On Jan 4, 6:50 pm, Tom Roberts wrote in
sci.physics.relativity:
Pentcho Valev wrote:
Honest Roberts, a perpetual motion machine that generates an unlimited
amount of energy out of nothing is a direct corollary of Einstein's
1905 false light postulate.

Dishonest Valev, this is quite wrong. As has been explained to you many times in
many ways. You need to learn what these theories ACTUALLY imply, and not just
make unfounded GUESSES.

Tom Roberts

Honest Roberts, no GUESSES at all, let alone unfounded, on my part in
this case. According to your superior brothers Einsteinians, Divine
Albert's Divine Special Relativity ACTUALLY implies that "the rod will
be trapped in a compressed state inside the barn", and since you are
extremely honest, you should say something about the (ENORMOUS?) force
the compressed rod exerts on the doors of the barn (can in principle
this force be harnessed to produce work for Einsteiniana?):

http://math.ucr.edu/home/baez/physic...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. Now someone takes the pole and tries to run (at nearly the
speed of light) through the barn with the pole horizontal. Special
Relativity (SR) says that a moving object is contracted in the
direction of motion: this is called the Lorentz Contraction. So, if
the pole is set in motion lengthwise, then it will contract in the
reference frame of a stationary observer.....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. The
runner emerges from the far door unscathed.....If the doors are kept
shut the rod will obviously smash into the barn door at one end. If
the door withstands this the leading end of the rod will come to rest
in the frame of reference of the stationary observer. There can be no
such thing as a rigid rod in relativity so the trailing end will not
stop immediately and the rod will be compressed beyond the amount it
was Lorentz contracted. If it does not explode under the strain and it
is sufficiently elastic it will come to rest and start to spring back
to its natural shape but since it is too big for the barn the other
end is now going to crash into the back door and the rod will be
trapped in a compressed state inside the barn."

Pentcho Valev