Can you solve the alien probe riddle? - Dan Finkel

Discover history’s first empire: Sumer, located in Mesopotamia, which built the world’s first cities and created the first writing system.Uploaded 15-10-20--History’s first empire rose out of a hot, dry landscape, without rainfall to nourish crops, without trees or stones for building. In spite of all this, its inhabitants built the world’s first cities, with monumental architecture and large populations— and they built them entirely out of mud. Soraya Field Fiorio details the rise and fall of the Sumerian empire.Lesson by Soraya Field Fiorio, directed by Tomás Pichardo-Espaillat.Animator's website: http://www.tomatico.net/Sign 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/the-rise-and-fall-of-history-s-first-empire-soraya-field-fiorioThank you so much to our patrons for your support! Without you this video would not be possible! Leen Mshasha, Mariana Ortega, Danny Romard, James Bruening, Ricki Daniel Marbun, Malcolm Callis, Sabrina Gonzalez, Al the Scottish Wildcat, سلطان الخليفي, Alexander Walls, Della Palacios, Vik Nagjee, Hiroshi Uchiyama, Adi V, Andrew Bosco, Craig Sheldon, Rishi Pasham, Joanne Luce, Jason A Saslow, Mary Sawyer, Scott Gass, Ruth Fang, Mayank Kaul, Kathryn J Hammond, Max Shuai Tang, Terry Minion, Sami Khan, Rob Johnson, Abdullah Abdulaziz, Angelo Urzua-Milla, Tommy Lewis, leorene, Mahina Bachiller, Marcus Andre Nery, Bruce Vieira Lopes, Chef, Charmaine Hanson, Michael Goldberg, Lydia Pflieger, Paul Aldred-Bann, Manav parmar, Susan Wang, Utkarsh Dubey, Thawsitt, Xuebicoco, Jezabel, Maeve, Kim Humphrey and Kristen Damas. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson here: http://ed.ted.com/lessons/how-to-create-cleaner-coal-emma-bryceUploaded 09-12-14It takes a lot of fuel to heat our homes, preserve our food, and power our gadgets. And for 40 percent of the world, cheap, plentiful coal gets the job done. But coal also releases pollutants into the air, causing environmental damage like acid rain and serious health problems. Can we create a cleaner version of coal? Emma Bryce details the three ways we might strip coal of its foul forces.Lesson by Emma Bryce, animation by Artrake Studio. 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/what-is-zeno-s-dichotomy-paradox-colm-kelleherUploaded 15-04-13Can you ever travel from one place to another? Ancient Greek philosopher Zeno of Elea gave a convincing argument that all motion is impossible - but where's the flaw in his logic? Colm Kelleher illustrates how to resolve Zeno's Dichotomy Paradox.Lesson by Colm Kelleher, animation by Buzzco Associates, inc. 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-magic-of-vedic-math-gaurav-tekriwalThere is more than one way to reach a correct answer in mathematics. Vedic math, an ancient Indian method, sidesteps traditional computations in a manner that provides a shortcut, while being fun to use and to learn. At TEDYouth 2012, to ooh's and aah's from the amazed crowd, Gaurav Tekriwal demonstrates the magic of Vedic math.Talk by Gaurav Tekriwal. Learn more about your ad choices. Visit megaphone.fm/adchoices

Explore the successes and failures of FDR’s New Deal, a set of legislation during the Great Depression which aimed to save the US economy. Uploaded 17-06-21--In 1932, one in four Americans was unemployed, marking the highest unemployment rate in the country’s history. The Democratic presidential candidate Franklin D. Roosevelt promised a New Deal— a comprehensive set of legislation to support struggling citizens and put the country back to work. Meg Jacobs digs into the policies of this bold campaign and how it didn’t fully live up to its promises.Lesson by Meg Jacobs, directed by Anton Bogaty.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/what-few-people-know-about-the-program-that-saved-america-meg-jacobsDig deeper with additional resources: https://ed.ted.com/lessons/what-few-people-know-about-the-program-that-saved-america-meg-jacobs#digdeeperAnimator's website: https://www.instagram.com/anton_bogaty ----------------------------------------------Thank you so much to our patrons for your support! Without you this video would not be possible! Jesse Lira, Ezekiel Raui, Itay Levi, Zongpu Kou, Cameron Chakraverty, Petr Vacek, Rhys Patterson, Dennis, Olivia Fu, Katrina Adams, Regina Post, Mary Collins, Kari Teffeau, clumsybunnie, Adam Leos, Jeremy Laurin, Cindy Lai, Liz , Bhargav Pandravada, Rajath Durgada Manjunath, Dan Nguyen, sarim haq, Chin Beng Tan, Alejandro Gomez, Tom Boman, Karen Warner, Isorn Sookwanish, Iryna Panasiuk, Diane Gallin, Aaron Torres, Vasundhar, Eric Braun, Denka Wee, Daru Bhargav, Sonja Worzewski, Amy, Michael Clement, Ghaith Tarawneh, Nathan Milford, Tomas Beckett, Alice Ice, Eric Berman, Kurt Paolo Sevillano, Xavi Ramos, Ron Kakar, Jennifer Heald, flóra lili donáti, Megulo Abebe, TAO7 HORUS and isolwi. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices