Robert L. Wolke is a professor emeritus of chemistry at the University of Pittsburgh and an award-winning food columnist for the Washington Post. He is the author of Chemistry Explained and coauthor of What Einstein Kept Under His Hat.
Sean Runnette, a multiple AudioFile Earphones Award winner, has also produced several Audie Award-winning audiobooks. His film and television appearances include Two If by Sea, Copland, Sex and the City, Law & Order, Third Watch, and lots and lots of commercials.