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topology

(Encyclopedia) CE5 Möbius strip: On the ordinary flat loop (A), an ant walking along the middle of the strip will pass only around the outside of the strip. If the strip is cut along the dotted…

noddy

(Encyclopedia) noddy, tropical tern including five species in the genus Anous. The name noddy is said to derive from their easy familiarity with man. Noddies are web-footed seabirds with long wings (…

Maxwell, William Keepers, Jr.

(Encyclopedia) Maxwell, William Keepers, Jr., 1908–2000, American novelist, short-story writer, and editor, b. Lincoln, Ill. Educated at the Univ. of Illinois and Harvard, he began his career as a…

testis

(Encyclopedia) testistestistĕsˈtĭs [key] or testicletestistĕsˈtĭkəl [key], one of a pair of glands that produce the male reproductive cells, or sperm. In fetal life the testes develop in the abdomen…

thermionic emission

(Encyclopedia) thermionic emissionthermionic emissionthûrmˌīŏnˈĭk [key], emission of electrons or ions by substances that are highly heated, the charged particles being called thermions. The number…

Trafalgar, battle of

(Encyclopedia) Trafalgar, battle ofTrafalgar, battle oftrəfălˈgər [key], naval engagement fought off Cape Trafalgar on the SW coast of Spain on Oct. 21, 1805, in which the British fleet under Horatio…

Rich, Adrienne

(Encyclopedia) Rich, Adrienne, 1929–2012, American poet, b. Baltimore, grad. Radcliffe, 1951. From the 1970s her exquisitely wrought verse became looser and more personal as her works increasingly…

Scott-Heron, Gil

(Encyclopedia) Scott-Heron, Gil, 1949–2011, American poet, musician, and songwriter, b. Chicago. Often considered “the godfather of rap music,” he…

condor

(Encyclopedia) condor, common name for certain American vultures, found in the high peaks of the Andes of South America and the Coast Range of S California. Condors are the largest of the living…

coercion

(Encyclopedia) coercion, in law, the unlawful act of compelling a person to do, or to abstain from doing, something by depriving him of the exercise of his free will, particularly by use or threat of…