RE: compass dial
It seems to me that the vertical offset of the base of a vertical rod arising from starting at the upper edge of the ordinary pole gnomon could prevent the shadow falling on the central compass rose unless the sun were fairly high in the sky. You may be able to judge the minimum solar altitude from your photos, Frank; for how much of a winter day would it be useful? On the other hand enough open vertical pole might be seen through the gnomon frets to cast a useful shadow. Is it possible that the central post holes were to take not a gnomon to show azimuth but a windvane? After all, windvanes were common enough on C16/17 portable dials especially the Nuremberg ivory diptychs. That also requires something fitting loosely and hence removably into (a pair of) bearing holes rather than a shadow casting vertical which could be fixed, and gives a plausible reason for double marking. Neither explains the Elias Allen dial, though, with a 180 degree rotated compass rose in the absence of such holes. Perhaps it WAS a mistake - engravers weren't immune from making them (I vaguely remember reading of a clock by a famous maker - even Tompion perhaps - with the signature upside down) and a major one like that is just the sort of thing that goes unnoticed until afterwards! Andrew James N 51 04' W 01 18' -Original Message- From: Frank Evans [mailto:[EMAIL PROTECTED] Sent: 05 August 2002 14:45 In one of the four photos I took I have now been able to see two small holes drilled in the gnomon. These are clearly for the reception of a removable vertical rod arising over the centre point. Thus the shadow of this rod would give the sun's bearing plus 16 points (180 degrees) Moreover, by listing the reciprocal the sun's actual bearing is recorded directly. -
Re: new dial link, a big work !
Thanks to Bill, It's a very interessant home page. A big work of inventory is to be done there. What a pity, I don't speak Italian. But it's so clear that I can understand the meaning of thoses pages. Is that sundial page in D.Roth's list ? www.dasyposius.com Our sundial club did create it, some months ago. Sorry, it's only in French :-) It's an other big work to write home page in two (or more) languages, without any non-sense for native speakers ! Gnomonically yours Alain MORY 4757 N 6 57 E 07/08/02 19:49:23, Bill Thayer <[EMAIL PROTECTED]> a Ècrit: >To add to the pot of sundial pages; I'm not finding it in D. Roth's >list (although an unrelated page on the same server, yes): > >http://www.nauticoartiglio.lu.it/Pgs/PGS_home.htm >Sundials in Italian Schools >-- > >Bill Thayer >41N53 87W38 >col cuore a >42N59.5 12E42.4 alt.313m > >http://www.ukans.edu/history/index/europe/ancient_rome/I/home.html >- > > -
Re: new dial link, a big work !
AP www.dasyposius.com -
AW: new dial link, a big work !
Dear Alain, may I give the correct url? it is: www.dasypodius.com By the way a very informative website! Yours Juergen Hoefeld 50°44' N7° E > -Ursprüngliche Nachricht- > Von: Alain MORY [mailto:[EMAIL PROTECTED] > Gesendet: Donnerstag, 8. August 2002 11:35 > An: Sundial-L; sundial@rrz.uni-koeln.de > Betreff: Re: new dial link, a big work ! > > > Thanks to Bill, > > It's a very interessant home page. A big work of inventory is > to be done there. > What a pity, I don't speak Italian. But it's so clear that I > can understand the meaning of thoses pages. > > Is that sundial page in D.Roth's list ? > > www.dasyposius.com > > Our sundial club did create it, some months ago. > Sorry, it's only in French :-) > It's an other big work to write home page in two (or more) > languages, without any non-sense for native speakers ! > > Gnomonically yours > > Alain MORY > 47°57 N > 6° 57 E > > > 07/08/02 19:49:23, Bill Thayer > <[EMAIL PROTECTED]> a écrit: > > >To add to the pot of sundial pages; I'm not finding it in D. Roth's > >list (although an unrelated page on the same server, yes): > > > >http://www.nauticoartiglio.lu.it/Pgs/PGS_home.htm > >Sundials in Italian Schools > >-- > > > >Bill Thayer > >41N53 87W38 > >col cuore a > >42N59.5 12E42.4 alt.313m > > > >http://www.ukans.edu/history/index/europe/ancient_rome/I/home.html > >- > > > > > > > > - > -
RE: new dial link, a big work !
It should I think be www.dasypodius.com AJ -Original Message- From: Alexei Pace [mailto:[EMAIL PROTECTED] Sent: 08 August 2002 11:42 To: sundial@rrz.uni-koeln.de Subject: Re: new dial link, a big work ! The link doesn't work here... AP >www.dasyposius.com - -
RE: new dial link, a big work !
Thanks- very nice website! took a lot of time to shoot all the photos ;0) on another topic, what is the difference between a hemispherium and a hemicyclium? AP At 13:45 08/08/02, you wrote: It should I think be www.dasypodius.com AJ -Original Message- From: Alexei Pace [mailto:[EMAIL PROTECTED]] Sent: 08 August 2002 11:42 To: sundial@rrz.uni-koeln.de Subject: Re: new dial link, a big work ! The link doesn't work here... AP >www.dasyposius.com - -
RE: French to English Web Translator
Hi All, This link did work and for those of us who need it in English I found a link which translates the web pages and all links adequately. I don't think it is the best but it is free and works! Just copy the new web site: www.dasypodius.com and then paste it into this translator: http://www.translate.ru/eng/srvurl.asp Good luck and enjoy this nice new dial site! Fritz -
RE: French to English Web Translator
Just for information the google search engine provides translation facilities as well at http://www.google.com/language_tools?hl=en Dave Crucefix -Original Message- From: Fritz Stumpges [mailto:[EMAIL PROTECTED] Sent: 08 August 2002 14:42 To: 'sundial@rrz.uni-koeln.de' Subject: RE: French to English Web Translator Hi All, This link did work and for those of us who need it in English I found a link which translates the web pages and all links adequately. I don't think it is the best but it is free and works! Just copy the new web site: www.dasypodius.com and then paste it into this translator: http://www.translate.ru/eng/srvurl.asp Good luck and enjoy this nice new dial site! Fritz - -
RE: compass dial
Andrew James wrote, >Neither explains the Elias Allen dial, though, with a 180 degree rotated >compass rose in the absence of such holes. Perhaps it WAS a mistake - >engravers weren't immune from making them (I vaguely remember reading of a >clock by a famous maker - even Tompion perhaps - with the signature upside >down) and a major one like that is just the sort of thing that goes >unnoticed until afterwards! And not just engravers in antiquity. I recall a picture of one of those large white warning signs on roads which are obviously stencilled. This one read 'SLOM'. Tony Moss -
