Boaz Almog “levitates“ a superconductor

How can a super-thin, three-inch disk levitate something 70,000 times its own weight? In a riveting, futuristic demonstration, Boaz Almog shows how a phenomenon known as quantum locking allows a superconductor disk to float over a magnetic rail -- completely frictionlessly and with zero energy loss. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes. Featured