What a moving electric charge creates around itself is more complex than what is characteristic of a charge in a stationary state. On the air, where space is not disturbed, the charges are balanced. Therefore, it is called magnetically and electrically neutral.
Let us examine in more detail the behavior of such a charge separately, in comparison with the motionless one, and think about the Galileo principle, and at the same time about Einstein's theory: how consistent is it really?
The difference between moving and motionless charges
A single charge, being motionless, creates an electric field, which can be called the result of ether deformation. A moving electric charge creates both an electric and a magnetic field. It is detected only by another charge, that is, a magnet. It turns out that the resting and moving charges in the ether are not equivalent to each other. With a uniform and rectilinear motion, the charge will not radiate and will not lose energy. But since part of it is spent on creating a magnetic field, the energy of this charge will become less.
An example to facilitate understanding.
This is easier to imagine with an example. If you take two identical fixed charges and place them far from each other so that the fields cannot interact, one of them will be left as is, and the other will be moved. An initially stationary charge will require acceleration, which will create a magnetic field. Part of the energy of this field will be spent on electromagnetic radiation directed into infinite space, which will no longer return as the electromotive force of self-induction when stopped. With the help of another part of the charging energy, a constant magnetic field will be created (assuming a constant charge speed). This is the energy of deformation of the ether. With uniform motion, the magnetic field will remain in constant form. If we compare two charges, then the moving one will have less energy. All the fault is the electromagnetic field of a moving charge, on which he has to spend energy.
Thus, it becomes clear that in both charges the state and energy are very different. The electric field acts on motionless and moving charges. But the latter is also affected by the magnetic field. Therefore, both energy and potential are less.
Moving charges and the Galileo principle
The state of both charges can also be traced in a moving and motionless physical body that does not have moving charged particles. And the Galileo principle here can be objectively proclaimed: a body that is physical and neutral to electricity, which moves uniformly and rectilinearly, is indistinguishable from what is at rest in relation to the Earth. It turns out that neutral bodies and charged ones manifest themselves differently in a state of rest and in motion. The Galileo principle cannot be used on air and cannot be applied to moving and motionless charged bodies.
Failure of the principle for charged bodies
Theories and works on those fields that create a moving electric charge have accumulated a lot today. For example, Heaviside showed that the electric vector formed by a charge is radial everywhere. The magnetic lines of force, which are formed by a point charge during movement, are circles, and in their centers are the lines of motion. Another scientist, Searle, solved the problem of the distribution of charge in a sphere in motion. It was found that it gives rise to a field similar to that which a moving electric charge creates, despite the fact that the latter is not a sphere, but a compressed spheroid in which the polar axis is directed in the direction of motion. Morton later showed that in the electrified sphere, which is in motion, the density on the surface will not change, but the lines of force will no longer leave it at an angle of 90 degrees.
The energy surrounding the sphere becomes larger as it moves than when the sphere is at rest. This is because, in addition to the electric field, a magnetic field also appears around the moving sphere, as in the case of a charge. Therefore, in order to perform the work, the speed for the charged sphere will be required more than for the one that is electrically neutral. Together with the charge, the effective mass of the sphere will increase. The authors are confident that this is due to the self-induction of convection current, which a moving electric charge creates from the beginning of the movement. Thus, the Galileo principle is recognized as insolvent for bodies charged with electricity.
Einstein's ideas and ether
Then it becomes clear why Einstein did not allocate a place for broadcast in the service station. After all, the very fact of recognition of the presence of ether already destroys the principle of equivalence of inertial and independent reference systems. And he, in turn, is the basis of SRT.