Book - Parachutes How They Work

Eloise Engle - 1972
Longmans Canada Limited
ISBN: none
Parachutes How They Work
£3.45 + p&p.

In stock! Order now!

Parachutes How They Work

The shape of the parachute has changed very little since it was developed in ancient China. It still resembles an umbrella (also of Chinese origin) and is still designed for a one-way trip-down, but slowly. The full value of the parachute as a life-saving device was demonstrated during World War I, and in recent years parachute jumping has become a popular, if hazardous, sport. The parachute is now more complicated than an umbrella shaped cloth, and here is how it works.