Don't confuse this with what the hucksters are flogging at your local mall. This 15-gram "nano" copter goes where it's told and back again, indoor or out.
Prox Dynamics of Asker, Norway, has developed what it says may be one of the world's smallest unmanned helicopters. Now on its fifth prototype, the PD-100 Black Hornet has achieved a major milestone this month after successfully completing its first outdoor flight test. It's quiet, too. The sound from the helicopter was inaudible at three yards over ambient noise, according to the company.
"Prox Dynamics is … Read more