I'll check it out. I suspect that there's no way that the declination-lines
for a Horizontal Dial can be anything like as brief as that for the Polar
and Tube Dials, because the horizontal surface, though convenient for
building the dial, lacks any of the orientation-convenience of the Polar
and
Is there an easy explanation/derivation for the solar-declination lines on
a Horizontal-Dial? I mean, easiness comparable to that of the
declination-lines for a Polar-Dial or a Tube-Dial (Circumference-Aperature
Cylindrical-Equatorial Dial)?
.
The explanation for the Horizontal-Dial's hour-lines
