A pocket-size drone dubbed the Nano Hummingbird for the way it flaps its tiny robotic wings has been developed for the Pentagon by a Monrovia company as a mini-spy plane capable of maneuvering on the battlefield and in urban areas. The battery-powered drone was built by AeroVironment Inc. for [DARPA, the Defense Advanced Research Projects Agency,] the Pentagon's research arm, as part of a series of experiments in nanotechnology. The little flying machine is built to look like a bird for potential use in spy missions. Equipped with a camera, the drone can fly at speeds of up to 11 miles per hour. It can hover and fly sideways, backward and forward, as well as go clockwise and counterclockwise. It also demonstrates the promise of fielding mini-spy planes. Industry insiders see the technology eventually being capable of flying through open windows or sitting on power lines, capturing audio and video while enemies would be none the wiser. With a wingspan of 6.5 inches, the mini-drone weighs 19 grams, or less than a AA battery. The Hummingbird's guts are made up of motors, communications systems and a video camera. It is slightly larger than the average hummingbird.
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