A small insect or a mosquito over your ear may now be much more than simply annoying. Those could easily be micro drones which now come in a swarm of bug-sized flying spies.
In an effort to create a hard-to-detect surveillance drone that will
operate with little or no direct human supervision in out of the way
and adverse environments, researchers are mimicking nature.
The University of Pennsylvania GRASP Lab showed off a network of 20 nano-quad rotors capable of agile flight, which could swarm and navigate in an environment with obstacles.
