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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 line, twisted onc...

Möbius, Augustus Ferdinand

(Encyclopedia)Möbius, Augustus Ferdinand mōˈbēəs, Ger. möˈbēəs [key],(1790–1868), German mathematician and astronomer, b. Schulpforta, Saxony. A professor of astronomy at the Univ. of Leipzig, he made im...

antique collecting

(Encyclopedia)antique collecting, the assembling of items of aesthetic, historical, and often monetary value from earlier eras. The term antique initially referred only to the preclassical and classical cultures of...

erosion

(Encyclopedia)erosion ĭrōˈzhən [key], general term for the processes by which the surface of the earth is constantly being worn away. The principal agents are gravity, running water, near-shore waves, ice (most...

Lupercalia

(Encyclopedia)Lupercalia lo͞opərkālˈyə [key], ancient Roman festival held annually on Feb. 15. The ceremony of the festival was intended to secure fertility and keep out evil. Two male youths, clad in animal s...

panhandle

(Encyclopedia)panhandle, in geography, a strip of land projecting from the main body of an area and shaped like the handle of a pan, such as the panhandles of West Virginia, Texas, and Alaska. ...

Amis, Sir Kingsley

(Encyclopedia)Amis, Sir Kingsley āˈmĭs [key], 1922–95, English novelist. He attended St. John's College, Oxford (B.A., 1949) and for some 20 years taught at Oxford, Swansea, and Cambridge and in the United Sta...

spruce

(Encyclopedia)spruce, any plant of the genus Picea, evergreen trees or shrubs of the family Pinaceae (pine family) widely distributed in the Northern Hemisphere. The needles are angular in cross section, rather tha...

Twain, Mark

(Encyclopedia)Twain, Mark, pseud. of Samuel Langhorne Clemens, 1835–1910, American author, b. Florida, Mo. As humorist, narrator, and social observer, Twain is unsurpassed in American literature. His novel The Ad...

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