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In New Orleans, arc lamps were used for street lighting starting in 1881. In 1882, the New Orleans Brush Lighting Company installed one hundred 2,000-candlepower arc lamps along five miles of wharf and riverfront; by 1885, New Orleans had 655 arc lights. [1] In Chicago, arc lamps were used in public street lighting starting in 1887. [1]
The first Light-Emitting Diode was created in 1927 by Russian inventor Oleg Losev, [1] and used silicon carbide as a semiconductor. However, electroluminescence as a phenomenon was discovered twenty years earlier by the English experimenter Henry Joseph Round of Marconi Labs , using the same crystal and a cat's-whisker detector .
1962 Nick Holonyak Jr. develops the first practical visible-spectrum (red) light-emitting diode. 1963 Kurt Schmidt invents the first high pressure sodium-vapor lamp. [18] 1972 M. George Craford invents the first yellow light-emitting diode. 1972 Herbert Paul Maruska and Jacques Pankove create the first violet light-emitting diode.
The Westinghouse Lamp Plant located in Bloomfield, New Jersey, was one of the lamp manufacturing plants of Westinghouse Electric Corporation. [1] The plant had a major involvement in supplying uranium metal for the world's first self-sustaining chain reaction in Chicago ( Chicago Pile-1 ) in the early phase of the Manhattan Project to create ...
Pastel tones and light carpeting were also encouraged by the Institute staff to improve the interior visual environment. [13] In 1940, clinics were held that attracted some 240–250 people per day from 13 states to explore the use of the new light source—the fluorescent tube—which had been introduced at the New York World's Fair in 1938-39.
It used to be more frequent, but Chicago’s light pollution with the new LEDs is overwhelming,” said Harris, the vice ... Northern lights probably won’t dance across Chicago skies this week ...
The Laurel Lamp Manufacturing Company Inc. (often referred to as the Laurel Lamp Company or Laurel) was an American manufacturer of lamps and home furnishings based in Newark, New Jersey from 1946 to 1981. [1] [2] [3] The Laurel Lamp Company was founded by Max Weiss and his two sons, Murray and Harold Weiss.
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