Russell B. DeVore [retired] was a Shift Technical Advisor and Simulator Instructor at the training center of a nuclear power plant for the Pennsylvania Power and Light Company. He is former Chair of the Arts & Sciences Division at Trident Technical College, and a former physics teacher at Bloomsburg University. Currently, he teaches on campus at a community college and online at a four-year state college. Dr. DeVore has worked in the energy and education fields for many years, contributing both academic and practical expertise to this book. He is also the author of PRACTICAL PROBLEMS IN MATHEMATICS FOR HEATING AND COOLING TECHNICIANS.