I have had problems posting to the list in the last week or two--a real shame given the flurry of messages. It seems my compuserve account was switched to AOL without my permission, and this interrupted my list postings.
So here are some messages I had tried unsuccessfully to post this past week: ---------------------------- Does any one know a method of determining the declination of a wall by measuring the lenth of the shadow made by a carpenter's square? I think there is such a method, but can't recall where I saw it. Bill Gottesman Burlington, VT 44.4674N, 73.2027W --------------------------------------- John correctly notes that there is no agreed upon yardstick for determining sundial size. I propose a yardstick based on function. How about size being determined by the distance the shadow travels in 1 minute at noon on the equinox? Granted, not all dials show noon, but the vast majority do, and this would be a measurement of "time resolving power", of sorts. This ignores the ambiguities of the penumbra, but is a readily comparible and functional value dial to dial. Bill -
