C.K.N. Patel with his experimental 'flowing gas' laser. The glowing tube contains nitrogen in which electrical discharge is taking place.
Wednesday, September 23, 2026, 5:45 pm EDT
American Institute of Physics
Thursday, September 24, 2026, 1:00 pm EDT
Thursday, September 24, 2026, 3:00 pm EDT
Johns Hopkins University
Friday, September 25, 2026, 11:00 am EDT
Tuesday, September 29, 2026, 4:00 am EDT
Max Planck Institute for the History of Scienc
Tuesday, September 29, 2026, 12:00 pm EDT
Columbia University
Wednesday, September 30, 2026, 11:00 am EDT
Wednesday, September 30, 2026, 3:00 pm EDT
Johns Hopkins University
Wednesday, September 30, 2026, 6:00 pm EDT
Columbia University
Friday, October 2, 2026, 12:00 pm EDT
Tuesday, June 23, 2026, 6:00 pm EDT
American Philosophical Society
Friday, June 19, 2026, 12:00 pm EDT
Thursday, June 18, 2026, 12:00 pm EDT
American Philosophical Society
Thursday, June 18, 2026, 11:00 am EDT
Tuesday, June 16, 2026, 2:00 pm EDT
Saturday, June 13, 2026, 11:30 am EDT
Linda Hall Library
Friday, June 12, 2026, 11:00 am EDT
Thursday, June 11, 2026, 6:00 pm EDT
Wagner Free Institute of Science
Thursday, June 11, 2026, 10:00 am EDT
Wednesday, June 10, 2026, 12:00 pm EDT
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