Sorry to take so long to get back on this. I think we have a
mis-communication here. Probably my fault, although the part you snipped out
about a blue shift / red shift in the black body background radiation along
the axis of 'real' motion is clarifying.
For the purpose of communication consider a set A consisting of a single
'Newtonian' coordinate system: for slow moving objects Newton's principles
hold. Now consider this coordinate system plus all the others where the
origin is displaced; the x, y, and z axes may be rotated; and the metric-the
value of '1'-may be different; BUT none of these differences is changing
over time. They are static, or time-independent differences. Call this
infinite set of coordinate systems, whose origins are scattered over the
cosmos, B. Consider all the members of B plus all the coordinate systems
that move with respect to the members of B but do so without acceleration or
spin to be members of the set C. Finally, for completeness, consider all the
coordinate systems in C plus all the coordinate systems that accelerate or
spin with respect to members of C to be members of the set D.
The principle of relativity would seem to say that no member of C, the
'Newtonian' subset of D, is privileged with respect to any other member of
C. But the Big Bang theory seems to say that there is a privileged subset of
C, a B-type subset, that is not moving with respect to the Big Bang. These
are the ones characterized by a lack of blue shift / red shift along an axis
of motion with respect to the background radiation. This isn't just
hypothetical. I remember reading some years ago that such a 'dipole moment'
in the background radiation was actually found, showing that the solar
system was moving in the general direction of Virgo (if I recall correctly)
with respect to the background radiation.
My question is this: Does the apparent existence of the privileged subset B
have physical consequences other than the dipole moment in the black body
From: email@example.com [mailto:firstname.lastname@example.org] On
Behalf Of John Clark
Sent: Sunday, June 04, 2000 12:35 AM
Subject: Re: FTL transmission?
Don Klemencic <email@example.com> Wrote:
>Doesn't the center-of-mass of the big bang, i.e., the
> center of mass of the cosmos, define a privileged frame of reference?
Yes but every point is the center of mass of the cosmos. It's not like a
regular explosion, at the Big Bang things did not explode outward into
empty space, space itself started to expand explosively.
John K Clark firstname.lastname@example.org
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