Karl Baedeker (scientist) Karl Baedeker (scientist) Karl Wilhelm Sali Baedeker (3 February 1877 – 6 August 1914) was a German physicist, and a professor at the University of Jena. He was the grandson of Karl Baedeker, the founder of the eponymous travel guide publishing house, and the son of Fritz Baedeker (1844 - 1925), who ran the same company from 1869 until his death in 1925 (see Baedeker). One of his scientific discoveries was that the resistivity of cuprous iodide (CuI) depended on its stoichiometry. Thin films of the material became much more conductive when exposed to iodine vapor; the effect was reversible.
Maximilian Karl, 6th Prince of Thurn and Taxis Karl and Mathilde Sophie had twelve children: In 1843, Maximilian Karl and his family moved to the newly constructed princely castle of the Thurn and Taxis family in Donaustauf, which was completed in the same year as the nearby Walhalla. The castle Donaustauf was completely destroyed during a blaze on 4 March 1880. In 1827, Maximilian Karl was his father's successor as head of the private Thurn-und-Taxis-Post which had its headquarters in Frankfurt am Main. With the annexation of the Free City of Frankfurt by the Kingdom of Prussia in 1866 and the forced sale of Thurn-und-Taxis-Post for three million