... had designed plans to build bridges that where strong and very light, and easy to carry. Also, he told him that he had plans to build machine that could destroy fortress, cannons that where easy to transport, covered chariots, and other machines. In the last two sentences of his letter noted that he ... (Wasserman 10). Leonardo spent a great deal of his time while he was in Milan working on military plans and working on engineering projects, such as plans for urban-renewal (Stokstad 688). During this time he invented many thing like table lamps, locks for chest, folding furniture, and a...

• Word Count: 1952
• Approx Pages: 8
• Grade Level: High School

... great change, which produced many great minds. During this time period, society was transformed into one of increasingly dominated by central political institutions with an urban attitude. People's curiosity overcame their fear and many people began to explore and try new things out. It was so evident that new schools ... was able to prove the theory of perpetual motion false, but it still fascinated him. His notes included small ideas for how a perpetual motion machine would work. He believed that an unbalanced wheel that would revolve forever would conserve pretty much all to most of ...

• Word Count: 2161
• Approx Pages: 9
• Grade Level: High School