Electricity | Term 2 Unit 2 | 7th Science - The world comes to brightness Thomas Alva Edison (1847-1931) | 7th Science : Term 2 Unit 2 : Electricity
Chapter: 7th Science : Term 2 Unit 2 : Electricity
The world comes to brightness Thomas Alva Edison (1847-1931)
He
invented an advanced instrument Gramophone in 1877.
He
used a platinum wire coil in a vacuum glass and discovered the first electric
bulb in 1879.
Thomas
Alva Edison invented a commercially viable electric bulb. This was exhibited in
1897
By using mechanical power in a battery, electric power was generated by providing the voltage. Edison proved that voltage is given in the ends of battery. The same was transferred into an electric motor which provided mechanical energy.
By
extending Kinetoscope into 50 feet film strip, he made first talkie film by
using electric motor and magnifying glass in 1891.
As a mark of respect to Edison on his death, the light of “Statue of Liberty” in New York was turned off. Except the road lights of Chicago and Broadway, all the lights in the city were turned off.
Edison was an American Scientist and Industrialist. He invented many instruments like Electric bulb, electric motor, gramophone and kinetoscope. He was known as for taking the world of darkness to brightness crossing all the obstacles in life.
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