Hi Roger Excuse me for not commenting on your wall declination recipe sooner, but it has been in the back of my mind. What do you mean when you say: "a convenient perpendicular". I'm having a hard time visualizing the envelope, the wall, the perpendicular and the sun. I'm assuming that these results let you use the solar azimuth/altitude formula that you use so often?
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: "Roger Bailey" <[EMAIL PROTECTED]> To: <sundial@rrz.uni-koeln.de> Sent: Tuesday, July 30, 2002 8:26 PM Subject: RE: wall declination recipes > I agree with Claude's comments "The many notes about this subject only > points out its importance" but we have to appreciate individual differences. > > I can put an old envelope against a wall or window, align the shadow of a > convenient perpendicular and check the time. This gives me everything I need > to determine the declination of a wall. But if you have not set your watch > by the atomic clock, read Bowditch before breakfast or Rohr before resting, > you cannot do this. You will need to follow a detailed incomprehensible > recipe. Miss one critical step and the project is a flop. > > My wife can go to the local market to buy what is in season, add from the > pantry "Je ne sais quoi" and create from scratch a gourmet meal. When in > the kitchen, I need to follow a detailed incomprehensible recipe. I am sure > to miss one critical step and the meal is a flop. > > We have different talents. "Vive la difference" even if it makes it hard for > us to market custom sundials. > > The wonderful feature of this mailing list is that we are from different > backgrounds, languages and cultures but we share this interest and > understanding of gnonomics. Amazing! > > Roger Bailey > Walking Shadow Designs > N 51 W 115 > > - > -
