Re: Michelson-Morley interferometer without a length contraction.

On Jun 10, 2:19�am, Bryan Olson <fakeaddr...@xxxxxxxxxxx> wrote:
PD wrote:
On Jun 8, 7:45 am, rbwinn <rbwi...@xxxxxxxx> wrote:
Bryan Olsen put together this problem: �A traveler is traveling away
from the earth at a velocity v, and another traveler is traveling
toward the earth at velocity v. �The two travelers meet and pass each
other.
Now this is a very good illustration of the problem that Einstein's
theory poses. �Bruce says that because of relativity of simultaneity,
etc., the two travelers will have different times.

"Have different times". That's a charmingly vague phrase.

Yup. Winn cites it to "Bruce", but I cannot find any "Bruce"
in in this thread, nor can I find anyone by any name saying
what Winn attributes to Bruce.

Winn cited the problem statement to me. He chopped and
rephrased into what I'd call nonsense, but I can see how
that much could perhaps be an honest mistake.

Well, I have a problem remembering names. Nonetheless, I am still
interested in the mechanics of this. In Galileo's time, everyone told
time by the rotation of the earth, but everyone, including the leading
scientists of that time, thought that the sun was orbiting the earth.
Galileo believed that the earth was rotating. That is what I also
believe. So with regard to the two travelers, if we specify that they
both travel the same distance relative to the earth, then can we say
that the earth rotates the same number of times in the frame of
reference of the traveler going away from earth as it does in the
frame of reference of the traveler traveling toward earth, or does
mathematics of today show the earth rotating differently in each frame
of reference?
I say it is rotating the same in both frames of reference, which is
what Galileo would also have said, t'=t.
Robert B. Winn
.

Relevant Pages

  • Re: Running outside or treadmill
    ... I can and will still argue that the treadmill and earth are the same. ... If you're going to ignore the math (feel free to bring in math ... you're using the earths frame of reference. ...
    (rec.running)
  • Re: SR theory is simplistic
    ... The Earth has one, the whole solar system has another, the ... So the whole solar system has a "local EM ... frame of reference" but it doesn't include the Earth, ...
    (sci.physics.relativity)
  • Movement in an independent frame of reference, which is made out of light
    ... Earth is not in the center of the movements of heavenly bodies, ... something about a frame of reference. ... a frame of an observer in equal rights, ...
    (sci.physics)
  • Re: SR time dilation on remote objects ?
    ... Perhaps someone would say they move farther apart, ... >different frames of reference. ... >in a frame of reference centered on the earth, ...
    (sci.astro)
  • Re: What constitutes a valid THEORY of life?]]
    ... without a frame of reference which can only be created by at least ... Meteorology is supposedly the study of the weather. ... Geology is the study of the earth. ...
    (sci.bio.evolution)