A passenger drone, which completed its first flight in November, could be in use by 2020!

Developed over 15 years for rescue or military use, the $14m (£11m) Cormorant (formerly AirMule) can carry 500kg (1,100lb) at 185km/h (115mph). Urban Aeronautics says internal rotors make it safer than a helicopter. And as well as taking off and landing vertically, it can fly between buildings and below power lines. "It paves the way…