Dalton

Dalton
John, English chemist, mathematician, and natural philosopher, 1766–1844. See D. law, D.-Henry law, daltonian, daltonism.

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dal·ton 'dȯlt-ən n a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to 1/12 of the atomic mass of the most abundant carbon isotope 12C: ATOMIC MASS UNIT used chiefly in biochemistry abbr. d
Dalton John (1766-1844)
British chemist and physicist. One of the fathers of modern physical science, Dalton formulated the atomic theory of matter, a theory that established chemistry as a true science. He determined the relative weights of atoms and developed the laws of definite and multiple proportions. He formulated several laws relating to gases, including Dalton's law or the law of partial pressures. His wide interests included meteorology, in which he made valuable observations on the aurora borealis, trade winds, and rain. In 1794 he systematically described and explained the form of color blindness known as Daltonism. He himself was color-blind.

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dal·ton (D) (Da) (dawlґtən) [John Dalton] an arbitrary unit of mass, being the mass of the nuclide of carbon-12, equivalent to 1.657 Ч 10−24 g. Called also atomic mass unit.

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  • Dalton — steht für: Dalton (Familienname), der Familienname Dalton Die Daltons (Comicfiguren), Comicfiguren Dalton, Maßeinheit der Masse, Synonym für die atomare Masseneinheit Dalton Highway, Hauptverkehrsstraße in Alaska Daltonsches Gesetz Dalton ist… …   Deutsch Wikipedia

  • Dalton — Dalton, NE U.S. village in Nebraska Population (2000): 332 Housing Units (2000): 170 Land area (2000): 0.343611 sq. miles (0.889948 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.343611 sq. miles (0.889948 sq …   StarDict's U.S. Gazetteer Places

  • DALTON (J.) — La théorie atomique a présidé dans une large mesure au développement de la chimie tout au long du XIXe siècle. Elle fut appliquée pour la première fois de façon précise aux phénomènes chimiques par l’Anglais John Dalton. Ses prédécesseurs avaient …   Encyclopédie Universelle

  • Dalton — Saltar a navegación, búsqueda John Dalton (1766 1844), químico y físico británico. sir Joseph Dalton Hooker (1817 1911) botánico y explorador británico. Los Hermanos Dalton fueron unos ladrones del Oeste de EE. UU. Grattan (1861 1892), Bob… …   Wikipedia Español

  • DALTON — DAL Unité de masse souvent utilisée par les biochimistes, le dalton, qui est la masse d’un atome d’hydrogène, vaut 1,67 憐 10 24 g. Il est symbolisé par Da; le kilodalton s’écrit kDa. dalton [ daltɔn ] n. m. • 1973; 1938 en angl.; de Dalton, n. pr …   Encyclopédie Universelle

  • DALTON — (Heb. דַּלְתּוֹן), moshav in central Upper Galilee, 4 mi. (7 km.) N. of Safed. During most of the Middle Ages, Dalton had a considerable Jewish population and it was believed that the tomb of R. yose ha gelili was located there. In the Crusader… …   Encyclopedia of Judaism

  • Dalton — n. John Dalton, scientist, born 1766, died 1844. Syn: John Dalton. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • dalton — n. [from the chemist John Dalton, proponent of the modern atomic theory of matter.] a unit of mass, approximately 1.66 x 10^{ 24} grams; it is approximately equal to the mass of one hydrogen atom, but the exact value differs slightly as used in… …   The Collaborative International Dictionary of English

  • Dalton —    DALTON, a parish, in the county of Dumfries; containing 638 inhabitants, of whom 54 are in the village, 6 miles (W. by S.) from Ecclesfechan. The name is derived from the Anglo Saxon term Dal ton, or Dal dun, signifying the fort in the dale,… …   A Topographical dictionary of Scotland

  • Dalton, GA — U.S. city in Georgia Population (2000): 27912 Housing Units (2000): 10229 Land area (2000): 19.824620 sq. miles (51.345527 sq. km) Water area (2000): 0.015111 sq. miles (0.039138 sq. km) Total area (2000): 19.839731 sq. miles (51.384665 sq. km)… …   StarDict's U.S. Gazetteer Places

  • Dalton, MN — U.S. city in Minnesota Population (2000): 258 Housing Units (2000): 119 Land area (2000): 0.239488 sq. miles (0.620272 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.239488 sq. miles (0.620272 sq. km) FIPS… …   StarDict's U.S. Gazetteer Places

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