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Secret: Glider Plane Pilot 06:42
Take a behind-the-scenes look at this animated scene from "The Fabric of the Cosmos." 05:13
Brian Greene on physics, infinity, and cards. 09:24
Physicist Michio Kaku's dream is to find the "unified theory of everything." But he does take breaks to go figure skating. 02:08
Full Program: Einstein's Dream: Eleven dimensions, parallel universes, and a world made out of strings. It's not science fiction, it's string theory. 53:50