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turbulence
(Encyclopedia)turbulence, state of violent or agitated behavior in a fluid. Turbulent behavior is characteristic of systems of large numbers of particles, and its unpredictability and randomness has long thwarted a...streamline
(Encyclopedia)streamline, path of a fluid flowing steadily and without appreciable turbulence. A body is said to be streamlined if its shape offers the least possible resistance to a current of air, water, or other...curfew
(Encyclopedia)curfew [O.Fr.,=cover fire], originally a signal, such as the ringing of a bell, to damp the fire, extinguish all lights in the dwelling, and retire for the night. The custom originated as a precaution...hydraulics
(Encyclopedia)hydraulics, branch of engineering concerned mainly with moving liquids. The term is applied commonly to the study of the mechanical properties of water, other liquids, and even gases when the effects ...O'Flaherty, Liam
(Encyclopedia)O'Flaherty, Liam lēˈəm ōflăˈhərtē [key], 1897–1984, Irish novelist, b. Aran Islands, Co. Galway. Many of his realistic novels have a compassionate interest in troubled people caught in the t...Plaza Lasso, Galo
(Encyclopedia)Plaza Lasso, Galo gäˈlō pläˈ sä läˈsō [key], 1906–87, president of Ecuador (1948–52) and secretary-general of the Organization of American States (OAS; 1968–75), b. New York City. He se...Boccioni, Umberto
(Encyclopedia)Boccioni, Umberto o͞ombĕrˈtō bŏt-chôˈnē [key], 1882–1916, Italian futurist painter and sculptor. He played a primary role in the drafting of the manifesto of futurism in 1910 and was the maj...Abd ar-Rahman I, emir of Córdoba
(Encyclopedia)Abd ar-Rahman I, d. 788, first Umayyad emir of Córdoba (756–88). The only survivor of the Abbasid massacre (750) of his family in Damascus, he fled from Syria and eventually went to Spain. There he...Witteveen, H. Johannes
(Encyclopedia)Witteveen, H. Johannes (Hendrikus Johannes Witteveen), 1921–2019, Dutch economist and political leader. After receiving his doctorate from the Netherlands School of Economics (now Erasmus Univ. Rott...López Velarde, Ramón
(Encyclopedia)López Velarde, Ramón rämōnˈ lōˈpās vālärˈᵺā [key], 1888–1921, Mexican poet. One of the major poets of Mexico, he deeply influenced the work of later poets, notably Xavier Villaurrutia....Browse by Subject
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