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Pythagoras
(Encyclopedia)Pythagoras pĭthăgˈərəs [key], c.582–c.507 b.c., pre-Socratic Greek philosopher, founder of the Pythagorean school. He migrated from his native Samos to Crotona and established a secret religiou...Lafayette, Marie Joseph Paul Yves Roch Gilbert du Motier, marquis de
(Encyclopedia)Lafayette, or La Fayette, Marie Joseph Paul Yves Roch Gilbert du Motier, marquis de märēˈ zhôzĕfˈ pôl ēv rôk zhēlbĕrˈ dü môtyāˈ märkēˈ də läfāĕtˈ [key], 1757–1834, French gen...Curzon of Kedleston, George Nathaniel Curzon, 1st Marquess
(Encyclopedia)Curzon of Kedleston, George Nathaniel Curzon, 1st Marquess kûrˈzən, kĕdˈəlstən [key], 1859–1925, British statesman. A member of the minor aristocracy, he attended Eton and Oxford. From his un...exobiology
(Encyclopedia)exobiology or astrobiology, search for extraterrestrial life within the solar system and throughout the universe. Philosophical speculation that there might be other worlds similar to ours dates back ...prion
(Encyclopedia)prion prēˈŏn [key], abnormal form of a protein found in mammals, now generally believed to cause a group of diseases known as prion diseases or transmissible spongiform encephalopathies, which are ...New Guinea
(Encyclopedia)New Guinea gĭnˈē [key], island, c.342,000 sq mi (885,780 sq km), SW Pacific, N of Australia; the world's second largest island after Greenland. Politically it is divided into two sections: the Indo...Spielberg, Steven
(Encyclopedia)Spielberg, Steven, 1946–, American film director, b. Cincinnati, Ohio. Spielberg began his career as a television director, admired for his understanding portrayal of human character. His film Jaws ...virus
(Encyclopedia)CE5 Structure of a tobacco mosaic virus, an RNA-containing virus virus, parasite with a noncellular structure composed mainly of nucleic acid within a protein coat. Most viruses are too small (100...Congo, river, Africa
(Encyclopedia)Congo zīˈēr, zäērˈ [key], great river of equatorial Africa, c.2,720 mi (4,380 km) long, formed by the waters of the Lualaba River and its tributary, the Luvua River, and flowing generally N and ...exploration
(Encyclopedia)exploration, travel to a part of the earth that is relatively unknown to the traveler's culture, historically often motivated by a desire for colonization, conquest, or trade. See also space explorati...Browse by Subject
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