powder photography

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• powder photography — noun a process for identifying minerals or crystals; a small rod is coated with a powdered form of the substance and subjected to suitably modified X rays; the pattern of diffracted rings is used for identification • Syn: ↑powder method, ↑powder… …   Useful english dictionary

• powder method — noun a process for identifying minerals or crystals; a small rod is coated with a powdered form of the substance and subjected to suitably modified X rays; the pattern of diffracted rings is used for identification • Syn: ↑powder photography,… …   Useful english dictionary

• powder technique — noun a process for identifying minerals or crystals; a small rod is coated with a powdered form of the substance and subjected to suitably modified X rays; the pattern of diffracted rings is used for identification (Freq. 1) • Syn: ↑powder… …   Useful english dictionary

• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

• Flash (photography) — The furious wing action of a Hummingbird Hawk moth is frozen by flash. The flash has given the foreground more illumination than the background. See Inverse square law A flash is a device used in photography producing a flash of artificial light… …   Wikipedia

• Flash powder — is a pyrotechnic composition, a mixture of oxidizer and metallic fuel which burns quickly and if confined will produce a loud report. It is widely used in theatrical pyrotechnics and fireworks (namely salutes, eg. cherry bombs, M 80s, and… …   Wikipedia

• tartaric acid — tar•tar′ic ac′id [[t]tɑrˈtær ɪk, ˈtɑr [/t]] n. chem. an organic compound, C4H6O6, occurring in four isomeric forms: used in effervescent beverages, baking powder, photography, and tanning …   From formal English to slang

• Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

• Contributors — ▪ 2000       Adams, Andy. Editor and Publisher, Sumo World. Author of Sumo; Sumo World Record Book. • sports and games: Judo; Wrestling: Sumo       Ahn, Ki suk. Assistant Editor, Shindonga of Donga Ilbo. • biographies (in part)       Alder,… …   Universalium

• photoengraving — /foh toh en gray ving/, n. 1. a photographic process of preparing printing plates for letterpress printing. 2. a plate so produced. 3. a print made from it. [1870 75; PHOTO + ENGRAVING] * * * Any of several processes for producing printing plates …   Universalium

• Chester Carlson — Chester Floyd Carlson Born February 8, 1906(1906 02 08) Seattle, Washington, United States Died September 19, 1968(1968 …   Wikipedia