Johann Heinrich Jakob Müller
Johann Heinrich Jacob Müller ( born April 30, 1809 in Kassel, † October 3, 1875 in Freiburg im Breisgau ) was a German mathematician and physicist.
His parents were the painter and engraver Franz Hubert Müller (1784-1835) and Anna Maria Gertrud Koerber. His brothers were Andreas (1811-1890), Constantin ( 1815-49 ) and Carl ( 1818-93 ). He spent his youth in Frankfurt / Main and Darmstadt, where his father was Grand Duke Ludewig called I. 1817 in Gallery inspector and in 1823 was appointed Director of the Gemäldegalerie.
In 1829 he began his studies of mathematics and physics in Bonn with Julius Plücker and from 1832 in casting at Justus von Liebig, where he show in the following year with an explanation of the isochromatic curves, which uniaxial, parallel cut with the axis crystals in a homogeneous polarized light to Dr. phil. doctorate.
In 1834 he became a teacher at the Darmstadt School and in 1837 at the Realschule to casting.
His work Introduction to Physics from 1842/43 Claude Servais Mathias goes on Pouillets Elements de physique et de expérimentale meteorologist from 1827 back.
In 1844 he was, as the successor of Gustav Friedrich usurers ( 1780-1843 ) at the University of Freiburg transferred the Department of Physics and Technology, citing as a full professor. Soon after, he was also Dean.
He conducted research in optics, to galvanism and magnetism as well as light and heat radiation; since 1846, he also studied Fraunhofer lines, where he gained new insights about ultraviolet rays and later also on the thermal effect of the solar spectrum. In 1856 he exhibited ultraviolet rays after by photography. He determined experimentally the laws of the galvanic Erglühens of wires, which are also examined in 1861 by Johann Karl Friedrich Zöllner anew and become of great importance especially after the introduction of the electric light bulb. In 1858 he attacked Rumford ( 1753-1814 ) differential thermometer again.
His book Synopsis of Physics and Meteorology of 1854 enthusiastic Emil Berliner.
Publications
- Outline of Physics and Meteorology, 1846, Fr Vieweg Braunschweig, 520 pp.
- Letters to a German princess, on different subjects in physics and philosophy. Edited on 's New by the French. In three parts. 1848; ( Revision of the 234 letters of Leonhard Euler Friederike Charlotte of Brandenburg- Schwedt from 1760-62 ) ( limited preview on Google Book Search )
- Report on the latest advances in physics. 1849
- Textbook of Physics and Meteorology: part ways after Pouillet 's ... 1868 ( limited preview on Google Book Search )
- Textbook of cosmic physics. 1856
- Principles of physics and meteorology. Hippolyte Baillière, London 1847
- Rudiments of geometric Disciplinen for high schools, junior high and vocational schools. 1860
- Floor plan of physics and meteorology. 1866
- Broad crystallography. 1868
- The medicinische physics. 1866; Adolf Fick
- The temperature of the earth. In: Harry Blake Hodges: A Course in Scientific German. ( limited preview on Google Book Search )