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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.
A 230-volt incandescent light bulb with a medium-sized E27 (Edison 27 mm) male screw base. The filament is visible as the mostly horizontal line between the vertical supply wires.
Illustration of the Argand lamp, which appears in Les meirvelles de la science, published in 1867 by Louis Figuier. Francois-Pierre-Amédée Argand was born in Geneva, Republic of Geneva, the ninth of ten children.
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 ...
The fluorescence of certain rocks and other substances had been observed for hundreds of years before its nature was understood. One of the first to explain it was Irish scientist Sir George Stokes from the University of Cambridge in 1852, who named the phenomenon "fluorescence" after fluorite, a mineral many of whose samples glow strongly because of impurities.
A General Electric NE-34 glow lamp, manufactured circa 1930. Neon was discovered in 1898 by William Ramsay and Morris Travers.The characteristic, brilliant red color that is emitted by gaseous neon when excited electrically was noted immediately; Travers later wrote, "the blaze of crimson light from the tube told its own story and was a sight to dwell upon and never forget."
Judd et al. then extended the reconstituted SPDs to 300 nm – 330 nm and 700 nm – 830 nm by using Moon's spectral absorbance data of the Earth's atmosphere. [14] The tabulated SPDs presented by the CIE today are derived by linear interpolation of the 10 nm data set down to 5 nm. [15] However, there is a proposal to use spline interpolation ...
LAMP (software bundle) (Linux, Apache, MySQL, PHP/Perl/Python) Library Access to Music Project, a free music library for MIT students; Localized Aviation MOS Program (LAMP), a model output statistics system used in weather prediction