Herbert Philipp examining a high vacuum tube used in measuring the photoelectric emission from germanium crystals.
Tuesday, May 7, 2013, 5:00 pm EDT
Chemical Heritage Foundation, Brown Bag Lecture
Friday, May 3, 2013, 8:00 pm EDT
MCEAS seminar of the Library Company of Philadelphia
Friday, May 3, 2013, 2:00 pm EDT
Department of the History and Sociology of Science, University of Pennsylvania; Philadelphia Area Center for History of Science
Thursday, May 2, 2013, 11:00 pm EDT
Department of the History and Sociology of Science, University of Pennsylvania
Thursday, May 2, 2013, 10:00 am EDT
Thursday, May 2, 2013, 9:00 am EDT
Tuesday, April 30, 2013, 5:00 pm EDT
Chemical Heritage Foundation, Brown Bag Lecture
Tuesday, April 30, 2013, 5:00 pm EDT
Jefferson University History of Medicine Series
Tuesday, April 30, 2013, 4:00 pm EDT
RCHA Tuesday Morning Seminar Series, Rutgers University
Friday, April 26, 2013, 12:30 am EDT
Philadelphia Science Festival, Philadelphia Area Center for History of Science, Chemical Heritage Foundation
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