From: ttt_heg@web.de   
      
   Am Samstag000004, 04.10.2025 um 23:13 schrieb Maciej Woźniak:   
   > On 10/4/2025 7:52 PM, Paul B. Andersen wrote:   
   >> Den 04.10.2025 09:21, skrev Thomas Heger:   
   >>> Am Freitag000003, 03.10.2025 um 20:12 schrieb Paul B. Andersen:   
   >>>> Den 03.10.2025 10:18, skrev Thomas Heger:   
   >>>>> Am Donnerstag000002, 02.10.2025 um 14:57 schrieb Paul B. Andersen:   
   >>>>>>   
   >>>>>> Einstein's _only_ point was to define simultaneity,   
   >>>>>> it was not to show how you can make two asynchronous clocks   
   >>>>>> synchronous.   
   >>>>>   
   >>>>>   
   >>>>> No, because Einstein wrote about a method, which included clocks.   
   >>>>>   
   >>>>> But clocks are technical devices and are subject to human   
   >>>>> interactions.   
   >>>>>   
   >>>>> Time in contrast is not supposed to be affected by humans or clocks.   
   >>>>>   
   >>>>> So, Einstein's definition does not define time, but describes a   
   >>>>> technical method, which ultimatively synchronizes remote clocks.   
   >>>>>   
   >>>>> (And as an enignieer I know a few things about technical procedures.)   
   >>>>>   
   >>>>> If Einstein actually wanted to define simultineity he should have   
   >>>>> use a hypothetical signal, which connects without delay.   
   >>>>>   
   >>>>> That such a signal does not exist in reality does not hinder to   
   >>>>> define it and use it in a definition.   
   >>>>>   
   >>>>> The discrepancy to the real world  and the real signal by light or   
   >>>>> radio waves could be put in 'by hand' and by calculating the delay   
   >>>>> of light to travgel between two points and adding the result to the   
   >>>>> timing signals.   
   >>>>   
   >>>>   
   >>>> This is irrelevant to Einstein's definition of simultaneity-   
   >>>>   
   >>>>   
   >>>> We are talking about: § 1. Definition of Simultaneity   
   >>>>   
   >>>> It is an indisputable fact that Einstein in  §1 of his paper   
   >>>> defines simultaneity, and does not explain how to synchronise   
   >>>> asynchronous clocks.   
   >>>>   
   >>>   
   >>> Einstein wrote somehow 'time is what clocks say'.   
   >>   
   >> Indeed.   
   >> In physics 'time' must be measurable to have any meaning.   
   >> The instrument used for measuring 'time' is called a 'clock'.   
   >   
   > Physics never understood what a clock is   
   > and was always mistaking it with a   
   > stopwatch.   
   >   
      
   The word 'clock' wasn't used for stopwatches that often.   
      
   It was used mainly for huge mechanical devices, that often had a   
   pendulum and played a little tune every hour.   
      
   Later ships used smaller devices called 'chronometer'.   
      
   Even later came little disk shaped things, which you could put into your   
   pocket.   
      
   All of these are pretty old scholl, since today everybody uses a   
   smartphone for everything.   
      
   ...   
      
   TH   
      
   --- SoupGate-Win32 v1.05   
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