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International Geophysical Year

(Encyclopedia)International Geophysical Year (IGY), 18-month period from July, 1957, through Dec., 1958, during a period of maximum sunspot activity, designated for cooperative study of the solar-terrestrial enviro...

Helena

(Encyclopedia)Helena. 1 City (2020 pop. 20,633), Jefferson and Shelby cos., central Ala.; inc. 1877. White settlers began to occupy the area after the War of ...

Gell-Mann, Murray

(Encyclopedia)Gell-Mann, Murray gĕlˈ-män [key], 1929–2019, American theoretical physicist, b. New York City, grad. Yale 1948, Ph.D. Massachusetts Institute of Technology, 1951. He was associated with the Univ....

Ono, Yoko

(Encyclopedia) Ono, Yoko, 1933- , Japanese-American conceptual artist, songwriter, and recording artist, b. Tokyo, Japan. Ono’s father was a banker and her mother ...

performance art

(Encyclopedia)performance art, multimedia art form originating in the 1970s in which performance is the dominant mode of expression. Perfomance art may incorporate such elements as instrumental or electronic music,...

Baldwin, Robert

(Encyclopedia)Baldwin, Robert, 1804–58, Canadian statesman, leader of the movement for representative government in Canada, b. York (now Toronto), Ont. His father, William Warren Baldwin (1775–1844), was a lead...

Zola, Émile

(Encyclopedia)Zola, Émile āmēlˈ zôläˈ [key], 1840–1902, French novelist, b. Paris. He was a professional writer, earning his living through journalism and his novels. About 1870 he became the apologist for...

reading, mental process

(Encyclopedia)reading, process of mentally interpreting written symbols. Facility in reading is an essential factor in educational progress, and instruction in this basic skill is a primary purpose of elementary ed...

psychosomatic medicine

(Encyclopedia)psychosomatic medicine sīˌkōsōmătˈĭk [key], study and treatment of those emotional disturbances that are manifested as physical disorders. The term psychosomatic emphasizes essential unity of t...

conservatism

(Encyclopedia)conservatism, in politics, the desire to maintain, or conserve, the existing order. Conservatives value the wisdom of the past and are generally opposed to widespread reform. Modern political conserva...