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Guericke, Otto von
(Encyclopedia)Guericke, Otto von ôˈtō fən gāˈrĭkə [key], 1602–86, German physicist, noted for his study of pneumatics. He carried out his most important researches while burgomaster (1646–81) of Magdebu...Logan, Sir William Edmond
(Encyclopedia)Logan, Sir William Edmond, 1798–1875, Canadian geologist. Educated in England, he managed (1831–38) coal mines and a copper smelter in Wales. In addition to making studies of clays underlying coal...niello
(Encyclopedia)niello nēĕlˈō [key] [Ital. from Latin nigellus=blackish], black metallic alloy of sulfur, copper, silver, and usually lead, used as an inlay on engraved metal. The metal surface is brushed with a ...Nakhon Ratchasima
(Encyclopedia)Nakhon Ratchasima kōrätˈ [key], city (1990 pop. 204,121), capital of Nakhon Ratchasima prov., S central Thailand, on the Mun River. Strategically located near the mountain pass leading from the cen...mezzotint
(Encyclopedia)mezzotint mĕtˈsətĭnt, mĕdˈzə–, mĕzˈə– [key] [Ital.,=halftint], method of copper or steel engraving in tone. A Dutch officer, Ludwig von Siegen, is given credit for the invention of mezzo...photoengraving
(Encyclopedia)photoengraving, photomechanical process in the graphic arts, used principally for reproducing illustrations. The subject is photographed, and the image is recorded on a sensitized metal plate, which i...Pechenga
(Encyclopedia)Pechenga pyĕˈchĭn-gə [key], Finnish Petsamo, town, NW European Russia, an ice-free port at the head of Pechenga Fjord on the Barents Sea and near the Norwegian border. It is also the northern term...galvanizing
(Encyclopedia)galvanizing, process of coating a metal, usually iron or steel, with a protective covering of zinc. Galvanized iron is prepared either by dipping iron, from which rust has been removed by the action o...Brill
(Encyclopedia)Brill or Bril, Flemish painters, brothers. Mattys Brill mäˈtīs [key], 1550–83, went to Rome early in his career and executed frescoes for Gregory XIII in the Vatican. Paul Brill, 1554–1626, pro...Buell, Abel
(Encyclopedia)Buell, Abel byo͞oˈəl [key], 1742–1822, American silversmith, engraver, and type founder, b. Killingworth, Conn. He engraved a number of maps, including maps of the Florida coast and a large wall ...Browse by Subject
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