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TED-Ed

TED-Ed’s mission is to create lessons worth sharing. Feed and expand your curiosity with our award-winning animated shorts - published on YouTube and available with supplemental learning materials on ed.ted.com.

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October 5 · 7 min
It's a church. It's a mosque. It's Hagia Sophia. - Kelly Wall
View full lesson: http://ed.ted.com/lessons/it-s-a-church-it-s-a-mosque-it-s-hagia-sophia-kelly-wall If walls could talk, Turkey's Hagia Sophia would have an abundance of stories to tell. Once a church, then a mosque, and later a museum, this world marvel has stood the test of time and war, surviving centuries of conquest by some of history's greatest empires. Kelly Wall takes us through the history of each layer of this great jewel of human desire. Lesson by Kelly Wall, animation by Andrew Foerster. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 7 min
The first and last king of Haiti - Marlene Daut
Dive into the life of Henry Christophe, a former enslaved person and leader in the Haitian Revolution and the only king of Haiti. -- The royal couple of Haiti rode into their coronation to thunderous applause. After receiving his ornate crown, Henry Christophe ascended his throne, towering 20 meters in the air. But little did the cheering onlookers know that the first king of Haiti would also be its last. Who was this revolutionary? Marlene Daut details how a man enslaved at birth rose through the ranks to become king. Lesson by Marlene Daut, directed by Cabong Studios. Animator's website: https://www.cabongstudios.com.br Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon: http://bit.ly/TEDEdPatreon Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram View full lesson: https://ed.ted.com/lessons/the-first-and-last-king-of-haiti-marlene-daut Thank you so much to our patrons for your support! Without you this video would not be possible! Jerome Froelich, Dan Paterniti, Jose Henrique Leopoldo e Silva, Mullaiarasu Sundaramurthy, Elnathan Joshua Bangayan, Caleb ross, Duo Xu, Quinn Shen, Marvin Vizuett, Sid, Marylise CHAUFFETON, Karen Goepen-Wee, Sama aafghani, Mandeep Singh, Abhijit Kiran Valluri, Morgan Williams, Kris Siverhus, Jason Weinstein, Tony Trapuzzano, Devin Harris, Brandy Jones, Shawn Quichocho, Gi Nam Lee, Joy Love Om, Miloš Stevanović, Ghassan Alhazzaa, Yankai Liu, Pavel Zalevskiy, Claudia Mayfield, Stephanie Perozo, Joe Giamartino, Filip Dabrowski, Barbara Smalley, Megan Douglas, Tim Leistikow, Andrés Melo Gámez, Renhe Ji, Ka-Hei Law, Michal Salman, Peter Liu, Mark Morris, Catherine Sverko, Misaki Sato, Tan YH, Ph.D., Rodrigo Carballo, SookKwan Loong, Bev Millar, Merit Gamertsfelder, Lex Azevedo, Noa Shore and Taylor Hunter. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 8 min
How scientists turn lakes into giant batteries
Discover the world’s biggest battery and explore how inventors are creating other giant batteries to help power the world— sustainably. -- As of 2020, the world’s biggest lithium-ion battery is hooked up to the Southern California power grid and can provide enough power for about 250,000 homes. But it's actually not the biggest battery in the world: a pair of lakes are. How can lakes be a battery? Explore how inventors are rethinking what a battery can be, and how these surprising solutions could help us achieve a sustainable future. Directed by Lisa LaBracio. Animation and art direction by Luísa M H Copetti & Hype CG. In partnership with Bill Gates, inspired by his book "How To Avoid A Climate Disaster": http://bit.ly/PlanForZero Check out the videos in this series: http://bit.ly/TEDEdClimate 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 ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/how-powerful-is-the-world-s-biggest-battery Dig deeper with additional resources: https://ed.ted.com/lessons/how-powerful-is-the-world-s-biggest-battery#digdeeper Animator's website: https://www.hype.cg/ Music: https://soundcloud.com/aim-music ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Aaron Henson, Cailin Ramsey, Begum Tutuncu, Ever Granada, Brian Richards, Divina Grace Dar Santos, Cindy O., Jørgen Østerpart, Tyron Jung, Carolyn Corwin, Charlene You, Carsten Tobehn, Katie Dean, Ezgi Yersu, Gerald Onyango, alessandra tasso, Alan Froese, Côme Vincent, Doreen Reynolds-Consolati, Manognya Chakrapani, Ayala Ron, Samantha Chow, Eunsun Kim, Phyllis Dubrow, Ophelia Gibson Best, Paul Schneider, Joichiro Yamada, Henrique 'Sorín' Cassús, Lyn-z Schulte, Elaine Fitzpatrick, Karthik Cherala, Joshua Merchant, Clarence E. Harper Jr., Clarissa Bartolini-Toro, Exal Enrique Cisneros Tuch, Srikote Naewchampa, Tejas Dc, Khalifa Alhulail, Martin Stephen, Dan Paterniti, Jose Henrique Leopoldo e Silva, Elnathan Joshua Bangayan, Jayant Sahewal, Mandeep Singh, Abhijit Kiran Valluri, Morgan Williams, Kris Siverhus, Devin Harris, Joy Love Om and Pavel Zalevskiy. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 6 min
