Re: Precision: the measure of all things

2015-07-28 Thread Michael Ossipoff
I should add: Didn't someone say that the oldest sundial known was a Chinese Equatorial Dial marked for Equal Hours? Anyway, in Europe, equal hours have been in use for, what, around 700 years? But, if I correctly remember what i read, Temporary Hours were in use in classical and ancient times,

Re: Precision: the measure of all things

2015-07-28 Thread Michael Ossipoff
(I should clarify again that, for clarity, I like to capitalize _kinds_ of whatever sort of thing I'm talking about...such as kinds of sundials or hour-systems, though I realize that that capitalization is probably not officially correct.) Another closely-related interesting question is the

Re: Precision: the measure of all things

2015-07-27 Thread Roger Bailey
Hi Dan, Don't worry, 60 is well represented in time and angular measurements. We have 60 minutes in an hour, 60 seconds in a minute, 6 x 60 degrees in a circle and again 60 minutes in a degree and sixty seconds in a minute. Why? Being highly divisible is only part of the story. Other parts