Dr. Cindy Schwarz is a Professor of Physics at Vassar College in Poughkeepsie NY. She received her P.h.D. from Yale University in 1985 for her work in experimental particle physics. She has written two other books A Tour of the Subatomic Zoo and Interactive Physics Player Workbook and a CD-ROM Interactive Journey through Physics. She is a member of APS, AAPT and is active on national and local committees.