What’s a smartphone made of? - Kim Preshoff

View full lesson: http://ed.ted.com/lessons/we-need-to-talk-about-an-injustice-bryan-stevensonIn an engaging and personal talk -- with cameo appearances from his grandmother and Rosa Parks -- human rights lawyer Bryan Stevenson shares some hard truths about America's justice system, starting with a massive imbalance along racial lines: a third of the country's black male population has been incarcerated at some point in their lives. These issues, which are wrapped up in America's unexamined history, are rarely talked about with this level of candor, insight and persuasiveness. Talk by Bryan Stevenson. Learn more about your ad choices. Visit megaphone.fm/adchoices

Download a free audiobook version of "Children of Time" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-edUploaded 19-10-20Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/children-of-time--Imagine a distant future when humans reach beyond Earth, forge cities on planets thousands of light-years away, and maintain a galactic web of trade and transport. What would it take to make that leap? And where would we get enough energy to power that civilization? Fabio Pacucci explores the possibility of harnessing energy from a black hole to power a galactic civilization.Lesson by Fabio Pacucci, directed by TOTEM Studio.Animator's website: http://franco-barroeta.squarespace.comSign up for our newsletter: http://bit.ly/TEDEdNewsletterSupport us on Patreon: http://bit.ly/TEDEdPatreonFollow us on Facebook: http://bit.ly/TEDEdFacebookFind us on Twitter: http://bit.ly/TEDEdTwitterPeep us on Instagram: http://bit.ly/TEDEdInstagramView full lesson: https://ed.ted.com/lessons/could-we-harness-the-power-of-a-black-hole-fabio-pacucciThank you so much to our patrons for your support! Without you this video would not be possible! Lawrence Teh Swee Kiang, BRENDAN NEALE, Jane White, Karmi Nguyen, John C. Vesey, Yelena Baykova, Harshita Jagdish Sahijwani, Won Jang, Nick Johnson, Tariq Keblaoui, Carlos H. Costa, Eimann P. Evarola, Aleksandr Lyozin, Mohamed Elsayed, Alan Wilder, Marcus Appelbaum, Francisco Leos, Kevin O'Leary, Les Howard, Ten Cha, Mehmet Yusuf Ertekin, Arlene Weston, phkphk123321, Jennifer Kurkoski, Ryan B Harvey, Austin Randall, Abhishek Bansal, Jayant Sahewal, Dian Atamyanov, igor romanenko, Jose Arcadio Valdes Franco, Brandy Sarver, Guy Hardy, Tu-Anh Nguyen, Karl Laius, Madee Lo, JY Kang, Marc Bou Zeid, Abhishek Goel, Charles A Hershberger, Coenraad Keuning, Robert Seik, Heidi Stolt, Alexis Hevia, Todd Gross, Brady Jones, Christina Salvatore, Zhong Ming Zenny Tan, Karisa Caudill and Bruno Pinho. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

Check out our Patreon page: https://www.patreon.com/tededUploaded 18-09-18View full lesson: https://ed.ted.com/lessons/why-should-you-read-edgar-allan-poe-scott-peeplesThe prisoner strapped under a descending pendulum blade. A raven who refuses to leave the narrator’s chamber. A beating heart buried under the floorboards. Poe’s macabre and innovative stories of gothic horror have left a timeless mark on literature. But just what is it that makes Edgar Allan Poe one of the greatest American authors? Scott Peeples investigates. Lesson by Scott Peeples, directed by Compote Collective.Thank you so much to our patrons for your support! Without you this video would not be possible! Vignan Velivela, Ibel Wong, Ahmad Hyari, Eden Sher, Travis Wehrman, Louisa Lee, Hoang Viet, Nathan A. Wright, Аркадий Скайуокер, Ashley Maldonado, Clarence E. Harper Jr., Bojana Golubovic, Karthik Cherala, Violeta Cervantes, Elaine Fitzpatrick, Lyn-z Schulte, cnorahs , Henrique Sorín' Cassús, Tim Robinson, Jun Cai, Paul Schneider, Amber Wood, Ophelia Gibson Best, Michelle Stevens-Stanford, Phyllis Dubrow, Andreas Voltios, Eunsun Kim, Philippe Spoden, Samantha Chow, Armando Ello, Ayala Ron, Manognya Chakrapani, Doreen Reynolds-Consolati, Melissa Sorrells, Antony Lee, Husain Mohammad, Côme Vincent, Astia Rizki Safitri, Alan Froese, alessandra tasso, Gerald Onyango, Katrina Harding, Ezgi Yersu, Katie Dean, Kin Lon Ma, Carsten Tobehn, Jeremy Fryd, Charlene You and Carolyn Corwin. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

