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cathode-ray tube

(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 projected towar...

X-ray astronomy

(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 the sun emits X ...

X-ray crystallography

(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 scattered in a defini...

Wilbur, Ray Lyman

(Encyclopedia)Wilbur, Ray Lyman, 1875–1949, American public official and educator, b. Boonesboro, Iowa, grad. Stanford (B.A., 1896; M.A., 1897) and Cooper Medical College, San Francisco, 1899. After studying medi...

Man, Isle of

(Encyclopedia)Man, Isle of, island and dependency of the British crown (2015 est. pop. 83,000), 227 sq mi (588 sq km), off Great Britain, in the Irish Sea. The coast is rocky with precipitous cliffs; the Calf of Ma...

Man Booker Prize

(Encyclopedia)Man Booker Prize, see Booker Prize. ...

Man Booker Prize

(Encyclopedia)Man Booker Prize and Man Booker International Prize: see Booker Prize. ...

man-made elements

(Encyclopedia)man-made elements: see synthetic elements. ...

Man o' War

(Encyclopedia)Man o' War, 1917–47, American racehorse, by Fair Play out of Mahubah, bred by August Belmont near Lexington, Ky., and owned by Samuel D. Riddle after 1918. A large reddish-colored colt capable of tr...

man-o'-war bird

(Encyclopedia)man-o'-war bird or frigate-bird, most aerial of the water birds, found in the tropic seas. The man-o'-war bird's wingspread (71⁄2 ft/228.5 cm) is the largest in proportion to its body (3–4 lb/1.4�...