Physicists, chemists, engineers, geologists—though the scientists featured within the pages of this book are different from each other in many ways, there is something they all share. They are energy scientists who made breakthrough discoveries in atomic energy, thermal engineering, semiconductors, and renewable and non-conventional energy. With a shared passion for scientific exploration, dedication to the process of research, and the desire to change our lives, their discoveries are not just scientific advances, but cornerstones of brand new technologies.