Which american invented the electric light bulb
The Age of Edison: Electric Light and the Invention of Modern America by Ernest FreebergThe late 19th century saw a surge of technological advancement, but probably nothing as important as Edison’s invention of the light bulb. Here, University of Tennessee history professor Freeberg, author of the Los Angeles Times Book Prize finalist Democracy’s Prisoner, shows how radically the light bulb transformed America, freeing it from the stranglehold of the gas companies, turning it from a rural to an urban society and, as the electrical grid took over, drawing a sharp line between city and country, rich and poor. For history buffs and techies alike.
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Who really invented the light bulb?
Thomas Edison was an American inventor who is considered one of America's leading businessmen and innovators. Edison rose from humble beginnings to work as an inventor of major technology, including the first commercially viable incandescent light bulb. He is credited today for helping to build America's economy during the Industrial Revolution. Edison was born on February 11, , in Milan, Ohio. He was the youngest of seven children of Samuel and Nancy Edison. An early bout with scarlet fever as well as ear infections left Edison with hearing difficulties in both ears as a child and nearly deaf as an adult.
Or did he? Swan sued Edison for patent infringement, and the British courts ruled against Edison as punishment, Edison had to make Swan a partner in his electric company. Even the U. As it happens, Swan and Edison worked from bulb designs that had been in use since the early s. Swan used a carbonized paper filament, but the poor quality of the vacuum in the bulb caused the carbon to disintegrate rapidly, so the bulb glowed for just and-a-half hours. Edison used a better vacuum pump, and after he and his posse of assistants had tested thousands of materials, he made a filament derived from bamboo that lasted up to 1, hours.
If not him, then who really did invent the light bulb? Actually, by the time Edison started working on it, the light bulb had been around for a long time, just in a different form, DeGraaf explained. About 20 inventors from across the world had drafted various patents on it.
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On October 21st, , in one of the most famous scientific tests in history, Thomas Edison debuted his signature invention: a safe, affordable, and easily-reproducible incandescent lightbulb that burned for thirteen and a half hours. Bulbs tested following that lasted for 40 hours. Although Edison cannot fairly be credited as the sole inventor of the lightbulb, his final product—the result of years of collaboration and testing alongside other engineers—revolutionized the modern industrial economy. Davy connected two wires to a battery and attached a charcoal strip between the other ends of the wires. The charged carbon glowed, making what became known as the first-ever Electric Arc Lamp. His lamp design was worked but the cost of the precious metal platinum made this an impossible invention for wide-spread use. Joseph Wilson Swan started working with carbonized paper filaments the same year.
He established the first industrial research laboratory. Edison was raised in the American Midwest ; early in his career he worked as a telegraph operator , which inspired some of his earliest inventions. He later established a botanic laboratory in Fort Myers, Florida in collaboration with businessmen Henry Ford and Harvey Firestone , and a laboratory in West Orange, New Jersey that featured the world's first film studio , the Black Maria. He was a prolific inventor , holding 1, US patents in his name , as well as patents in other countries. Edison married twice and fathered six children.