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money

(Encyclopedia)money, term that refers to two concepts: the abstract unit of account in terms of which the value of goods, services, and obligations can be compared; and anything that is widely established as a mean...

oxidation and reduction

(Encyclopedia)oxidation and reduction, complementary chemical reactions characterized by the loss or gain, respectively, of one or more electrons by an atom or molecule. Originally the term oxidation was used to re...

spectrum

(Encyclopedia)CE5 Dispersion of white light by a triangular prism spectrum, arrangement or display of light or other form of radiation separated according to wavelength, frequency, energy, or some other propert...

Taliesin

(Encyclopedia)Taliesin or Taliessin both: tălēĕsˈĭn [key], 6th cent.?, Welsh bard, whose Book of Taliesin is one of the great Welsh poetic works. The book exists only in a 13th-century form, but tradition plac...

Solow, Robert M.

(Encyclopedia)Solow, Robert M., 1924–, American economist, b. Brooklyn, N.Y., grad. Harvard (B.A. 1947, M.A. 1949, Ph.D. 1951). He began teaching economics at the Massachusetts Institute of Technology in 1949. So...

Still, Andrew Taylor

(Encyclopedia)Still, Andrew Taylor, 1828–1917, founder of osteopathy, b. Jonesboro, Va. He evolved the theory that all diseases and physical disorders ultimately derived from dislocations (which he called subluxa...

Saha, Meghnad

(Encyclopedia)Saha, Meghnad māgnädˈ säˈhä [key], 1893–1956, Indian physicist. He was a professor at Allahabad Univ. from 1923 to 1938 and a professor and physics department head at Calcutta Univ. from 1938....

Bédier, Joseph

(Encyclopedia)Bédier, Joseph zhôzĕfˈ bādyāˈ [key], 1864–1938, French authority on medieval literature. He was professor at the Collège de France and a member of the French Academy. His reconstruction, in ...

Bates, Henry Walter

(Encyclopedia)Bates, Henry Walter, 1825–92, English naturalist and explorer. In 1848 he went with A. R. Wallace to Brazil, where he explored the upper Amazon, returning in 1859 with some 8,000 new zoological spec...

Clark, John Bates

(Encyclopedia)Clark, John Bates, 1847–1938, American economist, b. Providence, R.I. He studied economics in the U.S. and Germany, and taught at Columbia Univ. and several other colleges in the United States. In 1...