For the uninitiated, ornithopters are machines which fly by flapping their wings. The problem was that ... and sometimes hidden mechanisms known as levers. Technically speaking, levers predate ...

These wings, made from tapered shafts and a wing film, were paired with a flapping mechanism powered by a DC motor, producing a rhythmic flapping motion at a pace of 12 cycles per second.

The wings were secured to a flapping mechanism driven by a DC motor and Scotch yoke system. A rate of 12 flapping cycles per second was generated. Sign up for Chip Chick's newsletter and get ...

Flying animals ranging from bugs to bats use a common mechanism to maintain control in turns a discovery that reveals hidden advantages of flapping-wing flight. Having gotten its fill of nectar ...