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Thomas Hearns

Born: Oct. 18, 1958Boxer has held world titles as welterweight, junior middleweight, middleweight and light heavyweight; four career losses have come against Ray Leonard, Marvin Hagler and twice to…

Candidate Names in the 1998 Elections

Skip vs. Fancy Ray Noms de Guerre in the '98 Election by Borgna Brunner This article was posted on November 2, 1998.Teddy, Harry, Ike, Jimmy, and Bill knew the value of a folksy nickname in…

DK Science: Astronomy

GIANT TELESCOPESBIOGRAPHY: GALILEO Italian, 1564-1642FIND OUT MOREThe scientific study of the stars and other objects in space is called astronomy. Astronomers observe the Universe using…

James Hillier

Born: 1915Birthplace: Ontario, Canada Electron lens correction device—Hillier is noted for his contributions to the development of the electron microscope. The electron lens is used to focus a beam…

Elia Kazan

Elia Kazan—Genius or Informant? Half a century after McCarthyism, the Academy Award-winning director is again under fire for naming names by Rachael Stark Fifty years after the blacklisting of…

William D. Coolidge

Born: 1873Birthplace: Hudson, Mass. Vacuum tube—Coolidge invented ductile tungsten, the filament material still used in incandescent lamps. He also invented the “Coolidge tube”, the model upon…

mammography

(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-…

Tompkins, Daniel D.

(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…