Re: Is time dilation real?

"Spaceman" <Realspace@xxxxxxxxxxx> wrote in message
news:nLWdnZSIJ_0ktkXenZ2dnUVZ_sGdnZ2d@xxxxxxxxxxxxxx
>
> "Greg Neill" <gneillREM@xxxxxxxxxxxxxxxxxx> wrote in message
> news:5zVBf.23397$ve.388893@xxxxxxxxxxxxxxxxxxxxxxxx
> | If you have one clock and three observers in different
> | frames of reference, all will observe the clock to
> | run at different rates. What fix do you propose
> | to perform on the clock to correct this?
>
> Observations are subject to problems with distance.
> clocks do not need to be fixed to conform to such problems
> they need to be fixed to not vary rate so that when a clock
> that used to run the same as another clock, will show the same time
> no matter where it goes and also, show the same time when it returns.
>
> What the observers see while the clock is n motion is irrelevant.
> It is a trick of lightspeed and only fools would think clocks care
> about what light that travels to an observer is doing

How is the situation you describe any different from
having the broken clocks that you're so upset about?
If a clock is not good under any or all conditions,
what good is it? This is not a good argument, James.

Observations of clock rate are most certainly not
subject to problems with distance. The clock can
broadcast its beat rate in a signal that is received
with no ambiguity. The time between ticks as compared
to a local clock is unmistakeable.

The fact that all properly operating clocks conform to
the measurement prediction of relativity under all
circumstance, including all the hand-wavy ones you
mention above, should make you happy; We don't have
to repeatedly fix every clock in the universe before
reading it, we just have to apply relativity theory to
the measurements. Saves a lot of service calls.


.

Relevant Pages

  • Re: Hafele & Keating, Einstein, Dingle,Cocke, and Scott Murray
    ... > observers which are not truly inertial. ... > sun just as the observer at the equator is rotating about the pole. ... >>Acceleration of a clock is not supposed to affect the rate of that clock. ... > mass against the pull of gravity you get gravitational potential energy. ...
    (sci.physics.relativity)
  • time coordinates in general relativity and cosmology (was: Re: Constraints on spatial flatness.)
    ... You then only need one clock, the observer's, to describe the dynamism ... of the observable universe, relative to that observer. ... | clocks we have to start with are at the center of the earth, ... observers A, B, and C, all in different places in a curved spacetime. ...
    (sci.physics.research)
  • Re: Seriously, What Can We Do About It?
    ... Time dilation ... well before anyone knew what kind of clock would be used in the test. ... of all observers therefore remain as a universal common ... of and without any consideration of concepts like 'co-existence' ...
    (sci.physics.relativity)
  • Re: Download a new book on quantum mechanics and relativity.
    ... > an uniform motion in a straight line and a straight line is defined ... When Galileo discussed inertial observers he wrote about a person ... > interactions propagate instantaneously in your theory, the photon ... I apply a ruler to measure distance and I use a clock to measure ...
    (sci.physics.relativity)
  • Re: Download a new book on quantum mechanics and relativity.
    ... > an uniform motion in a straight line and a straight line is defined ... When Galileo discussed inertial observers he wrote about a person ... > interactions propagate instantaneously in your theory, the photon ... I apply a ruler to measure distance and I use a clock to measure ...
    (sci.physics)