Quadcopters, Juggle, Pong and Ping

Saw this link from friend Matt Clower — http://www.modelairplanenews.com/blog/2013/02/26/juggling-drones-quadcopters-that-can-bounce-catch-and-balance/ and at first I didn’t know whether people were controlling them or they were responding themselves. That it’s on Model Airplane News should be a clue, of course – but turns out it’s not a clue at all. These machines quadcopters / quadrocopters ARE responding to the world around them.