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signaling
(Encyclopedia) signaling, transmission of information by visible, audible, or other detectable means. Since prehistoric times humans have sought and employed ever more effective means of…Great Migration
(Encyclopedia) Great Migration, in U.S. history. 1 The migration of Puritans to New England from England, 1620–40, prior to the English civil war. As a result of the increasingly tyrannical rule of…Ashbery, John
(Encyclopedia) Ashbery, John, 1927–2017, American poet, b. Rochester, N.Y., grad. Harvard (B.A., 1949), Columbia (M.A., 1951). Among the most acclaimed and influential American poets of his era, he…tornado
(Encyclopedia) tornado, dark, funnel-shaped cloud containing violently rotating air that develops below a heavy cumulonimbus cloud mass and extends toward the earth. The funnel twists about, rises…Douglass, Frederick
(Encyclopedia) Douglass, FrederickDouglass, Frederickdŭgˈləs [key], c.1818–1895, American abolitionist, b. near Easton, Md. as Frederick Augustus Washington Bailey. The son of a black slave, Harriet…Williams, Tennessee
(Encyclopedia) Williams, Tennessee (Thomas Lanier Williams), 1911–83, American dramatist, b. Columbus, Miss., grad. State Univ. of Iowa, 1938. One of America's foremost 20th-century playwrights and…Railroad Accidents
While trains are convenient for travel and for transporting goods, they have become a greater danger over the years as their speed has…Algebra: Speed and Distance Problems
Speed and Distance Problems Algebra Whipping Word Problems Interest Problems Area and Volume Problems Speed and Distance Problems Mixture and Combination Problems Have you ever heard of a…Major Railroad Accidents
1876 Dec. 29, Ashtabula, Ohio: Lake Shore train fell into the Ashtabula River when the bridge it was crossing collapsedduring a…July 2013 Current Events: Disasters & Science News
World News | Business News | U.S. News Here are the key events in Science and Disasters news for the month of July 2013…Trending
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