Dear ALL,
what I wonder for a good while: Why is no one from Poland joining this discussion? They have founded a Sundial Society in 2006 and I am pretty sure that some of them are also connected with Daniel Roths Sundial Mailing-list. So this is a sincere invitation to POLAND, to Krzysztof Igras, to Krzysztof Kotynia or who ever might feel inspired by this US-American UK- European discussion. Johannes Hevel from Danzig would certainly be pleased about it! :-) Best wishes! Reinhold Kriegler * ** *** **** ***** ****** ******* Reinhold R. Kriegler Lat. 53° 6' 52,6" Nord; Long. 8° 53' 52,3 Ost; 48 m ü. N.N. www.ta-dip.de HYPERLINK "http://de.youtube.com/watch?v=XyCoJHwzzjU"http://de.youtube.com/watch?v=XyC oJHwzzjU -----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Frank King Gesendet: Dienstag, 22. April 2008 10:37 An: Roger Bailey Cc: sundial@uni-koeln.de Betreff: Re: A Most Beautiful Dial! Dear Roger et al, What fun! I fully concur with Chris Lusby Taylor's analysis though if you can trust anything about this trio of dials you can infer that the wall declines very slightly to the east... All three equinoctial lines slope downwards to the right (though not quite to the same extent). The inconsistency could be a result of photographic distortion. My best estimate is that the wall declines about 4 degrees to the east. I too calculated two dials, one showing Babylonian hours and the other Italian hours, and they seem to fit the images reasonably closely. We all agree that the hour numbers, as painted, are wrong but there is something extra curious about the numbers on the right-hand dial. These seem to label the spaces between the hour lines rather than the hour numbers themselves... Could this be a variant of using the ordinal numbers as in "the sixth hour" to label a period rather than a time? Oh, Roger, a special puzzle for you which relates to the message you sent out about your Ottoman dial: In your PDF version of the Wilanow Palace dials you will notice that the 12h Italian hour line and the 12h Babylonian hour line not only align one with the other but they are parallel to the horizon line. Can you show that the vertical separation of this 12-12 line from the horizon line is n.tan(2.phi) where n is the nodus height and phi is the latitude? Maybe you could test your client with this? Happy dialling Frank King Cambridge, U.K. --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.3/1390 - Release Date: 21.04.2008 16:23 No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.3/1390 - Release Date: 21.04.2008 16:23
--------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
