Harold Miller Lewis (1893-1978). Laboratory notebook, recording Edwin H. Armstrong's discovery of superheterodyne reception. Autograph manuscript, 137 pp. Paris, July 21, 1918-January 8, 1919. -- RBML
Friday, February 28, 2014, 12:00 am EST
Hagley Museum and Library
Thursday, February 27, 2014, 8:00 pm EST
Johns Hopkins University
Wednesday, February 26, 2014, 5:00 pm EST
Barbara Bates Center, University of Pennsylvania
Tuesday, February 25, 2014, 10:30 pm EST
Department of History & Politics, Drexel University
Tuesday, February 25, 2014, 8:30 pm EST
Drexel University, Department of History and Political Science
Tuesday, February 25, 2014, 5:00 pm EST
Chemical Heritage Foundation, Brown Bag Lecture
Tuesday, February 25, 2014, 4:00 pm EST
RCHA Tuesday Morning Seminar Series, Rutgers University
Monday, February 24, 2014, 8:30 pm EST
Department of the History and Sociology of Science, University of Pennsylvania
Thursday, February 20, 2014, 8:00 pm EST
Philadelphia Area Seminar on the History of Mathematics, Villanova University
Thursday, February 20, 2014, 8:00 pm EST
Johns Hopkins University
© 2026 Consortium for History of Science, Technology and Medicine | Copyright Infringement