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: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, June 16, 2002 10:34 AM Subject: Dial Size > John could you post this to the list? For some reason my emails are not > being posted. Anyone who might know why-I'd appreciate knowing. > ------------------------ > John correctly notes that there is no agreed upon yardstick for determining > sundial size. I would 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 > -
