Dear all,
I've read Rogelio Menendez article on the 'Mile' Mine in Bembibre (Spain)
and I can make a small summary of it for these (few!) of you that do
not understand Spanish.
Rogelio is a geologist working for a mining company and he reports of
a now abandoned coal mine that consists of a 742
Dear Shadow/Light watchers,
Stab Dials with Italian Hours seem interesting. For one thing
there is no worry regarding
Equations of time, declination, daylight saving time,
longitude/meridian errors.
Yes. You're right! Italian hours are simple, elegant and useful even
nowadays.
In
it's a curious thing I saw this morning:
As far as I could gather, there are 25 countries or territories having
a Sun in their flags, these are the ones below.
The '?' means 'is it really a sun?' and I call for your collaboration to
clear them up or to include missing flags.
Of course, it'd be
I have been playing a bit with the equations for a bifilar dial trying to
reproduce the bifilar polar dial that I saw in your web. There you say
that the transversal gnomon is a piece of hyperbola, but I have found
that it is really a piece of ellipse (there are more solutions, but none
is an
So, in order to settle this debate once and for all, can we see a clear
sample drawing or closeup photo of one of your dials?
Hi, John and the rest,
I do not know why ;) ,but I am afraid that Mr. Hunt isn't going to
reveal us any detail of his successful
design. Anyway, as there
http://www.biol.rug.nl/maes/zonnewijzers/welcome-e.htm
and it is really FANTASTIC. Congratulations, Frans!
Roger is right on this of the double dateline, but (once again) what
about the EoT? I can't
see in the pictures any lines like these at Longwood Gardens
approximating (by minimum
Hi Roger, hi all!
What a fantastic letter that one by Roger Bailey! These are the
kind of things that make this list worthwile, despite from time
to time we derive to off-topics (or even to nonsense discussions!)...
but this happens as well when I meet my best friends.
Anselmo Perez Serrada
-
Hi, diallers!
Just a question and a nice motto I heard on the
TV:
The question is: can anybody tell mewhich is
the difference between unequal hours, canonical (ecclesiastical) hours and
(this is more difficult, I think) planetary
hours?
And the motto is:
So as nostalgia, I just show
