Prof. George Greenstein, Amherst College Teaching the Mysteries of Quantum Mechanics at the Undergraduate Level February 15, 2006 Richard Feynman once commented that "nobody understands Quantum Mechanics." The creators of the theory recognized that it was saying something important about the nature of physical reality, but just what it was saying was unclear. In recent years these questions of interpretation have resurfaced with renewed vigor, due to two developments: Bell's theorem showed that rival interpretations were subject to experimental test. Technological advances made it possible to actually conduct what once were merely thought experiments. This talk discusses modern research on the foundations of quantum mechanics, with particular emphasis on how this material (including actual experiments) can be integrated into the undergraduate curriculum. George Greenstein is Professor of Astronomy at Amherst College. He received a B.S, from Stanford and Ph.D from Yale (both in physics. In addition to more than fifty research papers and essays he is the author of three books including Frozen Stars, The Symbiotic Universe, and Modern Research on the Foundation of Quantum Mechanics. He is a recipient of the American Institute of Physics/ U,S Steel Science Writing award.