Para ver la lección completa, visita: http://ed.ted.com/lessons/a-guide-to-the-energy-of-the-earth-joshua-m-sneideman La energía ni se crea ni se destruye y sin embargo la demanda mundial continúa aumentando. Pero ¿de dónde viene la energía y adónde va? Joshua M. Sneideman examina las muchas maneras en que la energía circula alrededor de nuestro planeta, desde el Sol a nuestra cadena alimentaria, a la electricidad y más allá. Lección de Joshua M. Sneideman, animación de Marc Christoforidis.
David Lang is a maker who taught himself to become an amateur oceanographer -- or, he taught a robot to be one for him. In a charming talk Lang, a TED Fellow, shows how he and a network of ocean lovers teamed up to build open-sourced, low-cost underwater explorers.nnTEDTalks is a daily video podcast
View full lesson: http://ed.ted.com/lessons/where-did-russia-come-from-alex-gendler Russia is the biggest country in the world, spanning one-eighth of the earth’s landmass. But where did it all begin? Alex Gendler explores the epic history of the Kievan Rus, where characters ranging from Viking rai
View full lesson: http://ed.ted.com/lessons/the-language-of-lying-noah-zandan We hear anywhere from 10 to 200 lies a day. And although we’ve spent much of our history coming up with ways to detect these lies by tracking physiological changes in their tellers, these methods have proved unreliable. I
