Re: michelson morley experiment

vern@xxxxxxxxxxxx wrote:

[snip]

We are evidently talking past each other. This has nothing to do with
SRT and the frame in the experiment is the not the ECI frame, it is in
the frame of the Earth's surface. The comment I made in the previous
post was only an analogy to HK and GPS and aether theories which use an
ECI frame. That was only relative to a positing a reason why
terrestial light does not have aberration. Do you accept that
terrestial light does not have aberration (in the reference frame of
the Earth's surface), and if so, why do you believe there is no
aberration, when all light should exibit aberration.

Sorry to have to respond to my own post, but obviously the above
paragraph of Message No. 36 is in error as I was in a hurry and I have
taken some time to try to think the experiment through from the
standpoint of reference frames. The experiment is based on the
assumption that when a laser pulse is in the air between the source and
target, the target continues to move along with the Earth in the
essentially linear motion of the Solar System towards the constellation
Leo. The target will have moved about 4 inches before the pulse hits
it. So the reference frame for the whole experiment is the CMBR frame.
Does the target move in the reference frame of the Earth's surface in
the time the pulse is in the air? I guess the answer is "no" because
both the source and target are stationary during the length of time
starting when the pulse is fired from the source and ending when the
pulse hits the target in the reference frame of the Earth's surface.
But that can't be used as a reason that there is no aberration of
terrestial light, since in the reference frame of the CMBR, the Earth
is moving and that resulting aberration of terrestial light should be
evident in any experiment using light on the surface of the Earth.

Vern

.

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