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From: Thomas Heger <ttt_heg@web.de>
Newsgroups: sci.physics.relativity
Subject: =?UTF-8?Q?Re=3A_I_dare_to_relativists_to_explain_local_time=3A_t-vx?=
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Date: Tue, 8 Oct 2024 09:28:20 +0200
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Am Sonntag000006, 06.10.2024 um 10:43 schrieb Mikko:
> On 2024-10-03 00:55:55 +0000, rhertz said:
> 
>> Originally, local time was FOUND by Voigt in 1887. Here is the link:
>>
>> https://en.wikisource.org/wiki/Translation:On_the_Principle_of_Doppler
>>
>> Go to equations 8 and 10.
>>
>> Lorentz "borrowed" Voigt's local time, without crediting him.
> 
> Lirentz' local time is not the same as Voigt's.
> 
> Local time is the isometric coordinate time of an isometric
> coordinate system. An important aspect to understand about
> it is that it is not local. It is valid for the region where
> the coordinate system is valid. At the time Voigt, Larmor and
> Lorentz presented their transformations it was assumed that
> the entire Universe could be covered with one such system.
> 
What is more interesting than Hendrik Lorentz, that is Einstein's 'On 
the electrodynamics of moving bodies'.

I have found similarities to Heinrich Herth and his book 'Über die 
elektrische Kraft'.

But Voigt's text was seemingly a source, too.

Have not checked that yet, but the equations look somehow similar.

Also form, style, variable names and overall structure look quite 
familiar for me.

TH