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Fermi, Enrico

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

adhesion and cohesion

(Encyclopedia)adhesion and cohesion, attractive forces between material bodies. A distinction is usually made between an adhesive force, which acts to hold two separate bodies together (or to stick one body to anot...

Gestalt

(Encyclopedia)Gestalt gəshtältˈ [key] [Ger.,=form], school of psychology that interprets phenomena as organized wholes rather than as aggregates of distinct parts, maintaining that the whole is greater than the ...

Jackman, Wilbur Samuel

(Encyclopedia)Jackman, Wilbur Samuel, 1855–1907, American educator, b. Mechanicstown, Ohio, grad. Harvard, 1884. Jackman was a leader of the nature study movement in elementary schools. He taught (after 1889) at ...

Murray, Henry A.

(Encyclopedia)Murray, Henry A., 1893–1988, American psychologist, b. New York City. Murray was trained in a variety of disciplines, including psychology, chemistry, and biology. He taught at Harvard (1927–62), ...

fifth force

(Encyclopedia)fifth force, postulated fifth basic force of nature (the four known forces of nature are gravity, electromagnetism, and the strong and weak interactions). Proposed in 1986 to account for gravitational...

Court of Justice of the European Union

(Encyclopedia)Court of Justice of the European Union, judicial institution of the European Union (EU). Located in Luxembourg, it was founded in 1958 as the joint court for the three treaty organizations that were c...

New York, University of the State of

(Encyclopedia)New York, University of the State of, chartered 1784. It consists of all secondary and higher educational institutions incorporated in the state and other institutions, organizations, and agencies for...

Wisdom of Jesus the Son of Sirach

(Encyclopedia)Wisdom of Jesus the Son of Sirach sīˈrək [key]: see Sirach. ...

neutron star

(Encyclopedia)neutron star, extremely small, extremely dense star, with as much as double the sun's mass but only a few miles in radius, in the final stage of stellar evolution. Astronomers Baade and Zwicky predict...