This dam dial reminded me of a similar sort of dial in a silo in Louisa VA. See
the NASS Registry #594 or go to this direct link to the dial.
http://www.louisasundial.com
The silo sundial was created in 1985, designed by Dr. Larry Kavanagh and
painted by family and friends. I believe it is an altitude dial with the gnomon
point being the rim at the point in line with the sun. The gnomon point
naturally moves with the azimuth of the sun. The lowest point on the shadow
tells the time against the time lines.
Regards,
Roger Bailey
From: Bill Gottesman
Sent: Thursday, June 18, 2009 10:13 AM
To: Willy Leenders
Cc: Sundial List
Subject: Re: Translations
I, too would like to see the math. I would love to try and work this out, but
I don't have the time at present, and I'm not sure I am up to the task anyway.
I can imagine that it may involve an "envelope" of line intersections, much the
same way an astroid is a curve drawn from intersections of lines strung across
a square. Fred Sawyer wrote a British Sundial Society article in 1994, using
this type of math as applied to the analemmatic sundial at Longwood Gardens in
Pennsylvania.
-Bill
Willy Leenders wrote:
Is there anyone who understand the mathematics behind the sundial concept,
i.e. determining the hour lines so that the curved form of the shadow touches
this lines in a point at the concerned time ?
Willy LEENDERS
Hasselt in Flanders (Belgium)
www.wijzerweb.be
Op 16-jun-2009, om 12:12 heeft Frans W. Maes het volgende geschreven:
Dear Steve and all,
Three free translators I sometimes use for websites or short texts, are:
- Babelfish: http://babelfish.yahoo.com/
- Google: http://translate.google.com/
- Prompt: http://www.online-translator.com/
You may try each on the AFP press release:
http://www.google.com/hostednews/afp/article/ALeqM5gFPjvks3c5EemskZkRWhCB-Fu_IA
and judge the quality (when you read French and English) or see whether
you get the message. In this case, the photos set the stage for the
story, so that makes it easier.
For this limited sample, I think Prompt does a slightly better job than
Google, and Babelfish is last. What do you think, Joël?
Prompt marks the words that were not translated, such as proper names,
which is handy.
More generally, a simple original, both in terminology and in grammar,
leads to a better translation. That's why e-mail messages often
translate badly.
For me, the most important paragraph in this text is how the sundial
should function:
"Innovation de ce cadran: c'est l'ombre même du parapet projetée sur la
voûte du barrage qui permet de lire l'heure solaire.
Chaque heure est matérialisée par une "ligne horaire" confectionnée avec
des plaques en lave émaillée: ocres pour les heures du matin, vertes
pour celles de l'après-midi. L'heure solaire est connue lorsque l'ombre
tangente l'une de ces lignes."
which translates into:
Babelfish:
Innovation of this dial: it is the shade even parapet projected on the
vault of the stopping which makes it possible to read the solar hour.
Each hour is materialized by a “time line” made with plates in enamelled
lava: ochres for the hours of the morning, green for those of the
afternoon. The solar hour is known when the tangent shade one of these
lines.
Google:
Innovation of the dial: the very shadow of the parapet onto the arch
dam, which allows you to get the solar time.
Each hour is marked by a "line timetable" made with plates in enamelled
lava: ochers for the morning, green for those in the afternoon. The
solar time is known when the shadow tangent one of these lines.
Prompt:
Innovation of this face: it is the shadow of the breastwork cast on the
arch of the dam which allows to read the solar hour.
Every hour is fulfilled by a "line per hour" made with plates in
interspersed lava: ochres for hours, green for those of afternoon. The
solar hour is known when tangent shadow one of these lines.
In the original, the most essential word of the entire story is
"tangente", which apparently is used as a verb: the shadow of the edge
touches (kisses, osculates) an hour line. This may be an uncommon usage,
as all three utilities interpret it as an adjective and try to make at
least some sense out of it.
And I wonder what the lava strips are made of...
Best regards,
Frans Maes
Steve wrote:
Confrere:
I am interested in translating email and web
pages into English. I use as example the note
from Joel about the Castillon Dam. The link
contained in his email is to a web page in French and so my question.
I use Eudora for mail and have receded to FireFox
version 2.00.18. However, I have tried various
translators with several versions without much success.
My question. Does anyone use a translation
program for email and the web, with success.
Thanks
Steve
Yorktown VA
At 01:13 PM 6/15/2009, robic.joel wrote:
Hello Frans and all,
It's the Castillon Dam, see this AFP article, you will understand
easiler
the principle
http://www.google.com/hostednews/afp/article/ALeqM5gFPjvks3c5EemskZkRWhCB-Fu_IA
More information is available in French "Cadran Info" magazine
(including
modelling by Gérard Baillet and calculations from Denis Savoie).
Best regards
Joël
48°01'25'' N, 1°45'40" O
---> http://www.cadrans-solaires.fr/
----- Original Message -----
From: "Frans W. Maes" <f.w.m...@rug.nl>
To: "Josef Pastor" <j.pas...@gmx.de>
Cc: ""'Sonnenuhr (Uni Köln)'"" <sundial@uni-koeln.de>
Sent: Monday, June 15, 2009 4:56 PM
Subject: Re: French dam to be world´s biggest sundial
Dear all,
The audio track of the video is bad, so I was unable to hear which dam
this is, and how the sundial would function. Does anyone know more
about
this intriguing project?
Best regards,
Frans Maes
Josef Pastor wrote:
Dear Dialists,
Famous French Denis Savoie presents a French dam to be world´s
biggest
sundial on "You Tube".
http://www.youtube.com/watch?v=7-NJIhliZG4
Best regards
Josef Pastor
**
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