....We must have a workable concept of the structure of matter that satisfies the observation that the inertial and gravitational masses of an object are equivalent. When we accelerate electrons or protons in an electromagnetic field they become less responsive to the fields the more they are accelerated. This has been interpreted as an increase in particle mass, which is unhelpful until we understand the origin of mass. If the charged subtrons have little intrinsic mass, how do they, in combination, give the electron, proton and neutron the property of mass?
An electric field will transversely squash the subtron orbits within an electron or proton. If you cause acceleration at one point in a circular orbit and a deceleration at the diametrically opposite point of the orbit, the result is an elliptical orbit. In the case of an accelerated particle, the orbit will tend to flatten in the direction of the applied force. It seems that as more energy is supplied to accelerate the particle, the more that energy is assimilated inelastically in further distortion rather than in acceleration. In other words, the electric force becomes less and less effective at acceleration, which Einstein would have us interpret as an increase in mass. For comparison, Weber’s classical approach to the problem has “a decrease in the electrical force and not a change in the inertial mass.”[16] This model implies that the charge centres of a proton at rest are more separated than those in an electron at rest. That allows the proton to distort more readily than an electron in the same electric field and may account for their classical differences in size and mass. “The advantage of this interpretation of the conversion of mass into energy and vice versa is that we are not forced to accept the increase of mass to infinity as a moving mass approaches the speed of light.”[17] ........