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Papin, Denis

(Encyclopedia)Papin, Denis dənēˈ päpăNˈ [key], 1647–1712?, French physicist and inventor. He was an assistant of Christian Huygens and of Robert Boyle and was professor of mathematics at the Univ. of Marbur...

Holland, city, United States

(Encyclopedia)Holland, city (2020 pop. 34,378), Allegan and Ottawa counties, SW Mich., near Lake Michigan, on Lake Macatawa, in a dairy and poultry area; founded 1847...

isobar

(Encyclopedia)isobar īˌsəbărˈĭk [key], line drawn on a weather map through points of equal atmospheric pressure. Isobars are used to define cyclones (low-pressure regions) and anticyclones (high-pressure regi...

ecliptic coordinate system

(Encyclopedia)ecliptic coordinate system, an astronomical coordinate system in which the principal coordinate axis is the ecliptic, the apparent path of the sun through the heavens. The ecliptic poles are the two p...

Guéret

(Encyclopedia)Guéret gārāˈ [key], town, capital of Creuse dept., central France. It is a market center ...

judo

(Encyclopedia)judo jo͞oˈdō [key], sport of Japanese origin that makes use of the principles of jujitsu, a weaponless system of self-defense. Buddhist monks in China, Japan, and Tibet developed jujitsu over a per...

non-Euclidean geometry

(Encyclopedia)non-Euclidean geometry, branch of geometry in which the fifth postulate of Euclidean geometry, which allows one and only one line parallel to a given line through a given external point, is replaced b...

Montluçon

(Encyclopedia)Montluçon môNlüsôNˈ [key], town (1990 pop. 46,660), Allier dept., central France, on the Cher River. Industry developed in the 19th cent. because of nearby coal fields in Commentry and iron-ore d...

Malone, Karl Anthony

(Encyclopedia)Malone, Karl Anthony, 1963–, American basketball player, b. Summerfield, La. He played basketball at Louisiana Tech Univ. and joined the Utah Jazz of the National Basketball Association in 1985. A p...

Santa Clara, city, United States

(Encyclopedia)Santa Clara sănˈtə klârˈə [key], city (1990 pop. 93,613), Santa Clara co., W Calif.; inc. 1852. Part of the Silicon Valley high-technology manufacturing complex, the city produces a variety of e...