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ejido

(Encyclopedia)ejido āhēˈᵺō [key] [Span.,=common land], in Mexico, agricultural land expropriated from large private holdings and redistributed to communal farms. Communal ownership of land had been widely pra...

John Birch Society

(Encyclopedia)John Birch Society, ultraconservative, anti-Communist organization in the United States. It was founded in Dec., 1958, by manufacturer Robert Welch, headquartered in Belmont, Mass., and named after Jo...

Kelvin, William Thomson, 1st Baron

(Encyclopedia)Kelvin, William Thomson, 1st Baron, 1824–1907, British mathematician and physicist, b. Belfast. He was professor of natural philosophy at the Univ. of Glasgow (1846–99). He is known especially for...

Philip Neri, Saint

(Encyclopedia)Philip Neri, Saint nāˈrē [key], 1515–95, Italian reformer. His original name was Filippo Romolo de' Neri. From boyhood he was religious, and in 1533 he went to Rome to study. From about 1537 on, ...

wind tunnel

(Encyclopedia)wind tunnel, apparatus for studying the interaction between a solid body and an airstream. A wind tunnel simulates the conditions of an aircraft in flight by causing a high-speed stream of air to flow...

Abd al-Majid

(Encyclopedia)Abd al-Majid Turk. äbdülˈ mäjēdˈ [key], 1823–61, Ottoman sultan (1839–61), son and successor of Mahmud II to the throne of the Ottoman Empire. The rebellion of Muhammad Ali was checked by th...

bimetallism

(Encyclopedia)bimetallism bīmĕtˈəlĭzˌəm [key], in economic history, monetary system in which two commodities, usually gold and silver, were used as a standard and coined without limit at a ratio fixed by leg...

cerebellum

(Encyclopedia)cerebellum sĕrˌəbĕlˈəm [key], portion of the brain that coordinates movements of voluntary (skeletal) muscles. It contains about half of the brain's neurons, but these particular nerve cells are...

television

(Encyclopedia)CE5 Video transmission and reception of color and black-and-white television: The camera lens focuses collected light rays into mirrors, which separate the image into its three primary color compon...

sunspots

(Encyclopedia)sunspots, dark, usually irregularly shaped spots on the sun's surface that are actually solar magnetic storms. The spots are darker because the temperature of the spots is lower than that of the surro...