In this interview, Geoffrey Burbidge discusses the history of physics over the course of his career.  Topics discussed include: Astronomical Society of the Pacific; E. Margaret Burbridge; American Astronomical Society; Hale Observatory; Lick Observatory; radio astronomy; Naval Research Laboratory; x-ray astronomy; Bruno Rossi; optical astronomy; Kitt Peak National Observatory; air and light pollution; Allan Sandage; Harvard University; Princeton University; Lord Kelvin; S.