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Bhaskara

(Encyclopedia)Bhaskara əchärˈyə [key] [Skt.,=learned], b. 1114, Indian mathematician and astronomer. According to the custom, he put his learned treatises into verse, adding, however, explanations in prose. His...

fountain

(Encyclopedia)fountain, natural or artificially conveyed flow of water. In ancient Greece columnar shrines were built over springs and dedicated to deities or nymphs. In ancient Rome fountains fed by the great aque...

Heister, Lorenz

(Encyclopedia)Heister, Lorenz lōˈrĕnts hīˈshtər [key], 1683–1758, German surgeon. Having studied anatomy under the famous Dutch master Frederik Ruysch (1638–1731), Heister served as an army surgeon in sev...

Francke, August Hermann

(Encyclopedia)Francke, August Hermann ouˈgo͝ost hĕrˈmän frängˈkə [key], 1663–1727, German Protestant minister and philanthropist. In 1686, encouraged by Philipp Jakob Spener, he helped found the Collegium...

boulder, in geology

(Encyclopedia)boulder, large rock fragment formed by detachment from its parent consolidated rock by weathering and erosion. In engineering and geology, especially in the United States, the term is applied to loose...

genocide

(Encyclopedia)genocide, in international law, the intentional and systematic destruction, wholly or in part, by a government of a national, racial, religious, or ethnic group. Although the term genocide was first c...

ring, mathematical system

(Encyclopedia)ring, in mathematics, system consisting of a set R of elements and two binary operations, such that addition makes R a commutative group and multiplication is associative and distributes over addition...

Mathews, Shailer

(Encyclopedia)Mathews, Shailer, 1863–1941, American theologian, educator, and author, b. Portland, Maine, studied at Colby College, at Newton Theological Institution, and at the Univ. of Berlin. After seven years...

Ramazzini, Bernardino

(Encyclopedia)Ramazzini, Bernardino bārnärdēˈnō rämät-tsēˈnē [key], 1633–1717, Italian physician. He was professor at Modena (1682–1700) and at Padua until 1714. He is often called the father of indus...

Geological Survey, United States

(Encyclopedia)Geological Survey, United States, bureau organized in 1879 under the Dept. of the Interior to unify and centralize the work already undertaken by separate surveys under Clarence King, F. V. Hayden, Ge...