The fable of the moon goddess - Cynthia Fay Davis
Dig into the Maya myth of the moon goddess, Ix Chel, and follow her story as she falls in— and out of— love with the sun god. -- The sun god was in love with the moon goddess, Ix Chel. But the goddess’ grandfather was very possessive, and would not let the sun god anywhere near his beloved granddaughter. Desperate to be together, they escaped and were ready to light up the sky with their powerful rays. Unfortunately, their love story doesn’t end happily ever after. Cynthia Fay Davis details the Maya myth of Ix Chel. Lesson by Cynthia Fay Davis, directed by The Animation Project. 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 ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/the-myth-of-the-moon-goddess-cynthia-fay-davis Dig deeper with additional resources: https://ed.ted.com/lessons/the-myth-of-the-moon-goddess-cynthia-fay-davis#digdeeper ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Liz, Rajath Durgada Manjunath, Dan Nguyen, Chin Beng Tan, Tom Boman, Karen Warner, Isorn Sookwanish, Iryna Panasiuk, Diane Gallin, Aaron Torres, Vasundhar, Eric Braun, Denka Wee, Sonja Worzewski, Amy, Michael Clement, Ghaith Tarawneh, Nathan Milford, Tomas Beckett, Alice Ice, Eric Berman, Kurt Paolo Sevillano, Ron Kakar, Jennifer Heald, Megulo Abebe, TAO7CADENCE, Olympia Buckingham, isolwi, Vedasheersh, Michael Chang, Waqar Sheikh, Irene Y., Kate Sem, VPpurplebelt, Ujjwal Dasu, Angel Alberici, Minh Quan Dinh, Sylvain, JasonD, Terran Gimpel, Talia Sari, Katie McDowell, Allen, Sarat Chandra Vegunta, Mahina Knuckles, Charmaine Hanson, Thawsitt, Jezabel, Abdullah Abdulaziz and Adriano Fontes. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 15 min
Older people are happier - Laura Carstensen
In the 20th century we added an unprecedented number of years to our lifespans, but is the quality of life as good? Surprisingly, yes! At TEDxWomen psychologist Laura Carstensen shows research that demonstrates that as people get older they become happier, more content, and have a more positive outlook on the world. (Filmed at TEDxWomen.) Talk by Laura Carstensen. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 6 min
Why the @#$% is there so much traffic? - Benjamin Seibold
Download a free audiobook version of "Astrophysics for People in a Hurry" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/astrophysics-for-people-in-a-hurry -- You’re cruising down the highway when all of a sudden endless rows of brake lights appear ahead. There’s no accident, no stoplight, no change in speed limit, or narrowing of the road. So why is there so much traffic? It's due to a phenomenon called a phantom traffic jam. Benjamin Seibold explains why it happens and how we might prevent it in the future. Lesson by Benjamin Seibold, directed by Cris Wiegandt. Animator's website: https://criswiegandt.com Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon: http://bit.ly/TEDEdPatreon Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram View full lesson: https://ed.ted.com/lessons/what-is-phantom-traffic-and-why-is-it-ruining-your-life-benjamin-seibold Thank you so much to our patrons for your support! Without you this video would not be possible! Manognya Chakrapani, Ayala Ron, Samantha Chow, Philippe Spoden, Phyllis Dubrow, Michelle Stevens-Stanford, Cas Jamieson, Ophelia Gibson Best, Amber Wood, Paul Schneider, Jun Cai, Tim Robinson, Henrique 'Sorín' Cassús, cnorahs, Lyn-z Schulte, Elaine Fitzpatrick, Karthik Cherala, Clarence E. Harper Jr., Milad Mostafavi, Аркадий Скайуокер, Kiara Taylor, Louisa Lee, eden sher, Vignan Velivela, Sage Curie, Srikote Naewchampa, Tejas Dc, Khalifa Alhulail, Faiza Imtiaz, Martin Stephen, Jerome Froelich, Dan Paterniti, Jose Henrique Leopoldo e Silva, Mullaiarasu Sundaramurthy, Elnathan Joshua Bangayan, Caleb ross, Duo Xu, Quinn Shen, Marvin Vizuett, Sid, Marylise CHAUFFETON, Karen Goepen-Wee, Sama aafghani, Mandeep Singh, Abhijit Kiran Valluri, Morgan Williams, Kris Siverhus, Jason Weinstein, Tony Trapuzzano and Devin Harris. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 18 min
