TED-Ed

Practice more problem-solving at https://brilliant.org/TedEd/
Solution to Bonus Riddle: https://brilliant.org/TedEdRuby/

Uploaded 25-10-18

Townspeople are demanding that a corrupt merchant’s collection of 30 rubies be confiscated to reimburse the victims of his schemes. The king announces that the fine will be determined through a game of wits between the merchant and the king’s most clever advisor – you. Can you outfox the merchant and win back the greatest amount of rubies to help his victims? Dennis Shasha shows how.

Lesson by Dennis Shasha, directed by Artrake Studio.

Thank you so much to our patrons for supporting us on Patreon! Without you this video would not be possible! Sydney Evans, Victor E Karhel, Eysteinn Guðnason, Andrea Feliz, Natalia Rico, Josh Engel, Bárbara Nazaré, Zhexi Shan, PnDAA, Sandra Tersluisen, Ellen Spertus, Fabian Amels, sammie goh, Mattia Veltri, Quentin Le Menez, Yuh Saito, Heather Slater, Dr Luca Carpinelli, Christophe Dessalles, Arturo De Leon, Eduardo Briceño, Ricardo Paredes, David Douglass, Grant Albert, Jen, Megan Whiteleather, Mayank Kaul, Ryohky Araya, Tan YH, Ph.D., Brittiny Elman, Kostadin Mandulov, Yanuar Ashari, Mrinalini , Anthony Kudolo, Querida Owens, Hazel Lam, Manav parmar, Siamak H, Dominik Kugelmann, Mary Sawyer, David Rosario, Samuel Doerle, Susan Herder, Prasanth Mathialagan, Yanira Santamaria, Dawn Jordan, Constantin Salagor, Kevin Wong and Umar Farooq.



Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices

Get to know one of the most infamous scientific rivalries in history, known as the Bone Wars, where two scientists competed to find dinosaur fossils.

Uploaded 13-07-21

--

After the California Gold Rush of 1848, settlers streamed west to strike it rich. In addition to precious metals, they unearthed another treasure: dinosaur bones. Two wealthy scientists in particular— Othniel Charles Marsh and Edward Drinker Cope— competed to uncover these prehistoric monsters. Lukas Rieppel digs into one of the most notorious scientific feuds in history, known as the Bone Wars.

Lesson by Lukas Rieppel, directed by Michael Kalopaidis, Zedem Media.

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-bone-wars-the-most-notorious-scientific-feud-in-history-lukas-rieppel
Dig deeper with additional resources: https://ed.ted.com/lessons/the-bone-wars-the-most-notorious-scientific-feud-in-history-lukas-rieppel#digdeeper

Animator's website: https://www.zedemanimations.com
----------------------------------------------

Thank you so much to our patrons for your support! Without you this video would not be possible! Kate Sem, VPpurplebelt, Ujjwal Dasu, Theunis Groenewald, Minh Quan Dinh, Sylvain, Can Aydogmus, JasonD, Terran Gimpel, Gareth Thomas, Talia Sari, Phan Quang Lam, Katie McDowell, Allen, Sarat Chandra Vegunta, Mahina Bachiller, Bruce Vieira Lopes, Charmaine Hanson, Paul Aldred-Bann, Thawsitt, Jezabel, Abdullah Abdulaziz, Adriano Fontes, Xiao Yu, Melissa Suarez, SpartacusDMR, Brian A. Dunn, Francisco Amaya, Daisuke Goto, Matt Switzler, Leonardo Monrroy, Sumedh Ghaisas, Maryam, Bethany Connor, Jeremy Shimanek, Mark Byers, Avinash Amarnath, Xuebicoco, Rare Media, Rayo, Po Foon Kwong, NinjaBoffin, Jesse Jurman, Josue Perez Miranda, Scott Markley, Elija Peterson, Ovidiu Mrd, Xavier dupont, paul g mohney and Aravind Battaje.



Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices

Today medical scans produce thousands of images and terabytes of data for a single patient in mere seconds, but how do doctors parse this information and determine what's useful? In this talk, scientific visualization expert Anders Ynnerman shows us sophisticated new tools -- like virtual autopsies -- for analyzing this myriad data, and a glimpse at some sci-fi-sounding medical technologies in development. This talk contains some graphic medical imagery. (Filmed at TEDxGöteborg.)

Uploaded 10-07-13

Talk by Anders Ynnerman.



Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: http://ed.ted.com/lessons/the-moon-illusion-andrew-vanden-heuvel

Uploaded 03-09-13

Have you noticed how the full moon looks bigger on the horizon than high overhead? Actually, the two images are exactly the same size -- so why do we perceive them differently? Scientists aren't sure, but there are plenty of intriguing theories. Andrew Vanden Heuvel unravels the details of focus, distance and proportion that contribute to this mystifying optical illusion.

Lesson by Andrew Vanden Heuvel, animation by Kozmonot Animation Studio.



Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices

Explore the strategies employed by trolls and learn how disinformation campaigns are launched— and how to stop them.

Uploaded 29-10-20

--

Your town is holding a mayoral election and the stakes have never been higher. You suspect one of the candidates will begin pushing false information to swing the election. As the cybersecurity expert, your job is to inoculate the townspeople against false information. First, you must learn the strategies of disinformation trolls. Claire Wardle explores the tactics of disinformation campaigns.

Lesson by Claire Wardle, directed by Gavin Edwards.

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/can-you-outsmart-a-troll-by-thinking-like-one-claire-wardle
Dig deeper with additional resources: https://ed.ted.com/lessons/can-you-outsmart-a-troll-by-thinking-like-one-claire-wardle#digdeeper
2019 disinformation study: http://bit.ly/2019DisinfoStudy
Online disinformation game: http://bit.ly/DisinformationGame

Animator's website: https://www.movult.com/
Educator's website: https://clairewardle.com/
Claire Wardle is the US Director of First Draft, a non-profit that works globally to empower people with knowledge and tools to build resilience against harmful, false, and misleading information. Check out First Draft here: https://firstdraftnews.org/
----------------------------------------------

Thank you so much to our patrons for your support! Without you this video would not be possible! Katrina Harding, Gerald Onyango, alessandra tasso, Astia Rizki Safitri, Côme Vincent, Antony Lee, Melissa Sorrells, Rakshit Kothari, Doreen Reynolds-Consolati, Simon Holst Ravn, 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 and Sid.



Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: http://ed.ted.com/lessons/vs-ramachandran-the-neurons-that-shaped-civilization

Uploaded 31-08-13

Neuroscientist Vilayanur Ramachandran outlines the fascinating functions of mirror neurons. Only recently discovered, these neurons allow us to learn complex social behaviors, some of which formed the foundations of human civilization as we know it.

Talk by VS Ramachandran.



Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices

Discover the medieval empire of the Isle of Man and the Hebrides, and how a dynasty of sea kings rose to power.

Uploaded 22-07-21

--

On a small island in the Irish Sea, fortresses preside over the rugged shores. This unlikely location was the birthplace of a medieval empire that lasted 200 years. Rulers built coastal fortresses on cliffs, roved the seaways, and threw themselves into epic battles to consolidate control over an impressive maritime kingdom. Andrew McDonald uncovers this forgotten dynasty of sea kings.

Lesson by Andrew McDonald, directed by WOW-HOW Studio.

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-rise-and-fall-of-the-kingdom-of-man-andrew-mcdonald
Dig deeper with additional resources: https://ed.ted.com/lessons/the-rise-and-fall-of-the-kingdom-of-man-andrew-mcdonald#digdeeper

Animator's website: https://wow-how.com
----------------------------------------------

Thank you so much to our patrons for your support! Without you this video would not be possible! Lyn-z Schulte, Elaine Fitzpatrick, Karthik Cherala, Clarence E. Harper Jr., Clarissa Bartolini-Toro, Vignan Velivela, Ana Maria, 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, Pavel Zalevskiy, Karen Goepen-Wee, Filip Dabrowski, Barbara Smalley, Megan Douglas, Tim Leistikow, Renhe Ji, Maya Toll, Ka-Hei Law, Hiroshi Uchiyama, Mark Morris, Misaki Sato, EdoKun , Boytsov Ilya, SookKwan Loong, Bev Millar, Lex Azevedo, Noa Shore, sarim haq, Kyle Nguyen, Jason A Saslow, MJ Tan Mingjie, Dawn Jordan, Prasanth Mathialagan, Samuel Doerle, David Rosario, Siamak H, Manav parmar and David Lucsanyi.



Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices

Dig into the biggest problems facing our current plastic recycling process, and explore potential solutions to these systems.

