Re: Twin Paradox Question

Sue... wrote:

[snip]

> Clocks are not predictably affected by motion. Their appearance
> to a remote observer is affected.

Correct, and (as I think you agree) that appearance is as predicted
by SR. So far so good. However, SR's predictions have further
consequences and it is those consequences that the twin paradox
focuses upon. And wrt which you are IMHO confused. Feel free
to correct me if I'm being unfair.

If you find anything on the
> recommended URLs that would indicate otherwise, please bring
> it to my attention.

Of course they don't, but that wasn't my point.

AIUI you have argued that in order for the twins to age differently
in their respective trips, then their respective counts (of orbits of
a particular Jovian moon viewed continuously) must also differ;
and that therefore, since SR predicts that the twins will have
different ages at the end of the trip, SR necessarily predicts that
the twins will observe different counts.

(By "different ages" I mean that one will have grey hair and
the other will not, one will have finished _War_and_Peace_
and the other will still be on Chapter 1, etc.)

Did I correctly characterize your opinion, above?

If so, then I retract nothing of my previous posts -- you have
misunderstood the twin paradox.

>
> I'll leave to the physicists at MIT and UT to explain how their beliefs
>
> about the behavior of moving clocks correlate with their credentials.
>
> :o)

Their beliefs are not particularly interesting to me -- though
FWIW in this very simple matter of sophomore-level physics
I think I can guess pretty well what they are. For purposes
of *this* discussion the real question is whether or not they
would agree with your opinion as I have summarized it
above, regarding the observations that would be made.

.

Relevant Pages

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