calibrated scale
81Roberval Balance — The Roberval Balance is a weighing scale presented to the French Academy of Sciences by the French mathematician Gilles Personne de Roberval in 1669.In this scale, two identical horizontal beams are attached, one directly above the other, to a… …
82Solenoid voltmeter — A solenoid voltmeter is a specific type of voltmeter used by electricians in the testing of electrical power circuits. Wiggy is the registered trademark for a common solenoid voltmeter used in North America and manufactured by Square D, derived… …
83Tension ring — A tension ring is a type of finger ring in which the gemstone is held in place by pressure rather than prongs, a bezel or other mounting. The metal setting is actually spring loaded to exert pressure onto the gemstone, and tiny etchings/grooves… …
84Ridge detection — The ridges (or the ridge set) of a smooth function of two variables is a set of curves whose points are, loosely speaking, local maxima in at least one dimension. For a function of N variables, its ridges are a set of curves whose points are… …
85Ordnance Survey — Welsh: Arolwg Ordnans Non ministerial government department overview Formed 1791 ( …
86china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …
87China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …
88Fahrenheit — For other uses, see Fahrenheit (disambiguation). Thermometer with Fahrenheit and Celsius units Fahrenheit is the temperature scale proposed in 1724 by, and named after, the Dutch German Polish physicist Daniel Gabriel Fahrenheit (1686–1736).[ …
89Light meter — A light meter is a device used to measure the amount of light. In photography, a light meter is often used to determine the proper exposure for a photograph. Typically a light meter will include a computer, either digital or analogue, which… …
90Monochromator — in a x ray beamline at the Advanced Photon Source, Argonne National Laboratory. A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of… …
