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Thomas, Lewis
(Encyclopedia) Thomas, Lewis, 1913–93, American physician and biologist, b. Flushing, New York. In his youth he often accompanied his physician father on his rounds and decided early on to be a…sonar
(Encyclopedia) sonarsonarsōˈnär [key], device used underwater for locating submerged objects and for submarine communication by means of sound waves. The term sonar is an acronym for sound navigation…Reik, Theodor
(Encyclopedia) Reik, TheodorReik, Theodortāˈōdōr rīk [key], 1888–1969, American psychologist and author, b. Vienna, Ph.D. Univ. of Vienna, 1912. He was one of Sigmund Freud's earliest and most…insomnia
(Encyclopedia) insomnia, abnormal wakefulness or inability to sleep. The condition may result from illness or physical discomfort, or it may be caused by stimulants such as coffee or drugs. However,…bilingualism
(Encyclopedia) bilingualism, ability to use two languages. Fluency in a second language requires skills in listening comprehension, speaking, reading, and writing, although in practice some of those…Moore, Douglas Stuart
(Encyclopedia) Moore, Douglas Stuart, 1893–1969, American composer and teacher, b. Cutchogue, N.Y. Moore studied with Horatio Parker, Vincent D'Indy, Nadia Boulanger, and Ernest Bloch. In 1926 he…echo, in acoustics
(Encyclopedia) echo, reflection of a sound wave back to its source in sufficient strength and with a sufficient time lag to be separately distinguished. If a sound wave returns within 1&fslsh;10…Springsteen, Bruce Frederick
(Encyclopedia) Springsteen, Bruce Frederick, 1949–, American singer, guitarist, and songwriter, nicknamed “The Boss,” b. Long Branch, N.J. Springsteen established himself as a singer and songwriter,…learning disabilities
(Encyclopedia) learning disabilities, in education, any of various disorders involved in understanding or using spoken or written language, including difficulties in listening, thinking, talking,…Welles, Orson
(Encyclopedia) Welles, Orson, 1915–85, American actor, director, and producer, b. Kenosha, Wis. From childhood he evinced a precocious talent and lofty sense of self-assurance in theatrical matters.…Trending
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