Assuming that a dial should read only local solar time is a rather
limited view. While it might be of interest to the dial purist, it is
not particularly useful to the general population and often requires a
lot of explanation. And it makes us seem like an eccentric clique. The
dial produces a shadow. The hour lines and other indications are
strictly our interpretation and a particular one should not be forced on
everybody else.
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On 2023-04-04 13:05, Michael Ossipoff wrote:
On Tue, Apr 4, 2023 at 08:45 <kool...@dickkoolish.com> wrote:
Rotating the dial plate around a vertical axis is wrong because the hours lines are not at constant angles.
Rotating the whole dial around the polar axis is the correct way to adjust a local solar time dial to a different longitude, the time zone center, for example.
Having a dial show the time in a different location is strictly a creative
choice.
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Rotating the dial about the vertical axis & then doing the non-meridian Al
tipping, in the right combination, is how you get the result that the dial is
oriented (still in the meridianal-plane) to give Local True Solar Time at your
standard meridian.
I don't know why anyone would want to do that, unless it's important to keep using an old EqT plaque.
On 2023-04-04 08:44, Jack Aubert via sundial wrote:
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