheldon, Andrew Bosco, Nik Maier, Adi V, Hiroshi Uchiyama, Chris , Vik Nagjee, Della Palacios, Alexander Walls, سلطان الخليفي, Ibel Wong, Kiarash Asar, Aliyya Rachmadi, Max Shuai Tang, Jamerson Chingapanini, Al the Scottish Wildcat, Janelle , Sabrina Gonzalez, Malcolm Callis, Aaron Henson, Ricki Daniel Marbun, James Bruening, Ricardo Diaz, Danny Romard, Mariana Ortega, Leen Mshasha, Hector Quintanilla, Raheem , Roman Pinchuk, Soma Ali, Ai Ejima, Barbara Younker, Mohammad Said, Ojas Kapoor, Maurice Castonguay, Rob Johnson, and Bogdan Alexandru Stoica.
Просмотров: 4481340 TED-Ed
The myth of Cupid and Psyche - Brendan Pelsue
 
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Check out TED-Ed's Patreon page! https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-cupid-and-psyche-brendan-pelsue Psyche was born so beautiful that she was worshipped as a new incarnation of Venus, the goddess of love. But human lovers were too intimidated to approach her, and Apollo recommended her father abandon her on a crag where she would marry “a cruel and savage, serpent-like winged evil.” But Psyche’s story ended up being much more interesting. Brendan Pelsue shares the myth of Cupid and Psyche. Lesson by Brendan Pelsue, directed by TED-Ed.
Просмотров: 3219149 TED-Ed