�y��vlog

This was called an orthopter, or ornithopter, a name which may be properly applied to any similar device.

THE ORTHOPTER.—The term orthopter, or ornithopter, meaning bird wing, is applied to such flying machines as depend on wing motion to support them in the air.

The word “orthopter” means straight wing and the word “ornithopter” bird wing.

Two of them, the aeroplane, and the orthopter, have prototypes in nature, and are distinguished by their respective similarities to the soaring birds, and those with flapping wings.