Dear all,
does anyone of our Italian Sundial friends know whether the Roman Cylinder
Sundial described by Mario Arnaldi and Karl-Heinz Schaldach in the Museo
Atestino in Este is on display in these days?
I might have the opportunity to visit Este on our trip from Padua to Ravenna
on May 9 and
Dear Juergen,
I suppose is still in the Museum of Este. I don't think it is out, I can try to
phone them.
Mario Arnaldi
- Original Message -
From: Jürgen Hoefeld
To: sund...@rrz.uni-koeln.de
Sent: Tuesday, April 28, 2009 9:54 AM
Subject: Roman Cylinder Dial in the Museum
When I use two gnomons, I use half the cylinder space
for summer, the other half for winter. That keeps it
clear and uncluttered.
For one gnomon, you may use the entire space on the
cylinder.
You are not missing anything. My web site has stuff on
shepherd dials [ www.illustratingshadows.com ]
I recently acquired a modern reproduction shepherd's dial. On it is an
inscription in latin:
Quaere diem anni eique respondentem locum solis
cui applicandus superne stylus competens
longior, sole existente in signis borealibus
brevior in austrinis:
et umbra , rectis parallela, extremitate
Hi David,
I can't offer any advice on translation.
These dials don't transcend latitudes well using the same hour lines. While
your thinking of tilt works for the noon high-altitude reading each day, it
will be more excessively off going away from noon the further one gets from the
Hello,
I teach Latin, and should have some time in the next few days to
translate this somewhat stylishly, if you'd like. So far, what is
there seems to me correct.
Best wishes,
On 2008 April 23, at 12:57:03, [EMAIL PROTECTED] wrote:
I recently acquired a modern reproduction
Two points. First, two gnomons are used for summer and
winter. I have quite a few with two gnomons.
Second, the shepherd dial can be used at different
latitudes, there is one constratint and that
constraint removes the main benefit of the sundual. I
go into this issue as well as the same issue on
For the shepherd dials you reference having two gnomons for different times of
year, are they made with two sets of hour lines or a composit of hour lines
made to best utilize the pillar space? Perhaps even an hour line layout that
more just approximates the actual time with the different
Dear Dialists,
My PostScript cylinder dial program (http://www.cyberspace.org/~jh/dial/)
was, it pains me to say, wrong. Sorry. I hope nobody used it to determine
the time of anything more important than lunch. If you downloaded it
before xmax eve please recycle it and download a new one
Daylight savings time is gone!! HOORAY! I'm sure lots of you love it but
not me.
To celebrate I've put another postscript sundial program on the web. This
one is for a Cylinder dial. It's not interactive yet. By next week you'll
be able to submit your latitude and the height and circumferance
Sorry about the problem with the links. I think the problem turned out to
be part of the price of free webspace. I think I have it fixed. It
must be browser related because they all always worked for me with lynx.
I'm using tripod because they offer cgi hosting but I'm using a borrowed
account
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