Professor Jim Al-khalili Explains What Energy Really Is

Professor Jim Al-Khalili, a theoretical physicist and author, delves into the intricate and fascinating concept of energy. He elucidates that energy is not simply a physical entity that can be possessed or transferred; rather, it is an abstract quantity that describes the state of a system. Energy manifests in various forms – heat, light, motion, electrical potential, among others – and its transformation from one form to another drives all physical processes. At its core, energy is the capacity to do work, to bring about change. Professor Al-Khalili emphasizes that understanding energy is crucial, as it underpins our comprehension of the universe and helps us harness its power to shape our world.