[time-nuts] The GPS velocity of light versus neutrinos
Chris Albertson
albertson.chris at gmail.com
Tue Nov 22 05:05:16 UTC 2011
You guys missed my point. I did not mean that survey and timing errors are
so large What I meant was that even if you assume unreasonably large
errors (like a surveyor being off by a full meter) you still don't get
60nS.
If I were to bet money, still I'd bet on some experimental error. That is
the safe bet. But I'd sure be happy to loose
On Mon, Nov 21, 2011 at 7:57 PM, Jim Lux <jimlux at earthlink.net> wrote:
> On 11/21/11 5:15 PM, Bob Camp wrote:
>
>> Hi
>>
>> You can have a surveyor come out and locate your gizmo to sub one inch
>> accuracy for a lot less than a clock trip costs. A one meter ( or 3 ns)
>> error would be pretty large these days. Both have been demonstrated /
>> proven so often that they aren't really open to challenge.
>>
>> The total error is a sum of lots of things. Location and time of day are
>> the easy stuff...
>>
>
> OK, So assume an unlikely huge position uncertainly of one meter. On
>>> top of
>>> that let's assume the surveyor got it wrong too and missed by a full
>>> meter. Both of these added together can only account for about 10%
>>> of what they saw. Light moves across one meter in about 3nS You
>>> need to explain 60nS If the result is because of uncertainty in the
>>> location then the we are talking about 20 meters of position error.
>>>
>>
>
>
> in the first paper, the distance uncertainty was given as 20cm
>
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--
Chris Albertson
Redondo Beach, California
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