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mathematics

(Encyclopedia)mathematics, deductive study of numbers, geometry, and various abstract constructs, or structures; the latter often “abstract” the features common to several models derived from the empirical, or ...

photography, still

(Encyclopedia)photography, still, science and art of making permanent images on light-sensitive materials. See also photographic processing; motion picture photography; motion pictures. By the end of ...

Roman Catholic Church

(Encyclopedia)Roman Catholic Church, Christian church headed by the pope, the bishop of Rome (see papacy and Peter, Saint). Its commonest title in official use is Holy Catholic and Apostolic Church. “Roman Cathol...

Greece

(Encyclopedia)CE5 Greece, Gr. Hellas or Ellas, officially Hellenic Republic, republic (2015 est. pop. 11,218,000), 50,944 sq mi (131,945 sq km), SE Europe. It occupies the southernmost part of the Balkan Peninsu...

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