Hi Doug A comment you made in your letter about Daylight Time scales on analemmatic dials was intriguing because just last week I was looking at the beautiful analemmatic dial in Louisiana on the Sunclock website picture gallery. http://www.argonet.co.uk/education/sunclocks/info/select.htm
I struck me as very odd that the Standard Time ellipse has much larger radii than the smaller Daylight Saving Time ellipse, yet both ellipses use the same dateline. (I was going to ask Roger Bailey and Fer about it). From my limited knowledge of analemmatics, I think this design will not function correctly because if you change the size of the ellipse, you must also change the size of the dateline. This could explain why you've had complaints about Daylight Savings markings. The only way you could show both Standard and Daylight Saving would be to have removable numerals that use the same ellipse that you change twice a year. (But even then it won't show Standard or Daylight Saving unless corrected for EOT). It would be a shame to limit your sales market to those areas that only have Standard Time because you be abandoning 95% of your potential customers. I might be wrong though. (Roger, Fer any comments?) John John L. Carmichael Jr. Sundial Sculptures 925 E. Foothills Dr. Tucson Arizona 85718 USA Tel: 520-696-1709 Email: [EMAIL PROTECTED] Website: <http://www.sundialsculptures.com> ----- Original Message ----- From: "Mr. D. Hunt" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, September 03, 2002 4:24 AM Subject: Seeking any sundial enthusiasts in Turkey, (Istanbul area) > > Does anyone know whether there are members of this "Sundial Mailing List", > in Turkey (Istanbul area) - or maybe sundial enthusiasts, in that region ? > > We have been contacted by a person, who wants to install a 'Human Sundial' > (or large-scale 'analemmatic' dial), in the Uskudar part of Istanbul - but > prefers to have layout plans and instructions in Turkish language (because > their English is very weak), or to be put in contact (even just by E-mail) > with any person who would be able to give them help in their own language. > > They want to have a traditional 'one-ring' analemmatic layout, and not the > double-ring "Sunclock" version (both Standard & Daylight-Saving) for which > our business supplies personalized Layout Plans. Apart from the 'language > difficulty', it is not our policy to provide single-ring analemmatic plans > to any countries which use Daylight-Saving Time - as doing so could have a > significant detrimental effect on our business reputation, so we only sell > plans for one-ring dials to places which remain on Standard time all year. > > If anyone could possibly help with conventional 'analemmatic' layout plans > and instructions, in Turkish language - then please contact me (by E-mail) > so I can give you full details (Tel/Fax/E-mail) for the person, in Turkey. > They can provide the exact Latitude and Longitude co-ordinates, via 'GPS', > and will be happy to pay for the time and effort involved in helping them. > > Douglas Hunt. > > -- > > "MODERN SUNCLOCKS" - 'Human Sundials', using YOUR OWN SHADOW to tell time. > > Looking for a useful, decorative, yet UNIQUE feature ? - you've found it ! > For further details and photographs, see our Website at: www.sunclocks.com > > Mail Address: 1 Love Street, Kilwinning, Ayrshire, Scotland, KA13 7LQ, UK. > Tel & Fax (UK): 01294 552250. International Tel & Fax: + 44 1294 552250. > Send E-mail to: [EMAIL PROTECTED] OR [EMAIL PROTECTED] > > > > > > - > -
