Re: Are *observed* SR effects real?

On Jul 26, 8:02 am, mluttg...@xxxxxxxxxx wrote:
On Jul 25, 10:38 pm, PD <TheDraperFam...@xxxxxxxxx> wrote:

On Jul 25, 8:00 am, mluttg...@xxxxxxxxxx wrote:

I retain:

- If you stick to just the suppositions and the logic and never check
in
with reality, then of course it's going to seem just as easy to make
the opposite suppositions. But Nature settles the matter
*definitively*, in experiments designed to check which supposition is
actually right -- this one or that one.

- The strength of SR is not based on the plausibility of its
suppositions and the coherence of arguments that follow, but also on
verification with EXPERIMENT.

So, the obvious questions are:

How did Nature 'decided' that the length of the train is 600 m
in Stan's frame, and 800 m in Tom's frame, and not the
opposite?
(Such 'decision' being compatible with other experiments).

Is it because the train is moving relative to the Earth, and not
the opposite?

Doesn't such experimental verification falsify SR?

Not at all.

SR explicitly says that the laws of nature work out to demand this:
The physical length of an object is always largest in the frame in
which it is at rest.

This is *precisely* the result that Stan and Tom reproduce in their
measurements, and the result that is confirmed in literally scores of
experiments whose methods and results are recorded in the literature.

In the present case, the longest physical length of the train is the
one measured by Tom, in whose frame the train is at rest.

PD


.

Relevant Pages

  • Re: OBarr: What is the real velocity of light in Frame A?
    ... light in Frame A? ... exactly how fast light was going relative to this train. ... We make a measurement of what nature does, ...
    (sci.physics.relativity)
  • Re: Are *observed* SR effects real?
    ... the opposite suppositions. ... suppositions and the coherence of arguments that follow, ... in Stan's frame, and 800 m in Tom's frame, and not the ... At this time there are no direct tests of length contraction, ...
    (sci.physics.relativity)
  • Re: Are *observed* SR effects real?
    ... the opposite suppositions. ... suppositions and the coherence of arguments that follow, ... in Stan's frame, and 800 m in Tom's frame, and not the ... At this time there are no direct tests of length contraction, ...
    (sci.physics.relativity)
  • Re: Are *observed* SR effects real?
    ... the opposite suppositions. ... But Nature settles the matter ... suppositions and the coherence of arguments that follow, ... in Stan's frame, and 800 m in Tom's frame, and not the ...
    (sci.physics.relativity)
  • Re: Are *observed* SR effects real?
    ... the opposite suppositions. ... suppositions and the coherence of arguments that follow, ... in Stan's frame, and 800 m in Tom's frame, and not the ... At this time there are no direct tests of length contraction, ...
    (sci.physics.relativity)
Loading