Query 31 of Newton's Opticks (1718).
Tuesday, October 6, 2026, 8:00 am EDT
Tuesday, October 6, 2026, 10:00 am EDT
Wednesday, October 7, 2026, 8:00 am EDT
Wednesday, October 7, 2026, 10:30 am EDT
Wednesday, October 7, 2026, 11:00 am EDT
University of Manchester
Wednesday, October 7, 2026, 12:00 pm EDT
Wednesday, October 7, 2026, 4:00 pm EDT
University of Toronto
Thursday, October 8, 2026, 12:00 pm EDT
Thursday, October 8, 2026, 6:00 pm EDT
College of Physicians of Philadelphia
Friday, October 9, 2026, 12:30 pm EDT
Wednesday, September 23, 2026, 12:00 pm EDT
Wednesday, September 23, 2026, 10:00 am EDT
Tuesday, September 22, 2026, 1:00 pm EDT
Tuesday, September 22, 2026, 12:00 pm EDT
Friday, September 18, 2026, 12:00 pm EDT
Friday, September 18, 2026, 10:00 am EDT
Thursday, September 17, 2026, 3:00 pm EDT
Johns Hopkins University
Thursday, September 17, 2026, 3:00 pm EDT
Max Planck Institute for the History of Science
Thursday, September 17, 2026, 2:00 pm EDT
Thursday, September 17, 2026, 10:00 am EDT
Wednesday, October 28, 2026, 6:30 pm EDT
Columbia University in the City of New York
NYU Gallatin School of Individualized Study
The Graduate Center, City University of New York
The New York Academy of Medicine
The New York Academy of Sciences
Thursday, October 29, 2026, 3:00 pm EDT
Johns Hopkins University
Friday, October 30, 2026, 3:30 pm EDT
University of Pittsburgh
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