Dig into the science of how microwave ovens use electromagnetic waves to heat your food, and what you should avoid cooking in them.

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In 1945, engineer Percy Spencer was standing near a RADAR device that produced high-intensity microwaves and noticed that his candy bar had melted. He then exposed popcorn kernels to the magnetron device, and sure enough, they popped. Soon after, the first microwave oven became available, using the very same technology. So, how does it work? Aaron Slepkov explores the science of microwave ovens.

Lesson by Aaron Slepkov, directed by Yuriy Polyashko, Darvideo Animation Studio.

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View full lesson: https://ed.ted.com/lessons/why-can-t-you-put-metal-in-a-microwave-aaron-slepkov
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Animator's website: https://darvideo.tv
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Thank you so much to our patrons for your support! Without you this video would not be possible! Nevin Spoljaric, Sid Chanpuriya, Anoop Varghese, David Yastremski, Noah Webb, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Jesse Lira, Ezekiel Raui, Petr Vacek, Dennis, Olivia Fu, Kari Teffeau, Cindy Lai, Rajath Durgada Manjunath, Dan Nguyen, Chin Beng Tan, Tom Boman, Karen Warner, Iryna Panasiuk, Aaron Torres, Eric Braun, Sonja Worzewski, Michael Clement, Adam Berry, Ghaith Tarawneh, Nathan Milford, Tomas Beckett, Alice Ice, Eric Berman, Kurt Paolo Sevillano, Jennifer Heald, Megulo Abebe, isolwi, Kate Sem, Ujjwal Dasu, Angel Alberici, Minh Quan Dinh, Sylvain, Terran Gimpel, Talia Sari, Katie McDowell, Allen, Mahina Knuckles, Charmaine Hanson and Thawsitt.

Why can't you put metal in a microwave? - Aaron Slepkov

Download the Audible Original podcast “Moriarty: The Silent Order” and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed 

--

One day in the fall, you called upon your friend, Sherlock Holmes, and found him in conversation with Jabez Wilson. Wilson had been working for the mysterious League of Red-Headed Men. Today, he arrived at work to find the group had disappeared, and now turns to Holmes to make sense of the events. Follow the detective and see if you can solve this adaptation of one of Sherlock’s most famous cases.

Lesson by Alex Rosenthal, directed by Skirmanta Jakaitė, Art Shot.

This video made possible in collaboration with Audible
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Sherlock Holmes and the case of the Red-Headed League - Alex Rosenthal

Trace the rise and fall of the Mughal Empire, which became one of the wealthiest and most powerful states in the early modern world.

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Though he was descended from some of the world’s most successful conquerors, Babur struggled to gain a foothold among the many other ambitious princes in Central Asia. So he turned his attention to India, where his descendants stayed and built the Mughal Empire. Stephanie Honchell Smith details the rise and fall of one of the wealthiest and most powerful states in the early modern world.

Lesson by Stephanie Honchell Smith, directed by Raghav Arumugam, Jagriti Khirwar.

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Animator's website: https://www.raghavarumugam.com & https://www.jagritikhirwar.com
Music: https://www.campstudio.co
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The rise and fall of the Mughal Empire - Stephanie Honchell Smith

Explore the current limitations of artificial intelligence and the possibility of creating human-compatible technology.

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In the coming years, artificial intelligence is probably going to change your life— and likely the entire world. But people have a hard time agreeing on exactly how AI will affect our society. Can we build AI systems that help us fix the world? Or are we doomed to a robotic takeover? Explore the limitations of artificial intelligence and the possibility of creating human-compatible technology.

This video is based on interview excerpts from the Radio Davos Podcast. The episode is called, “The promises and perils of AI - Stuart Russell on Radio Davos”. 
Listen to the full episode here: https://www.weforum.org/agenda/2022/01/artificial-intelligence-stuart-russell-radio-davos

Directed by Christoph Sarow, AIM Creative Studios.

This video made possible in collaboration with World Economic Forum
Learn more about how TED-Ed partnerships work: https://bit.ly/TEDEdPartners

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Animator's website: http://aimcreativestudios.com  
Music: https://soundcloud.com/aim-music
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Thank you so much to our patrons for your support! Without you this video would not be possible! 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, Olha Bahatiuk, Jesús Bíquez Talayero, Chels Raknrl, Sai Pranavi Jonnalagadda, Stuart Rice, Jing Chen, Vector-Dopamine math, Jasper Song, Giorgio Bugnatelli, Chardon, Eddy Trochez and OnlineBookClub.org.

How will AI change the world?

Dig into different strategies that can improve your listening skills so you can become a high quality listener.

--

It’s easy to tell when someone’s not paying attention, but it can be surprisingly tricky to know what good listening looks like. Good listening is one of the most important things we can do to improve our relationships, develop our worldview, and potentially change people’s minds. So what can we do to become better listeners? Dig into different strategies that can improve your listening skills.

Directed by Maryna Buchynska, and action agency.

This video made possible in collaboration with Character Lab
Learn more about how TED-Ed partnerships work: https://bit.ly/TEDEdPartners

A special thanks to Guy Itzchakov and Harry Reis who provided information and insights for the development of this video.

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View full lesson: https://ed.ted.com/lessons/4-things-all-great-listeners-know
Dig deeper with additional resources: https://ed.ted.com/lessons/4-things-all-great-listeners-know#digdeeper

Animator's website: https://www.and-action.net
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Thank you so much to our patrons for your support! Without you this video would not be possible! 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, Gerardo Castro, Michel-Ange Hortegat, Enes Kirimi, Amaury BISIAUX, ND, Samyogita Hardikar, Vanessa Graulich, Vandana Gunwani, Abdulmohsin Almadi, AJ Lyon, Geoffrey Bultitude, Mi Mi, Thomas Rothert, Brian Elieson, Oge O, Weronika Falkowska, Nevin Spoljaric, Sid Chanpuriya, Anoop Varghese, David Yastremski, Noah Webb, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Jesse Lira, Ezekiel Raui, Petr Vacek, Dennis, Olivia Fu, Kari Teffeau, Cindy Lai, Rajath Durgada Manjunath and Dan Nguyen.

4 things all great listeners know

View full lesson: http://ed.ted.com/lessons/how-do-carbohydrates-impact-your-health-richard-j-wood

The things we eat and drink on a daily basis can impact our health in big ways. Too many carbohydrates, for instance, can lead to insulin resistance, which is a major contributor to cardiovascular disease and Type 2 Diabetes. But what are carbs, exactly? And what do they do to our bodies? Richard J. Wood explains.

Lesson by Richard J. Wood, animation by Qa'ed Mai.

How do carbohydrates impact your health? - Richard J. Wood

View full lesson: http://ed.ted.com/lessons/what-is-a-calorie-emma-bryce

We hear about calories all the time: How many calories are in this cookie? How many are burned by doing 100 jumping jacks, or long-distance running, or fidgeting? But what is a calorie, really? And how many of them do we actually need? Emma Bryce explains how a few different factors should go into determining the recommended amount for each person.

Lesson by Emma Bryce, animation by  Qa'ed Mai.

What is a calorie? - Emma Bryce

Physicist Brian Greene explains superstring theory, the idea that minuscule strands of energy vibrating in 11 dimensions create every particle and force in the universe. 

View full lesson: http://ed.ted.com/lessons/brian-greene-on-string-theory

Talk by Brian Greene.

TED-Ed Transcript on Youtube