Frank,
May I have a second try at answering your quiz?
I'm still not doing it for a nickel, though.
My new suggestion would be much the same set-up as for my first
suggestion, but this time I feel sure the dial face can be entirely
within the noon gap area (that is, assuming the noon gap is
Hi Frank,
At the Adler Planetarium, there is a portable universal equatorial brass
sundial (T-19) with a propped equatorial plate whose edges cast a shadow on a
horizontal surface below. It works in a similar manner to the Nuremberg
diptych Maciej pointed out.
The same technique is used
Hello Frank,
Could the space be a north-south alley, street, or park between two
buildings? The vertical sides of the buildings adjoining the space can be
seen as two vertical gnomons for an azimuthal dial. You would lay out the
morning hours to the west of the eastern building, and the
Dear Maciej and Sara,
Gosh. Those are really incredible dials.
The Nested L-shapes of the chapter rings
on the Jacques Le Marie dial are very
cleverly set out. I wonder how big a
market there was for this kind of dial!
Maciej's description of a Nuremberg
Diptych - The shadow was cast by the
