In this day and age of ever-shorter time schedules and increasing expectations of productivity gains in every aspect of engineering activity, creative problem solving has become prominent among the most important skills that engineers possess. Unfortunately, in the day-to-day intensity of the search for new engineering solutions, it is easy to lose touch with the foundations of that creativity. This book and its companion, Dialogues Concerning Two New Sciences, by Galileo Galilei, 1638, are intended to provide the working engineer a visit home to the foundations of the engineering profession.