How about "Moment Dials"= "Memento Mori Dial"? If it would be such a
dial I would expect some clarifying text in the neighbourhood.
This looks more like a shading roof. And all those squares, no I
can't even imagin that this cpould be a Memento Mori Dial.
Thibaud
At 02:57 27-9-2009, John Carmichael wrote:
I know this isn't like your projection dials Thibaud, but one can
have a sundial without any hour or date lines at all. I call these
"Moment Dials" for lack better name. (Is there an official gnomonic
name for these John Davis?). These are perhaps the simplest of all
dials. They are simply a nodus whose shadow, or projected beam of
light, indicates a specific time on a specific date. I saw a couple
of them in old churches in Italy last year where there was a hole in
the wall and a beam of light shined on a religious relic inside the
church at a certain time on a certain date.
In this case of the odd stained glass structure in Venice, the
entire round roof made of stained glass might cast its image
centered on the circular floor at a certain date and time. So maybe
it could be a "Moment Dial". I guess you're right that it isn't a
true projection dial like the ones you and Fred came up with.
Heck- it's probably just some sculpture that a crazed artist dreamed up!
John
From: sundial-boun...@uni-koeln.de
[mailto:sundial-boun...@uni-koeln.de] On Behalf Of Th. Taudin Chabot
Sent: Saturday, September 26, 2009 12:45 PM
To: sund...@rrz.uni-koeln.de
Subject: Re: A stained glas projection dial?
This is definitly no sundial, not even a projection dial. If it was
the (shadow)lines should be curved.
However the idea could be used to make a nice projection sundial.
Thibaud
At 18:54 26-9-2009, John Carmichael wrote:
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Have any of you see this odd structure in the Giardini at the 2007
Venice Biennale? I'm trying to figure out how this might function
as a sundial. If it is a sundial, it might be classified as a
stained glass projection dial. My best guess is that when the
colored projected image of the circle is centered on the white
circular surface on the ground, that this is some significant time
and date. Any ideas?
See:
<http://www.flickr.com/photos/caranti/1405841967/in/pool-1207...@n23>http://www.flickr.com/photos/caranti/1405841967/in/pool-1207...@n23
John
p.s. Photos of unusual existing and potential gnomons have been
pouring into this pool. As of this morning there are 627 entries!
<http://www.flickr.com/groups/1207...@n23/>http://www.flickr.com/groups/1207...@n23/
John L. Carmichael
Sundial Sculptures
925 E. Foothills Dr.
Tucson AZ 85718-4716
USA
Tel: 520-6961709
Email: <mailto:jlcarmich...@comcast.net>jlcarmich...@comcast.net
My Websites:
(business) Sundial Sculptures:
<http://www.sundialsculptures.com/>http://www.sundialsculptures.com
(educational) Chinook Trail Sundial:
<http://advanceassociates.com/Sundials/COSprings/>http://advanceassociates.com/Sundials/COSprings/
(educational) Earth & Sky Equatorial Sundial:
<http://advanceassociates.com/Sundials/Earth-Sky_Dial/>http://advanceassociates.com/Sundials/Earth-Sky_Dial/
(educational) Gnomons, Styles & Nodi:
<http://www.flickr.com/groups/1207...@n23/>http://www.flickr.com/groups/1207...@n23/
(educational) My Painted Wall Sundial:
<http://www.advanceassociates.com/WallDial>http://www.advanceassociates.com/WallDial
(educational) Painted Wall Sundials:
<http://advanceassociates.com/WallDial/PWS_Home.html>http://advanceassociates.com/WallDial/PWS_Home.html
(educational) Stained Glass Sundials:
<http://www.stainedglasssundials.com/>http://www.stainedglasssundials.com
(educational) Sundial Cupolas, Towers & Chimneys:
<http://stainedglasssundials.com/CupolaSundial/index.html>http://StainedGlassSundials.com/CupolaSundial/index.html
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