--

If you’ve ever looked at the bottom of a disposable bottle or cup, you’ve probably noticed a recycling symbol. Seeing this, many people assume the item should be put in a recycling bin. Yet many plastics are incapable of being recycled at most centers. In fact, only 9% is recycled each year. So why are so few plastics recycled? And what do these symbols actually mean? Shannon Odell investigates.

Lesson by Shannon Odell, directed by Yuval Haker, Alon Sivan.

This video made possible in collaboration with Speed & Scale
Learn more about how TED-Ed partnerships work: https://bit.ly/TEDEdPartner

A special thanks to Rebecca Altman who provided information and insights for the development of this video.

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/does-recycling-your-plastic-actually-work-shannon-odell
Dig deeper with additional resources: https://ed.ted.com/lessons/does-recycling-your-plastic-actually-work-shannon-odell#digdeeper

Animator's website: https://yuvalhaker.com & https://www.alonsiv.com
Music: http://danaroth.art/index.html
----------------------------------------------

Thank you so much to our patrons for your support! Without you this video would not be possible! Jeremy Shimanek, Mark Byers, Avinash Amarnath, Xuebicoco, Rayo, Po Foon Kwong, Boffin, Jesse Jurman, Scott Markley, Elija Peterson, Ovidiu Mrd, paul g mohney, Steven Razey, Nathan Giusti, Helen Lee, Anthony Benedict, Karthik Balsubramanian, Annastasshia Ames, Amy Lopez, Vinh-Thuy Nguyen, Liz Candee, Ugur Doga Sezgin, Karmi Nguyen, John C. Vesey, Yelena Baykova, Nick Johnson, Carlos H. Costa, Jennifer Kurkoski, Ryan B Harvey, Akinola Emmanuel, Jose Arcadio Valdes Franco, Sebastiaan Vleugels, Karl Laius, JY Kang, Abhishek Goel, Heidi Stolt, Nicole Sund, Karlee Finch, Mario Mejia, Denise A Pitts, Doug Henry, Keven Webb, Mihai Sandu, Deepak Iyer and Javid Gozalov.

Learn more about your ad choices. Visit megaphone.fm/adchoices

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.

Uploaded 09-08-13

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

Talk by Brian Greene.



Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices

Follow Maxo, a warrior of the Chimu Empire, as he navigates the Inca-conquered streets of Chan Chan to receive a secret message.

--

It’s daybreak in the city of Chan Chan, and former soldier Maxo has been up all night fretting. Last night, a friend stopped by and instructed him to go to the plaza at noon to receive an important message. But with the recent defeat of their army and the overthrow of the king, answering this mysterious summons will be dangerous. Gabriel Prieto outlines a day in the life of a Chimu warrior.

Lesson by Gabriel Prieto, directed by Qian Shi.

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-conspiracy-to-take-down-the-inca-empire-gabriel-prieto
Dig deeper with additional resources: https://ed.ted.com/lessons/the-conspiracy-to-take-down-the-inca-empire-gabriel-prieto#digdeeper

Animator's website: https://www.qianshi.art
Music: https://www.tschernuth.com
----------------------------------------------

Thank you so much to our patrons for your support! Without you this video would not be possible! Heidi Stolt, Nicole Sund, Karlee Finch, Mario Mejia, Denise A Pitts, Doug Henry, Keven Webb, Mihai Sandu, Deepak Iyer, Javid Gozalov, Kyanta Yap, Rebecca Reineke, William Biersdorf, Patricia Alves Panagides, Yvette Mocete, Cyrus Garay, Samuel Barbas, LadyGeek, Marin Kovachev, Penelope Misquitta, Hans Peng, Gaurav Mathur, Erik Biemans, Tony, Michelle, Katie and Josh Pedretti, Hoai Nam Tran, Kack-Kyun Kim, Michael Braun-Boghos, zjweele13, Anna-Pitschna Kunz, Edla Paniguel, Thomas Mungavan, Jaron Blackburn, Venkat Venkatakrishnan, ReuniteKorea, Aaron Henson, Rohan Gupta, Begum Tutuncu, Brian Richards, Jørgen Østerpart, Tyron Jung, Carsten Tobehn, Katie Dean, Ezgi Yersu, Gerald Onyango, alessandra tasso, Doreen Reynolds-Consolati, Manognya Chakrapani, Ayala Ron, Eunsun Kim and Phyllis Dubrow.

Learn more about your ad choices. Visit megaphone.fm/adchoices