Baedeker to have three of his four sons − Hans, Ernst and Dietrich − beside him in the firm, as editors and writers. Karl Baedeker III, the fourth son, entered academia and rose to become a professor of physics at the University of Jena. He was killed in action at the Battle of Liège in August 1914. It was his son Karl Friedrich who revived Verlag Karl Baedeker after the Second World War. During his reign, which lasted over 50 years, Fritz produced 73 new "Baedekers", as they came to be known universally. The Baedeker travel guides became so popular that
Karl Baedeker (scientist) the first transparent conducting oxide (TCO) thin film, cadmium oxide (CdO), in 1907. TCOs are now ubiquitous in optoelectronics and a multibillion-dollar industry. Baedeker was killed in action in August 1914 during World War I at the Battle of Liège . His son, Karl Friedrich Baedeker revived the Baedeker publishing house after the Second World War. In 2014, a conference on transparent conducting oxides was held in Leipzig to commemorate the centenary of Baedeker's death. A paper on the life and work of Baedeker was published in the proceedings of the meeting. Karl Baedeker (scientist) Karl Wilhelm Sali Baedeker (3