Dragonfly microdrone research. Researcher looking at a leaf with a real dragonfly (right) next to a libuelle (dragonfly) microdrone (left). The 'dragonfly' microdrone weighs only 120 milligrams, is 6 centimetres wide, and has wafer- thin silicon wings that flap when powered by electricity. Microdrones, also known as MAVs (micro air vehicles), are being designed for a wide range of surveillance purposes. The 'dragonfly' microdrone is being developed by the French company SilMach. A prototype was exhibited in 2005.
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