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Man_And_Aviation

2013-11-13 来源: 类别: 更多范文

Man And Aviation Man and Flight Man’s dream of flying has been apparent almost as long as mankind himself. However, the concept of an aircraft has only been around for approximately two hundred years. Before this time, man tried to fulfill this dream by mimicking the birds. They first built machines called ornithopters to utilize mans own power to propel himself through the air. It did not take long for the inventors to realize that this concept was not practical for human flight. It took about twenty more years for technology to catch up. Beginning around 1783, a few aeronauts, as they were known, made daring uncontrolled flights in “lighter-than-air” balloons, but it was soon realized that this was not a practical way to fly either. It wasn’t until the early nineteenth century that Sir George Cayley designed the first true fixed wing flying machine. His design used a kite mounted to a stick with a moveable tail and rows of flappers under the wings for thrust. Cayley’s craft however, still did not utilize the principle of engine propulsion. In 1900, a man named of Gustave Whitehead had been building and flying gliders for the Boston Aeronautical Society when he decided to start experimenting aircraft, flight, years, whitehead, wright, one, two, time, kitty, hawk, flying, first, design, world, wing, throughout, speed, new, gustave, flights, experiments, decided, day, brothers, been, barrier, way, technology, sound, realized, pilots, period, own, motor, long, engine
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