The energy of mutual charge interaction
Chapter 2 has dealt with the important topic of the mutual interaction of electric charges, meaning essentially the actions that depend upon charge motion. This is a very complicated subject and I need to qualify some aspects of what I stated in this chapter, which was written before I came to realize that the Coulomb electrostatic field action is an instantaneous action-at-a-distance, as noted in the commentary on chapter 1.
So far as the mutual interactions are concerned there are, therefore, no field energy components of the kind EM as suggested on page 24 of chapter 2. They do not exist because the retardation speed parameter c is no longer a factor in the analysis of the electric field system.
As stated in the commentary on chapter 1, one needs to relate the motion of interacting charges to a common reference frame, the electromagnetic frame of reference set by the aether itself. An isolated electron in motion is not interacting with other charge, because even though there are charges in the aether itself and an electron moving through the aether will disturb those charges by its electric field action, those aether charges define the electromagnetic frame of reference and so are not interacting with the electron in setting up a magnetic field.
As to the mutual interaction of charges in motion, since we rule out of consideration the electron having any dynamic electric field energy component and have also ruled out any self-excited magnetic energy component to leave only its kinetic energy, one may now wonder how the mutual interaction is affected. Here, common sense, tells us that there can be no such thing as 'mutual kinetic energy', if only because the aggregate sum of any such energy will, in all probability, actually determine the local inertial frame of reference, as discussed in chapter 2.
This then brings us to the result formulated in equation (2.6) on page 27 of chapter 2. Equation (2.5) is no longer relevant. We are left with the proposition that, though the aether charge displaced by field action cannot, of itself, set up a magnetic energy state, that aether charge in reacting can acquire kinetic energy (KR) and this, in being dispersed by pooling with the sea of energy of the aether, will, by equation (2.6), define a negative quantity (HM). This latter quantity is the magnetic field energy and it 'signature' is recorded in the orientation and scale of the state of motion of the aether charge. The onward discussion in chapter 2 brought to bear the extensive evidence supporting this, including magnetocaloric cooling and the g-factor analysis discussed on pp. 32-36.
The law of electrodynamics
This section of 'Physics without Einstein' at pp. 39-47 is the most important contribution of the work. The book was written to mark the event of getting my first major paper on this controversial subject published in a mainstream scientific periodical, this being mentioned at the end of that section. It was entitled 'The Law of Electrodynamics'.[1969a]. The law in its more general form, as derived in the book, pointed to anomalies on the energy front, anomalies which aroused my interest in the possibility of tapping energy from the aether.
Note, on this latter theme, that I was also intrigued by the outcome of my discussion on magnetocaloric effects on pp. 28-30 of the book. Using intense magnetic fields one might well be able to prove that we can cool the vacuum medium, the aether, to, as it were, temperatures below absolute zero. This would be extraction of energy from the aether from which the aether would recover to an equilibrium state by draining some of its surplus energy which is otherwise deployed in the creation of protons and electrons, a process which came to understand only some four or so years after writing 'Physics without Einstein' and which I discuss further in the commentary on chapter 7.