Re: [SR and synchronization] Cognitive Dissonances and Mental Blockage

Liste des GroupesRevenir à p relativity 
Sujet : Re: [SR and synchronization] Cognitive Dissonances and Mental Blockage
De : ttt_heg (at) *nospam* web.de (Thomas Heger)
Groupes : sci.physics.relativity
Date : 27. Aug 2024, 06:41:30
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Message-ID : <lj5778Fe0luU4@mid.individual.net>
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Am Montag000026, 26.08.2024 um 12:14 schrieb Richard Hachel:
Le 26/08/2024 à 07:47, Thomas Heger a écrit :
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To illustrate the problem of Einstein's naming conventions, I write now, what these names actually meant:
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K is a cartesian coordinate system, assumed to be at rest, non-rotating and unaccelerated in an Euclidean space, which is assumed to 'flat' and force free.
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The orientations of the axes (of x, y and z) were not mentioned, but I use this setting:
x points right
y points 'inside' (if x and z define a two-dimensional plane, like the one you draw on)
z points up (because z is usually used for hight)
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k is an equally normed coordinate system, which moves with velocity v along the x-axis of K 'to the right'. The coordinates had Greek letters as names (xsi, eta, zeta).
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K' is a coordinate system with the same features as K, but which moves from the center of k along the xsi-axis of k 'to the left' with velocity -v
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k' is the same, but moving to the left with velocity -w along the xsi-axis of k. (the difference between K' and k' is a diffent velocity w in case of k').
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But how could possibly anybody interpret the names K, k, K' and k' in this way?
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It required careful investigations to find out, what was actually meant.
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And the used names themselves gave absolutely no hints, about how these symbols shall be interpreted.
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In short: it is a very obscure system to name things!
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Usually you need to find a way, by which things get names in a consistent manner, which the reader could eventually remember
 What you say is very interesting.
 
Well, thanks.
But this isn't such a nice story at all.
In a way this problem with naming coordinate systems was just the 'tip of the iceberg'.
But the reuse of symbols or -for instance- to define something one way, but not sticking to this definition, are also observable.
Especially annoying were the reuse of the letter A and the symbol x'.
There were actually eight different uses for the tall latin 'A' in this paper.
But how could any reader keep track of the intended meaning in a certain context?
TH

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