Robert L. Mott, P.E. is professor emeritus of engineering technology at the University of Dayton. He is a member of ASEE, SME, and ASME. He is a Fellow of ASEE and a recipient of the ASEE James H. McGraw Award, Frederick J. Berger Award, and the Archie Higdon Distinguished Educator Award (From Applied Mechanics Division). He is a recipient of the SME Education Award. He holds the Bachelor of Mechanical Engineering degree from General Motors Institute (now Kettering University), and the Master of Science in Mechanical Engineering from Purdue University. His industry experience includes General Motors Corporation, consulting for several companies, and serving as an expert witness on numerous legal cases. He is the author of three textbooks: Applied Fluid Mechanics 7th ed. (co-authored with Joseph A. Untener) and Machine Elements in Mechanical Design 5th ed., published by Pearson/Prentice-Hall; Applied Strength of Materials 6th ed. (co-authored with Joseph A. Untener) with CRC Press. Joseph A. Untener, P.E. is a professor of engineering technology at the University of Dayton. He is a member of ASEE, SME, and ASME. He holds the Bachelor of Mechanical Engineering degree from General Motors Institute (now Kettering University), and the Master of Science in Industrial Administration from Purdue University. He has worked on the design and implementation of manufacturing equipment at General Motors, and served as an engineering consultant for many other companies. He teaches courses in Mechanical Engineering Technology at University of Dayton. He has co-authored two textbooks with Robert L. Mott: Applied Fluid Mechanics 7th ed. published by Pearson/Prentice-Hall, and Applied Strength of Materials 6th ed. with CRC Press.