[time-nuts] WWVB & Eclipse
William H. Fite
omniryx at gmail.com
Fri Jul 14 10:20:07 EDT 2017
Thanks, Tom. I have read several papers on various technical/scientific on
eclipses but there are always so many more...
Some friends of mine from the University of Nottingham are coming over to
gather some data for dark matter studies. My spouse and a colleague from
Singapore are hoping to get their hands on some data for re-analysis that
will be collected by folks from MIT.
All in all, an exciting time.
On Friday, July 14, 2017, Tom Van Baak <tvb at leapsecond.com> wrote:
> Hi Bill,
> > Did I put my foot in it? It was a sincere question.
> No, it's was a good question, don't worry about that. I just don't have a
> good answer, or one that stays on-topic for time-nuts.
> If you read a bunch of papers about eclipses you'll find that all sorts of
> interesting and rare things do or may occur. And especially for this modern
> one in 2017, scientists are ready to see what they can see. Presumably over
> the next year you'll slowly read reports varying from dark matter or
> gravity to ionosphere or animal behavior, to who knows what, etc. Some
> positive, some negative; some legit, some bogus.
> A total solar eclipse is more than the majestic sight of the sky going
> dark for a minute. Consider that solar radiation is something like 1 kW /
> sq meter, or 1 GW per sq km. The 2000 mile-an-hour black spot of totality
> is about 60 mi across. Call it 100 km square and this means the moon
> suddenly interrupts 10,000 GW of power from hitting the atmosphere and
> ground. That's kind of a lot. Multiply that by 100 s (roughly how long
> totality lasts above your head) and you get 1,000 TJ (Tera-Joules) of
> sudden "missing" energy over your head. For perspective, the Hiroshima bomb
> was "just" 60 TJ worth of energy .
> I don't know what this energy on-off-on toggle switch will do. But surely
> it will do something subtle and interesting and maybe measurable. So
> tracking WWVB or GPS signal strength and latency and stuff like that is a
> pretty cheap experiment that may or may not have interesting results. It's
> once-in-a-lifetime for most of us.
> So that's what Bob & I were referring to. Earlier I sent links showing the
> kind of research people can do with raw GPS signal data, well beyond what
> we do here with just 1PPS measurements.
>  https://en.wikipedia.org/wiki/TNT_equivalent
> ----- Original Message -----
> To: "Discussion of precise time and frequency measurement" <
> Sent: Thursday, July 13, 2017 8:06 PM
> Subject: Re: [time-nuts] WWVB & Eclipse
> Did I put my foot in it? It was a sincere question.
> > Hi
> > I think we are both taking it as a given that the eclipse’s impact on the
> > ionosphere will
> > be “visible” even with a fairly simple setup. I guess that might qualify
> > for a very loose
> > definition of the term “hypothesis” in my case. I can’t speak for Tom.
> > Bob
> > > On Jul 13, 2017, at 6:24 PM, William H. Fite <omniryx at gmail.com
> > >
> > > Tom, are some specific hypotheses being tested or is this purely
> > > exploratory?
> > >
> > > Bill
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William H Fite, PhD
Statistical Analysis & Research Methods
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