if you thought tiny unmanned vehicles buzzing through the sky were only for sci-fi movies, think again. we have technovations that may leave your head spinning. >> they navigate through windows, fly in formation, and take off and land with ease, and these tiny unmanned aerial vehicles called quad rotors are doing it on their own. >> this is a robot that is completely autonomous. there's no remote control in the back grnld. >> most of the test flights are done here at the university of pennsylvania's lab, decked out with a state of the art motion capture system. and students give the quad rotor simple commands via computer, but the vehicles decide how they'll go from point a to point b on their own. >> we have the bike-on system or the red lights, which allow us to figure out where the robot is. then we're able to send it commands about what we would