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radio frequency
(Encyclopedia) radio frequency, range of electromagnetic waves with a frequency or wavelength suitable for communication uses. Some of these waves serve as carriers of the lower-frequency audio waves…Rice, Condoleezza
(Encyclopedia) Rice, Condoleezza, 1954–, U.S. government official and educator, b. Birmingham, Ala. A political scientist who has specialized in Russian and E European studies, Rice has been a…Kepler's laws
(Encyclopedia) CE5 Schematic representation of Kepler's second law: The areas ABF and A′B′F′ are equal and are swept out in equal intervals of time by a planet orbiting around the sun (at F).…Crespo, Joaquín
(Encyclopedia) Crespo, JoaquínCrespo, Joaquínhwäkēnˈ krāsˈpō [key], 1841?–1898, president of Venezuela (1884–86, 1894–98). He served his first term under the dominance of Antonio Guzmán Blanco. In…Giauque, William Francis
(Encyclopedia) Giauque, William FrancisGiauque, William Francisjēōkˈ [key], 1895–1982, American chemist, b. Niagara Falls, Ont., Canada, grad. Univ. of California (B.S., 1920; Ph.D., 1922). A member…Hiva Oa
(Encyclopedia) Hiva OaHiva Oahēˈvä ōˈä [key], volcanic island, 154 sq mi (399 sq km), South Pacific, second largest and the most important of the Marquesas Islands, French Polynesia. Hiva Oa is the…absentee ownership
(Encyclopedia) absentee ownership, system under which a person (or a corporation) controls and derives income from land in a region where he does not reside. Abuses existed in absenteeism in pre-…Matanzas, city, Cuba
(Encyclopedia) Matanzas, city (1994 est. pop. 115,000), capital of Matanzas prov., W central Cuba. A port with a large, deep harbor, it exports sugar, fruits, and sisal. Industries in the city…Louisiana State University and Agricultural and Mechanical College
(Encyclopedia) Louisiana State University and Agricultural and Mechanical College, mainly at Baton Rouge; land-grant and state supported; coeducational; chartered 1853, opened as a state seminary…Dentatus
(Encyclopedia) Dentatus (Manius Curius Dentatus)Dentatusdĕntāˈtəs; māˈnēəs ky&oobreve;rˈēəs [key], d. 270 b.c., Roman general. As consul (290) he defeated the Samnites, Sabines, and Lucani; in…Trending
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