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composition board

(Encyclopedia) composition board, wood product produced in the form of a board or sheet, formed of cellulose fibers or particles derived from wood or other sources, and used principally as a building…

Ashkin, Arthur

(Encyclopedia) Ashkin, Arthur, 1922–2020, American physicist, b. Brooklyn, N.Y., Ph.D. Cornell, 1952. Ashkin worked for four decades at Bell Laboratories, retiring in 1992. Ashkin researched…

Marconi, Guglielmo, Marchese

(Encyclopedia) Marconi, Guglielmo, MarcheseMarconi, Guglielmo, Marcheseg&oomacr;lyĕlˈmō märkāˈzā märkôˈnē [key], 1874–1937, Italian physicist, celebrated for his development of wireless…

Knowles, William Standish

(Encyclopedia) Knowles, William Standish, 1917–2012, American chemist, b. Taunton, Mass., Ph.D. Columbia, 1942. He was a research chemist at the Monsanto Company for his entire career (1942–86).…

electrostatics

(Encyclopedia) electrostatics, study of phenomena associated with charged bodies at rest (see charge; electricity). A charged body has an excess of positive or negative charges, a condition usually…

Bjerknes, Vilhelm Frimann Koren

(Encyclopedia) Bjerknes, Vilhelm Frimann KorenBjerknes, Vilhelm Frimann Korenvĭlˈhĕlm frēˈmän kôˈrən byĕrkˈnĕs [key], 1862–1951, Norwegian physicist and pioneer in modern meteorology. He worked on…

sodium carbonate

(Encyclopedia) sodium carbonate, chemical compound, Na2CO3, soluble in water and very slightly soluble in alcohol. Pure sodium carbonate is a white, odorless powder that absorbs moisture from the air…

Shapley, Lloyd Stowell

(Encyclopedia) Shapley, Lloyd StowellShapley, Lloyd Stowellshăpˈlē [key], 1923–2016, American mathematician and economist, b. Cambridge, Mass., Ph.D Princeton, 1953; son of Harlow Shapley. He worked…

Noyori, Ryoji

(Encyclopedia) Noyori, Ryoji, 1938–, Japanese chemist, D.Eng. Kyoto Univ., 1967. Noyori was an instructor at Kyoto Univ. from 1963 to 1968. He then joined the faculty at Nagoya Univ., where he is a…

pitot static system

(Encyclopedia) pitot static systempitot static systempētōˈ [key], device for measuring the rate at which a fluid flows. Among the principal applications of the device are an airspeed indicator for…