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McLean

(Encyclopedia)McLean, city (1990 pop. 38,168), Fairfax co., N Va., a suburb of Washington, D.C. Manufacturing includes foods, satellite components, and computer and telecommunications equipment. The headquarters of...

Lizard, The

(Encyclopedia)Lizard, The, peninsula, Cornwall, SW England. Its southern extremity (the southernmost point of Great Britain) is called Lizard Point or Lizard Head. The coast has colored serpentine rocks, small cove...

European Space Agency

(Encyclopedia)European Space Agency (ESA), multinational agency dedicated to the promotion, for exclusively peaceful purposes, of cooperation among European states in space research and technology. Member states in...

radio

(Encyclopedia)CE5 A. AM transmitter B. AM receiver radio, transmission or reception of electromagnetic radiation in the radio frequency range. The term is commonly applied also to the equipment used, especially...

Carpentersville

(Encyclopedia)Carpentersville, village (2020 pop. 36,494), Kane co., NE Ill., on the Fox River, settled 1834, platted 1851, inc. 1887. In a traditionally agricultural...

Kuiper, Gerard Peter

(Encyclopedia)Kuiper, Gerard Peter or Gerrit Pieter gĕrˈĭt pēˈtər kīˈpər [key], 1905–73, American astronomer, b. the Netherlands. Kuiper is considered to be the father of modern planetary science for his...

ultraviolet astronomy

(Encyclopedia)ultraviolet astronomy, study of celestial objects by means of the ultraviolet radiation they emit, in the wavelength range from about 90 to about 350 nanometers. Ultraviolet (UV) line spectrum measure...

broadcasting

(Encyclopedia)broadcasting, transmission, usually using radio frequencies, of sound or images to a large number of radio or television receivers. In the United States the first regularly scheduled radio broadcasts ...

Sugar Land

(Encyclopedia)Sugar Land, city (2000 pop. 63,328), Fort Bend co., SE Texas, on the Brazos River and Oyster Creek, a W suburb of Houston; inc. 1959. The city, which now has a diversified economy, began as a pre–Ci...

Ganymede, in astronomy

(Encyclopedia)Ganymede gănˈēmēdˌ [key], in astronomy, one of the moons, or natural satellites, of Jupiter; the largest natural satellite in the solar system, it is larger than the planet Mercury. ...