harald
Posts:
73
Registered:
1/19/10


Re: Preferred Frame Theory indistinguishable from SR
Posted:
Jul 2, 2010 4:45 AM


On Jul 2, 2:49 am, colp <c...@solder.ath.cx> wrote: > On Jul 1, 9:33 pm, harald <h...@swissonline.ch> wrote: > > > > > On Jul 1, 12:47 am, colp <c...@solder.ath.cx> wrote: > > > > On Jul 1, 4:30 am, PD <thedraperfam...@gmail.com> wrote: > > > [..] > > > > <quote> > > > > > > At best, all you've done is show the > > > > > fallacies or assumptions inherent in COLP's Oversimplified Relativity. > > > > What specific fallacies or assumptions? Quotes, please. > > > > Sure. You've used the statement from COLP's Oversimplified Relativity > > > that moving clocks run slow (which you've said is true even for blue > > > shifted clocks), and you've used the statement that COLP's > > > Oversimplified Relativity makes no provision whatsoever for a > > > compression of time for a clock turning around. This immediately leads > > > to several paradoxes, and this is ample reason to chuck Colp's > > > Oversimplified Relativity. > > > </quote> > > > > The statement that "moving clocks run slow" isn't an > > > oversimplification, it is directly inferred from Einstein's > > > "Electrodynamics of Moving Bodies". > > > > Also, Einstein's paper makes no provision whatsoever for the > > > compression of time for a clock turning around. > > > Einstein's paper explains that clock rate (as measured with an > > inertial coordinate system) must be the same at the same speed, > > independent of the direction of motion of the clock. Is that what > > you mean? > > Yes, in part. According to SR a moving clock will appear to run slower > both when it is moving away and when it is approaching, since velocity > is squared in the transform.
That is only a 1D mathematical argument. Einstein used perhaps more mathematical shortcuts than Lorentz, but just as Lorentz his arguments were foremost *physical*. As Einstein put it:
"The laws by which the *states of physical systems undergo change* are not affected, whether these changes of state be referred to the one or the other of two systems of coordinates in uniform translatory motion." (emphasis mine).
He concluded that, according to measurements with an inertial reference system, a relative to that system moving clock will run slow by the Lorentz factor. Obviously that conclusion cannot depend on direction.
> > > The paradoxes which arise from this are ample reason to chuck > > > Einstein's theory. > > > What paradoxes? > > The paradox inherent in Electrodynamics of Moving Bodies, and the > paradoxes arising from it, namely the twin paradox and the triplet > paradox. > > http://groups.google.com/group/sci.physics.relativity/browse_thread/t...
[link was truncated]
Those are paradoxes of GRT, see my parallel comment.
> > Different people perceive different paradoxes, but > > they are all easy to explain; and probably the thinking error that you > > fell for was already explained to you, but you either overlooked or > > misunderstood it. > > No, that is not the case.
How do you know what you can not know?!
Harald

