When you enter a car, you should be better prepared to your belt! 3 point Seat Belt save millions of lives each year to prevent injuries and deaths. But the man who invented it died years before cars were invented ... and before he could see his incredible theories made.

Seat belts are to Sir George Cayley, one of the most important inventors credited seen in history. Cayley was a wealthy landowner, who from an early age, was obsessed with the concept of aerodynamics. As a teenager, he developed a three-bladed propeller that the head of a toy top mounted. When he spun, his head hovering a few inches above the ground! Cayley knew he was onto something. He does not know yet, but had a first draft of what would be the helicopter.

Cayley has devoted much of his research to build a flying machine. At this point, most scientists believed the only way for a man to fly, was a machine that mimicked the wings of a bird. These machines were called "Birds known."

Cayley said that there is a better way to build a flying machine, but by his inability to be a source of power strong enough to send frustrated to find and keep a machine in the air. It was in the late 1700s and early 1800s, before the machines were running on gasoline engines. Several times in his career returned to the continuation of the model ornithopter Cayley, without success.

In 1799, Cayley has produced a disc of metal with engravings that foreshadows the current aircraft as we know. On the one hand, Cayley, the four forces that govern flight (shown in weight lift, move and shock). On the other hand, Cayley used its version of an airplane, the forces represented. Cayley-wing aircraft Fixed headliner, a fuselage, a cruciform tail surfaces of horizontal and vertical control, a cockpit for the pilots, and a basic disk, which consists of rolling fins, a precursor of propeller. Later, he studied the structure of birds' wings to see how they stayed in the air. This led to the design of wings led, created as part of a lift of the wing plane.

Cayley's theories helped to establish the principles of aerodynamics, but was ignored much of his work in time. He has developed an official version of his glider, which he tested in controlled conditions ... the stairs of his house, Brompton Hall. Finally, he built a wing of what could be the son of one of his servants - who was known to fly as the first man in history.

Towards the end of his life, Cayley had made a successful test flight of a glider of his coachman John Appleby. It flew about 200 feet before a crash landing. Appleby looked like Cayley, Sir George, I want to cancel. I was hired to drive, not fly. "It would be another 50 years before the Wright brothers invented Finally Cayley - the plane developed.