Re: Can anyone describe the differences here?


David wrote:

The situation I'm trying to understand is where two frames agree that
the rod is a certain shape before time t0 and after time t0 one frame
says the rod hasn't changed shape or length while the other frame says
that the rod has changed shape and length.

Please help me try to understand your question. Here is my starting
point:

Any change in shape or simultaneity is caused by the Lorentz
Transformation.
This transformation is assumed remain unchanged for all time prior to
and after t0.
So any disagreement the two frames have will always exist. A contracted
rod will
always be contracted. A slow wristwatch will always be a slow
wristwatch.

There is no time t0 when the frames suddenly begin to disagree.

I apologize if I am not understanding you.

.

Relevant Pages

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