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diminishing returns, law of

(Encyclopedia)diminishing returns, law of, in economics, law stating that if one factor of production is increased while the others remain constant, the overall returns will relatively decrease after a certain poin...

Ningxia Hui Autonomous Region

(Encyclopedia)Ningxia Hui Autonomous Region nĭngˈshyäˈ hwē [key], autonomous region (2010 pop. 6,301,350), c.25,600 sq mi (66,321 sq km), N China. The capital is Yinchuan. Ningxia is part of the Inner Mongolia...

Prince of Wales Island, United States

(Encyclopedia)Prince of Wales Island, 2,231 sq mi (5,778 sq km), off SE Alaska; largest island of the Alexander Archipelago. The island is heavily forested, but has little arable land, no source of freshwater, and ...

Maurice of Nassau

(Encyclopedia)Maurice of Nassau năsˈô [key], 1567–1625, prince of Orange (1618–25); son of William the Silent by Anne of Saxony. He became stadtholder of Holland and Zeeland after the assassination (1584) of...

Book of Common Prayer

(Encyclopedia)Book of Common Prayer, title given to the service book used in the Church of England and in other churches of the Anglican Communion. The first complete English Book of Common Prayer was produced, mai...

Henry IV, king of France

(Encyclopedia)Henry IV, 1553–1610, king of France (1589–1610) and, as Henry III, of Navarre (1572–1610), son of Antoine de Bourbon and Jeanne d'Albret; first of the Bourbon kings of France. Henry's marri...

cluster munitions

(Encyclopedia)cluster munitions or cluster bombs, air-dropped or ground-launched weapons that open in mid-air and scatter dozens, hundreds, or thousands of smaller submunitions (or bomblets) over a wide area. Such ...

Midwest

(Encyclopedia)Midwest or Middle West, region of the United States centered on the western Great Lakes and the upper-middle Mississippi valley. It is a somewhat imprecise term that has been applied to the northern s...

doldrums

(Encyclopedia)doldrums dŏlˈdrəmz [key] or equatorial belt of calms, area around the earth centered slightly north of the equator between the two belts of trade winds. The large amount of solar radiation that arr...

torsion balance

(Encyclopedia)torsion balance, instrument used to measure small forces. It is based on the principle that a wire or thread resists twisting with a force that is proportional to the stress. The torsion balance consi...