A reality check on renewables - David MacKay

You could have a secret twin (but not the way you think) - Kayla Mandel Sheets

Download a free audiobook version of “The Vanishing Half“ and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed [https://www.audible.com/ted-ed] -- While searching for a kidney donor, Karen Keegan stumbled upon a mystery. After undergoing genetic testing, it turned out that some of her cells had a completely different set of genes from the others. And this second set of genes belonged to her twin sister— who had never been born. How did this happen? Kayla Mandel Sheets explores the condition known as chimerism. Lesson by Kayla Mandel Sheets, directed by Luísa M H Copetti, Hype CG. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon [http://bit.ly/TEDEdPatreon] Check out our merch: http://bit.ly/TEDEDShop [http://bit.ly/TEDEDShop] ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter [http://bit.ly/TEDEdNewsletter] Follow us on Facebook: http://bit.ly/TEDEdFacebook [http://bit.ly/TEDEdFacebook] Find us on Twitter: http://bit.ly/TEDEdTwitter [http://bit.ly/TEDEdTwitter] Peep us on Instagram: http://bit.ly/TEDEdInstagram [http://bit.ly/TEDEdInstagram] ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/you-could-have-a-secret-twin-but-not-the-way-you-think-kayla-mandel-sheets [https://ed.ted.com/lessons/you-could-have-a-secret-twin-but-not-the-way-you-think-kayla-mandel-sheets] Dig deeper with additional resources: https://ed.ted.com/lessons/you-could-have-a-secret-twin-but-not-the-way-you-think-kayla-mandel-sheets#digdeeper [https://ed.ted.com/lessons/you-could-have-a-secret-twin-but-not-the-way-you-think-kayla-mandel-sheets#digdeeper] Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/the-vanishing-half [https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/the-vanishing-half] Animator's website: https://www.luisacopetti.com [https://www.luisacopetti.com] and https://www.hype.cg [https://www.hype.cg] ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Noa Shore, Jason A Saslow, MJ Tan Mingjie, Dawn Jordan, Prasanth Mathialagan, Samuel Doerle, David Rosario, Siamak H, Manav parmar, Ryohky Araya, Mayank Kaul, Christophe Dessalles, Heather Slater, Sandra Tersluisen, Zhexi Shan, Bárbara Nazaré, Andrea Feliz, Victor E Karhel, Sydney Evans, Latora Slydell, Noel Situ, emily lam, Sid, Kent Logan, Alexandra Panzer, David D, Zuko Gameplays, Jonathan Bates JBZ, Aria Smith, Mac Hyney, Keith Ellison, robin valero walters, Camehira, Lynne Truesdale, Gatsby Dkdc, Matthew Neal, Jayson Gasper Ayson, Jayson Murray, Maxwell Ramsby, Dmitry Yuryev, Kitick, Denis Chon, Julian Oberhofer, Monte Carroll, Eddy, Jay M, Constantino Victor Delgado, Andrea Galvagni, Andrew Tweddle and Laurel-Ann Rice. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

HIV and flu -- the inoculation strategy - Seth Berkley

View full lesson: http://ed.ted.com/lessons/hiv-and-flu-the-vaccine-strategy-seth-berkley [http://ed.ted.com/lessons/hiv-and-flu-the-vaccine-strategy-seth-berkley] Seth Berkley explains how smart advances in vaccine design, production and distribution are bringing us closer than ever to eliminating a host of global threats -- from AIDS to malaria to flu pandemics. Talk by Seth Berkley. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

The Nazis recruited to succeed in the Cold War - Brian Crim

Dig into Operation Paperclip, a secret intelligence program which brought scientists from Nazi Germany to the US after WWII. -- In May of 1945 the Third Reich was in chaos. Adolf Hitler was dead and German surrender was imminent. But while World War II was almost over, a new war was brewing. And the US was eager to recruit the smartest minds in Germany before the Soviets got the chance— regardless of their affiliation with the Nazis. This became known as Operation Paperclip. Brian Crim digs into the clandestine campaign. Lesson by Brian Crim, directed by Jeff Le Bars, JetPropulsion.space. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon [http://bit.ly/TEDEdPatreon] Check out our merch: http://bit.ly/TEDEDShop [http://bit.ly/TEDEDShop] ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter [http://bit.ly/TEDEdNewsletter] Follow us on Facebook: http://bit.ly/TEDEdFacebook [http://bit.ly/TEDEdFacebook] Find us on Twitter: http://bit.ly/TEDEdTwitter [http://bit.ly/TEDEdTwitter] Peep us on Instagram: http://bit.ly/TEDEdInstagram [http://bit.ly/TEDEdInstagram] ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/the-program-that-brought-nazis-to-america-brian-crim [https://ed.ted.com/lessons/the-program-that-brought-nazis-to-america-brian-crim] Dig deeper with additional resources: https://ed.ted.com/lessons/the-program-that-brought-nazis-to-america-brian-crim/digdeeper [https://ed.ted.com/lessons/the-program-that-brought-nazis-to-america-brian-crim/digdeeper] Animator's website: https://jetpropulsion.space [https://jetpropulsion.space] ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! 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, 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 and Talia Sari. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

The contrast between classical and operant conditioning - Peggy Andover

View full lesson: http://ed.ted.com/lessons/the-difference-between-classical-and-operant-conditioning-peggy-andover [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. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Visualize a perfect society. What does it resemble? - Joseph Lacey

Dig into political philosopher John Rawls’ classic thought experiment about what principles we need to design a fair society. -- A group of strangers have gathered to design a just society. To ensure none of them rig the system, they’ve been placed under a veil of ignorance. Under this veil, they’re blind to information about age, sex, profession, wealth, religion, and so on. Can they build a fair society where everyone has the resources they need? Joseph Lacey details John Rawls' classic thought experiment. Lesson by Joseph Lacey, directed by Eoin Duffy. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon [http://bit.ly/TEDEdPatreon] Check out our merch: http://bit.ly/TEDEDShop [http://bit.ly/TEDEDShop] ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter [http://bit.ly/TEDEdNewsletter] Follow us on Facebook: http://bit.ly/TEDEdFacebook [http://bit.ly/TEDEdFacebook] Find us on Twitter: http://bit.ly/TEDEdTwitter [http://bit.ly/TEDEdTwitter] Peep us on Instagram: http://bit.ly/TEDEdInstagram [http://bit.ly/TEDEdInstagram] ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/3-easy-steps-to-build-a-real-utopia-joseph-lacey [https://ed.ted.com/lessons/3-easy-steps-to-build-a-real-utopia-joseph-lacey] Dig deeper with additional resources: https://ed.ted.com/lessons/3-easy-steps-to-build-a-real-utopia-joseph-lacey/think [https://ed.ted.com/lessons/3-easy-steps-to-build-a-real-utopia-joseph-lacey/think] Animator's website: https://eoinduffy.me [https://eoinduffy.me] ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Katie McDowell, Allen, Mahina Knuckles, Charmaine Hanson, Thawsitt, Jezabel, Abdullah Abdulaziz, Xiao Yu, Melissa Suarez, Brian A. Dunn, Francisco Amaya, Daisuke Goto, Matt Switzler, Peng, Tzu-Hsiang, Bethany Connor, 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 and Abhishek Goel. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]