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chain reaction

(Encyclopedia) CE5 Chain reaction: A neutron (n) strikes the uranium nucleus (U-235), causing it to split into fission products A and B and release two neutrons. These neutrons can in turn cause…

Romains, Jules

(Encyclopedia) Romains, JulesRomains, Juleszhül rômăNˈ [key], 1885–1972, French writer, whose original name was Louis Farigoule. A brilliant student of philosophy, he became known as the chief…

Rugby, town, England

(Encyclopedia) Rugby, town (1991 pop. 59,039), Warwickshire, central England. An important railroad junction and engineering center, Rugby is the seat of one of England's most esteemed public schools…

specific heat

(Encyclopedia) specific heat, ratio of the heat capacity of a substance to the heat capacity of a reference substance, usually water. Heat capacity is the amount of heat needed to change the…

Rank, Otto

(Encyclopedia) Rank, OttoRank, Ottoôtˈō rängk [key], 1884–1937, Austrian psychoanalyst; one of Sigmund Freud's first and most valued pupils. He early employed Freudian techniques to clarify the…

license

(Encyclopedia) license, in public law, permission by legal authority to engage in certain acts and also the document showing such permission. Some licenses are required for the protection of the…

episome

(Encyclopedia) episomeepisomeĕpˈĭsōm [key], unit of genetic material composed of a series of genes that sometimes has an independent existence in a host cell and at other times is integrated into a…

Green, Thomas Hill

(Encyclopedia) Green, Thomas Hill, 1836–82, English idealist philosopher. Educated at Oxford, he was associated with the university all his life. He was professor of moral philosophy there from 1878…

Andronicus I

(Encyclopedia) Andronicus I (Andronicus Comnenus)Andronicus Iăndrənīˈkəs kŏmnēˈnəs [key], 1120?–1185, Byzantine emperor (1183–85), nephew of John II. He acceded to the throne by strangling his cousin…