Quantum Theory / Particle Physics
July 7, 2018
electromagnetic wave, massless, photon, limit speed, heat, relativity
In this article, four issues have reviewed and analyzed: What is the physical nature of energy? Does energy have mass? What was the mass-energy equivalence before relativity? According to the work-energy theorem, what is the physical nature of force, when force is displacing, energy is produced? Finally, the theoretical and empirical approach to the photon mass is compared.