Why Einstein Proposed That Speed Of Light Is Invariable....

On May 13, 4:58*pm, Tom Roberts wrote in
sci.physics.relativity:
Mike wrote:
Tell the OP also that the principle of relativity combined with the
constancy of the speed of light result in paradoxical conclusions like
the bug-rivet paradox, the barn-pole paradox, the twin paradox etc.

Hmmm. Be sure also to mention that the use of the word "paradox" here
means "seeming contradiction that turns out to NOT be a contradiction
upon analysis".

Of course Roberts Roberts. These are "paradoxes" only in Einstein
zombie world. In any other world they would not be contradictions;
they would be just "idiocies". Only in Einstein zombie world
"scientists" can trap a long train inside a short tunnel:

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

and also a 80m long pole inside a 40m long barn:

http://www.math.ucr.edu/home/baez/ph...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."

These are cases where SR is fully consistent, but does
not conform to common sense -- that's OK, because common sense was not
developed with any phenomena involving speeds approaching c. The moral
is to NOT expect common sense to apply in regimes far removed from where
it was developed...

http://www.online-literature.com/orwell/1984/ George Orwell "1984":
"In the end the Party would announce that two and two made five, and
you would have to believe it. It was inevitable that they should make
that claim sooner or later: the logic of their position demanded it.
Not merely the validity of experience, but the very existence of
external reality, was tacitly denied by their philosophy. The heresy
of heresies was common sense. And what was terrifying was not that
they would kill you for thinking otherwise, but that they might be
right. For, after all, how do we know that two and two make four? Or
that the force of gravity works? Or that the past is unchangeable? If
both the past and the external world exist only in the mind, and if
the mind itself is controllable what then?"


Pentcho Valev