🚀 go-pugleaf

On Feb 18, 7:54 am, Tom Roberts <tjroberts...@sbcglobal.net> wrote in
sci.physics.relativity:
> Aaron Arcsec wrote:
> > On Mon, 16 Feb 2009 14:31:38 -0600,
> >TomRoberts<tjroberts...@sbcglobal.net> wrote:
> >> The two-way speed of light is accurately measured to be
> >> isotropic in each and every locally-inertial frame in which a laboratory
> >> on earth is ever at rest. [...]
>
> > Actually, the round-trip measurement (MMx) was *not* an
> > accurate measurement.
>
> Sure it was -- they measured round-trip isotropy with an errorbar of
> about 8 km/s. For its time that was most excellent.
>
> > Since no one can show the null result even on paper without
> > also showing a physical length change, such a change did in
> > fact take place.
>
> Only in your mind. SR predicts no such "physical length change".

Honest Roberts you have been silent about Divine Albert's Divine
Length Contraction for some time but now you obviously find it
suitable to start lying again. If, according to special relativity,
there were no "physical length change", then, Honest Roberts, your
brothers would not be able to prove that the long train is short (if
trapped inside a short tunnel), the 80m long pole is 40m long (if
trapped inside a 40m long barn), the bug is both dead and alive etc:

http://www.youtube.com/watch?v=VSRIyDfo_mY&mode=related&search=

http://www.math.ucr.edu/home/baez/physics/Relativity/SR/barn_pole.html
"These are the props. You own a barn, 40m long, with automatic doors
at either end, that can be opened and closed simultaneously by a
switch. You also have a pole, 80m long, which of course won't fit in
the barn....So, as the pole passes through the barn, there is an
instant when it is completely within the barn. At that instant, you
close both doors simultaneously, with your switch. Of course, you open
them again pretty quickly, but at least momentarily you had the
contracted pole shut up in your barn."

http://hyperphysics.phy-astr.gsu.edu/Hbase/Relativ/bugrivet.html

Pentcho Valev
pvalev@yahoo.com