1. Money

Ornithopter Flying Machine

Drawing by Leonardo da Vinci

By

Biography for Leonardo DaVinci listed below drawing.
Ornithopter Flying Machine Designed and Drawn by Leonardo da Vinci

The Ornithopter Flying Machine Designed and Drawn by Leonardo da Vinci

Leonardo da Vinci
The ornithopter flying machine was never actually created. It was a design that Leonardo DaVinci made to show how man could fly. Some experts say that the modern day helicopter was inspired by this design.

©2014 About.com. All rights reserved.