Herbert Philipp examining a high vacuum tube used in measuring the photoelectric emission from germanium crystals.
Wednesday, May 10, 2017, 9:30 pm EDT
Columbia University (New York, NY)
Monday, May 8, 2017, 4:00 pm EDT
Chemical Heritage Foundation (Philadelphia, PA)
Friday, May 5, 2017, 5:00 pm EDT
Thursday, May 4, 2017, 11:00 pm EDT
Hagley Museum and Library (Wilmington, DE)
Thursday, May 4, 2017, 6:00 pm EDT
Wednesday, May 3, 2017, 6:30 pm EDT
Tuesday, May 2, 2017, 6:00 pm EDT
Tuesday, May 2, 2017, 1:00 pm EDT
Columbia University, (New York, NY)
Monday, May 1, 2017, 4:00 pm EDT
Chemical Heritage Foundation (Philadelphia, PA)
Wednesday, April 26, 2017, 10:00 am EDT
New York Academy of Medicine (New York, NY)
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