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Harvard University Archives Photograph Collection: Portraits, ca. 1852-ca. 2004

Title: Harvard University Archives Photograph Collection: Portraits. ca.1852-ca.2004.

Photographs of individuals associated with Harvard University: faculty, students, administrators, staff, honorees, and habitués of Harvard Square. For those whose lives pre-date the era of photography, the contents of the folders are often photographic reproductions of other image types, such as etchings, paintings, or drawings. In a few cases, the images themselves may be original etchings or sketches.

ArchivalResource: 50 cubic ft.; 20,000 photographs; 10,000 folders.

http://id.lib.harvard.edu/ead/hua04006/catalog View

Chaffee, Emory Leon, 1885-1975. Oral history interview with Emory Leon Chaffee, 1964 January 31.

Title: Oral history interview with Emory Leon Chaffee, 1964 January 31.

Graduate study at Harvard University; greatest influence was Wallace C. Sabine; Ph.D. on e/m as a function of accelerating voltage supervised by Harry Moss, 1907; as corollary he developed the "Chaffee quenched gap" for producing continuous oscillations. Work on oxide filament in thermionic vacuum tubes, 1910; the Chaffee Gap used in wireless telegraphy experiments, 1911; mercury arc work with Pierce resulting in mercury vapor detector. World War I: torpedo detectors, double modulation, warbling the spectrum by rotating condenser, super-heterodyne; travels to France and Italy to demonstrate his transmitter. Starts first vacuum tube course in U.S. at Harvard, 1920; work on regeneration in coupled circuits, 1924; elaborate equivalent circuits, 1929; works on electronic response of retina with Bovie (first application of vacuum tubes to biophysics; continued some work of Einthoven), 1920s. In 1930s, works on stimulation of autonomic responses in a monkey's brain (R. U. Light), and power tubes and non-linear systems; becomes chairman of Power Tubes Committee of the Institute of Radio Engineers. Also a short discussion of the invention of crystal oscillators by Cady, Pierce, and Arnold.

ArchivalResource: Preliminary transcript.

http://www.worldcat.org/oclc/82630906 View

Purcell, Edward M. Oral history interview with Edward Mills Purcell, 1977 June 8 and 14.

Title: Oral history interview with Edward Mills Purcell, 1977 June 8 and 14.

Early life in Illinois; B.S. from Purdue University under Karl Lark-Horovitz, 1929-1933. Visit to Technische Hochschule in Karlsruhe. Theoretical and experimental work and teaching at Harvard University, 1934-1941, under Emory L. Chaffee, Kenneth T. Bainbridge, John Van Vleck. World War II research on radar at MIT Radiation Laboratory, 1941-1946. Return to Harvard; teaching, nuclear magnetic resonance and 21-cm line research. Discusses government consulting work, 1950-1970, especially President's Science Advisory Committee, American Physical Society presidency; teaching at Harvard. Interests in astrophysics, developing physics curricula. Also prominently mentioned are: Kenneth Tompkins Bainbridge, Felix Bloch, Bobby Cutler, Robert Henry Dicke, Edwards, Dwight D. Eisenhower, Harold Ewen, Ferry, William Francis Giauque, William Webster Hansen, Malcolm Hebb, Ted Hunt, Lyndon B. Johnson, Fritz Leonhart, Dunlap McNair, Otto Oldenburg, Jan Hendrik Oort, Wolfgang Pauli, Robert V. Pound, Isidor Isaac Rabi, Norman Foster Ramsey, Franklin D. Roosevelt, Schnabel, Julian R. Schwinger, Francis Eugene Simon, Charles Steinmetz, Henry Torrey, Hendrik Christoffell van de Hulst, John Von Neumann, Isidor Walerstein, Walter Witzel, Hubert J. Yearian, Jerrold Reinach Zacharias; Bell System Technical Journal, Great Britain Royal Air Force Coastal Command, Radio Research Laboratory, Illinois Southeastern Telephone Co., Killian Committee, Lawrence Radiation Laboratory, National Academy of Sciences, Rijksuniversiteit te Leiden, Unitarian Church, United States Office of Naval Research, University of California at Berkeley, and Voice of America.

ArchivalResource: Transcript, 59 pp.

http://www.worldcat.org/oclc/82576526 View