Tuesday, July 10, 2012

When was the parachute invented?

A parachute is a big, umbrella-like device with which a person may float safely down from an airplane high in the air.  

The idea of parachutes is an old one.  Leonardo da Vinci sketched one in his notebook in 1514.

Umbrella-like Device
The first practical parachute was not invented until the 1780s, when a Frenchman named Sebastien Lenormand demonstrated the principle of the parachute by jumping from a high tower.  

The modern-day parachute is a nylon canopy about 24 feet across.  A parachute is carefully folded in a pack on the parachutist’s back when not in use.

The parachutist pulls a small ripcord to release the folded parachute.  A smaller parachute pulls the main parachute out of the pack.  

Once the parachute opens, the strong force produced by air resistance to the parachute’s large surface slows the parachute down and allows the parachutist to float safely to the earth. Dick Rogers

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