Robotic Swiss Quadrocopters Playing Tennis

A quadrocopter is an aircraft that is lifted and propelled by four rotors. Zurich's Flying Machine Arena hosted a quadrocopter tennis match, involving a human-robot volley, a doubles match and an impressive robot-to-robot juggling act. The robots were outfitted with tennis rackets, allowing them to fly toward the ball and return a human's serve. Watch it below.

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