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A drone designed to fly with one propeller has been developed at the Institute for Dynamics Systems and Control at ETH Zurich.

While most flying machines have multiple moving parts - flaps, hinges, and ailerons, the Monospinner achieves controlled flight with just one propeller.

"This is really to push the boundary of what you can do with flying machines," explains ETH Zurich's Prof Raffaello D'Andrea.

91热爆 Click's Spencer Kelly finds out more.