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nuclear weapons

(Encyclopedia)nuclear weapons, weapons of mass destruction powered by atomic, rather than chemical, processes. Nuclear weapons produce large explosions and hazardous radioactive byproducts by means of either nuclea...

liquefaction

(Encyclopedia)liquefaction, change of a substance from the solid or the gaseous state to the liquid state. Since the different states of matter correspond to different amounts of energy of the molecules making up t...

secret society

(Encyclopedia)secret society, organization of initiated persons whose members, purposes, and rituals are kept secret. Human groups throughout history have maintained secret societies. The ceremonies of initiation i...

ethics

(Encyclopedia)ethics, in philosophy, the study and evaluation of human conduct in the light of moral principles. Moral principles may be viewed either as the standard of conduct that individuals have constructed fo...

Jesus (Jesus Christ)

(Encyclopedia)Jesus or Jesus Christ jēˈzəs krīst, jēˈzəz [key], 1st-century Jewish teacher and prophet in whom Christians have traditionally seen the Messiah [Heb.,=annointed one, whence Christ from the Gree...

Southeast Asian art and architecture

(Encyclopedia)Southeast Asian art and architecture includes works from the geographical area including the modern countries of Thailand, Cambodia, Laos, Vietnam, Myanmar (formerly Burma), Malaysia, Singapore and In...

Hebrides, the

(Encyclopedia)Hebrides, the hĕbˈrĭdēz [key], Western Isles, or Western Islands, group of more than 50 islands, W and NW Scotland. Less than a fifth of the islands are inhabited. The Outer Hebrides (sometimes al...

Tweed, William Marcy

(Encyclopedia)Tweed, William Marcy, 1823–78, American politician and Tammany leader, b. New York City. A bookkeeper, he became (1848) a volunteer fireman and as a result acquired influence in his ward. He was an ...

Welles, Orson

(Encyclopedia)Welles, Orson, 1915–85, American actor, director, and producer, b. Kenosha, Wis. From childhood he evinced a precocious talent and lofty sense of self-assurance in theatrical matters. He began actin...

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