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From: Python <python@invalid.org>
Newsgroups: sci.physics.relativity
Subject: Re: [SR and synchronization] Cognitive Dissonances and Mental
 Blockage
Date: Sun, 25 Aug 2024 11:10:16 +0200
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Le 25/08/2024 à 11:03, Mikko a écrit :
> On 2024-08-25 07:01:16 +0000, Thomas Heger said:
> 
>> Am Samstag000024, 24.08.2024 um 10:11 schrieb Mikko:
>>> On 2024-08-24 07:02:23 +0000, Thomas Heger said:
>>>
>>>> Am Freitag000023, 23.08.2024 um 13:58 schrieb Mikko:
>>>> ...
>>>>>> In Einstein's case, this was often necessary, because Einstein 
>>>>>> used very strange naming conventions.
>>>>>>
>>>>>> A very simple example would be the symbols for the four used 
>>>>>> coordinate systems: K, k, K' and k'.
>>>>>
>>>>> These symbols are easy to remember: all are variants of K, which is
>>>>> the first letter of Koordinaten-system. The only difference is that
>>>>> K denotes the coordinate system K, k denotes the coordinate system k,
>>>>> K' denotes the coordinate syste K', and k' denotes the coordinate
>>>>> system k'. All coordinate systems are intertial, and much else is
>>>>> not said about them so needn'd be remembered.
>>>>>
>>>>
>>>> Well, but no.
>>>>
>>>> The symbols K, k, K' and k' use two variations:
>>>> a) small and large letters
>>>> b) primed and not primed letters
>>>>
>>>> Now 'small' means 'moving' (of k along the x-axis of K)
>>>
>>> Of those that are used at the same time, everyone is moving relative
>>> to every other.
>>>
>>>> But 'primed' means what????
>>>
>>> Nothing by itself. It is used to create a symbol that is different
>>> but not too different from an earlier symbol.
>>>
>> Yes, but I have critized this, because any symbol used should have a 
>> meaning.
> 
> The meaning "yet another coordinate system" is a meaning.

Thomas argument is of the kind: "Well this recipe show how to cook one
apple pie but I have a problem now: I want to cook two pies.".