Re: Is "malfunctioning" absolute or relative?

On Oct 14, 1:37 pm, "Spaceman" <space...@xxxxxxxxxxxxxxxxxxxxxxxxxx>
wrote:
Uncle Ben wrote:
On Oct 14, 12:32 pm, shuba <tim.sh...@xxxxxxxxxxxxx> wrote:
Uncle Ben wrote:
A lorentz contraction merely shortens the stick.

A Lorentz contraction does nothing *to* a stick. Your wording
indicates that you actually believe that realtivity says we can
change the physical nature of clocks and rods at a distance by
moving back and forth with respect to them and making
measurements.

---Tim Shuba---

A meter stick is 1 meter long at rest.  Speed it up and measure it
again w.r.t. the original frame.  It will be shorter (w.r.t. that
frame).  It's proper length will still be 1 meter.

Actually, the stick will not measure to be shorter just because
it is moving.
That has never been proven ever.
There is no physical reason for the stick to shorten
from motion alone.

That is the clearest way I know how to say it.  Among fellow
scientists, I thought I could say it more colloquially.

It is the clearest bologna spouted that has never been proven
ever.
Not even one single experiment has ever proven such
physically occurs to the stick.- Hide quoted text -

- Show quoted text -

From Tom Roberts collection of evidence for SR:

----
7. Tests of Length Contraction
At this time there are no direct tests of length contraction, as
measuring the length of a moving object to the precision required has
not been feasible. There is, however, a demonstration that it occurs:

A current-carrying wire is observed to be electrically neutral in its
rest frame, and a nearby charged particle at rest in that frame is
unaffected by the current. A nearby charged particle that is moving
parallel to the wire, however, is subject to a magnetic force that is
related to its speed relative to the wire. If one considers the
situation in the rest frame of a charge moving with the drift velocity
of the electrons in the wire, the force is purely electrostatic due to
the different length contractions of the positive and negative charges
in the wire (the former are fixed relative to the wire, while the
latter are mobile with drift velocities of a few mm per second). This
approach gives the correct quantitative value of the magnetic force in
the wire frame. This is discussed in more detail in: Purcel,
Electricity and Magnetism. It is rather remarkable that relativistic
effects for such a tiny velocity explain the enormous magnetic forces
we observe.

------
Uncle Ben
.

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