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Southern Ocean

(Encyclopedia)Southern Ocean or Antarctic Ocean, name sometimes given to those parts of the Pacific, Atlantic, and Indian oceans that surround Antarctica S of roughly 60°S. These waters are marked by the Antarctic...

Watson, Thomas John

(Encyclopedia)Watson, Thomas John, 1874–1956, American industrialist and philanthropist, b. Campbell, N.Y. After rising from clerk to sales executive in the National Cash Register Co. (1898–1913), he became (19...

fishing

(Encyclopedia)fishing, act of catching fish for consumption or display. Fishing—usually by hand, club, spear, net, and (at least as early as 23,000 years ago) by hook—was known to prehistoric people. It was pra...

Venezuela Boundary Dispute

(Encyclopedia)Venezuela Boundary Dispute, diplomatic controversy, notable for the tension caused between Great Britain and the United States during much of the 19th cent. Of long standing, the dispute concerned the...

iridium

(Encyclopedia)iridium ĭrĭdˈēəm [key], metallic chemical element; symbol Ir; at. no. 77; at. wt. 192.217; m.p. about 2,410℃; b.p. about 4,130℃; sp. gr. 22.55 at 20℃; valence +3 or +4. Iridium is a very ha...

iceberg

(Encyclopedia)iceberg, mass of ice that has become detached, or calved, from the edge of an ice sheet or glacier and is floating on the ocean. Because ice is slightly less dense than water about one ninth of the to...

Dionysius Exiguus

(Encyclopedia)Dionysius Exiguus dīənĭshˈēəs ĕksĭgˈyo͞oəs [key], d. c.545, Roman monk, chronologist, and scholar, a transmitter of Greek thought to the Middle Ages. He made collections of 5th-century papa...

Elche

(Encyclopedia)Elche ĕlˈchā [key], Valencian Elx, city, Alicante prov., SE Spain, in Valencia. It is surr...

Levitt, William Jaird

(Encyclopedia)Levitt, William Jaird lĕvˈət [key], 1907–94, American builder, b. Brooklyn, N.Y. After studying at New York Univ., he (and his brother) joined his father's construction company; it became (1929) ...

Lorenzo Monaco

(Encyclopedia)Lorenzo Monaco mōˈnäkō [key], c.1370–1425?, Italian painter, one of the leading artists in Florence at the beginning of the 15th cent. His real name was Piero di Giovanni. Born in Siena, he came...