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.
Karl von Spreti Karl von Spreti Karl Borromäus Maria Heinrich Graf von Spreti (21 May 1907 – 5 April 1970) was a German diplomat. He is best known as the West German Ambassador to Guatemala from 1968 until his assassination in 1970. The story of his assassination by Guatemalan guerillas was depicted in a 1970 book, "Why Karl von Spreti Died," by Ryszard Kapuściński. Spreti was born in the Kapfing Castle near Landshut to an aristocratic family (his direct ancestor was Leo von Klenze). Like his forefather, Karl von Spreti studied architecture. He also joined the Bavarian People's Party. After his service in