The video shows the Autonomous quadrotor (which means 4 rotors) in aggressive flight. What is that? Well, it's a 4 rotor flying device out of the GRASP Lab at the University of Pennsylvania. I'm not 100% sure what is going on, or the research behind this, but this quadrotor device will probably be scooped up by the military before I'm done writing this text.
For more, check out the field tests. Simply amazing.