Johann Schweigger
Johann Salomo Christoph Schweigger ( born April 8, 1779 Erlangen, † September 6, 1857 in Halle an der Saale ) was a German physicist and chemist.
Schweigger first studied in Erlangen philosophy with Franz August Wolf, but then by Georg Friedrich Hildebrandt (1764-1816) and Karl Christian country Dorff could be swayed to a change in the natural sciences. His dissertation was a topic from the Odes of Homer to content. This he habilitated as Privatdozent.
In October 1803 he was hired as a professor at the Gymnasium in Bayreuth and 1811 in Nuremberg at the Polytechnic School. Later Schweigger Professor of Physics and Chemistry in Erlangen. 1819 went to the University of Halle. In Bayreuth, he became a member of the Masonic Lodge " Zur Sonne ".
The physical work Schweiggers pertain to electrical issues. Already in 1808 he had constructed electrometer to measure the electric force due to the magnetic. Immediately after Oersted's discovery in 1820 invented Schweigger the electromagnetic multiplier that bears his name ( Schweigger multiplier ). This was a galvanic current meter with wire wrapping, also called galvanometer. It had a magnetic needle as in oersteds, which was repeatedly wrapped with a wire. The needle was deflected by the magnetic effect of electric current and thus showed its strength.
In 1811 he took over the publication of the Journal of Chemistry and Physics of Adolf Gehlen ( 1775-1815 ). He himself founded as a continuation of this journal, the Yearbook of Chemistry and Physics, which he later the adoptive son of his brother August Friedrich Schweigger, the professor of medicine Franz Wilhelm Schweigger Seidel left.
Johann Salomo Christoph Schweigger died on September 6, 1857 in Halle an der Saale.
Works
- Introduction to the mythology, from the standpoint of natural science. Hall (1836 )
- About scientific mysteries in its relation to the literature of antiquity. Hall (1843 )
- About the electron of the ancients. Greifswald ( 1848)
- About the stoichiometric series. Hall (1853 )