SunGraph

2000-07-19 Thread Roger Bailey
The August Sky and Telescope mentions an addition to Robert Urshel's wonderful Analemma site http://www.analemma.com Go to Other Phenomenon and download SunGraph. This program produces a graph of the sunrise and set through the year for the location you specify. It clearly shows the equation of

RE: Nought at noon

2000-07-19 Thread Andrew James
Steve, Bob, and everyone, I do not think I have ever seen 0 on a sundial, nor on a clock. I seem to remember a sundial which had an Arabic 12 with all other numerals Roman - or was it vice versa? - but cannot think where. I would say that in England the simple cross + or cross pattee (more

RE: Nought at noon

2000-07-19 Thread T. M. Taudin-Chabot
I do not think I have ever seen 0 on a sundial, nor on a clock. I seem to remember a sundial which had an Arabic 12 with all other numerals Roman - or was it vice versa? - but cannot think where. a 0 together with roman numerals doesn't sound logic: the romans did not know the number 0 !

Re: Sundials in Vancouver?

2000-07-19 Thread Bob Haselby
Michael Koblic wrote: - Original Message - From: Bob Haselby [EMAIL PROTECTED] To: Clem Padin [EMAIL PROTECTED] Cc: sundial@rrz.uni-koeln.de Sent: Monday, July 17, 2000 10:10 AM Subject: Re: Sundials in Vancouver? Clem Padin wrote: I'll be traveling to Vancouver in a

RE: Nought at noon

2000-07-19 Thread Roger Bailey
At 10:40 AM 7/19/00 +0100, Andrew James wrote: Steve, Bob, and everyone, I do not think I have ever seen 0 on a sundial, nor on a clock. The dial on my deck rail has a nought for noon. It is a standard garden shop horizontal dial, a cheap imported brass casting given to me years ago by a