Boaz Almog levitates a superconductor

How can a superthin, threeinch 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