TED-Ed

View full lesson: http://ed.ted.com/lessons/the-science-of-spiciness-rose-eveleth

Uploaded 10-03-14

When you take a bite of a hot pepper, your body reacts as if your mouth is on fire -- because that's essentially what you've told your brain! Rose Eveleth details the science and history behind spicy foods, giving insights into why some people continue to pay the painful price for a little spice.

Lesson by Rose Eveleth, animation by Flaming Medusa Studios Inc.



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View full lesson: http://ed.ted.com/lessons/malcolm-gladwell-on-spaghetti-sauce

Uploaded 06-07-13

Tipping Point author Malcolm Gladwell gets inside the food industry's pursuit of the perfect spaghetti sauce -- and makes a larger argument about the nature of choice and happiness.

Talk by Malcolm Gladwell.



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View full lesson: http://ed.ted.com/lessons/building-the-seed-cathedral-thomas-heatherwick

A future more beautiful? Architect Thomas Heatherwick shows five recent projects featuring ingenious bio-inspired designs. Some are remakes of the ordinary: a bus, a bridge, a power station ... And one is an extraordinary pavilion, the Seed Cathedral, a celebration of growth and light.

Talk by Thomas Heatherwick.

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How do fast-paced video games affect the brain? Step into the lab with cognitive researcher Daphne Bavelier to hear surprising news about how video games, even action-packed shooter games, can help us learn, focus and, fascinatingly, multitask. (Filmed at TEDxCHUV.)

Talk by Daphne Bavelier.

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View full lesson: http://ed.ted.com/lessons/why-do-we-see-illusions-mark-changizi

Why can't our extremely complex eyes render simple optical illusions? Surprise, surprise -- it comes back to the brain, which has only evolved to encounter natural stimuli. At TEDYouth 2012, Mark Changizi explains how the brain reckons with optical illusions.

Talk by Mark Changizi.

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View full lesson: http://ed.ted.com/lessons/history-vs-christopher-columbus-alex-gendler

Uploaded 13-10-14

Many people in the United States and Latin America have grown up celebrating the anniversary of Christopher Columbus’s voyage. But was he an intrepid explorer who brought two worlds together or a ruthless exploiter who brought colonialism and slavery? And did he even discover America at all? Alex Gendler puts Columbus on the stand in History vs. Christopher Columbus.

Lesson by Alex Gendler, animation by Brett Underhill.



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Ancient monuments give us clues to astonishing past civilizations -- but they're under threat from pollution, war, neglect. Ben Kacyra, who invented a groundbreaking 3D scanning system, is using his invention to scan and preserve the world's heritage in archival detail. (Watch to the end for a little demo.)

Uploaded 09-08-13

Talk by Ben Kacyra.



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Explore the common scientific theories about why humans laugh, and how this universal behavior evolved.

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Isn’t it odd that, when something’s funny, you might show your teeth, change your breathing, become weak and achy in some places, and maybe even cry? In other words, why do we do this bizarre thing that is laughter? Since there’s no archaeological record of laughter, it’s impossible to say exactly how and why it evolved, but scientists have some theories. Sasha Winkler digs into the reflex.

Lesson by Sasha Winkler, directed by Hanna Rybak.

Animal vocalization sounds are courtesy of Dr. Jaak Panksepp, Schwing, R., Nelson, X. J., Wein, A., & Parsons, S. (2017). Positive emotional contagion in a New Zealand parrot. Current Biology, 27(6), R213-R214.

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View full lesson: https://ed.ted.com/lessons/the-science-of-laughter-sasha-winkler
Dig deeper with additional resources: https://ed.ted.com/lessons/the-science-of-laughter-sasha-winkler/digdeeper

Animator's website: https://vimeo.com/hannarybak, https://www.behance.net/hanna_rybak, https://www.instagram.com/hannarybak_
Music: https://www.instagram.com/fazfarkas
Sound design: https://yessian.com
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Thank you so much to our patrons for your support! Without you this video would not be possible! Khalifa Alhulail, Martin Stephen, Jose Henrique Leopoldo e Silva, Mandeep Singh, Abhijit Kiran Valluri, 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 and Edgardo Cuellar.

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Explore how the offspring of parasitic butterflies trick their way into ant colonies for food and protection.

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You might not guess it, but Alcon blue butterflies are just one of over 200 parasitic butterfly species, all of which target ants. And their offspring live highly unusual lives, tricking their way into ant colonies using mimicry. So, how do these butterflies do it— and why? Francesa Barbero explores the strategies caterpillars use to survive among ants on their journey to become butterflies.

Lesson by Francesca Barbero, directed by Raghav Arumugam, Jagriti Khirwar.

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View full lesson: https://ed.ted.com/lessons/would-you-raise-the-baby-that-ate-your-siblings-francesca-barbero
Dig deeper with additional resources: https://ed.ted.com/lessons/would-you-raise-the-baby-that-ate-your-siblings-francesca-barbero/digdeeper

Animator's website: https://www.raghavarumugam.com & https://www.jagritikhirwar.com
Music: https://www.campstudio.co
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Thank you so much to our patrons for your support! Without you this video would not be possible! OnlineBookClub.org, Eric Shear, Leith Salem, Omar Hicham, Adrian Rotaru, Brad Sullivan, Karen Ho, Niklas Frimberger, Hunter Manhart, Nathan Nguyen, Igor Stavchanskiy, James R DeVries, Grace Huo, Diana Huang, Chau Hong Diem, Orlellys Torre, Corheu, Thomas Mee, Maryann H McCrory, Blas Borde, John Hellmann, Poompak Meephian, Chuck Wofford, Adam Pagan, Wes Winn, Conder Shou, ntiger, Noname, Hansan Hu, David D, Mac Hyney, Keith Ellison, robin valero walters, Lynne Truesdale, Gatsby Dkdc, Matthew Neal, Denis Chon, Julian Oberhofer, Monte Carroll, Eddy, Jay M, Constantino Victor Delgado, Andrea Galvagni, Andrew Tweddle, Laurel-Ann Rice, Fernando A. Endo, Helen Lee, pam morgan, sarim haq and Gerardo Castro.

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View full lesson: http://ed.ted.com/lessons/euclid-s-puzzling-parallel-postulate-jeff-dekofsky

Euclid, known as the "Father of Geometry," developed several of modern geometry's most enduring theorems--but what can we make of his mysterious fifth postulate, the parallel postulate? Jeff Dekofsky shows us how mathematical minds have put the postulate to the test and led to larger questions of how we understand mathematical principles.

Lesson by Jeff Dekofsky, animation by The Leading Sheep Studios.

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