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Lewis Edson Waterman (November 20, 1836 – May 1, 1901) was an American inventor. He held multiple fountain pen patents and was the founder of the Waterman Pen Company . His entry into fountain pen manufacturing has only recently been properly researched.
Lewis Waterman, an insurance salesman in New York City, invented the first truly functional fountain pen in the early 1880s. An apocryphal story is that a typical pen of the day leaked all over a contract he had prepared for a large policy, and by the time Waterman returned with a new document, his client had signed with someone else. [2]
This is ideal in situations where moving the light board is impractical, but control is needed away from where the board is located. That is, if the light board is in a control room that is located far from the fixtures, such as a catwalk, an RFU can be attached and an electrician or the lighting designer can bring it to a location which is ...
1875 Henry Woodward patents an electric light bulb. 1876 Pavel Yablochkov invents the Yablochkov candle, the first practical carbon arc lamp, for public street lighting in Paris. 1879 (About Christmas time) Col. R. E. Crompton illuminated his home in Porchester Gardens, using a primary battery of Grove Cells, then a generator which was better ...
Manfred von Ardenne invented and developed the flying-spot scanner, Europe's first fully electronic television camera tube. In Britain, the first television advertising and the first TV interview; 1931 The British engineer and inventor Alan Dower Blumlein (1903–1942) invents "Binaural Sound", today called "Stereo".
Harry Mendell, U.S. – invented the first digital sampling synthesizer; Joy Mangano (born 1956), U.S. – household appliances; Anna Mangin (1844–1931) – American inventor, educator, caterer and women's rights campaigner; Charles Mantoux (1877–1947), France – Mantoux test (tuberculosis) Guglielmo Marconi (1874–1937), Italy – radio ...
A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...
Joel Solon Spira (March 1, 1927 – April 8, 2015) was an American inventor, entrepreneur, and business magnate.. He invented a version of the light-dimmer switch for use in homes around the United States and led his Lutron Electronics Company into the production of lighting controllers.