Dear Membership, Here is another email that appears to have not been copied to the list either.
Dear Luke, Thanks for your Info! I appreciate it! I was saying a more general statement, but your info reminded me of the article which I recall reading and which was a part of my thinking. What I'm saying ( if I can put it in the proper number of words ) Take any old dial or complex group of dials. Attach a temporary element that would be equivalent to a polar pointing gnomon at the site where the dial was designed to work. Point this temporary element at the north pole. Erect another temporary element parallel to the first one ( or use the first one ) and rotate the whole assembly around this element as an axis while it is kept pointing at the north pole. Keep doing this til the solar time reads correctly. It is now oriented properly and fully compensated for longitude, latitude, the equation of time, daylight saving time, etc. ( Of course it might be upside down and not recieve any light if origonally designed in the other hemisphere ). These temporary elements could be say, 20 feet away from the actual dial, if attached firmly to it. I will leave the proof of this to the reader ... ( for now ) Edley. Date sent: Tue, 18 Dec 2001 13:20:12 -0800 From: Luke Coletti <[EMAIL PROTECTED]> To: Edley <[EMAIL PROTECTED]> Subject: Re: Sundial Corrections > Edley, > > Congratulations and yes, for a sundial with a polar aligned gnomon > rotation about it (the gnomon) will effect the correction(s) you > mention. There is an article about such a sundial constructed at the > Univ. of Indiana (if memory serves) and I will send the reference > (Sky&Tel - I think) to you later on this evening. The mechanism was > quite ingenious. > > Best, > > Luke Coletti >
