Quadrocopters juggle balls cooperatively
Why aren't they using these in Fukushima:<p><a href="http://metamodern.com/2011/03/24/fukushima-%E2%80%94-where-are-the-parrots/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Metamodern+%28Metamodern%29" rel="nofollow">http://metamodern.com/2011/03/24/fukushima-%E2%80%94-where-a...</a>