It may seem straight out of "Star Trek," but it's real: Scientists have created a sonic "tractor beam" that can pull, push and pirouette objects that levitate in thin air. The sonic tractor beam ...
Gene Roddenberry would be beaming with pride right now to see the scientific community hellbent on making his science fiction into science fact. Gene did actually get to see some of his ideas turn ...
A new "tractor beam" can levitate large objects in midair, using only sound. So far, researchers have floated spheres as large as 0.6 inches (16 millimeters) in diameter and moved orbs as large as 0.8 ...