Bachelor of Science, Case Institute of Technology, 1960. Master of Arts, Case Institute of Technology, 1963. Doctor of Philosophy, Case Institute of Technology, 1965.
Assistant editor Tooling and Production magazine, Cleveland, 1958-1960, associate editor, 1961. Editor The Explorer, Cleveland Museum of Natural History, 1960-1962. Director Project on History of Recent Physics in the United States, American Institute Physics, New York City, 1964-1965, Center for History of Physics, 1965-1974.
Professor history of science and technical Massachusetts Institute of Technology, 1974—1996, director oral history program, 1975—1986, professor emeritus, since 1996. Visiting professor University California, Berkeley, 2001, Regents lecturer, 03. Visiting professor New York University, 2007—2008.
Member committee social organization science Social Science Research Council, 1968-1971. Advisory committee to Library of Congress on National Union Catalog of Manuscript Collections, 1965-1971. Member editorial advisory board Joseph Henry Papers, Smithsonian Institution, 1968-1986.
Committee on history of recent biochemistry and molecular biology American Academy Arts and Sciences, 1968-1980, project director committee history contemporary physics, 1966-1974. Member advisory board Center for the Study of Consumer Movement, Consumers Union. Member humanities advisory board Station WGBH, Boston, 1978-1979.
Member advisory board Science in American Life, Smithsonian Institute, 1990-1994. Consultant President Advisory Committee Human Radiation Experiments, 1994-1995. Board directors Student Pugwash United States of America, since 2008.
Served with United States Army, 1951-1953. Fellow American Association for the Advancement of Science (council 1969-1975, committee on meetings 1969-1972), History of Science Society (council 1968-1970, chairman Metropolitan New York Section 1969-1970), Society for History of Technology (advisory council 1977-1979).
Married Shirley Marks (divorced 1976). 1 child, Susan; Married JoAnn Hughes, 1993.