Neuroscience, game theory, apes - Colin Camerer
When two people are trying to make a deal -- whether they're competing or cooperating -- what's really going on inside their brains? Behavioral economist Colin Camerer shows research that reveals just how little we're able to predict what others are thinking. And he presents an unexpected study that shows chimpanzees might just be better at it than we are. (Filmed at TEDxCalTech.) Talk by Colin Camerer. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 22 min
Want to help someone? Stay silent and listen! - Ernesto Sirolli
When most well-intentioned aid workers hear of a problem they think they can fix, they go to work. This, Ernesto Sirolli suggests, is naïve. In this funny and impassioned talk, he proposes that the first step is to listen to the people you're trying to help, and tap into their own entrepreneurial spirit. His advice on what works will help any entrepreneur. Talk by Ernesto Sirolli. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 15 min
The beautiful nano details of our world - Gary Greenberg
When photographed under a 3D microscope, grains of sand appear like colorful pieces of candy and the stamens in a flower become like fantastical spires at an amusement park. Gary Greenberg reveals the thrilling details of the micro world. (Filmed at TEDxMaui.) Talk by Gary Greenberg. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 5 min
Notes of a native son: The world according to James Baldwin - Christina Greer
James Baldwin was an American novelist and social critic whose essays in “Notes of a Native Son” explored race, sex and class distinctions. -- In the 1960s, the FBI amassed almost 2,000 documents in an investigation into one of America’s most celebrated minds. The subject of this inquiry was a writer named James Baldwin, one of the best-selling Black authors in the world at the time. What made him loom so large in the imaginations of both the public and the authorities? Christina Greer explores the life and works of James Baldwin. Lesson by Christina Greer, directed by Jérémie Balais and Jeffig Le Bars. Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon: http://bit.ly/TEDEdPatreon Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram View full lesson: https://ed.ted.com/lessons/notes-of-a-native-son-the-world-according-to-james-baldwin-christina-greer Thank you so much to our patrons for your support! Without you this video would not be possible! Amber Wood, Ophelia Gibson Best, Cas Jamieson, Michelle Stevens-Stanford, Phyllis Dubrow, Andreas Voltios, Eunsun Kim, Philippe Spoden, Samantha Chow, Ayala Ron, Manognya Chakrapani, Simon Holst Ravn, Doreen Reynolds-Consolati, Rakshit Kothari, Melissa Sorrells, Antony Lee, Husain Mohammad, Max Shuai Tang, Côme Vincent, Astia Rizki Safitri, Alan Froese, alessandra tasso, Gerald Onyango, Katrina Harding, Ezgi Yersu, Al the Scottish Wildcat, Katie Dean, Kin Lon Ma, Carsten Tobehn, Boris Langvand, Jeremy Fryd, Charlene You, Carolyn Corwin, rakesh Katragadda, Sergi Páez, Jørgen Østerpart, Karla Brilman, Cindy O., Nicu Boanda, Reagen O'Connor, Sabrina Gonzalez, Dino Biancolini, FAWWAZ GHUWAIDI, Hadi Salahshour, Clement, Sarah Burns, Abdullah Altuwaijri, Jessie McGuire, Divina Grace Dar Santos and Brian Richards. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 8 min
Does your vote matter? The Electoral College explained - Christina Greer
View full lesson: http://ed.ted.com/lessons/does-your-vote-count-the-electoral-college-explained-christina-greer You vote, but then what? Discover how your individual vote contributes to the popular vote and your state's electoral vote in different ways--and see how votes are counted on both state and national levels. Lesson by Christina Greer, animation by Marked Animation. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 5 · 10 min
My glacier cave discoveries - Eddy Cartaya
