Obviously I shall offer my humble work "Illustrating Time's Shadow", my web 
site is a wealth of information, and by the way my appendices are free to 
downlaod, some 170 plus pages.
 
Since Rob, you are in Tucson, stop by Phoenix if you like and see what I have.
 
ALSO, Carl Sabanski's web site, the sundial primer, is excellent. And there are 
many other also.
 
Simon

Simon Wheaton-Smith
www.illustratingshadows.com
Silver City, New Mexico W108.2 N32.75 and
Phoenix, Arizona, W112.1 N33.5

From: Rob Seaman <[email protected]>
To: [email protected]
Sent: Tuesday, September 13, 2011 4:09 PM
Subject: sundial references?

Hi,

I've been rummaging through the archives and online, but it may be quicker just 
to ask.  What are the best sundial references (online or books), especially 
with regards to dials that read mean solar time?  Is there a history of 
sundials (or similar solar devices) being used for accurate and/or precise 
timing, especially for scientific purposes?  I can think of a thousand-and-one 
interesting question regarding these devices, but at the moment I'm interested 
in descriptions of how sun-driven clocks have been used for pragmatic daily 
purposes throughout history and all over the world.  Which is to say the 
pragmatic use cases and requirements for solar timekeeping.  (I live in 
Arizona, so sunshine is taken for granted ;-)

Thanks!

Rob Seaman
National Optical Astronomy Observatory
Tucson, AZ
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