Family background and early education in Bod,̤ Norway; diploma in engineering from the Technical University in Trondheim, Norway, 1947. University of Bergen, 1948; work with Bjorn Trimpy on spectrometer designs; interest in accelerators; Ph.D. dissertation, Bergen, 1954; the early Norwegian nuclear reactor at Kjeller. Leaves Bergen for MIT, 1955; comments on staff (John Trump, Robert Van de Graaff); comments on students at Bergen and MIT. Re-establishes contact with Bergen in 1963; collaborations between Bergen and MIT (Arnfinn Grane, Eric Casman, Per Hansen, Lee Grodzins); discussion of Enge's apparatus designs; comments on relation among physics, business, and science technology; comments on his textbook on nuclear physics; teaching and self-assessment.