Herbert Philipp examining a high vacuum tube used in measuring the photoelectric emission from germanium crystals.
Wednesday, March 1, 2023, 12:00 pm EST
Tuesday, February 28, 2023, 7:00 pm EST
American Philosophical Society
Tuesday, February 28, 2023, 2:00 pm EST
Monday, February 27, 2023, 8:30 pm EST
Yale University
Monday, February 27, 2023, 8:30 pm EST
University of Pennsylvania
Monday, February 27, 2023, 8:00 pm EST
Princeton University
Saturday, February 25, 2023, 7:00 pm EST
Science History Institute
Friday, February 24, 2023, 5:00 pm EST
University of Pennsylvania
Friday, February 24, 2023, 12:00 pm EST
Thursday, February 23, 2023, 11:30 pm EST
Linda Hall Library
© 2026 Consortium for History of Science, Technology and Medicine | Copyright Infringement