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.
Baedeker by Ernest Benn. His brother joined him in the venture shortly afterwards. Hermann Augustine Piehler (1888−1987)—better known as H.A. Piehler in the publishing world—was an Englishman of German descent who became the chief editor of the English editions after the Muirheads left. During his student days, Karl Friedrich Baedeker had spent a year in England and had lived with Piehler at his London residence. In 1948, when Karl Friedrich decided to re-establish the Baedeker firm in Malente (British zone, in Germany), his publishing licence was endorsed by Piehler, who was then a colonel in British Intelligence and the head of