The Dirac Electron as a Massless Charge Spinning at Light Speed: Implications on Some Basic Physical Concepts

The Dirac equation, which was derived by combining, in a consistent manner, the relativistic invariance condition with the quantum probability principle, has shown its fecundity by explaining the half-integer spin of fermions and predicting antimatter, the first resulting from a wave beat between a particle and its antiparticle. In the previous paper, it was conjectured that the spinning motion of the electron is that of a massless charge vibrating at light speed, and that this internal motion is responsible for the rest mass measured in external motions (inertia) and interactions (gravitation). In this paper, we develop implications of this concept on such basic properties as time, mass, electric charge, and magnetic moment.