On Tue, May 07, 2019 at 11:37:46AM -0400, William H. Fite wrote:
> And it drives SpaceX nuts. Likely the other privates, as well. SpaceX
> recovers a faulty part or system, analyzes the problem, resolves it, tests
> the revision, and is ready to go. "No no," says NASA. "First we must have a
>
On 5/7/19 2:16 PM, Bob kb8tq wrote:
Hi
Well, given the price, running it in a thermal-vac chamber would not
significantly increase
the charges to your credit card :)
But perhaps Poul-Henning was thinking about the gravitational force.
So you could buy two, and drop them alternately down a
Hi
Helium is still a pretty good thermal conductor at low pressures. The reason
you backfill is thermal. Neon (or other heavy atom gasses) are relatively poor
thermal conductors.
Getters are wonderful as long as they don’t outgas. Turns out that is not as
simple a thing to “fix” as you might
Hi
Well, given the price, running it in a thermal-vac chamber would not
significantly increase
the charges to your credit card :)
Bob
> On May 7, 2019, at 3:23 PM, Poul-Henning Kamp wrote:
>
>
> In message , Bob kb8tq writes:
>
>> In terms of “I don’t want one” …. well, they are
In message , Bob kb8tq writes:
>In terms of “I don’t want one” …. well, they are pretty much the best Rb ever
>made anywhere / ever. They are as close as you will get to a maser and
>not *be* a maser.
Rumours has it that the design is optimized for space use and therefore
not quite as
Hi
It was EG Frequency Products back when I worked for them (not
in Salem, but still the same division).
They then bought Perkin Elmer and changed the name. Now they seem
to be somebody else ..,.,.
===
You can go into whatever loops you care to about the way space products
are done. The
And it drives SpaceX nuts. Likely the other privates, as well. SpaceX
recovers a faulty part or system, analyzes the problem, resolves it, tests
the revision, and is ready to go. "No no," says NASA. "First we must have a
workgroup to define the problem. Then we must have a workgroup to identify
On 2019-05-07 10:00 AM,
Bruce Griffiths wrote:
As expected the seller doesn't know, but offered 2 cells for the price of one
if further info on the cells he's offering can be provided.
Determining the cell filling would likely be somewhat interesting/challenging.
Absorption spectroscopy
On Fri, May 3, 2019 at 4:00 PM Clint Jay wrote:
> I've just laid my hands on a Datum PRS-50 Cesium reference which 'released
> the magic smoke'.
> A common problem with these is the capacitors in the main PSU but these
> have already been replaced by the previous owner.
>
> Unfortunately when he
73 pages!
On Tue, 7 May 2019 at 9:38 pm, Ole Petter Ronningen
wrote:
> Hi, all
>
> I just stumbled across a nice review paper from last year: (
> https://arxiv.org/ftp/arxiv/papers/1803/1803.01585.pdf) that perhaps
> others
> will find interesting.
>
> Primarily geared towards geodesy as the
Many thanks Ole,
I just read it, in fact very interesting!
regards
Arnold
Am 07.05.2019 um 12:48 schrieb Ole Petter Ronningen:
Hi, all
I just stumbled across a nice review paper from last year: (
https://arxiv.org/ftp/arxiv/papers/1803/1803.01585.pdf) that perhaps others
will find interesting.
I'm not sure if there is such a page, but IIRC they do make note on the
device firmware update changelog if there was a fix applied related to
WNRO...
> Is there a listing of Garmin GPS devices that have
> a WNRO problem - their support page doesn't state
> which ones have a problem.
>
> We
Hi, all
I just stumbled across a nice review paper from last year: (
https://arxiv.org/ftp/arxiv/papers/1803/1803.01585.pdf) that perhaps others
will find interesting.
Primarily geared towards geodesy as the title indicates, but it also looks
at several techniques of interest to time-nuts, such
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