Category: Science

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Luis von Ahn: Massive-scale online collaboration

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After re-purposing CAPTCHA so each human-typed response helps digitize books, Luis von Ahn wondered how else to use small contributions by many on the Internet for greater good. At TEDxCMU, he shares how his ambitious...

The uncertain location of electrons – George Zaidan and Charles Morton

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The tiny atoms that make up our world are made up of even tinier protons, neutrons and electrons. Though the number of protons determines an atom's identity, it's the electrons -- specifically, their exact location ou...

Ramesh Raskar: Imaging at a trillion frames per second

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Ramesh Raskar presents femto-photography, a new type of imaging so fast it visualizes the world one trillion frames per second, so detailed it shows light itself in motion. This technology may someday be used to build...

Pranav Mistry: The thrilling potential of SixthSense technology

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At TEDIndia, Pranav Mistry demos several tools that help the physical world interact with the world of data -- including a deep look at his SixthSense device and a new, paradigm-shifting paper "laptop." In an onstage ...

Franz Harary ideaCity06

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Magician Franz Harary demonstrates magic tricks and explains the logic and the fundamental techniques of the illusions he produces.

Bill Nye: Creationism Is Not Appropriate For Children

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Evolution is the fundamental idea in all of life science, in all of biology. According to Bill Nye, aka "the science guy," if grownups want to "deny evolution and live in your world that's completely inconsistent with...

Neil deGrasse Tyson: The Next Great Scientific Breakthroughs

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The astrophysicist speculates on the next great scientific breakthroughs.

Michio Kaku: The Universe in a Nutshell

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What if we could find one single equation that explains every force in the universe? Dr. Michio Kaku explores how physicists may shrink the science of the Big Bang into an equation as small as Einstein's "e=mc^2." Tha...

Terry Moore: Why is ‘x’ the unknown?

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Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.

Vi Hart at Gel 2011

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Mathematical constraints can help create beautiful music. Two minutes in you'll hear Vi Hart's "self referential string quartet" in which each instrument plays its own name - using the binary representation of the ASC...

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