Helicopter rotor performance and optimisation represent a dynamic field of research that addresses improvements in efficiency, environmental impact and overall operational capability. Researchers have ...
PASADENA, Calif.—The twirling seeds of maple trees spin like miniature helicopters as they fall to the ground. Because the seeds descend slowly as they swirl, they can be carried aloft by the wind and ...
Seiko Espon claims that this is the world’s lightest and smallest robot copter - hard to argue, as this thing weighs just 8.9 grams. The helicopter had four legs, four actuators, and two rotors. which ...
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