(Encyclopedia) mammography, diagnostic procedure that uses low-dose X rays to detect abnormalities in the breasts. Tomosynthesis, also known as 3D mammography, is form of mammography that combines X-…
(Encyclopedia) Tompkins, Daniel D., 1774–1825, American political figure, Vice President of the United States (1817–25), b. Scarsdale, N.Y. A leader of the Jeffersonian group in New York state, he…
(Encyclopedia) radiology, branch of medicine specializing in the use of X rays, gamma rays, radioactive isotopes, and other forms of radiation in the diagnosis and treatment of disease. X ray…
(Encyclopedia) oarfish, large, elongated fish, genus Regalecus, found in the oceans worldwide except for the polar regions. Oarfish species are solitary and rarely seen by humans. The giant oarfish,…
(Encyclopedia) Braun, Karl FerdinandBraun, Karl Ferdinandfĕrˈdēnäntˌ [key]Braun, Karl Ferdinand broun [key], 1850–1918, German physicist. Braun taught at the Univ. of Marburg, Strasbourg Univ.,…
FILTER FEEDERAFRICAN LUNGFISHJAWLESS LAMPREYFISHFIND OUT MOREFish are water animals that evolved about 500 million years ago. They were the first animals to have an internal skeleton. Most fish…
Born: June 16, 1951Panamanian boxer one of only 4 fighters to hold 4 different world titles— lightweight (1972-79), welterweight (1980), junior middleweight (1983) and middleweight (1989-90); lost…
Born: 1906Birthplace: Beaver, Utah Television system—At the age of 20 Farnsworth produced the first all-electronic television image. In addition to his television system he invented the first cold…
(Encyclopedia) Hess, Victor Francis, 1883–1964, American physicist, b. Austria, Ph.D. Univ. of Graz, 1906. After teaching at the universities of Graz and Innsbruck, he came to the United States in…
(Encyclopedia) Hounsfield, Sir Godfrey Newbold, 1919–2004, British electrical engineer. A radar expert for the Royal Air Force during World War II, in the 1950s Hounsfield began developing computer…
