(Encyclopedia) wave, in physics, the transfer of energy by the regular vibration, or oscillatory motion, either of some material medium or by the variation in magnitude of the field vectors of an…
(Encyclopedia) Boyle, Kay, 1903–93, American writer, b. St. Paul, Minn. A European expatriate in the interwar years, she returned to Europe as a correspondent for the New Yorker (1946–53) and…
(Encyclopedia) Hereward the WakeHereward the Wakehĕrˈĭwərd [key], fl. 1070, Anglo-Saxon rebel against William I. A thane, he apparently held land in Lincolnshire. In 1070 he sacked Peterborough with…
(Encyclopedia) sleet, precipitation of small, partially melted grains of ice. As raindrops fall from clouds, they pass through layers of air at different temperatures. If they pass through a layer…
(Encyclopedia) Benet, JuanBenet, Juanbənetˈ [key], 1927–93, Spanish novelist and essayist. He earned a degree in civil engineering and worked as a highway engineer before publishing (1961) his first…
(Encyclopedia) era of good feelings, period in U.S. history (1817–23) when, the Federalist party having declined, there was little open party feeling. After the War of 1812 all sections were anxious…
(Encyclopedia) monopolymonopolymənōpˈəlē [key], market condition in which there is only one seller of a certain commodity; by virtue of the long-run control over supply, such a seller is able to…
(Encyclopedia) chemical equilibrium, state of balance in which two opposing reversible chemical reactions proceed at constant equal rates with no net change in the system. For example, when hydrogen…
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