Re: When does a FOR cease to be a FOR?
- From: "PD" <TheDraperFamily@xxxxxxxxx>
- Date: 19 Oct 2005 07:21:40 -0700
Daniel Weston wrote:
> I am sure that this is a naive question, but I would like it to be
> clarified in my own mind. Take a laboratory as a FOR. Does movement
> within the lab destroy the lab as a FOR?
No. The FOR is still there.
> If a scientist changes
> position from one end of the lab to the other, is the scientist in the
> lab's FOR during this travel?
Yes, but s/he's not *at rest* with respect to this FOR during this
travel. Therefore some claims s/he might have made on the basis of
being at rest (such as clocks stationed around the lab remaining
synchronized) will be suspended while the scientist is moving. What the
scientist can conclude at the end of the travel depends on what claim
is to be made.
> Does the lab cease to consist of 1 FOR
> upon internal motion?
The lab exists in *many* FORs. It can only be at rest with respect to
one of them at a time, however.
> If motion within the lab destroys the lab and its
> contents from being in the same FOR, does this mean that a moving
> experiment cannot be done within a single FOR?
Certainly it can be done. However, one has to be careful about whether
the results of that experiment will be the same as one done at rest in
that FOR.
>
> Depending on the answer I have some follow up questions.
.
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