[meteorite-list] Second experiment confirms faster-than-light particles gps accuracy

[Chris Peterson]

It isn't a question of absolute accuracy of the clocks, but of knowing 
the time difference in two different places, which are in separate, 
non-inertial frames. In practice, it is very difficult to keep two 
clocks in absolute sync when they are located hundreds of miles apart on 
the surface of the Earth. It is a complex problem in Relativity to back 
out all the effects that introduce errors.

Chris

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Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

On 11/20/2011 10:21 AM, Steve Dunklee wrote:
> This article contains gps info and accuracy . It states it depends on the earths movement and other factors and gives an accuracy of 14 nanoseconds. A 60 nanosecond difference in measurements is way off the accuracy of the gps clocks.
>
> http://en.wikipedia.org/wiki/Effects_of_relativity_on_GPS#Relativity
>
> cheers
> Steve Dunklee