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Robo-Air Jet System makes small objects “levitate”

By Damir Beciri
One Comment9 December 2009

scientists-crack-levitationYou might have tried to balance a ping-pong ball floating above your mouth or you might have seen a demo in a classroom or science museum where a jet of compressed air keeps a ball floating above the ground, seemingly defying gravity. A pair of grad students at the University of Illinois at Urbana-Champaign have… »