Transportation

फिसलना: 1
For example, collective learning was also shown when inventors were starting to build gliders.
Between 1799 and 1850, an inventor named George Cayley designed many different versions of gliders. He used the movement of the body to control them. For over 50 years he made improvements to the gliders. So that the air would flow over the wings correctly, he changed the shape of the wings and designed a tail for the gliders so they could be more stable.
England1799-1850
फिसलना: 2
After George Cayley's discoveries were made, a German engineer named Otto Lilienthal wrote a book on aerodynamics. But after more than 2,500 flights on his glider, Otto was killed because he lost control of his glider after a big gust of wind.
Anklam, Germany1891
फिसलना: 3
In 1900, Orville and Wilbur Wright began to build their own glider. They used text from Otto Lilienthal's book on aerodynamics to help them with their basis for their designs.
The first thing they did was read about all the developments of flight from many years before. They decided to make small contribution to the study of flight control, and they did that by twisting their wings in flight. They tested their ideas with a kite, and they learned that the wind would help with the flight and it would affect things up in the air.
Dayton, Ohio1900

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