He had ideas ahead of his time, especially the concept of helicopters, tanks, parachute, the use of solar energy, the convergence of computers, drafting theory created the topography, the double bottom, and several other inventions. A few of his designs were made and feasible while he was alive. Scientific applications in the metal processing in engineering in the era of the Renaissance also is in the infancy period. In addition, he has contributed greatly to the knowledge and understanding of Anatomy, astronomy, civil engineering, optics and hydraulic studies. The products remain in the life he only left a few paintings, along with a few log book drafts (scattered in many different collection of his creations), inside contains the sign-painter, Illustrator and science bibliography.
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