These mini copters flying in formation are the coolest thing I’ve seen all day

Posted February 1, 2012 by Dan Lyons & filed under Tech.

http://www.youtube.com/watch?v=YQIMGV5vtd4&feature=g-all-blg&context=G2be7dd0FAAAAAAAABAA

Developed at the University of Pennsylvania. Just: wow.

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