From: nicolaas.vroom@pandora.be   
      
   On Monday, 8 October 2018 19:37:16 UTC+2, Phillip Helbig (undress to reply)    
   wrote:   
   > In article ,   
   > Nicolaas Vroom  wrote:   
   >   
   > > My whole point is that when a clock (Using lightsignals) undergoes   
   > > acceleration (its speeds increases) its behaviour changes.   
   > > These changes are different, and are a function, of how the clock is build.   
   >   
   > If I enclose a spring-driven pocket watch, an atomic clock, a   
   > quartz-battery clock, a grandfather clock and so on in a box and   
   > accelerate it, the decelerate it and examine them (or accelerate myself   
   > to catch up to it and enter it while moving), do you expect them to read   
   > differently, assuming that they were synchronized at the beginning (and,   
   > as per a Gedankenexperiment, all completely accurate when at rest)?   
      
   The only way to find out is by performing an experiment.   
   The results of my simulations show that not all clocks behave the same.   
      
   > One could argue that a grandfather clock is driven by gravity and thus,   
   > due to the equivalence principle, would be affected by acceleration,   
      
   Also this should part the experiment. As you expect such a clock   
   will read differently and if that is the case you find the reason   
   by investigation how this clock is build and operates.   
      
   > (but what about the other three?) What about two partially-silvered   
   > mirrors with a light pulse bouncing between them which beeps when a   
   > photomultiplier behind one of the mirrors is activated?   
      
   This behaviour differences when you put the clock in a linear accelerator   
   depending about the direction of the bouncing light pulse versus the direction   
   of movement.   
   This behaviour is not the same if the direction of the bouncing light pulse   
   is the-same as the direction of movement versus if the two directions are   
   different i.e. perpendicular. In the last case the behaviour is described   
   by the Lotentz transformation.   
   If you put such a clock in an centrifuge you have a high chance that   
   the clock will not operate. This is specific described as this link:   
   http://users.telenet.be/nicvroom/Clock%20and%20Centrifuge%20part2.htm   
      
   > but what about the other two?   
      
   General speaking you have to study how they both operates.   
   You can not do that by performing a Gedankenexperiment.   
   Studying the reply by Roland Franzius you can see how complicated this is.   
      
   Nicolaas Vroom   
      
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