What is energy? (brief)
copyright 2017 Jennifer Coopersmith Feynman brilliantly teaches us that energy is “that which is conserved” (in a closed system). At high school or college we also learn the succinct definition – energy is “work-capacity” (of a system). Lanczos gives us further insights. He shows that, counter to common expectation, a physical system is not (or … Continue reading What is energy? (brief)
Jennifer Coopersmith 