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Fall classes start September 8 — Priority Registration available July 30-August 11, details coming soon!
G – History
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Online | September 8, 2026-October 13, 2026
Tuesday: 12:45 PM-2:00 PM
What is an element, and how did we come to understand it? This six-week course uses slides and videos to trace ideas about matter from ancient philosophies to modern science. Lavoisier and others used new experimental tools to detect and characterize the elements. Mendeleev organized the results. Further experimental and theoretical approaches investigate radioactivity and atomic structure. We conclude with the creation and cosmic origins of the elements. Course outline available at http://www.udel.edu/0014587.
This offering meets for a total of 6 session(s).
INSTRUCTOR: Robert Ehrlich
EHRLICH, ROBERT — M.S., environmental engineering, University of Delaware; Ph.D., physics, Rutgers University. Research in biochemistry and environmental chemistry at University of Delaware. Former OLLI Council member and newsletter editor.