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Baker, Russell

(Encyclopedia)Baker, Russell, 1925–2018, American journalist, author, humorist, and television personality, b. Loudon Co., Va., grad. John Hopkins (1947). He began as a night police reporter for The Baltimore Sun...

Ptolemaic system

(Encyclopedia)Ptolemaic system tŏlˌəmāˈĭk [key], historically the most influential of the geocentric cosmological theories, i.e., theories that placed the earth motionless at the center of the universe with a...

Montville

(Encyclopedia)Montville, town (1990 pop. 16,673), New London co., SE Conn.; founded 1670, inc. 1786. Paper products, sheet metal, computer circuit boards, tachometers, aluminum doors and windows, and boxes are made...

O'Malley, Frank Ward

(Encyclopedia)O'Malley, Frank Ward, 1875–1932, American newspaperman, b. Pittston, Pa. As reporter (1906–19) for the New York Sun he was especially noted for his stories of humor and pathos. Among his books is ...

cycle

(Encyclopedia)cycle, in astronomy, period of time required for the recurrence of some celestial event. The length of a cycle may be measured relative to the sun or to the fixed stars (see sidereal time). A frequent...

Campbell, John Francis

(Encyclopedia)Campbell, John Francis, 1822–85, Scottish Gaelic scholar. He is known for Popular Tales of the West Highlands (4 vol., 1860–62) and Leabhar na Feinne (1872), a collection of Gaelic folk ballads. A...

radial velocity

(Encyclopedia)radial velocity, in astronomy, the speed with which a star moves toward or away from the sun. It is determined from the red or blue shift in the star's spectrum. ...

Hipparchus, Greek astronomer

(Encyclopedia)Hipparchus, fl. 2d cent. b.c., Greek astronomer, b. Nicaea, Bithynia. He is the first systematic astronomer of whom there are records. He made his observations chiefly on the island of Rhodes. Ptolemy...

Great Falls

(Encyclopedia)Great Falls, city (2020 pop. 60,442), seat of Cascade co., N central Mont., second largest city in the state, at the confluence of the Missouri and Sun ...

Webb Space Telescope

(Encyclopedia)Webb Space Telescope or James Webb Space Telescope (JWST), is an infrared space telescope, the largest in space at its launc...