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geodesy

(Encyclopedia)geodesy jēŏdˈĭsē [key] or geodetic surveying, theory and practice of determining the position of points on the earth's surface and the dimensions of areas so large that the curvature of the earth...

Besançon

(Encyclopedia)Besançon bəzäNsôNˈ [key], city, capital of Doubs dept., E France, in Franche-Comté, on ...

Ceres, in astronomy

(Encyclopedia)Ceres sîrˈēz [key], in astronomy, a dwarf planet, the first asteroid to be discovered. It was found on Jan. 1, 1801, by G. Piazzi. He took three distinct observations; on the basis of these the mat...

Levittown

(Encyclopedia)Levittown lĕvˈət-tounˌ [key]. 1 Uninc. residential city (1990 pop. 53,286), Nassau co., SE N.Y., on Long Island; founded 1947. Originally about 7 sq mi (18 sq km) of potato fields, it was develope...

Montagnier, Luc Antoine

(Encyclopedia)Montagnier, Luc Antoine, 1932–, French virologist, M.D. Sorbonne, 1960. Montagnier was a researcher at the Medical Research Council at Carshalton, London (1960–63), the Institute of Virology in Gl...

Babylonian captivity

(Encyclopedia)Babylonian captivity, in the history of Israel, the period from the fall of Jerusalem (586 b.c.) to the reconstruction in Palestine of a new Jewish state (after 538 b.c.). After the capture of the cit...

RISC processor

(Encyclopedia)RISC processor [Reduced Instruction Set Computer], computer arithmetic-logic unit that uses a minimal instruction set, emphasizing the instructions used most often and optimizing them for the fastest ...

second

(Encyclopedia)second, abbr. sec or s, fundamental unit of time in all systems of measurement. In practical terms, the second is 1/60 of a minute, 1/3,600 of an hour, or 1/86,400 of a day. Since the length of the da...

Charpentier, Emmanuelle Marie

(Encyclopedia)Charpentier, Emmanuelle Marie āmänüĕl märēˈ shärpäNtyāˈ [key], 1968–, French microbiologist, Ph.D. Pierre and Marie Curie Univ., 1995. Following postdoctoral appointments at several insti...

analysis

(Encyclopedia)analysis, branch of mathematics that utilizes the concepts and methods of the calculus. It includes not only basic calculus, but also advanced calculus, in which such underlying concepts as that of a ...