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If you are in your car, you had better be ready to buckle your seat belt! Restraint systems save millions of lives each year, the prevention of injury and even death. But the man who invented it died years before cars invented ... and before he could see his amazing theories realized.

Restraint systems are credited to Sir George Cayley, who was one of the greatest inventors in history. Cayley was a wealthy landowner who from an early age, was obsessed with the concept of aerodynamics. As a youth he developed a three-bladed propeller that he had at the helm of a toy top. When it spun, the top floated a few inches above the ground! Cayley, he knew something. He did not know it, but had an early version of what would be the helicopter.

Cayley devoted a large part of his research on building a flying machine. At this point, most scientists believed that the only way for a man to fly was made possible by a machine that mimicked a bird flapping of the wings. These machines were known as "ornithopters. ""

Cayley believed that there is a better way to make a flying machine, but was frustrated by his inability to be a source of power strong enough to send a machine in the air. This was in the late 1700s and early 1800s, before the machines ran on gas-powered engines. At several points in his career, Cayley went back to the persecution of the ornithopter model, without success.

In 1799, Cayley a metal disk with etchings, the model for today's aircraft, as we know it. On the one hand, Cayley presented the four forces, the flight (weight, lift, drag and thrust). On the other hand, Cayley presented his version of an aircraft that employ those forces. Cayley planes Featured a permanent building, a fuselage, a cruciform tail with surfaces for vertical and horizontal, a cockpit for the pilots, and a rudimentary means of propulsion, consisting of rotating blades, a precursor of the propeller. Later he studied the structure of birds' wings to see how she carries. This led to the design of profiles, which are a part of the surface of the wing creates lift.

Cayley theories contributed to the principles of aerodynamics, but the bulk of his work was ignored at the time. He wound up a formal version of his glider, which he under controlled circumstances ... in the staircase of his family at home, Brompton Hall. Finally, he built a glider that is used, the son of one of its staff - Who was the first man in history known to fly.

At the end of his life, Cayley had a successful test flight of a glider piloted by his coachman, John Appleby. He flew about 200 meters before a crash landing. As reported, said Appleby Cayley, Sir George, I would like to announce. I was driving, not flying. "" It would be another 50 years before the Wright brothers finally perfected Cayley invention - the airplane.

What does this have to do with seat belts? Easy - Cayley a belt to his pilots quickly if they are in his glider. In addition, the system of wheels on strings that he used for his umbrellas helped through another invention - the bicycle wheel. If you ride a bike, drive a car or fly in an airplane, remember what you owe George Cayley, known as "The Father of Flight."

http://www.centennialofflight.gov/essay/Prehistory/Cayley/PH2.htm

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