A vivid way to understand Einstein wrong.--[ Return home ]
It is easy to understand that a change of synchronisation (setting of the clocks) in a frame changes all the magnitudes of physical measurements (time dilation, length, velocities, etc...).
An exemple of such an effect is given here.
(you have to read only the preliminary agreement). An other example is given at the end of the treatment of the barn and pole (like but better) paradox.
Thus, in relativity (SR), due to the synchronisation method of Einstein, different observers see the nature distorted of different ways.
It is like if two fixed observers look to a man with different mirrors. If the man is nor fat nor thin, one observer with a convex mirror will see him fat, but the other with a concave mirror will see it thin
Obviously, like in the barn and pole paradox, both observers are not in agreement about the way the man is built.
But, nevertheless, each observer with his particular physical laws distorted by the mirror (covariance) will see no problem in his mirror about the way the nature works. Such an effect is observed with the same time dilation phenomenon in different frames.
The isotropy of the light speed is also a mirror effect (or clock synchronization effect).
But, even with such a good agreement of the experiments with the theory, the truth is that no observer see exactly with his mirror what happens really in the nature, a fact proved by the lack of agreement among the different observers (relativity of history).
The theory, built like that, is thus not acceptable in physics, except if somebody gives a way to calculate from each frame the actual dimensions of the man from the data of the mirrors (curvature, etc..) in order to obtain an agreement within the observers.
I know nobody does it, because for a lot of relativistic physicists the dimensions of a galaxy in a telescope are the true lengths. And they are not annoyed by the fact that a planet may look larger than a galaxy (it is the barn and pole paradox accepted with a blind faith in Einstein).
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