What Einstein Told His Barber: More Scientific Answers to Everyday Questions

Robert L. Wolke is professor emeritus of chemistry at the University of Pittsburgh and researcher in both chemistry and physics. As an educator and lecturer, he enjoys a national reputation for his ability to make science understandable and enjoyable. He is the author of What Einstein Didn't Know: Scientific Answers to Everyday Questions; Impact: Science on Society; and Chemistry Explained, as well as dozens of scientific research papers. His bi-weekly column, "Food 101," in which he answers scientific questions about food, appears in The Washington Post. He lives in Pittsburgh.