In fact, the questions aren't nonsense; they just need to be carefully
posed to get sensible answers out of them in a universe where SR applies.
There is a "distinguished frame" for the universe: The rest frame of
the three degree background radiation. There just is one inertial frame
of reference in which that's isotropic -- in all other frames it's red
shifted in one direction, blue shifted in the other. That frame is
(presumably) the frame which is at rest relative to the primordial fireball.
Furthermore, if the universe is a compact manifold and "folds back on
itself" -- such as the surface of a sphere -- then there is an intrinsic
"rest frame" as well, which can be found by sending pulses of light
simultaneously in opposite directions. If the universe is closed, and
the light eventually comes back to the emitter, then there is just one
inertial frame in which the two pulses will arrive back at the emitter
simultaneously.
More obscurely, if the universe is closed, then the frame just mentioned
is the one in which the Sagnac effect is null. All other frames are (in
effect) /rotating/ (going 'round and 'round the universe).
On 11-09-23 01:53 PM, Mauro Lacy wrote:
Vorts,
So, when I first heard about zero point energy years back, I assumed
it was something I had already theorized myself when struggling with
the concepts of relativity (which still bugs me, for the reasons I'm
about to list) as I was mentally using the term Zero Point already.
Imagine my dissapointment...
Anyways, I'm a biologist and chemist more than a physicist, so PLEASE,
correct me where I am wrong. As the velocity of an object increases,
its apparent mass increases, and time slows, for that object, yes?
And the time dilation and mass increase is "relative" to the velocity
based upon the observer being a zero point. For 3 objects moving in a
straight line in the same direction, one at .1 c, one at .2 c, one at
.8 c, time dilation will be different for the .8 c object when vied by
the other two objects, yes? because its traveling at .7 c compared to
one, and .6 c compared to the other, correct?
If that is the case, is there a zero point? is there an intrinsic
velocity that pretty much EVERYTHING in the galaxy/universe shares?
If so, what happens to mass and the flow of time as you approach that
zero point?
The "velocity of the vaccum". Does the vacuum moves? At which speed? And
in relation to what? the immobile vacuum?
Einstein's SR disregards all those questions as nonsense, or better said,
"metaphysics". Speeds are only to be measured between material bodies, and
not correlated against any absolute reference, because that absolute
reference cannot be measured or determined.
Does something that cannot be measured or determined exists? In which
sense, or "where", it exists?
