Sujet : Re: [SR and synchronization] Cognitive Dissonances and Mental Blockage
De : r.hachel (at) *nospam* tiscali.fr (Richard Hachel)
Groupes : sci.physics.relativityDate : 30. Aug 2024, 11:38:09
Autres entêtes
Organisation : Nemoweb
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Le 30/08/2024 à 12:16, Python a écrit :
I.1.
Paragraph I.1. describes a procedure that looks non symmetric at
first sight: clocks A and B are not treated exactly the same way
(two measures for A, one for B for instance), nevertheless at the
end of the day one can *prove* that the results are symmetric and
that inverting A and B would lead to the same result.
Your thing looks like Scientology.
It's not by constantly repeating the same blunder that it becomes a truth.
There is a symmetry, and a reciprocity in relativistic physics (there is no ether, no privileged frame of reference, and no privileged point either, the reciprocity of effects is total).
But you confuse the forward speed of light, and the return speed of light. You think that reciprocity and symmetry are there.
That light moves at the same speed for A as for B regardless of the direction of approach or flight.
This is forgetting the notion of anisochrony, which Einstein sweeps in front of his door, without even glancing at it.
The reciprocity is that it flees A in the same way that on the way back it flees B, then it approaches A in the same way that on the way out it approached B.
But to affirm that the speed is the same in both directions is false. It is only partially true for an observer placed far away, and on a perpendicular.
Perpendicular which will change angle by change of reference frame (Lorentz transformations).
R.H.