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Potteries, the

(Encyclopedia)Potteries, the, area, c.9 mi (15 km) long and 3 mi (4.8 km) wide, Staffordshire, W central England, extending northwest-southeast in the upper Trent valley. The area includes Stoke-on-Trent and part o...

Steinberger, Jack

(Encyclopedia)Steinberger, Jack (Hans Jakob Steinberger), 1921–2020, American physicist, b. Kissingen, Germany, Ph.D. Univ. of Chicago, 1948. He and a brother were sent to the United States in 1934 as the Nazis r...

Welch, Jack

(Encyclopedia)Welch, Jack (John Francis Welch, Jr.), 1935–2020, American business executive, b. Salem, Mass., grad. Univ. of Massachusetts (1957); Univ. of Illinois (M.S., 1958; Ph.D., chemical engineering, 1960)...

Milan, city, Italy

(Encyclopedia)Milan mĭlănˈ, –änˈ [key], Ital. Milano, Lat. Mediolanum, city (1991 pop. 1,369,231), capital of Lombardy and of Milan prov., N Italy, at the heart of the Po basin. Because of its strategic posi...

pipe

(Encyclopedia)pipe, hollow structure, usually cylindrical, for conducting materials. It is used primarily to convey liquids, gases, or solids suspended in a liquid, e.g., a slurry. It is also used as a conduit for ...

pulley

(Encyclopedia)CE5 Pulleys: The mechanical advantage (MA) of a system of pulleys is equal to the number of supporting strands: in A MA=1 and in B MA=2. pulley, simple machine consisting of a wheel over which a r...

superconductivity

(Encyclopedia)superconductivity, abnormally high electrical conductivity of certain substances. The phenomenon was discovered in 1911 by Heike Kamerlingh Onnes, who found that the resistance of mercury dropped sudd...

Henry, Joseph

(Encyclopedia)Henry, Joseph, 1797–1878, American physicist, b. Albany, N.Y., educated at Albany Academy. He taught (1826–32) mathematics and natural philosophy at Albany Academy and was professor of natural phi...

Fremont

(Encyclopedia)Fremont frēˈmŏnt [key]. 1 City (2020 pop. 230,504), Alameda co., W Calif., on San Francisc...

Greensboro

(Encyclopedia)Greensboro. <1> City (2020 pop. 3,648), seat of Greene co., Ga.; inc. 1803 (town); 1855 (city). Founded in 1780, the town lies approx. halfway ...