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plasma

(Encyclopedia) plasma, in physics, fully ionized gas of low density, containing approximately equal numbers of positive and negative ions (see electron and ion). It is electrically conductive and is…

Organization of Petroleum Exporting Countries

(Encyclopedia) Organization of Petroleum Exporting Countries (OPEC), multinational organization (est. 1960, formally constituted 1961) that coordinates petroleum policies and economic aid among oil-…

Olbers, Heinrich Wilhelm Matthäus

(Encyclopedia) Olbers, Heinrich Wilhelm MatthäusOlbers, Heinrich Wilhelm Matthäushīnˈrĭkh vĭlˈhĕlm mätĕˈ&oobreve;s ôlˈbərs [key], 1758–1840, German astronomer and physician. He originated (1797)…

Soleri, Paolo

(Encyclopedia) Soleri, Paolo, 1919–2013, Italian-American architect. He studied architecture in his native Turin (Ph.D., 1946). Soleri's works have been influenced by both Frank Lloyd Wright, with…

supersymmetry

(Encyclopedia) supersymmetry, in physics, theory concerning the relationship of the elementary particles called boson to those known as fermions, and vice versa, and linking the four fundamental…

Alvarez, Luis Walter

(Encyclopedia) Alvarez, Luis Walter, 1911–88, American physicist, b. San Francisco, grad. Univ. of Chicago, 1932, Ph.D. 1936. He was awarded the 1968 Nobel Prize in Physics for his discovery of a…

Fermi, Enrico

(Encyclopedia) Fermi, EnricoFermi, Enricoĕnrēˈkō fĕrˈmē [key], 1901–54, American physicist, b. Italy. He studied at Pisa, Göttingen, and Leiden, and taught physics at the universities of Florence and…

chiropractic

(Encyclopedia) chiropracticchiropractickīrəprăkˈtĭk [key] [Gr.,=doing by hand], medical practice based on the theory that all disease results from a disruption of the functions of the nerves. The…

Uppsala

(Encyclopedia) UppsalaUppsalaŭpˈsələ, –säˌlä [key], city (1990 pop. 109,500), capital of Uppsala co., E Sweden, on the Fyrisån River. It is an industrial and cultural center and a railroad junction.…

California, University of

(Encyclopedia) California, University of, at ten campuses, main campus at Berkeley; land-grant and state supported; coeducational; chartered 1868, opened 1869 when it took over the College of…