Dig into the Chinese Exclusion Act of 1882, which suspended Chinese immigration to the U.S. and blocked Chinese immigrants from citizenship.Uploaded 01-07-21--In 1882, the United States Congress passed the Chinese Exclusion Act, the first federal law that restricted immigration based explicitly on nationality. In practice, the Act banned entry to all ethnically Chinese immigrants besides diplomats, and prohibited existing immigrants from obtaining citizenship. Robert Chang details the lasting impact the Act had on immigrant rights and freedoms.Lesson by Robert Chang, directed by Mohammad Babakoohi and Yijia Cao.Support Our Non-Profit Mission----------------------------------------------Support us on Patreon: http://bit.ly/TEDEdPatreonCheck out our merch: http://bit.ly/TEDEDShop----------------------------------------------Connect With Us----------------------------------------------Sign up for our newsletter: http://bit.ly/TEDEdNewsletterFollow us on Facebook: http://bit.ly/TEDEdFacebookFind us on Twitter: http://bit.ly/TEDEdTwitterPeep us on Instagram: http://bit.ly/TEDEdInstagram----------------------------------------------Keep Learning----------------------------------------------View full lesson: https://ed.ted.com/lessons/the-dark-history-of-the-chinese-exclusion-act-robert-changDig deeper with additional resources: https://ed.ted.com/lessons/the-dark-history-of-the-chinese-exclusion-act-robert-chang#digdeeper----------------------------------------------Thank you so much to our patrons for your support! Without you this video would not be possible! Aravind C V, ND, Samyogita Hardikar, Vanessa Graulich, Vandana Gunwani, LvL042, Abdulmohsin Almadi, Andrew Brodski, John van den Berg, Anandha Krishnan, Geoffrey Bultitude, Mi Mi, Thomas Rothert, Christopher McVay, Izhari Ishak Aksa, Declan Manning, Javier Aldavaz, Ivan Yeung, Jaime Camacho, Irene Au, Роман Валесюк, LunarQueen, Iza, Brian Elieson, Paul , Grayson Garbarino, Oge O, Weronika Falkowska, Stefano Esposito, Nevin Spoljaric, Yvonne Feijoo, Sid Chanpuriya, Arjay Arcinue Dineros, Anoom Yasmin, Laura Johnson, Anoop Varghese, David Yastremski, Zoë Tulip, B, Jason Harrison, Erica Guerrero, Richard Manklow, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Milo Vermeulen and Ryan Weiler. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

Dig into why jellyfish populations have increased, and how leatherback sea turtles can help get their numbers under control.--Over the past two decades, jellyfish have begun to overwhelm our oceans. If things stay on their current trajectory, we could be headed for a future where the entire ocean is thick with jellyfish. So, is there anything that can keep these gelatinous creatures under control? Mariela Pajuelo and Javier Antonio Quinones take a look at the jellyfish’s most ancient predator.Lesson by Mariela Pajuelo and Javier Antonio Quinones, directed by Sinan Göksel, Emre Kanlıoğlu, Studio Big Box.Support Our Non-Profit Mission----------------------------------------------Support us on Patreon: http://bit.ly/TEDEdPatreonCheck out our merch: http://bit.ly/TEDEDShop----------------------------------------------Connect With Us----------------------------------------------Sign up for our newsletter: http://bit.ly/TEDEdNewsletterFollow us on Facebook: http://bit.ly/TEDEdFacebookFind us on Twitter: http://bit.ly/TEDEdTwitterPeep us on Instagram: http://bit.ly/TEDEdInstagram----------------------------------------------Keep Learning----------------------------------------------View full lesson: https://ed.ted.com/lessons/the-one-thing-stopping-jellyfish-from-taking-over-mariela-pajuelo-javier-antonio-quinonesDig deeper with additional resources: https://ed.ted.com/lessons/the-one-thing-stopping-jellyfish-from-taking-over-mariela-pajuelo-javier-antonio-quinones#digdeeperAnimator's website: https://www.studiobigbox.com----------------------------------------------Thank you so much to our patrons for your support! Without you this video would not be possible! Vector-Dopamine math, Jasper Song, Giorgio Bugnatelli, Chardon, Eddy Trochez, 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 and Laurel-Ann Rice. Learn more about your ad choices. Visit megaphone.fm/adchoices