Through the science and engineering of materials, humans have fashioned and refashioned their world, creating the life we have now. Why was the Samurai Katana Sword (15th century) such an effective weapon? How does the Arch handle stress? Why are polymers so useful but problematic? This course explores the secret life of materials in the structures and stuff we use, beginning with the basic nature of things from stone to steel, on to alloys, composites, ceramics, and plastics (benefits and problems). We explore the nature of crystalline structure and the different types of alloying for controlling properties of materials. We examine how material properties are understood by their response to stress and admire how early architects made the most of available materials to erect large structures like cathedrals. Finally we consider how materials fail and ask if failure helps to drive progress: why the first jet passenger planes kept crashing, or some theories of what contributed to the sinking of the Titanic. Our instructor is a retired research scientist and professor of physics and materials engineering who enjoys inquisitive students. Limit 24.

Thomas Lawrence, PhD
1:00—3:00 P.M. Thursday, Starts Feb. 19
Triumphant Love Lutheran Church, Upper Room
9508 Great Hills Trail (78759)