Dielectric constant and magnetic permeability in the Newtonian gravitational field derived by the elastic energy

Abstract

The pressure distribution in the Earth’s interior is expressed using the Adams‐ Williamson equation. The elastic energy is stored inside the Earth by the pressure. The Newtonian gravitation is derived by this energy. The Newtonian gravitation refracts light at the surface of the Sun. When light is an electromagnetic wave, this refraction is expressed by the dielectric constant and magnetic permeability in the Newtonian gravitational field. The propagation of electromagnetic waves in a black hole is discussed using the dielectric constant and magnetic permeability.