Re: Bulgarian Sundial Design
I meant to add: How to handle the rapid change in EoT around the solstices will be challenging. -Bill On 11/16/2011 3:46 AM, Mike Cowham wrote: Dear Sundial Friends, I have been in contact with a man, Boris Kostov, in Bulgaria whose father has made what he believes to be a unique sundial. He has tried to contact this mailing list but has so far been unsuccessful, so has asked me to forward the information. See attached pictures. Basically it is a fairly standard design of dial but the innovation is to add the Equation of Time to the gnomon so that when a finger is positioned such that its shadow falls on the central line of the hour scale, it is pointing at today's figure for EoT correction. He believes that this idea is new and solicits our opinions. If you have ever seen such a method before or wish to comment, please contact Boris Kostov, silveriu...@yahoo.com Thanks in advance. Regards, Mike Cowham. --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
Re: Bulgarian Sundial Design
I have not seen this design before. I like it and I think the public will too. I think it would be useful. -Bill On 11/16/2011 3:46 AM, Mike Cowham wrote: Dear Sundial Friends, I have been in contact with a man, Boris Kostov, in Bulgaria whose father has made what he believes to be a unique sundial. He has tried to contact this mailing list but has so far been unsuccessful, so has asked me to forward the information. See attached pictures. Basically it is a fairly standard design of dial but the innovation is to add the Equation of Time to the gnomon so that when a finger is positioned such that its shadow falls on the central line of the hour scale, it is pointing at today's figure for EoT correction. He believes that this idea is new and solicits our opinions. If you have ever seen such a method before or wish to comment, please contact Boris Kostov, silveriu...@yahoo.com Thanks in advance. Regards, Mike Cowham. --- https://lists.uni-koeln.de/mailman/listinfo/sundial --- https://lists.uni-koeln.de/mailman/listinfo/sundial
AW: Bulgarian Sundial Design
MAGUN from Biella probably would comment (concerning sundials): There is nothing new under the sun! * ** *** * ** *** Reinhold R. Kriegler Lat. 53° 6' 52,6" Nord; Long. 8° 53' 52,3 Ost; 48 m ü. N.N. GMT +1 (DST +2) www.ta-dip.de <http://de.youtube.com/watch?v=XyCoJHwzzjU&fmt=18> http://de.youtube.com/watch?v=XyCoJHwzzjU&fmt=18 <http://www.ta-dip.de/dies-und-das/r-e-i-n-h-o-l-d.html> http://www.ta-dip.de/dies-und-das/r-e-i-n-h-o-l-d.html -Ursprüngliche Nachricht- Von: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] Im Auftrag von Mike Cowham Gesendet: Mittwoch, 16. November 2011 09:47 An: sund...@rrz.uni-koeln.de Cc: Boris Kostov Betreff: Bulgarian Sundial Design Dear Sundial Friends, I have been in contact with a man, Boris Kostov, in Bulgaria whose father has made what he believes to be a unique sundial. He has tried to contact this mailing list but has so far been unsuccessful, so has asked me to forward the information. See attached pictures. Basically it is a fairly standard design of dial but the innovation is to add the Equation of Time to the gnomon so that when a finger is positioned such that its shadow falls on the central line of the hour scale, it is pointing at today's figure for EoT correction. He believes that this idea is new and solicits our opinions. If you have ever seen such a method before or wish to comment, please contact Boris Kostov, silveriu...@yahoo.com Thanks in advance. Regards, Mike Cowham. --- https://lists.uni-koeln.de/mailman/listinfo/sundial
