[time-nuts] finding time astronomically.
phk at phk.freebsd.dk
Mon Jan 23 17:11:54 EST 2012
In message <4F1DD9D3.6050003 at earthlink.net>, Jim Lux writes:
>On 1/23/12 1:20 PM, Doug Millar wrote:
>> A mercury mirror is better than a plumb bob.
But not much.
Both of them are subject to aberations of the local gravity vector
(any mountains, valleys near by ?) and in the case of a rotating
liquid metal mirror to a lesser degree to interaction with the earths
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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