Re: the notion of relativity of simultaneity

Am Sonntag000013, 13.10.2024 um 14:38 schrieb Richard Hachel:

Le 13/10/2024 à 09:02, Thomas Heger a écrit :

Am Samstag000012, 12.10.2024 um 13:56 schrieb Richard Hachel:

Le 12/10/2024 à 11:05, Mikko a écrit :

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This is actually not true, because the world which SRT describes isn't the world we live in.

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A failed attempt is still an attempt. Therefore your "because" is wrong.
SR is an attempt to describe the world. Later it was found out that the
world is different but that does not affect what SR is.
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SRT is about a world, where all thinfgs drift around in a dark and starless void,

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No, it is not. SR is about the geometry of the world, not about its matter
content except that the matter content must be compatible with the geometry.

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SR is first and foremost an attempt to explain the Michelson-Morley experiment.
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The calculation shows that, according to the experiment, w=v+c=c
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Which is absurd.

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No, it's not absurd.
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You need to think in terms of physical reality and ask yourself the question: why?
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Or: Why doesn't the speed of light depend on the velocity of the source?
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The reason must be: because speed of light isn't controlled by the source, but by the space inbetween source and receiver.
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This is an obvious requirement, anyhow, because if you would give it up, than all sorts of strange effect could emerge, which we do not observe.
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E.g.
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if the space itself would not controll the speed of light, than light could have different velocities in the wastness of the universe.
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Now, already a miniscule different velocity of light rays would add up to large discrepancies in the time of arival at a remote spote, where an observer would like to observe them.
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Since everything moves in the universe, we would encounter 'blur' effects, if light would not always maintain the same speed, because we could see rays originating from the same spot at different times.
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This would look, as if the e.g. star 'smeared out' and had a strange halo or similar, because the solar system moves and the entire galaxy rotates.
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...
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TH

 The general law of addition of observable speeds, I gave it here.
 <http://nemoweb.net/jntp?4VPmaNpqsPlb29iOg3IiI20ZiA0@jntp/Data.Media:1>
 It is also the same law as that used by relativistic physicists, but written a little differently, the results being obviously equivalent.
  <http://nemoweb.net/jntp?4VPmaNpqsPlb29iOg3IiI20ZiA0@jntp/Data.Media:2>
 We notice that the speeds do not add up in a Newtonian way, but in a relativistic way, and that nothing, whatever we do, can exceed c.

If we use 'local time' and attatch the axis of time to the zero spot of the coordinate system and the observer, too, than all observers would be at rest (in respect to themselves) and could have all velocities imaginable (if seen from somewhere else).
Therefore: the speed of light in vacuum 'c' is only a 'relative' speedlimit.
It is, for instance, not possible, to push an object faster away than with c.
But that object pushed away with almost c is actually at rest in its own frame of reference.
 From there it could push other objects away with almost c.
These objects pushed away from the latter object have a velocity greater than c, relative to the first observer.

 The question that arises is: "Why did we arrive at this strange equation?"

no idea...
...
TH