Saturday, February 11, 2017

Electric Lamp 1979 Indian stamp

Inventor Thomas Alva Edison was born on February 11, 1847, in Milan, Ohio. He was the last of the seven children of Samuel and Nancy Edison. Thomas's father was an exiled political activist from Canada. His mother, an accomplished school teacher, was a major influence in Thomas’ early life. 

Thomas Alva Edison  who has been described as America's greatest inventor.He developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb.

He was one of the first inventors to apply the principles of mass production and large-scale teamwork to the process of invention, and because of that,  today  we  are easily using many  ways  of communication mainly  wats app

In the fall of 1878, Edison devoted thirty months to developing a complete system of incandescent electric lighting. During his lamp experiments, he noticed an electrical phenomenon that became known as the "Edison effect," the basis for vacuum-tube electronics.

By the time of his death on October 18, 1931, Edison had received 1,093 U.S. patents, a total still untouched by any other inventor. Even more important,

Department  of Posts issued a special postage stamp  commemorating the invention  of Centenary of Electric light bulb.

Issued  Date: 21.10.1979
Denomination: 100 Paise

1 comment:

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