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Vorster, Balthazar Johannes

(Encyclopedia)Vorster, Balthazar Johannes yōhänˈəs bältäzärˈ fôrˈstər [key], 1915–83, South African political leader. A lawyer, John Vorster became involved in the Afrikaner nationalist movement and he...

scandium

(Encyclopedia)scandium skănˈdēəm [key], metallic chemical element; symbol Sc; at. no. 21; at. wt. 44.95591; m.p. 1,541℃; b.p. 2,831℃; sp. gr. 2.99 at 20℃; valence +3. Scandium is a soft silver-white metal...

Schindler, Oskar

(Encyclopedia)Schindler, Oskar, 1908–74, German industrialist who saved more than a thousand Jews during the Holocaust. A Catholic and a member of the National Socialist (Nazi) party, Schindler relocated (1939) t...

Shiller, Robert James

(Encyclopedia)Shiller, Robert James, 1946–, American economist, b. Detroit, grad. Univ. of Michigan (B.A., 1967), Massachusetts Institute of Technology (S.M., 1968; Ph.D., 1972). A professor at Yale since 1982, S...

sap

(Encyclopedia)sap, fluid in plants consisting of water and dissolved substances. Cell sap refers to this fluid present in the large vacuole, or cell cavity, that occupies most of the central portion of mature plant...

celestial mechanics

(Encyclopedia)celestial mechanics, the study of the motions of astronomical bodies as they move under the influence of their mutual gravitation. Celestial mechanics analyzes the orbital motions of planets, dwarf pl...

cement

(Encyclopedia)cement, binding material used in construction and engineering, often called hydraulic cement, typically made by heating a mixture of limestone and clay until it almost fuses and then grinding it to a ...

ink

(Encyclopedia)ink, pigmented fluid used for writing and drawing, or a viscous compound used for printing, both of various colors but most frequently black. The oldest known variety, India ink or China ink, is still...

mediation

(Encyclopedia)mediation, in law, type of intervention in which the disputing parties accept the offer of a third party to recommend a solution for their controversy. Mediation has long been a part of international ...

mineral

(Encyclopedia)mineral, inorganic substance occurring in nature, having a characteristic and homogeneous chemical composition, definite physical properties, and, usually, a definite crystalline form. A few of the mi...