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inclined plane

(Encyclopedia) CE5 Inclined plane inclined plane, simple machine, consisting of a sloping surface, whose purpose is to reduce the force that must be applied to raise a load. To raise a body…

Bach

(Encyclopedia) BachBachbäkh [key], German family of distinguished musicians who flourished from the 16th through the 18th cent., its most renowned member being Johann Sebastian Bach (see separate…

Alexander, king of Yugoslavia

(Encyclopedia) Alexander, 1888–1934, king of Yugoslavia (1921–34), son and successor of Peter I. Of the Karadjordjević family, he was educated in Russia and became crown prince of Serbia upon the…

dream

(Encyclopedia) dream, mental activity associated with the rapid-eye-movement (REM) period of sleep. It is commonly made up of a number of visual images, scenes or thoughts expressed in terms of…

Jericho, city, West Bank

(Encyclopedia) JerichoJerichojĕrˈĭkō [key] [Heb.,=fragrant, or city of the moon god], Arab. Ariha, town (2003 est. pop. 19,000), West Bank, in the Jordan valley N of the Dead Sea; nearby is the site…

Piaget, Jean

(Encyclopedia) Piaget, JeanPiaget, JeanzhäNpyäˈjā [key], 1896–1980, Swiss psychologist, known for his research in developmental psychology. After receiving a degree in zoology from the Univ. of…

Weegee

(Encyclopedia) Weegee, pseud. of Arthur Fellig, 1899–1968, American photojournalist, b. Zolochiv, Ukraine (then in Austria-Hungary) as Usher Fellig. His family immigrated (1910) to New York City,…

industrial management

(Encyclopedia) industrial management, term applied to highly organized modern methods of carrying on industrial, especially manufacturing, operations. Modern technological devices, particularly in…

airship

(Encyclopedia) airship, an aircraft that consists of a cigar-shaped gas bag, or envelope, filled with a lighter-than-air gas to provide lift, a propulsion system, a steering mechanism, and a gondola…

automobile

(Encyclopedia) CE5 Automobile chassis CE5 Two views of a six-cylinder automobile engine automobile, self-propelled vehicle used for travel on land. The term is commonly applied to a four-…