Some of Leonardoâs most recognizable inventions come in the form of war machines. Most of the drawings we see today are of the crossbow and catapult. The most famous being the catapult (Heydenreich 95). Da Vinci based many of his doodles on simple machines. He was known to have incorporated levers, pulleys, and wheels into most of his inventions...
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Different forms of levers were used when he began to study human flight. Leonardo was fascinated with the idea of flight and set aside much of his time to study flying machines and the idea of human flight. His many sketches of flying machines were based on the wings of birds and bats. In one of Leonardoâs illustrations he has a flying machine that âhas reticulated wings like a batâs, a fanned-out tail like a birdâs, and a cockpit or framework shaped rather like a kayakâ(Nicholl 150)...