![Article Image](https://www.freedomsphoenix.com/Uploads/Pix/533-0929180659.jpg)
Flying robots cooperate to play catch
• http://www.gizmag.com, By Jason FalconerFlying quadrocopters at ETH Zurich's Flying Machine Arena catch and launch a ball using a net spread between them
Flying quadrocopters at ETH Zurich's Flying Machine Arena catch and launch a ball using a net spread between them