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evil

(Encyclopedia) evil, antithesis of good. The philosophical problem of evil is most simply stated in the question, why does evil exist in the world? Death, disease, and sin are often included in the…

Blitzstein, Marc

(Encyclopedia) Blitzstein, Marc (Marcus Samuel Blitzstein), 1905–64, American composer, pianist, and librettist, b. Philadelphia. After attending the Univ. of Pennsylvania and the Curtis Institute of…

calcium hydroxide

(Encyclopedia) calcium hydroxide, Ca(OH)2, colorless crystal or white powder. It is prepared by reacting calcium oxide (lime) with water, a process called slaking, and is also known as hydrated lime…

Butler, Joseph

(Encyclopedia) Butler, Joseph, 1692–1752, English bishop and exponent of natural theology. Butler held a series of church offices, ending his career as bishop of Durham. His principle writings are…

tuning systems

(Encyclopedia) tuning systems, methods for assigning pitches to the twelve Western pitch names that constitute the octave. The term usually refers to this procedure in the tuning of keyboard…

Taurus, in astronomy

(Encyclopedia) Taurus [Lat.,= the bull], in astronomy, constellation NW of Orion and lying on the ecliptic (the sun's apparent path through the heavens) between Gemini and Aries; it is one of the…

Cameron of Lochiel, Sir Ewen

(Encyclopedia) Cameron of Lochiel, Sir Ewen or EvanCameron of Lochiel, Sir Ewen or Evankămˈərən, lŏkh-ēlˈ [key], 1629–1719, chief of the Scottish highland clan of Cameron after 1647. On behalf of…

Babenberg

(Encyclopedia) BabenbergBabenbergbäˈbənbĕrk [key], ruling house of Austria (976–1246). It possibly descended from, or succeeded, a powerful Franconian family of the 9th cent. from whose castle the…

propagation of plants

(Encyclopedia) propagation of plants is effected in nature chiefly sexually by the seed and the spore, less often by rhizomes and other methods (see reproduction). Vegetative means include cutting,…

Baldessari, John

(Encyclopedia) Baldessari, John (John Anthony Baldessari), 1931–2020, American artist, b. National City, Calif., grad. San Diego State College (now Univ.; B.A., 1953; M.F.A., 1957). A founder of…