2016 S. Patricia McKenna, Centennial Lecture in Mathematics: “In Praise of Pure Reason

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Presented by David Seppala-Holtzman, Ph.D., SJC professor and chair of mathematics and computer science, “In Praise of Pure Reason: How the Greeks Deduced the Sizes of the Earth, the Moon and the Sun as well as the Distances Between Them” explained how Aristarchus, Eratosthenes and Archimedes used math to learn astonishingly advanced information about the solar system. Branded as The S. Patricia McKenna, C.S.J., Centennial Lecture in Mathematics, the presentation was preceded by an introduction from Vice President for Academic Affairs Jill Rehmann, Ph.D.; Adolescent Education Chair S. Nancy Gilchriest, SSND, Ed.D.; and Department of Communication Studies Associate Professor Joseph D. Ross, Ph.D. Lecture date: March 31, 2016 Event photos:

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