[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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