Researchers develop virtual-reality testing ground for drones

Training drones to fly fast, around even the simplest obstacles, is a crash-prone exercise that can have engineers repairing or replacing vehicles with frustrating regularity.Now MIT engineers have developed a new virtual-reality training system for drones that enables a vehicle to “see” a rich, virtual environment while flying in an empty physical space.The system, which the team has dubbed “Flight Goggles,” could significantly reduce the number of crashes that drones ex