People in Linz, Austria were lucky enough to see an amazing swarm of 50 Quadcopters performing a synchronized lightshow. A smart group from the Ars Electronica Futurelab and Ascending Technologies GmbH launched 50 AscTec Hummingbird quadcopters at the same time. The AscTec Hummingbird Quadrocopters put on a pretty cool lightshow. Video after the break.