Schack August Steenberg Krogh was a Danish professor at the department of zoophysiology at the University of Copenhagen from 1916 to 1945. He contributed a number of fundamental discoveries within several fields of physiology, and is famous for developing Krogh's principle. The Nobel Prize in Physiology or Medicine 1920, announced October 28, 1920. August Krogh, “for his discovery of the capillary motor regulating mechanism”. August Krogh: born 1874, Grenå, Denmark. Wiki link Data: the Nobel Foundation (CC0).