The subject matter of physics books is based on the conjugate variables position and momentum, rather than energy and time. The objective of this book is to reverse that trend not only in physics but all the sciences. How is this possible in a single volume? Although energy has few recognizable properties, equipartition and the conservation of energy to name two, they apply equally to all material processes; microscopic, macroscopic, living and non-living. Separately energy and time are the least understood of the physical variables, but when combined they become a powerful tool for resolving problems that have puzzled men for generations.