Unbelievable Human Powered Machines gen H-4 gen H-4, personal single-seat helicopter. This aerial vehicle consists of only a ...

Dry maple seeds on their branch. Their wings allow the seeds to spin and glide on the wind, carrying them away from their parent tree. Every other Friday, the Outside/In team here at NHPR answers ...

Imagine strapping on a pair of giant multicolored wings, except they’re not actually attached to your arms — you control them without actually touching them, waving your hands up and down in the air, ...

BEX, Switzerland — A Swiss pilot strapped on a jet-powered wing and leaped from a plane Wednesday for the first public demonstration of the homemade device, turning figure eights and soaring high ...