Air guitar T-shirt rocks for real: Australian scientists have created a T-shirt that allows air guitarists to play real music - without resorting to a real guitar. Motion sensors built into its elbows that pick up movements and relay them wirelessly to a computer which interprets them as guitar riffs. Meanwhile, scientists in Florida have taught dolphins to sing the Batman theme. Is there some kind of international wackiness competition going on in the scientific world, I wonder?