Humans don't have hollow bones like birds do, so how big would our wings have to be to lift us off the ground?

A groundbreaking brain implant has allowed a paralyzed man to control a virtual drone and fly it through an obstacle course.

How small can an electric motor be without resorting to manufacturing methods like lithography? In a recent video, [Chronova Engineering] on YouTube tries to replicate the 1960 McLellan motor that ...