This is not the first time we've covered flying robots such as the UAV Ar.Drone Parrot, or a voice at MIT.

This is UPenn, developed by the GRASP Laboratory. I have no idea whether GRASP is supposed to represent something, but it is certainly a pretty good description of what the quad-copter does.

Do I have a video of him when you can watch after the jump. You can see one of them took a board or something, and you'll see how it flies through the air when it sinks. At least he has not escaped our control.

Even more impressive, the fact that this quad together helicopters can do is set aside for something heavy. This method uses a kind of swarm technology is aptly named because it resembles a swarm of bees.

I am sure this technology is still in development, and I am not sure what you really use it. I mean, I would love to fly one of these things to have around the house and pick up things, but it is more of a toy, really.

Maybe in the future, we can use it in the streets of the city to send and pick up trash. Yeah. Here we go. I'm sure I no longer think of practical use.