HISTORY OF AVIATION
The history of aviation has extended over more then two thousand years from the earlist kites and attempts at tower jumping to supersonic and hypersonic flight by powered heavier - than - air jets. Leonardo da Vinci 15th - century dream of flight found expression in several raticnal but unscientific designs, though he did not attempt to construct any of them. efforts to analyze the atmosphere from the 17th to 19th centuries led to the discovery of gases such as hydragen, which in turn led to the inovetion of hydrogen balloons. Varous theories in mechanics by physicests during the same period of time, notably fluid dynomics and Newttons laws of motion, led to the foundation of modern aerodynamics.
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