---------- Forwarded message --------- From: Michael Ossipoff <email9648...@gmail.com> Date: Tue, Apr 4, 2023 at 09:53 Subject: Re: Adjusting dial to new location To: <kool...@dickkoolish.com>
The combination of rotation about the vertical axis, & then non-meridianal tipping, hadn’t occurred to me. …to directly read the Local True Solar Time of somewhere else. …so that you can just use your old EqT plaque after you move? Wouldn’t have occurred to me. I’d just make a table incorporating EqT & the new longitude- correction. I wouldn’t want a sundial to be committed to clock-time, by building in the longitude correction (either when marking the dial, or by the rotation & tipping). 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. > --- > > > > On 2023-04-04 08:44, Jack Aubert via sundial wrote: > > Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die > eigentliche Nachricht steht dadurch in einem Anhang. > > This message was wrapped to be DMARC compliant. The actual message > text is therefore in an attachment. > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > >
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