Columbia Encyclopedia

(Encyclopedia) Karakul sheep kărˈəkəl [key], breed native to central Asia. The newborn lambs usually have tightly curled black fur and are skinned before they are three days old to provide the commercial lambski...

(Encyclopedia) Worth, William Jenkins, 1794–1849, American army officer, b. Hudson, N.Y. He served with distinction on the Niagara frontier in the War of 1812 and later became commandant of cadets and instructor o...

(Encyclopedia) Beresford, Bruce, 1940–, Australian film director, b. Sydney, grad. Sydney Univ. (1962). Beresford moved to England, worked for the British Film Institute (1966–71), and made several modest films....

(Encyclopedia) Südhof, Thomas Christian, 1955–, German-American biochemist. M.D., b. Göttingen, Germany, Ph.D. Georgia Augusta Univ., Göttingen, 1982. Südhof joined the faculty at the Univ. of Texas Southweste...

(Encyclopedia) Tillerson, Rex Wayne, 1952–, American business executive and government official, b. Wichita Falls, Tex., B.S. Univ. of Texas, Austin, 1975. He joined the Exxon Corp. in 1975 as a production enginee...

(Encyclopedia) Rostow, Walt Whitman, 1916–2003, U.S. economist and government official, brother of Eugene Rostow, b. New York City. A Yale Ph.D. (1940) and Rhodes scholar, he served (1942–45) with the covert Off...

(Encyclopedia) talc, mineral ranging in color from white through various shades of gray and green to the red and brown of impure specimens, translucent to opaque, and having a greasy, soapy feel. It is a hydrous sil...

(Encyclopedia) shad, fish of the genus Alosa, family Clupeidae (herring family), found in North America, Europe, and the Mediterranean. The American shad, A. sapidissima, is one of the largest (6 lb/2.7 kg average) ...

(Encyclopedia) Buck, Linda B., 1947–, American neurobiologist, b. Seattle, Wash., Ph.D. Univ. of Texas Southwestern Medical Center, 1980. Buck taught at Harvard Medi...

(Encyclopedia) Permian period pûrˈmēən [key] [from Perm, Russia], sixth and last period of the Paleozoic era (see Geologic Timescale, tablegeologic timescale, table) from 250 to 290 million years ago. Many ma...