Model spacecraft demonstrates the real-world principles behind a tractor beam

Joseph Shoer of Cornell University has built a levitating model spacecraft to demonstrate how a tractor beam could potentially work in real life. In the video, Shoer uses a "ludicrous" neodymium magnet to manipulate his non-ferromagnetic model which floats on air. Says Shoer of his experiment: » 2/07/11 5:24pm 2/07/11 5:24pm