(Encyclopedia) X-ray astronomy, study of celestial objects by means of the X rays they emit, in the wavelength range from 0.01 to 10 nanometers. X-ray astronomy dates to 1949 with the discovery that…
(Encyclopedia) X-ray crystallography, the study of crystal structures through X-ray diffraction techniques. When an X-ray beam bombards a crystalline lattice in a given orientation, the beam is…
(Encyclopedia) ray, extremely flat-bodied cartilaginous marine fish, related to the shark. The pectoral fins of most rays are developed into broad, flat, winglike appendages, attached all along the…
(Encyclopedia) ray, in physics, term denoting the straight line along which light or other form of radiation is propagated from its source. It generally refers to the line of propagation of waves but…
(Encyclopedia)
CE5
Cathode-ray tube
cathode-ray tube (CRT), special-purpose electron tube in which electrons are accelerated by high-voltage anodes, formed into a beam by focusing electrodes, and…
(Encyclopedia) Baker, Ray Stannard, pseud. David Grayson, 1870–1946, American author, b. Lansing, Mich., grad. Michigan State College (now Michigan State Univ.), 1889. At first a Chicago newspaper…
Born: Oct. 6, 1959Bowling and Horseshoes 5-time PBA Bowler of Year (1986,93,96,97,98); all-time leading money winner on the PBA Tour entering 2002-03 season; won 6 World Horseshoe Pitching titles.
Senate Years of Service: 1989-1999, 2011-Party: RepublicanCOATS, Daniel Ray, a Representative and a Senator from Indiana; born in Jackson, Jackson County, Mich., May 16, 1943; attended the…
(Encyclopedia) Heseltine, Michael Ray DibdinHeseltine, Michael Ray Dibdinhĕsˈəltīnˌ, hĕzˈ– [key], 1933–, British politician. After studying law at Oxford, he built a successful career in publishing…
