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differential geometry

(Encyclopedia)differential geometry, branch of geometry in which the concepts of the calculus are applied to curves, surfaces, and other geometric entities. The approach in classical differential geometry involves ...

conservation laws

(Encyclopedia)conservation laws, in physics, basic laws that together determine which processes can or cannot occur in nature; each law maintains that the total value of the quantity governed by that law, e.g., mas...

McMaster University

(Encyclopedia)McMaster University, at Hamilton, Ont., Canada; nondenominational; founded 1887. It has faculties of humanities, science, social sciences, business, engineering, and health sciences, as well as a scho...

Heinlein, Robert Anson MacDonald

(Encyclopedia)Heinlein, Robert Anson MacDonald hīˈlīn [key], 1907–88, American science-fiction writer, b. Butler, Mo. His best-known novel, Stranger in a Strange Land (1961), concerns a young man who is raised...

Nicolson, Marjorie Hope

(Encyclopedia)Nicolson, Marjorie Hope, 1894–1981, American educator, b. Yonkers, N.Y., grad. Univ. of Michigan (B.A., 1914; M.A., 1918) and Yale (Ph.D., 1920). She was dean and professor at Smith from 1929 to 194...

Bolzano, Bernard

(Encyclopedia)Bolzano, Bernard bōltsäˈnō [key], 1781–1848, Czech philosopher, mathematician, and theologian. Though as a Catholic priest he himself was primarily concerned with religious and ethical questions...

Suzuki, Akira

(Encyclopedia)Suzuki, Akira, 1930–, Japanese chemist, Ph.D. Hokkaido Univ., Sapporo, 1959. He was a professor at Hokkaido from 1963 until his retirement in 1994. Since then, he has taught for short periods at Oka...

Silliman, Benjamin

(Encyclopedia)Silliman, Benjamin, 1779–1864, American chemist, geologist, and physicist, b. Trumbull, Conn., grad. Yale, 1796. In 1802 he was appointed first professor of chemistry and natural history at Yale; he...

Cleveland, cities, United States

(Encyclopedia)Cleveland. 1 City (2020 pop. 372,674), seat of Cuyahoga co., NE Ohio, on Lake Erie at the mouth of the Cuyahoga River; laid out (1796) by Moses ...

Sheffield, University of

(Encyclopedia)Sheffield, University of, at Sheffield, England; founded 1897 as University College, received royal charter 1905. It has faculties of arts, architectural studies, engineering, pure science, medicine, ...