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In 1838, Belgian lithographer Marcellin Jobard invented an incandescent light bulb with a vacuum atmosphere using a carbon filament. [17] In 1840, British scientist Warren De la Rue enclosed a coiled platinum filament in a vacuum tube and passed an electric current through it. The design was based on the concept that the high melting point of ...
Edison reciting Mary Had a Little Lamb. Recorded 1929. Signature. Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman. [1][2][3] He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. [4]
Sir Joseph Wilson Swan FRS (31 October 1828 – 27 May 1914) was an English physicist, chemist, and inventor.He is known as an independent early developer of a successful incandescent light bulb, and is the person responsible for developing and supplying the first incandescent lights used to illuminate homes and public buildings, including the Savoy Theatre, London, in 1881.
Lewis Howard Latimer (September 4, 1848 – December 11, 1928) was an American inventor and patent draftsman. His inventions included an evaporative air conditioner, an improved process for manufacturing carbon filaments for light bulbs, and an improved toilet system for railroad cars. In 1884, he joined the Edison Electric Light Company where ...
Henry Woodward was a Canadian inventor and a major pioneer in the development of the incandescent lamp. He was born in 1832. [1][2] On July 24, 1874, Woodward and his partner, Mathew Evans, a hotel keeper, filed a Canadian patent application on an electric light bulb. [2][3] It was granted on August 3, 1874, as Canadian patent number 3,738. [4]
In the 1960s, US inventor Robert (Bob) Kyp patented a similar in appearance but flickering "electric flame" light bulb under the name Balafire [6] as well as radiometers. His flicker bulb was used in a 7-Up commercial, [7] and the company he ran since 1964, Kyp-Go, is currently the only US manufacturer of carbon-filament bulbs. [8]
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