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Ohm, Georg Simon

(Encyclopedia)Ohm, Georg Simon gāˈôrkh zēˈmôn ōm [key], 1787–1854, German physicist. He was professor at Munich from 1852. His study of electric current led to his formulation of the law now known as Ohm's...

ohm

(Encyclopedia)ohm ōm [key] [for G. S. Ohm], symbol Ω, unit of electrical resistance, defined as the resistance in a circuit in which a potential difference of one volt creates a current of one ampere; hence, 1 oh...

Ohm's law

(Encyclopedia)Ohm's law ōm [key] [for G. S. Ohm], law stating that the electric current i flowing through a given resistance r is equal to the applied voltage v divided by the resistance, or i=v/r. For general app...

resistance, in electricity

(Encyclopedia)resistance, property of an electric conductor by which it opposes a flow of electricity and dissipates electrical energy away from the circuit, usually as heat. Optimum resistance is provided by a con...

Rowland, Henry Augustus

(Encyclopedia)Rowland, Henry Augustus rōˈlənd [key], 1848–1901, American physicist, b. Honesdale, Pa., grad. Rensselaer Polytechnic Institute, 1870. He was professor of physics at Johns Hopkins from 1875. Rowl...

Forster, Johann Reinhold

(Encyclopedia)Forster, Johann Reinhold, 1729–98, German naturalist and teacher. His Philosophical Transactions of the Royal Society (1772–73) on zoology, ornithology, and ichthyology established him as one of t...

Herwegh, Georg

(Encyclopedia)Herwegh, Georg gāˈôrkh hĕrˈvāk [key], 1817–75, German revolutionary poet. His best-known work, Gedichte eines Lebendigen [poems of a living man] (1841) stirred much liberal enthusiasm. Herwegh...

Graevius, Johann Georg

(Encyclopedia)Graevius, Johann Georg yōˈhän gāˈôrk grāˈvēo͝os [key], 1632–1703, German antiquary. His German name was Gräve or Greffe. He was historiographer to William III of England and is remembered...

Simon's Town

(Encyclopedia)Simon's Town or Simonstown sīˈmənztoun [key], town, now part of City of Cape Town metropolitan municipality, Western Cape prov., SW South Africa, on False Bay, an arm of the Atlantic Ocean. It is a...

Simon, Claude Eugène Henri

(Encyclopedia)Simon, Claude Eugène Henri, 1913–2005, French novelist. He was born in Antananarivo, Madagascar, and studied at Paris, Oxford, and Cambridge. He fought in World War II both as a soldier and later i...
 

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