[time-nuts] Holdover, RTC for Pi as NTP GPS source
Magnus Danielson
magnus at rubidium.se
Wed Nov 1 21:54:18 UTC 2017
That sloppy temperaturestabilization???
Also, we would need to care about the lead-poisoning of the mu-metal and
the needed re-alignment... ehm... ah well.
Cheers,
Magnus
On 11/01/2017 04:29 PM, William H. Fite wrote:
> Inside a three-meter thick sphere of lead and mu-metal, pressure pulled
> down to .0000000001 mTorr , temperature regulated to .001 degree C,
> operating in total darkness and absolute silence, aligned with the
> galactic axis of rotation, and situated 20 light years from the nearest
> star.
>
> That should satisfy even the most obsessive TN.
>
>
>
> On Wednesday, November 1, 2017, Magnus Danielson
> <magnus at rubidium.dyndns.org <mailto:magnus at rubidium.dyndns.org>> wrote:
>
> Hi,
>
> On 11/01/2017 04:03 PM, jimlux wrote:
>
> On 11/1/17 7:37 AM, Magnus Danielson wrote:
>
> Hi,
>
> Silly people
>
> want a relative comfortable temperature and well, building
> A/C is typically bang/bang regulated so you get what you
> paid for.
>
>
> wouldn't a true time-nut be in a basically isothermal cave at
> 10C far underground, and just follow the classic mother's advice
> "put on a sweater if you feel cold"
>
>
> None of the NMI labs I've seen does this, but please, go ahead.
>
> Several of them was just underground, but not that cold.
>
> The two labs that where underground was relatively comfortable
> temperatures. :)
>
> Cheers,
> Magnus
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