Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Friedrich Kottler (December 10, 1886 May 11, 1965) was an Austrian theoretical physicist. He was a Privatdozent, which is a title conferred in some European university systems for someone who pursues an academic career and holds all formal qualifications to become a tenured university professor. In 1923, Kottler became a professor at the University of Vienna. In 1938, after the Anschluss, he lost his professorship due to his Jewish ancestry. With the help of Albert Einstein and Wolfgang Pauli, he immigrated to America from his hometown of Vienna, Austria, settling in Rochester, New York, where he worked at the Eastman Kodak Research Laboratory.