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François-Pierre-Amédée Argand, known as Ami Argand (5 July 1750 – 14 [1] or 24 October 1803 [2]) was a Genevan physicist and chemist. He invented the Argand lamp , a great improvement on the traditional oil lamp .
The Argand lamp is a type of oil lamp invented in 1780 by Aimé Argand. Its output is 6 to 10 candelas , brighter than that of earlier lamps. Its more complete combustion of the candle wick and oil than in other lamps required much less frequent trimming of the wick.
This is a list of notable corporations headquartered in Los Angeles County, California. The table is arranged alphabetically by company. The table is arranged alphabetically by company. This is a dynamic list and may never be able to satisfy particular standards for completeness.
For years, mounds and mounds of trash have surrounded a Spanish bungalow in Los Angeles’ Fairfax neighborhood. The frontyard holds hundreds of white trash bags stacked 5 to 6 feet high.
Jon Vander Ark doesn't mind anyone calling the company he leads, Republic Services, a garbage company.After all, founded in 1996, the company made its name hauling trash and still makes 5 million ...
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1780 Ami Argand invents the central draught fixed oil lamp. 1784 Argand adds glass chimney to central draught lamp. 1786 William Nicholson proposes use of concentric wicks. [3] 1792 William Murdoch begins experimenting with gas lighting and probably produced the first gas light in this year.
The primary marketing point of the Lewis lamp was that it used less than half the oil of the prior oil lamps they replaced. The lamp used a similar design to an Argand lamp, adding a parabolic reflector behind the lamp and a magnifying lens made from 4-inch-diameter (100 mm) green bottle glass in front of the lamp.