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WIEDEMANN, GUSTAV HEINRICH (1826-1899)
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See also:WIEDEMANN, GUSTAV HEINRICH (1826-1899) , See also:German physicist, was See also:born at See also:Berlin on the 2nd of See also:October 1826. After attending the See also:Cologne gymnasium, he entered the university of Berlin in 1844, and took his See also:doctor's degree there three years later. His thesis on that occasion was devoted to a question in organic See also:chemistry, for he held the See also:opinion that the study of chemistry is an indispensable preliminary to the pursuit of physics, which was his ultimate aim. In Berlin he made the acquaintance of H. von See also:Helmholtz at the See also:house of H. G. See also:Magnus, and was one of the founders of the Berlin See also:Physical Society. In 1854 he See also:left Berlin to become See also:professor of physics in See also:Basel University, removing nine years afterwards to See also:Brunswick See also:Polytechnic, and in 1866 to See also:Karlsruhe Polytechnic. In 1871 he accepted the See also:chair of physical chemistry at See also:Leipzig. The See also:attention he had paid to chemistry in the earlier See also:part of his career enabled him to hold his own in this position, but he found his See also:work more congenial when in 1887 he was transferred to the professorship of physics. He died at Leipzig on the 24th of See also: C. See also:Poggendorff, thus starting the See also:series of that scientific periodical which is familiarly cited as Wied. See also:Ann. Another monumental work for which he was responsible was See also:Die Lehre von der Elektricitht, or, as it was called in the first instance, Lehre von Galvanismus and Elektromagnetismus, a See also:book that is unsurpassed for accuracy and comprehensiveness. He produced the first edition in 186r, and a See also:fourth, revised and enlarged, was only completed ashort See also:time before his See also:death. But his See also:original work was also important. His data for the thermal conductivity of various metals were for See also:long the most trustworthy at the disposal of physicists, and his determination of the See also:ohm in terms of the specific resistance of See also:mercury showed remarkable skill in quantitative See also:research. He carried out a number of magnetic investigations which resulted in the See also:discovery of many interesting phenomena, some of which have been,rediscovered by others; they related among other things to the effect of See also:mechanical See also:strain on the magnetic properties of the magnetic metals, to the relation between the chemical See also:composition of See also:compound bodies and their magnetic properties, and to a curious See also:parallelism between the See also:laws of torsion and of See also:magnetism. He also investigated See also:electrical endosmosis and the electrical resistance of electrolytes. His eldest son, Eilhard See also:Ernst Gustav, born at Berlin on the 1st of See also:August 1852, became professor of physics at See also:Erlangen in 1886, and his younger son, See also:Alfred, born at Berlin on the 18th of See also:July 1856, was appointed to the extraordinary professorship of Egyptology at See also:Bonn in 1892. Additional information and CommentsThere are no comments yet for this article.
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