I'd not seen it before BUT that sort of video you can reend as often as feels good. Extremely amazing. With some discussion here http://robohub.org/video-throwing-and-catching-an-inverted-pendulum-with-= quadrocopters/ On 26 February 2013 16:11, John Gardner wrote: > My apologies if already posted, but I don't see it... > > http://techcrunch.com/2013/02/22/watch-these-quadcopters-flip-a-reverse-p= endulum-into-the-air-and-catch-it-no-seriously-watch/ > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .