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Harold Stephen Black
Harold Stephen Black Born: 1898Birthplace: Leominster, Mass. Negative feedback amplifier—Black's negative feedback concept involved feeding systems output back to the input as a method of…Eunice Mary Kennedy Shriver Biography
Eunice Mary Kennedy Shriverphilanthropist, mental health activistBorn: 1921Birthplace: Brookline, Mass.Died: 2009 Shriver, the daughter of Joseph P. and Rose Kennedy and the sister of…Jane Jacobs 2006 Deaths
Jane JacobsAge: 89 urban planner whose ground-breaking 1961 book, The Death and Life of Great American Cities, criticized urban renewal—the concept of clearing cities of slums and building…Michael Dell Biography
Michael Dellentrepreneur, founder of Dell Computer CorporationBorn: 2/23/1965Birthplace: Houston, Tex. Having begun selling computers out of his dorm room at the University of Texas, Dell…Impeached or not?
The Question: We have a running debate going on about the use of the word "impeached." By definition, impeachment is merely a formal accusation brought…The Pledge of Allegiance
The Question: Who wrote the Pledge of Allegiance to the Flag? The Answer: The original pledge was written by Francis Bellamy (1855-1931…Twenty One
NBCMidseason debutMonday 9:00–10:00 p.m.Host:Maury Povich With the 1950s game-show scandal that rocked the television industry now more than 40 years in the past, Americans have proven ready…Alfred Free
Alfred FreeBorn: 1913 COMPOSITION OF MATTER. Free revolutionized urinalysis by devising a dip-and-read test, CLINISTIX®, for detecting glucose in urine. Working at Miles Laboratories, he also…Ivan Getting
Ivan GettingBorn: 1912 Global Positioning System—GPS. During the 1950s, Getting advanced the concept of using a system of satellites to allow the calculation of precise positioning data for…Bradford Parkinson
Bradford ParkinsonBorn: 1935 Global Positioning System—GPS. During the 1950s, Getting advanced the concept of using a system of satellites to allow the calculation of precise positioning data…Trending
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