Toy-sized quadrotors flying in formation
By Cory Doctorow at 11:00 am Wednesday, Feb 1 
Researchers from GRASP Lab at the University of Pennsylvania developed software to allow toy-sized nano quadrotors to fly in tight, precise and eerie formation. Gmoke sez, "William Gibson dreams of a mass of these things comprising a flying skyscraper. I imagine them as surveillance and policing drones ready to stop the OWS action or Arab Spring before it can start."
A Swarm of Nano Quadrotors (Thanks, Gmoke!)
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