On 1/19/14 1:49 AM, Chris Albertson wrote:
On Sat, Jan 18, 2014 at 11:14 PM, David J Taylor <
david-tay...@blueyonder.co.uk> wrote:
Are you perhaps thinking of sidereal time, Chris?
Either way, the difference is within the limits of the basic tin wind-up
alarm clock. A quality wrist watch would not work because it is to good
and harder to adjust. Something like this:
Westclox-15396-Ardmore-Twin-Bell<http://www.amazon.com/Westclox-15396-Ardmore-Twin-Bell/dp/B0000V0DEW/ref=pd_sim_hg_1>
Now if the OP wants to track apparent solar time to better then a few
seconds per month, then it gets real hard if you have to do it with
springs, pendulums and gears because the clock needs to track the date. I
think you might need some kind of of non-round cam that revolves once per
year.
That's what the 'equation clocks' in the Wikipedia article do.
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