Friday, October 26, 2007, 8:47 pm EDT
Department of History and Sociology of Science, University of Pennsylvania
Friday, October 26, 2007, 6:16 pm EDT
The Academy of Natural Sciences
Thursday, October 25, 2007, 8:27 pm EDT
Drexel University
Wednesday, October 24, 2007, 5:51 pm EDT
Jointly hosted by the Computing Departments of Swarthmore, Bryn Mawr and Haverford Colleges and Villanova University
Wednesday, October 24, 2007, 5:40 pm EDT
Barbara Bates Center for the Study of the History of Nursing, University of Pennsylvania
Tuesday, October 23, 2007, 7:38 pm EDT
History of Science Program, Princeton University
Tuesday, October 23, 2007, 5:00 pm EDT
Chemical Heritage Foundation, Brown Bag Lecture
Tuesday, October 23, 2007, 12:41 pm EDT
Annenberg School for Communications, University of Pennsylvania
Saturday, October 20, 2007, 8:35 pm EDT
Philadelphia Area Center for History of Science, Technology and Medicine
Thursday, October 18, 2007, 11:15 pm EDT
The College of Physicians of Philadelphia
Philadelphia Central High School for Boys and Pennsylvania State Arsenal, 1839. This daguerreotype, created by Joseph Saxton, is the oldest known photograph taken in the United States. Image courtesy of the Historical Society of Pennsylvania.
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