WHO: Dr. Gino Segre, professor emeritus of physics, School of Arts and Sciences, University of Pennsylvania

WHAT: The Penn Science Cafe lecture series, free and open to the public, takes science out of the laboratory and treats it to a night on the town.  The Cafe is your chance to ask a leading expert your questions about science.

WHERE: The MarBar, 40th and Walnut streets, Philadelphia

WHEN: Thursday, Sept. 27, 6 p.m.

Doors open at 5:30 p.m.

Menu items available for purchase.

This month at the Penn Science Cafe, World War II looms on the horizon as the world's leading quantum physicists gather to explore the very nature of matter and the origins of the universe.  Dr. Gino Segre, author and theoretical physicist at Penn, will discuss his new book, "Faust in Copenhagen-A Struggle for the Soul of Physics."

It's April 1932 in Denmark, and Neils Bohr and friends gather to mark "the last moment in the lives of these scientists when they could still laugh together at struggles between the Lord and Mephistopheles."

Of the book, a reviewer in the San Francisco Chronicle said, "Accompanying [Segre's} engaging writing are generally accessible explanations of scientific concepts both basic and complex...much to the delight of this lay reader, the book is both equation- and jargon-free."