Image
Herbert Philipp examining a high vacuum tube used in measuring the photoelectric emission from germanium crystals.
Wednesday, February 9, 2022, 9:00 pm EST
Columbia University
Wednesday, February 9, 2022, 6:30 pm EST
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Tuesday, February 8, 2022, 9:00 pm EST
Columbia University
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Harvard University
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Saturday, February 5, 2022, 5:00 pm EST
Wagner Free Institute of Science
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