Franz Ernst Neumann

See also: Neumann

Franz Ernst Neumann (September 11th 1798 - May 23rd 1895) is a mineralogist, physicist and German mathematician .

Neumann is born with Joachimsthal, at the time in Prussia. In 1814 it gives up its studies with the Gymnasium of Berlin to engage in the countryside against Napoleon. It is rather seriously wounded with the Bataille of Ligny and must preserve the bed of many weeks. At the end of the war it turns over to the Gymnasium then it enters to the university of Berlin as studying in Théologie but quickly it turns to scientific subjects.

Its first articles relate to mainly the Cristallographie and are worth to him to be taken as Privat-docent with the Université of Königsberg where he becomes assisting professor of Minéralogie and of Physique in 1828 then is established in 1829 thanks to the support of Friedrich Wilhelm Bessel. In 1831 it studies the Specific heat and publishes an extension of the Loi of Dulong and Petit to the made up bodies.

Starting from 1832 Neumann works on the undulatory Théorie of the light. He arrives to results similar to those of Cauchy and Formula One a law of the double refraction similar to that of Fresnel. He then sticks mathematically to state the conditions with the interface of two crystalline materials.

He then turns to the electrodynamic , and publishes in 1845 and 1847 two articles establishing the laws of the induction. Its articles are former to those of Hermann Ludwig von Helmholtz and of Lord Kelvin showing that induction can be treated via the conservation of energy.

Neumann publishes little, the majority of its work are exposed in its courses, it founds with Carl Gustav Jacobi, in 1834, the seminars mathematisch-physikalisches , Jacobi gives the courses of mathematics while Neumann deals with those of physical mathematics. Few of these students one produce original research in these seminars, except notable for Gustav Kirchhoff which establishes the Lois of Kirchhoff on the basis of research project establishes during these seminars. Several other seminars will be established in Germany by taking as model the mathematisch-physikalisches of Neumann and Jacobi.

His/her son, Carl Gottfried Neumann, is him also mathematician. Neumann withdraws teaching in 1876, Li dies in Königsberg, nowadays Kaliningrad in Russia, in 1893 at the 95 years age.

References

  • Olesko, Kathryn Mr. Physics ace has Calling: Discipline and Practice in the Koenigsberg Seminar for Physics . Ithaca, NY & London: Cornell University Near, 1991.

External bonds

Random links:Go on fire | Province of Ōmi | Abbey of Saint-Ruf of Valence | A piano in grass | 24 hours of Mans 2006 | Route_de_rail_de_MTA