Re: TIME DILATION



In sci.physics.relativity, Sorcerer
<Headmaster@xxxxxxxxxxxxxxxxxx>
wrote
on Sat, 12 Aug 2006 17:26:23 GMT
<3boDg.82204$9d4.59529@xxxxxxxxxxxxxxxxxxxxxxxxx>:

"The Ghost In The Machine" <ewill@xxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1v91r3-nln.ln1@xxxxxxxxxxxxxxxxxxxxxxxxxx
| In sci.physics.relativity, Sorcerer
| <Headmaster@xxxxxxxxxxxxxxxxxx>
| wrote
| on Sat, 12 Aug 2006 14:23:22 GMT
| <uvlDg.86109$F8.46557@xxxxxxxxxxxxxxxxxxxxxxxxx>:
| >
| > "Dirk Van de moortel" <dirkvandemoortel@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
wrote
| > in message news:f0lDg.17859$Nu3.385127@xxxxxxxxxxxxxxxxxxxxxxxx
| >
| >
| > [anip]
| > Have you found the difference between xi and x' yet, local village
idiot?
| > Androcles
| >
|
| x' = phi(-v)*beta(-v)*(xi + v*tau)
| where beta(v) = 1/sqrt(1-v^2/c^2)
|
| Since phi(-v) = 1,| x' = beta(-v)*(xi + v*tau) = (xi +
v*tau)/sqrt(1-v^2/c^2)
|
| therefore
| xi - x' = xi - (xi + v*tau)/sqrt(1-v^2/c^2) .
|
| http://www.fourmilab.ch/etexts/einstein/specrel/www/
|
| Since tau is a free variable no conclusions can be drawn regarding
| whether xi < x', xi > x', or xi = x'.

Ahem....

"If we place x'=x-vt, it is clear that a point at rest in the system k must
have a system of values x', y, z, independent of time. "
http://www.fourmilab.ch/etexts/einstein/specrel/www/

NOTE... "IT IS CLEAR". Einstein said so and unless you think the length
of a train will change overnight, is is very clear.


Yes, it is clear that Einstein is making an invalid
assumption. And train lengths *do* change overnight, as
cars are coupled and decoupled and placed on sidings or
added to the train; there's also some give in the couplings
as trains accelerate, simply from metal strain, and also
by design. This makes length experiments very tricky,
as Miller found out in his determinations that we are
moving generally southward in the celestial sphere.

Not that Miller used trains, but he *did* have problems
with length fluctuation -- this time from temperature.


| Note that there is a minor error in the paper,

Yes, there is a MAJOR error on the paper. Several, in fact, the first being
the so-called light postulate for which there never was any physical
foundation,

I was referring to x'. However, you are correct; there is a major error
in the paper that requires lightspeed to be zero.

Not 0/0. Not a constant. Not a variable. Zero. This is near the
bottom of section 1 (corrected as per requirements):

In agreement with experience we further assume the quantity

(AB+BA)/(t'_A-t_A) = c

to be a universal constant--the velocity of light in empty space.

since after all the light is being bounced back from a mirror.

This value is *zero*, since AB+BA = 0 as a vector and t'_A-t_A is
nonzero. 0/t = 0 for any t > 0. (For any t < 0 as well, for
that matter.) This also means c is a *vector*, and is identically zero.

Therefore, c = (0,0,0), |c| = 0, and the entire rest of the
paper falls apart. That SR and GR have been confirmed by
many experiments (so the scientists say) leads one to many
interesting paths, some of them suggesting the scientists
are corrupt graft-seeking bloodsucking leeches on society;
others simply referring that the AB+BA logic interpretation
is flat-out wrong.

Of course, most now simply take the simpler (to them) path:
that 2AB/(t'_A-t_A) = c was correct in the first place
and that "Lichtgeschwindigkeit", the original term used,
was intended to mean speed, despite its ambiguity in German.

the next being the time postulate and the stupid assumption that the speed
of light is measured from A to A in time t'A-tA instead of from A to B in
time t, from which comes "the velocity of light in our theory plays the
part,
physically, of an infinitely great velocity."
Einstein plays the part of con-artist gigolo and you play the part of a
Neanderthal troglodyte pretending to be a ghost. I play the part
of a slave and Dork plays the part of himself, he can't even spell his own
name.

You are not a slave. You are a superintelligent pandimensional being.
Don't play stupid.




| since x' is defined twice
| in section 3; an alternate answer to your question is therefore
|
I didn't find that, you are seeing double.

And you are not seeing.

Near the top of Section 3:

If we place x'=x-vt, it is clear that a point at rest in the system
k must have a system of values x', y, z, independent of time. We
first define tau as a function of x', y, z, and t. To do this we
have to express in equations that $\tau$ is nothing else than the
summary of the data of clocks at rest in system k, which have been
synchronized according to the rule given in section 1.

Near the bottom:

For this purpose we introduce a third system of co-ordinates K', which relatively to the system k is in a state of parallel
translatory motion parallel to the axis of Xi (footnote 1) such that the
origin of co-ordinates of system K, moves with velocity -v
on the axis of Xi. At the time t=0 let all three origins
coincide, and when t=x=y=z=0 let the time t' of the system K
be zero. We call the co-ordinates, measured in the system K,
x', y', z', and by a twofold application of our equations of
transformation we obtain [...]

Clearly there are two definitions of x', one simply equating x'=x-vt,
the other defining x' as the first coordinate in a third 4-space, moving
in the direction opposite to k.



| xi - (x - vt) = xi - x + vt
|
| and we still can draw no conclusions about the relative ordering of x'
| and xi.
|
| Does this answer your question? :-)

My question was to Dork. He thinks x' = xi, but one would expect that
from a moron.

It would appear the second definition of x' = x, not xi. Not that
it matters; beta(v) = 1/sqrt(1-v^2/c^2) is not a function since
vector c is zero (c^2 = c dot c is a reasonable interpretation).


It is quite clear that
xi = beta(x-vt) = beta.x'
from http://www.fourmilab.ch/etexts/einstein/specrel/www/figures/img53.gif
which puts elliptical wheels on Rockets:
http://www.androcles01.pwp.blueyonder.co.uk/Rocket/LTstretch.gif

Androcles.




--
#191, ewill3@xxxxxxxxxxxxx
Windows Vista. Because it's time to refresh your hardware. Trust us.
.



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