Professor Powell Accuses Foreign Office Of "Panic" : The Foreign office has withdrawn the invitation it issued to Professor C.F. Powell, Head of the physics department of Bristol University, to make of lecture tour of German Universities. Professor Powell is a past Nobel Prize winner and vice-president of the British peace committee. At a press conference yesterday professor Powell said that the invitation had been withdrawn because of his association with the peace movement. January 07, 1953. (Photo by Paul Popper Ltd.).