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1890s: He invented a few types of filament lamps with metallic filaments; some say he was the first scientist to use a tungsten filament. He got a patent for lamps with tungsten filaments (US Patent No. 575,002 Illuminant for Incandescent Lamps , Application on 4 January 1893) [ 1 ] and sold it to General Electric (1906), [ citation needed ...
1963 Kurt Schmidt invents the first high pressure sodium-vapor lamp. [17] 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. 1981 Philips sells their first Compact Fluorescent Energy Saving Lamps, with integrated conventional ballast.
1911: The cloud chamber, the first particle detector, is invented by Charles Thomson Rees Wilson. 1912: The first commercial slot cars or more accurately model electric racing cars operating under constant power were made by Lionel (USA) and appeared in their catalogues in 1912. 1912: The first use of articulated trams by Boston Elevated Railway.
Carbide lamps, also known as acetylene gas lamps, are simple lamps that produce and burn acetylene which is created by the reaction of calcium carbide with water. The first carbide lamp was invented and patented in New York City on August 28, 1900, by Frederick Baldwin. [74] 1900 Fly swatter
[132] to take azimuths, altitude, time and declination while making observations [failed verification] Also known as an altitude Instrument, the equatorial sextant was first invented and made by William Austin Burt. He patented it in November 1856, in the United States as U.S. patent #16,002. [133] 1857 Toilet paper (mass-produced and rolled)
At age 21, he was running his own machinery shop in Savannah, Georgia. At this time, Bullock invented a shingle-cutting machine, but his business went broke when he was unable to market it. While in Georgia, Bullock married Angeline Kimball and had seven children with her. When his wife died in 1850, he married Angeline's sister Emily, who bore ...
Glow lamps found practical use as indicators in instrument panels and in many home appliances until the acceptance of light-emitting diodes (LEDs) in the 1970s." [ 4 ] In 1924 he invented the vacuum bulbs used in what was at that time called "telephotography" (sending still pictures by electricity or radio), and in 1925 improved the invention ...
Edward E. Hammer (December 27, 1931 – July 16, 2012) [1] was an engineer who was at the forefront of fluorescent lighting research. His technological contributions in incandescent, fluorescent and HID light sources earned him over 35 patents.