Inertia of Energy
Wallace Kantor · American Journal of Physics · 1954
The principle of the inertia of energy is a conclusion of the relativity theory that has far reaching consequences, in that it consolidates the laws of conservation of mass, momentum, and energy into one conservation expression. A brief historical discussion of the conservation laws and of the classical concept of the flow of energy is followed by several mathematical derivations and interesting examples of the inertia of energy. Where possible an heuristic approach is used.