I discovered that the distortion of an electron foot and the distortion of a photon foot (a reflection of the electron's shape) are the principle of the constancy of the speed of light itself. The distortion of the photon foot, which grows in proportion to the speed of a photon, has a structure that inherently changes the way time progresses. It is believed that this is why Maxwell's equations are universal under Lorentz transformations.Because Maxwell's equations are invariant under Lorentz transformations, changes in electric and magnetic fields are explained as effects of special relativity. However, when special relativity is applied to electromagnetic phenomena, paradoxes sometimes appear. For example, an electric charge that is stationary in a stationary system appears to be moving when viewed from an inertial system. This causes an electric current to flow and generates a magnetic field, but in reality, this phenomenon does not occur. Also, even though electrons move at a snail's speed when a current is flowing, a magnetic field is generated.This paradoxical example can be explained without contradiction by the Lorentz transformation. However, the paradox does not disappear. The key to solving this mystery lies in the distortion of the foot of an electron and the distortion of the foot of a photon, which reflects the electron’s appearance.