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 <michaeljwout...@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) > > Cheers > Michael > > On Mon, 29 May 2017 at 9:35 am, Jim Palfreyman <jim77...@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 >> gravitationally >> there is still an alignment. Just through the Earth. >> >> >> Jim Palfreyman >> >> >> On 29 May 2017 at 08:17, iovane--- via time-nuts <time-nuts@febo.com> >> wrote: >> >>> 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 >> not >>> 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 >> its >>> plenty >>> 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 >> that >>> this question is already definitively closed?(Even discovering that >> atomic >>> clocks might respond to someting else than gravity would be of great >>> interest).Antonio I8IOV >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>> mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. "The power of accurate observation is commonly called cynicism by those who have not got it. » George Bernard Shaw _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
