Drones are saving endangered species

The kakapo or owl parrot is the world's largest and only flightless parrot, found only in New Zealand and its neighboring islands. It was widespread throughout New Zealand before the arrival of colonizers, but by the late 19th century,...

Video explanation of the principle of operation of the collectorless motor

Video on how a collectorless motor works

Video example of acro flight on the ZMR250 quadcopter

Example of quadrocopter flight in acro mode by FPV pilot Boris B