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Boolean algebra
(Encyclopedia) Boolean algebraBoolean algebrab&oomacr;ˈlēən [key], an abstract mathematical system primarily used in computer science and in expressing the relationships between sets (groups of…Walker, Alice
(Encyclopedia) Walker, Alice, 1944–, African-American novelist and poet, b. Eatonon, Ga. The daughter of sharecroppers, she studied at Spelman College (1961–63) and Sarah Lawrence College (B.A., 1965…Bergson, Henri
(Encyclopedia) Bergson, HenriBergson, HenriäNrēˈ bĕrgsôNˈ [key], 1859–1941, French philosopher. He became a professor at the Collège de France in 1900, devoted some time to politics, and, after World…Frayn, Michael
(Encyclopedia) Frayn, Michael, 1933–, English playwright and novelist, b. London. After graduating from Cambridge he worked as a reporter and columnist for the Manchester Guardian and the Observer.…Angelou, Maya
(Encyclopedia) Angelou, MayaAngelou, Mayamīˈə ănˈjəl&oomacr; [key], 1928–2014, African-American writer and performer, b. St. Louis, Mo., as Marguerite Johnson. She toured Europe and Africa in the…exposition
(Encyclopedia) exposition or exhibition, term frequently applied to an organized public fair or display of industrial and artistic productions, designed usually to promote trade and to reflect…Murray, James Stuart, 1st earl of
(Encyclopedia) Murray or Moray, James Stuart, 1st earl ofMurray or Moray, James Stuart, 1st earl ofboth: mûrˈē [key], 1531?–1570, Scottish nobleman. An illegitimate son of James V by a daughter of…Young Plan
(Encyclopedia) Young Plan, program for settlement of German reparations debts after World War I. It was presented by the committee headed (1929–30) by Owen D. Young. After the Dawes Plan was put into…zero
(Encyclopedia) zero, that number which, when added to any number, leaves the latter unchanged; its symbol is 0. The introduction of zero into the decimal system was the most significant achievement…Babel, Isaac Emmanuelovich
(Encyclopedia) Babel, Isaac EmmanuelovichBabel, Isaac Emmanuelovichēˈsäk əmän&oomacr;āˈləvĭch bäˈbəl [key], 1894–1940, Russian writer, b. Odessa. Babel was quick to embrace the Bolshevik…Trending
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