The modern world is an electrified world. The light bulb, in - TopicsExpress



          

The modern world is an electrified world. The light bulb, in particular, profoundly changed human existence by illuminating the night and making it hospitable to a wide range of human activity. The electric light, one of the everyday conveniences that most affects our lives, was invented in 1879 by Thomas Alva Edison. He was neither the first nor the only person trying to invent an incandescent light bulb. THE STORY RELATED INFO BOOKS VIDEOS WEB SITES QUOTATIONS HOW IT WORKS DID YOU KNOW? Invention: electric light bulb in 1879 Elecric Lamp image courtesy General Electric Definition: noun / electric light bulb / incandescent lamp Function: An electric lamp in which a filament is heated to incandescence by an electric current. Todays incandescent light bulbs use filaments made of tungsten rather than carbon of the 1880s. Patent: 223,898 (US) issued January 27, 1880 Inventor: Thomas Alva Edison Thomas Alva Edison photo courtesy General Electric Criteria: First practical. Modern prototype. Entrepreneur. Birth: February 11, 1847 in Milan, Ohio Death: October 18, 1931 in West Orange, New Jersey Nationality: American
Posted on: Sun, 27 Jul 2014 13:34:15 +0000

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