[time-nuts] finding time astronomically.
albertson.chris at gmail.com
Mon Jan 23 21:39:54 EST 2012
On Mon, Jan 23, 2012 at 6:07 PM, J. Forster <jfor at quikus.com> wrote:
>> I think you'd want a slit, not a pin hole. The pin hole would be
>> better but it would only work one day a year.
> Actually two days per year, unless it was adjusted for the summer or
> winter solstice, then it'd be one.
I still think it is "one". because there are not an integer number of
days per year so you don't get and exact repeat in 6 months. Maybe a
pin hole would only work once ever? I don't know. To "work" the
pinhole has to exactly line up with the detector at the exact same
time of day.
But I'm not liking slits either because I can't see how to adjust them
to exact vertical.
I'm back to the first thing I thought of, a wire with a large weight.
Then you measure the light curve as shadow of the wire sweeps over
Redondo Beach, California
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