Chinese researchers unveil brain powered car

Chinese researchers have developed what they say is the country's first car that uses nothing but brain power to drive.     The research team from Nankai University, in the north-eastern Chinese port city of Tianjin, has spent two years bringing the mind-controlled vehicle to reality.     By wearing brain signal-reading equipment a driver can control the car to go forward, backwards, come to a stop, and both lock and unlock the vehicle, all without moving their hand