Remarkable metals, how shape memory alloys work - Ainissa Ramirez

View full lesson: http://ed.ted.com/lessons/a-trip-through-space-to-calculate-distance-heather-tunnellUploaded 06-09-13Imagine two aliens racing across outer space to their moon. Who can we deem the fastest alien? With DIRT -- or the equation Distance = Rate x Time -- we can calculate their rates, …

Follow the legend of Parvati, the Hindu mother of the natural world, as she disappears from Earth and reemerges as Annapurna, the goddess of food. Uploaded 13-02-20--Historically, the union between Shiva and Parvati was a glorious one: a sacred combination which brought fertility and connection to …

Dive into the history of the life-saving procedure of blood transfusions and how it has evolved since the 17th century. Uploaded 18-02-20--In 1881, doctor William Halsted rushed to help his sister Minnie, who was hemorrhaging after childbirth. He quickly inserted a needle into his arm, withdrew his…

View full lesson: http://ed.ted.com/lessons/the-game-layer-on-top-of-the-world-seth-priebatschUploaded 06-09-13By now, we're used to letting Facebook and Twitter capture our social lives on the web -- building a "social layer" on top of the real world. In his talk, Seth Priebatsch looks at the next…