Oral Tradition The black descendants of Ball slaves interviewed for the book also told very different stories. For example, Edwina Harleston Whitlock, a retiree living in…
physicist and inventorDied: Feb. 15, 2007 (Boise, Idaho) Inventor who held about 200 U.S. patents, the most famous of which was the first wireless television…
inventorBorn: 1946 With his invention of Ethernet, Metcalfe created a way to link computers to one another and to the Internet. Ethernet is the most widely used local…
Congressional delegate Underwood holds bachelor's and master's degrees in history from California State University, and a Ph.D. in education in policy planning from UCLA. In 1972 he became a…
Union general Born: 6/11/1816Birthplace: near Salem, Ind. Born on a farm in southern Indiana, Milroy attended a private military academy in Vermont, graduating in 1843. He served as a company…
Born: 1925Birthplace: Fort Morgan, Colo Dyes for diagnosing infectious diseases—Burckhalter and Seiwald synthesized fluorescein isothiocyanate (FITC), an antibody labeling agent. FITC has become…
Born: 1882Birthplace: Worcester, Mass. Control mechanism for rocket apparatus—Goddard launched the first liquid-fuel rocket in 1926. Other rocket design developments led to the bazooka and rocket-…
Born: 1919Birthplace: New Haven, Conn. High-voltage, high-power semiconductor pin rectifier—Hall's invention boosted efficiency and reduced wasted power and destructive heat build-up in large-scale…
Born: 1926Birthplace: New York City Diagnostic x-ray systems—Ledley developed the ACTA diagnostic x-ray scanner, the first whole-body computerized tomography (CT) machine. He was the first to do…
