Remember the Star Trek computer? It's finally happening--with Wolfram|Alpha. Building on 25 years of development led by Stephen Wolfram, Wolfram|Alpha has rapidly become the world's definitive source for instant expert knowledge and computation. Across thousands of domains--with more continually added--Wolfram|Alpha uses its vast collection of ...

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• Watch videos recommended just for you • Use Facebook Groups to get things done, discuss similar topics, and more • See what friends are up to • Watch and interact with live video • Share updates, photos and video • Get notified when friends like and comment on your posts • NEW