Dear Dialists,
thank you all for joining this list and for your contributions!
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- Daniel Roth, sundial mailing list
Welcome to the sundial mailing list!
Luke,
I believe this gnomonic progression is discussed in Robert Lawlor's Sacred
Geometry.
Fred
Oops, I gave a bad URL in my last mail...
Here's what Merriam Webster online has to say
http://www.m-w.com/cgi-bin/dictionary
I should have pasted
http://www.m-w.com/home.htm
My apologies,
Jim
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| Jim Cobb
Hello everyone,
Has anyone ever seen gnomon defined as such?
Almost two thousand years ago, Hero of Alexandria defined the gnomon as
that form which, when added to some form, results in a new form, similar
to the original. In a spiral seashell, for example, we see that each new
section
Message text written by Luke Coletti
Has anyone ever seen gnomon defined as such?
No, but the Greeks from the 3rd century BC and later the Romans, used the
term to refer to what we'd now call the gnomon's point rather than its
edge. I suspect that Ptolemy or Vitrvius defined it but cannot
Gnomon: From Pharaohs to Fractals. Midhat J. Gazale. Princeton U.
Press,1999.
This is a fascinating book: on gnomons as self similar spirals; the golden
mean, damped oscillatory systems, fractals, Fibonacci, and much more.
Unfortunately, the only section on sundials is p6-7: Egyptian sunclock of
