[time-nuts] Determining Time-Nut infection severity.

Jean-Louis Oneto Jean-Louis.Oneto at obs-azur.fr
Sun Oct 24 22:44:49 UTC 2010


Since it's a volume, isn't rather 30k x 30k x 5k = 4.5 Gbit ?
(I ignored the toolholder parameter, I don't understand how to take it into 
a    ccount)
;-}

----- Original Message ----- 
From: "Poul-Henning Kamp" <phk at phk.freebsd.dk>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Sunday, October 24, 2010 8:58 PM
Subject: Re: [time-nuts] Determining Time-Nut infection severity.


> In message <53601812-FC62-4098-9266-55EDF50AFB2C at nf6x.net>, "Mark J. 
> Blair" wri
> tes:
>
>>Does anybody know how many bits of precision are used
>>on tombstones these days?
>
> Most tombstones are engraved with CNC machines and while I have yet
> to see a company advertise it as a competitive parameter, your vital
> lack of stats will be engraved with better than 1/50mm precision.
>
> On one picture I saw at cnczone.com they used approx 10 different
> diamondcrusted bits.
>
> Estimating bitcounts we find:
>
> X-axis ~30k [60cm / 1/50mm]
> Y-axis ~30k [60cm / 1/50mm]
> Z-axis ~5k [10cm / 1/50mm]
> Toolholder ~10 [visual estimate]
> -----------------------------------------
> Total ~65k bits
>
> :-)
>
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by 
> incompetence.
>
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