View full lesson: http://ed.ted.com/lessons/my-glacier-cave-discoveries-eddy-cartaya Snow Dragon. Pure Imagination. Frozen Minotaur. These are the names Eddy Cartaya and his climbing partner Brent McGregor gave three glacier caves that they were the first to explore, caves that are morphing constantly thanks to warm water and warm air. At TEDYouth, Cartaya takes us inside these magical spaces where ice glows in bright blues and greens, and where artifacts rain from the ceiling. Talk by Eddy Cartaya. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 4 · 6 min
What causes an economic recession? - Richard Coffin
How can factors like inflation, supply and demand, and interest rates trigger recessions? Learn the economic basics of modern markets. -- For millennia, the people of Britain had been using bronze to make tools and jewelry, and as a currency for trade. But around 800 BCE, that began to change: the value of bronze declined, causing social upheaval and an economic crisis— what we would call a recession today. So what causes recessions? Richard Coffin digs into the economic fluctuations that affect our modern markets. Lesson by Richard Coffin, directed by Augenblick Studios. Animator's website: http://nabilburias.com Educator's channel: https://www.youtube.com/c/ThePlainBagel Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon: http://bit.ly/TEDEdPatreon Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram View full lesson: https://ed.ted.com/lessons/what-causes-an-economic-recession-richard-m-coffin Thank you so much to our patrons for your support! Without you this video would not be possible! Felipe Hoff, Rebecca Reineke, Cyrus Garay, Victoria Veretilo, Michael Aquilina, William Biersdorf, Patricia Alves Panagides, Valeria Sloan Vasquez, Mike Azarkman, Yvette Mocete, Pavel Maksimov, Victoria Soler-Roig, Betsy Feathers, Samuel Barbas, Therapist Gus, Sai Krishna Koyoda, Elizabeth Parker, William Bravante, Irindany Sandoval, Mark wisdom, Brighteagle, Beatriz Inácio, Mighterbump, Pamela Harrison, Maija Chapman, Liana Switzer, Curtis Light, The Brock, Dianne Palomar, Edgar Campos Barrachina, Maria Lerchbaumer, Ever Granada, Marin Kovachev, Ravi S. Rāmphal, Penelope Misquitta, Tekin Gültekin, Jhuval, Hans Peng, Gaurav Mathur, Erik Biemans, Tony, Michelle, Katie and Josh Pedretti, Vaibhav Mirjolkar, Thomas Bahrman, Allan Hayes, Aidan Forero, Uday Kishore, Mikhail Shkirev, Devesh Kumar, Sunny Patel and Anuj Tomar. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 4 · 8 min
What happens when you spread an idea?
Episode 1: Learn how to identify the qualities that make an idea worth sharing with an audience. -- This is episode 1 of the animated series, “Public Speaking 101.” Ideas change everything — and since language lets us share our ideas, learning how to use it well gives speakers the power to inspire people and even change how they think. This 11-episode course will teach you how to identify, develop, and share your best ideas, while mastering essential communication skills along the way. Directed by Tolga Yıldız, Kozmonot Animation Studio. The TED-Ed Student Talks program provides free, customizable activities for educators to support their students in identifying, developing and sharing their ideas with each other and the world. Learn more at https://ed.ted.com/student_talks 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 ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/what-happens-when-you-share-an-idea Dig deeper with additional resources: https://ed.ted.com/lessons/what-happens-when-you-share-an-idea/digdeeper Animator's website: https://www.kozmonot.tv ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Morgan Williams, Devin Harris, Pavel Zalevskiy, Karen Goepen-Wee, Filip Dabrowski, Barbara Smalley, Megan Douglas, Tim Leistikow, Ka-Hei Law, Hiroshi Uchiyama, Mark Morris, Misaki Sato, EdoKun, SookKwan Loong, Bev Millar, Lex Azevedo, Michael Aquilina, Jason A Saslow, Yansong Li, Cristóbal Moenne, Dawn Jordan, Prasanth Mathialagan, Samuel Doerle, David Rosario, Dominik Kugelmann - they-them, Siamak Hajizadeh, Ryohky Araya, Mayank Kaul, Christophe Dessalles, Heather Slater, Sandra Tersluisen, Zhexi Shan, Bárbara Nazaré, Andrea Feliz, Victor E Karhel, Sydney Evans, Latora, Noel Situ, emily lam, Sid, Niccolò Frassetto, Mana, I'm here because of Knowledge Fight Facebook group., Linda Freedman, Edgardo Cuellar, Jaspar Carmichael-Jack, Michael Burton, VIVIANA A GARCIA BESNE, The Vernon's, and Olha Bahatiuk. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 4 · 18 min
Put a value on nature! - Pavan Sukhdev
