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government
(Encyclopedia)government, system of social control under which the right to make laws, and the right to enforce them, is vested in a particular group in society. There are many classifications of government. Accord...calculus of variations
(Encyclopedia)calculus of variations, branch of mathematics concerned with finding maximum or minimum conditions for a relationship between two or more variables that depends not only on the variables themselves, a...Santayana, George
(Encyclopedia)Santayana, George säntäyäˈnä [key], 1863–1952, American philosopher and poet, b. Madrid, Spain. Santayana's philosophic stance has been given the apparently opposite descriptions of materiali...Gesualdo, Carlo
(Encyclopedia)Gesualdo, Carlo kärˈlō jāzo͞oälˈdō [key], Prince of Venosa, c.1560–1613, Italian composer. Gesualdo's first musical work was published in 1585. His complex later madrigals, contained in the ...Evenki Autonomous Area
(Encyclopedia)Evenki Autonomous Area ĕvyĕnˈkē [key], former administrative division, 287,645 sq mi (745,000 sq km), N ...pumice
(Encyclopedia)pumice pŭmˈĭs [key], volcanic glass formed by the solidification of lava that is permeated with gas bubbles. Usually found at the surface of a lava flow, it is colorless or light gray and has the g...supernova
(Encyclopedia)supernova, a massive star in the latter stages of stellar evolution that suddenly contracts and then explodes, increasing its energy output as much as a billionfold. Supernovas are the principal distr...dark matter
(Encyclopedia)dark matter, material that is believed to make up nearly 27% of the mass of the universe but is not readily visible because it neither emits nor reflects electromagnetic radiation, such as light or ra...amphibole
(Encyclopedia)amphibole ămˈfəbōlˌ [key], any of a group of widely distributed rock-forming minerals, magnesium-iron silicates, often with traces of calcium, aluminum, sodium, titanium, and other elements. The ...Ampère, André Marie
(Encyclopedia)Ampère, André Marie ămˈpēr; Fr. äNdrāˈ märēˈ äNpĕrˈ [key], 1775–1836, French physicist, mathematician, and natural philosopher. He was professor of mathematics at the École Polytechni...Browse by Subject
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