Japanese researchers at Chiba University have developed a new robotic hummingbird which can flutter freely in mid-air by rapidly moving its wings. The robot is powered by a small motor and has four wings. It can be remote-controlled through infrared. According to the developer, the robot, whose development cost has topped 200 million yen (2.1 million dollars), may be used to help rescue people trapped in destroyed buildings or search for criminals.
Source : Physorg