Every day, we use materials from the earth without thinking, for free. But what if we had to pay for their true value: would it make us more careful about what we use and what we waste? Think of Pavan Sukhdev as nature's banker -- assessing the value of the Earth's assets. Eye-opening charts will make you think differently about the cost of air, water, trees ... Talk by Pavan Sukhdev. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 4 · 8 min
The Greek tragedy of Oedipus' child - Stephen Esposito
Get to know the story of Antigone, daughter of Oedipus, who was determined to give her slain brother Polyneices a proper burial. -- The gods watched as Oedipus’ daughter, Antigone, stole out of the palace in Thebes the morning after a devastating battle. Antigone was on a dangerous mission to do what she felt was right, though it meant risking her life. She sought to abide by divine law and honor her late brother Polyneices through burial— but the king had other plans. Stephen Esposito shares the tragic Greek tale of Antigone. Lesson by Stephen Esposito, directed by Josh Pilch, Augenblick Studios. Music licensed under Creative Commons: “Devastation And Revenge” “Night Vigil” “The Pyre” “Unholy Knight” By Kevin MacLeod: https://incompetech.com 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 ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/the-greek-tragedy-of-oedipus-daughter-stephen-esposito Dig deeper with additional resources: https://ed.ted.com/lessons/the-greek-tragedy-of-oedipus-daughter-stephen-esposito/digdeeper Animator's website: https://www.instagram.com/thejoshpilchshow ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Lex Azevedo, Michael Aquilina, Jason A Saslow, Yansong Li, Cristóbal Moenne, Dawn Jordan, Prasanth Mathialagan, Samuel Doerle, David Rosario, Dominik Kugelmann - they-them, Siamak Hajizadeh, Ryohky Araya, Mayank Kaul, Christophe Dessalles, Heather Slater, Sandra Tersluisen, Zhexi Shan, Bárbara Nazaré, Andrea Feliz, Victor E Karhel, Sydney Evans, Latora, Noel Situ, emily lam, Sid, Niccolò Frassetto, Mana, I'm here because of Knowledge Fight Facebook group., Linda Freedman, Edgardo Cuellar, Jaspar Carmichael-Jack, Michael Burton, VIVIANA A GARCIA BESNE, The Vernon's, Olha Bahatiuk, Jesús Bíquez Talayero, Chels Raknrl, Sai Pranavi Jonnalagadda, Stuart Rice, Jing Chen, Vector-Dopamine math, Jasper Song, Giorgio Bugnatelli, Chardon, Eddy Trochez, OnlineBookClub.org, Eric Shear, Leith Salem, Omar Hicham, and Adrian Rotaru. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 4 · 22 min
How I'm preparing to get Alzheimer's - Alanna Shaikh
When faced with a parent suffering from Alzheimer's, most of us respond with denial ("It won't happen to me") or extreme efforts at prevention. But global health expert and TED Fellow Alanna Shaikh sees it differently. She's taking three concrete steps to prepare for the moment -- should it arrive -- when she herself gets Alzheimer's disease. Talk by Alanna Shaikh Learn more about your ad choices. Visit megaphone.fm/adchoices
October 4 · 6 min
How to use a paper towel - Joe Smith
You use paper towels to dry your hands every day, but chances are, you're doing it wrong. In this enlightening and funny short talk, Joe Smith reveals the trick to perfect paper towel technique. (Filmed at TEDxConcordiaUPortland.) Talk by Joe Smith. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 4 · 6 min
What makes tattoos permanent? - Claudia Aguirre
View full lesson: http://ed.ted.com/lessons/what-makes-tattoos-permanent-claudia-aguirre The earliest recorded tattoo was found on a Peruvian mummy in 6,000 BC. That's some old ink! And considering humans lose roughly 40,000 skin cells per hour, how do these markings last? Claudia Aguirre details the different methods, machines and macrophages (you'll see) that go into making tattoos stand the test of time. Lesson by Claudia Aguirre, animation by TOGETHER. Learn more about your ad choices. Visit megaphone.fm/adchoices
October 4 · 18 min
Unveiling the secrets of dark matter - Patricia Burchat
View full lesson: http://ed.ted.com/lessons/patricia-burchat-sheds-light-on-dark-matter Physicist Patricia Burchat sheds light on two basic ingredients of our universe: dark matter and dark energy. Comprising 96% of the universe between them, they can't be directly measured, but their influence is immense. Talk by Patricia Burchat. Learn more about your ad choices. Visit megaphone.fm/adchoices

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