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NOBILI, LEOPOLDO

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Originally appearing in Volume V19, Page 724 of the 1911 Encyclopedia Britannica.
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NOBILI, LEOPOLDO (1784-18357, See also:Italian physicist, See also:born at Reggio nell' See also:Emilia in 1784, was in youth an officer of See also:artillery, but afterwards became See also:professor of physics in the archducal museum at See also:Florence, the old See also:habitat of the Accademia del Cimento. His most valuable contributions to See also:science consist in the See also:suggestion of the astatic See also:combination of two needles for galvanometers, and in the invention of the so-called thermomultiplier used by him and M. See also:Melloni. In 1826 he described the prismatically-coloured films of See also:metal, known as Nobili's rings, deposited electrolytically from solutions of See also:lead and other salts when the anode is a polished See also:iron See also:plate and the See also:cathode is a See also:fine See also:wire placed vertically above it. His papers were mostly published in the Bibliotheque universelle of See also:Geneva. He died at Florence in See also:August 1835.

End of Article: NOBILI, LEOPOLDO

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