Re: michelson morley experiment


<vern@xxxxxxxxxxxx> wrote in message
news:1145449523.905722.244700@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Harry wrote:
<vern@xxxxxxxxxxxx> wrote in message

[snip]

The posts above were not about the speed of light or about rockets.
The scenario was a laser experiment on the surface of the Earth in
which the laser is positioned perpendicular to the essentially linear
movement of the solar system through the galaxy at around 40 degrees
latitude and approximately 300 feet between source and target.

You may here above replace "rocket" by "Earth", that doesn't matter for
SRT.
What matters is that one may choose (pretend to be) any approx. inertial
frame (solar, CMBR) as "stationary" frame. Note that for MMX the Earth's
surface isn't approximately an inertial frame, except for very short
time
intervals.

A laser
pulse is sent every hour for 24 hours and the strikes marked on the
target. Since the target moves approximately four inches during the
transit time of the laser beam after the pulse is fired and before it
strikes the target, the plot of the strikes on the target over the 24
hour period should be an ellipse with the center representing where
the
laser is actually aimed. The result of the experiment is that the
strikes are always in the same place instead producing the elliptical
pattern.

I've worked out such things in the past, and it always worked out
perfectly.
Here you give insufficient detail, thus I don't know what you overlook -
but
probably you overlooked the Lorentz contraction.

Perhaps I should not have posted the subject matter is this thread as
the experiment I am discussing is a simple path of light experiment
that does not involve MMX concepts, SRT, length contraction,
non-inertial frames or choice of frames.

If you think about it, that's impossible: any path is relative to some
material reference system, even if by extension.

However, I was responding to
Tom's statements in Message No. 18 which were applicable to path of
light issues, so it seemed appropriate. The issue here is whether
there is aberration of terrestial light. The experiment I outlined
indicates that there is not, yet that contradicts accepted theory of
light (there is no reason that all light is not aberrated). I have
asked Tom for his explanation of why terrestial light is not aberrated
in Message No. 38. What is yours?

I kind of commented on that in message 31; and on earth there is no speed
difference.

If you need more details of the
experiments, a link is posted in Message No. 21 or 23.

Reading that, I could not spot what you consider to be a problem; however
the following remark of you is revealing:

"Using terrestial light sources, the experiment should have revealed the
full effect of secular aberration, but instead it is consistent with a
model of light which is a wave in an aether where the aether is like a
bubble around the Earth and the Earth's rotation on its axis does not
affect the aether. This corresponds with explanations for H-K type
experiments and GPS, where an Earth-axis-centered frame is used for
measurements. "

That's commonly called ECI frame; as it happens, SRT is compatible with
choosing that frame; it is generally used.

Harald


.

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