[time-nuts] Question re neutrinos and GPS

bg at lysator.liu.se bg at lysator.liu.se
Fri Jan 6 23:37:08 UTC 2012


Hi Antonio,

> "The GPS is very unlikely to give an accurate speed for anything near the
> speed of light - for there are many known effects not taken into account
> by the GPS protocol.
> In the end the OPERA experiment may alert people to the assumptions and
> approximations implicit in the GPS."
>
> This wrongfooted me. So please, does the above quoted statement have any
> meaning for time-nuts? Don't answer "ask the author of the statement"
> please, I
> would like to hear the opinion of time-nuts.

In what way is GPS measuring the speed of the neutrions directly? It is
not that you have a GPS receiver riding the neutrions from the starting
site to the finish site... ;-)

The GPS receivers are syncing the reference clocks at both the sites. GPS
can be used for time/freq transfer, and is a well established tool for
that.

I fail to see the meaning of the quoted statement.

--

   Björn





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