[time-nuts] Next Aug 21 eclipse and time flow
michael.cook at sfr.fr
Mon May 29 05:42:53 EDT 2017
To my mind there may be some effect due to small variations in gravity. The Chinese paper is very interesting and does propose classical explanations for the observed gravimeter anomalies. Even so , the variations that were detected by them should be detectable with a sufficiently stable clock. However as the reported anomalies are only 6-7 micro-gal which, using a quick interpolation of the units wikipedia article data, is roughly equivalent to an altitude variation of 2-3cm. That would probably be undetectable with anything less than an ion clock.
> Le 29 mai 2017 à 09:49, Michael Wouters <michaeljwouters at gmail.com> a écrit :
> The effect you're looking for depends on a comparison of two different
> kinds of atomic clocks eg Cs vs H-maser so the maser comparison presumably
> will be a null measurement.
> But I see the path of totality passes a bit north of NIST Boulder and I'm
> pretty sure they will notice if there is an effect ! ( I'm highly sceptical
> there is one. Searches for exotic physics over the last three decades have
> consistently turned up nothing. I did it myself at the beginning of my
> career with the "fifth force", a composition-dependent, short range
> gravity-like force. The positive results all turned out to have very subtle
> classical physics explanations)
> On Mon, 29 May 2017 at 9:35 am, Jim Palfreyman <jim77742 at gmail.com> wrote:
>> Personally I go with the Nature article. The other papers look like they
>> are anomaly hunting because they have a known event.
>> Having said that, we have two H masers at our observatory in Hobart and we
>> have a system set up to measure their phase difference down to about 0.03
>> ns. I will report back any anomaly.
>> Did We, of course, are not in the path of the eclipse, however
>> there is still an alignment. Just through the Earth.
>> Jim Palfreyman
>> On 29 May 2017 at 08:17, iovane--- via time-nuts <time-nuts at febo.com>
>>> On august 21 2017 a solar eclipse will sweep USA from coast to coast. A
>>> lifetime opportunity to do coordinated experiments to check this or that.
>>> One of the questions that doesn't have a final answer yet is whether or
>>> solar eclipses could affect the flow of time. They exist conflicting
>>> reports: Negative: http://www.nature.com/nature/journal/v402/n6763/full/
>>> 402749a0.html Positive: http://home.t01.itscom.net/
>>> allais/blackprior/zhou/zhou-1.pdf http://home.t01.itscom.net/
>>> allais/blackprior/zhou/zhou-2.pdfPersonally I believe that the positive
>>> results were due to spurious responses of the atomic clocks to something
>>> else than gravity, or the clocks failed for some reason (e.g. jumping
>>> crystals then steered), or lower quality clocks had been sold to China.
>>> Anyway the recorded data do show an anomaly.As far as I know, no atomic
>>> clock tests are planned anywhere for that circumstance, but sincerely I
>>> don't believe this is the truth.Maybe the US time-nuts community, using
>>> of atomic clocks, could give the final answer doing tests during the
>>> above mentioned eclipse.US time-nuts, what about the idea of doing
>>> yourselves a large scale coordinated test? Or do you actually believe
>>> this question is already definitively closed?(Even discovering that
>>> clocks might respond to someting else than gravity would be of great
>>> interest).Antonio I8IOV
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