This demonstration of the first controlled flight of an insect-sized robot, and the world's smallest micro air vehicle (MAV), is the culmination of more than a decade's work. Half the size of a paperclip and weighing less than a tenth of a gram, the robot bee was inspired by the biology of two-winged flying insects such as a bee or a fly. Two wafer-thin wings flap almost invisibly, 120 times per s