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curium

(Encyclopedia)curium kyo͝orˈēəm [key], artificially produced radioactive chemical element; symbol Cm; at. no. 96; mass no. of most stable isotope 247; m.p. about 1,340℃; b.p. 3,110℃; sp. gr. 13.5 (calculate...

cobalt, chemical element

(Encyclopedia)cobalt, metallic chemical element; symbol Co; at. no. 27; at. wt. 58.9332; m.p. 1,495℃; b.p. about 2,870℃; sp. gr. 8.9 at 20℃; valence +2 or +3. Cobalt is a silver-white, lustrous, hard, brittle...

quantum chromodynamics

(Encyclopedia)quantum chromodynamics (QCD), quantum field theory that describes the properties of the strong interactions between quarks and between protons and neutrons in the framework of quantum theory. Quarks p...

Crosby, Bing

(Encyclopedia)Crosby, Bing krôzˈbē [key], 1903–77, American singer and film actor, b. Tacoma, Wash., as Harry Lillis Crosby. He sang with dance bands from 1925 to 1930 and in 1931 began work in radio and films...

Connell, Evan Shelby, Jr.

(Encyclopedia)Connell, Evan Shelby, Jr., 1924–2013, American writer, b. Kansas City, Mo., grad. Univ. of Kansas (B.A., 1947). His first published work, the well-regarded The Anatomy Lesson and Other Stories (1957...

Henderson, Rickey Henley

(Encyclopedia)Henderson, Rickey Henley, 1958–, American baseball player, b. Chicago. An outfielder with the Oakland Athletics (1979–84, 1989–93, 1994–95, 1998), New York Yankees (1985–89), Toronto Blue Ja...

Hercules cluster

(Encyclopedia)Hercules cluster, giant globular star cluster in the northern constellation Hercules; cataloged as M13 or NGC 6205. The cluster is just visible to the naked eye and is the best example of a globular c...

Grace, princess consort of Monaco

(Encyclopedia)Grace, 1929–82, princess consort of Monaco, b. Philadelphia as Grace Patricia Kelly. She acted on stage and television in New York, and made her film debut in 1951. Cool, blonde, and patrician, she ...

Murder, Inc.

(Encyclopedia)Murder, Inc., name given to the band of professional killers who operated (1930–40) throughout the United States as the enforcement arm of the Syndicate, composed of the national heads of organized ...

astrolabe

(Encyclopedia)astrolabe ăsˈtrəlāb [key], instrument probably used originally for measuring the altitudes of heavenly bodies and for determining their positions and movements. Although its origin is ancient and ...