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Piccard, Auguste

(Encyclopedia)Piccard, Auguste ōgüstˈ pēkärˈ [key], 1884–1962, Swiss physicist, b. Basel. He became a professor at the Univ. of Brussels in 1922. He and his twin brother Jean Felix (d. 1963) are known for t...

Pisanello

(Encyclopedia)Pisanello pēzänĕlˈlō [key], c.1395–1455?, Italian medalist, painter, and draftsman of the early Renaissance. He was also called Vittore Pisano, but his real name was Antonio Pisano. His art sho...

Orléans, French royal family

(Encyclopedia)Orléans ôrlāäNˈ [key], family name of two branches of the French royal line. The house of Valois-Orléans was founded by Louis, duc d'Orléans (see separate article), whose assassination (1407) c...

mendelevium

(Encyclopedia)mendelevium mĕndəlāvˈēəm [key], artificially produced radioactive chemical element; symbol Md; at. no. 101; mass no. of most stable isotope 258; m.p. 827℃; b.p. and sp. gr. unknown; valence +1...

motivation

(Encyclopedia)motivation, in psychology, the intention of achieving a goal, leading to goal-directed behavior. Some human activity seems to be best explained by postulating an inner directing drive. While a drive i...

Maurice, duke and elector of Saxony

(Encyclopedia)Maurice, 1521–53, duke (1541–47) and elector (1547–53) of Saxony. A member of the Albertine branch of the ruling house of Saxony, he became duke of Albertine Saxony during the Protestant Reforma...

Reed, Ishmael Scott

(Encyclopedia) Reed, Ishmael Scott, 1938- , African-American novelist, poet, and social critic, b. Chattanooga, Tn. When he was a child, Reed’s family moved ...

Teapot Dome

(Encyclopedia)Teapot Dome, in U.S. history, oil reserve scandal that began during the administration of President Harding. In 1921, by executive order of the President, control of naval oil reserves at Teapot Dome,...

Beck, Aaron Tempkin

(Encyclopedia) Beck, Aaron Tempkin, 1921-2021, American psychiatrist, b. Providence, R.I., Brown Univ. (B.A., 1942), Yale Univ. (M.D., 1946). Following earning his me...

Reynolds, Debbie

(Encyclopedia) Reynolds, Debbie, 1932-2016, American actress, singer, and dancer, b. El Paso, Tx., as Mary Frances Reynolds. Reynolds’ family relocated from El Paso...