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pendulum
(Encyclopedia) pendulum, a mass, called a bob, suspended from a fixed point so that it can swing in an arc determined by its momentum and the force of gravity. The length of a pendulum is the…clock
(Encyclopedia) CE5 A pendulum clock: Weight-driven clock mechanism clock, instrument for measuring and indicating time. Predecessors of the clock were the sundial, the hourglass, and the…megatherium
(Encyclopedia) megatheriummegatheriummĕgəthērˈēəm [key] [Gr.,=large beast], extinct ground sloth, of the genus Megatherium, that was widely distributed in North and South America in the Pleistocene…iron lung
(Encyclopedia) iron lung, device used to maintain artificial respiration over an extended period of time. Before the successful vaccination program against poliomyelitis, it was used mostly in…Chamberlin, Guy
(Encyclopedia) Chamberlin, Guy (Berlin Guy “Champ” Chamberlin), 1894–1967, American football coach and player, b. Blue Springs, Neb., grad. Univ. of Nebraska, 1916. Chamberlin was one of the greatest…Robinson, Sugar Ray
(Encyclopedia) Robinson, Sugar Ray, 1920–89, American boxer, b. Detroit as Walker Smith, Jr. He began boxing after three years of high school in New York City. Having won all his amateur fights (…Ratas, Jüri
(Encyclopedia) Ratas, Jüri, 1978–, Estonian political leader. A member of the Center party, a populist party with strong support among ethnic Russians, Ratas was mayor of Talinn (2005–7), before…Baius, Michael
(Encyclopedia) Baius or Bajus, MichaelBaius or Bajus, Michaelbāˈyəs, bāˈjəs [key], 1513–89, Flemish Roman Catholic theologian, also known as Michel de Bay. He was chancellor of the Univ. of Louvain…Poopó
(Encyclopedia) PoopóPoopópōˌōpōˈ [key], salt lake, on the high plateau of W Bolivia. It is more than 11,000 ft (3,353 m) above sea level. Although it is Bolivia's second largest lake (965 sq mi/2,499…obscenity
(Encyclopedia) obscenity, in law, anything that tends to corrupt public morals by its indecency. The moral concepts that the term connotes vary from time to time and from place to place. In the…Trending
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