George Dishman replied to Henri Wilson:
>> But I have never claimed that this is the major contributor
>> to the sagnac effect. For one thing, I have shown that two
>> beams leaving the splitting mirror 45 apart do not recombine
>> at the one point.
> And I have pointed out many times that that has
> no effect on the time difference whatsoever.
Am I correct in understanding that the extremely tiny
offset of the two lines in Henry's program is due to a
trivially minor rounding error in the calculations?
Probably caused by measuring a distance in pixels?
> The simple way is to move the loop along one arm and
> measure the slope of the phase difference as a function
> of distance.
I think Henry doesn't realize how easy your version of
the experiment is. Moving the loop is trivial. I think
two people working together-- Henry and an assistant--
could put the whole thing together, get the measurements,
and take it down inside of eight hours.
Do you agree, or have I missed something?
-- Jeff, in Minneapolis