Example: If you have a metal rod and suspect that it will shrink in the presence of cold air, you might place it in a refrigerator, take it out after a time and see if it is smaller. Of course, you would measure it with a ruler before and after the 'interaction' (cooling) and check for a difference. Let's say that the ruler is made out of the same material as the metal rod and is the same size. Then we can put one rod next to the other and, seeing that they are both of equal length, throw both of them into the refrigerator. After they have cooled we take them out and see if they are the same. Right ?? Is this an experiment ??
No. But this is what MichelsonMorley did. Historically, it did not matter because the result led to the right theory of nature (relativity). One thing should be corrected however. Because the M&M experiment was not logically valid, the LorentzFitzgerald contraction is not "ad hoc". It is, in fact, born of clear logical necessity.
Relativistic invariance can be accomodated in the presence of an absolute reference frame.
'A' proceeds at some finite velocity through the absolute reference frame. An absolute standard can be detected only by reference to the 'context' in which motion takes place, i.e. the backdrop of stars or the 'cosmic' background radiation. Here 'absolute' is defined as something two observers could agree upon unambiguously as an absolute standard. And this standard can be pinned down, in theory, to accuracies on the order of Compton wavelengths.
The observable results of relativistic velocity are consistent with the present theory by the following mechanism.
Translational movement of a 'particle' through the continuum will result in a contraction of the particle in the direction of motion. 2R/v = v/(4pi R^2) or 2R/v = v/x and v = (2Rx)^1/2 where x = number of positional fields encountered per unit time (4pi R^2). See #11 If x were altered by a factor 'z', the resultant confinement (D) would be altered by a factor z^1/2. D = v/x = [(2Rzx)^1/2] / [x] = [z^1/2] [(2R/x)^1/2]
= [z^1/2] [(2R / 4pi R^2)^1/2] = [z^1/2] [1 / (2piR)^1/2 ] Such a change would occur when x is 'reapportioned' by factors of (1+u) , (1u) and (1) where u is any absolute velocity less than unit velocity. That is, the particle incounters 1+u more fields from the front per unit time and 1u from the back while the sides remain constant (in the direction of absolute velocity). The total number of fields encountered per unit time must remain constant at 4pi R^2 ( for all velocities less than c ). Therefore, only the reaction velocity in the direction of motion is affected which in turn determines confinement.
z^1/2 = { [(1+u)(1u)(1)] }^1/2 = (1u^2)^1/2 which is the standard coefficient of relativistic contraction.
