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47 of 51 people found the following review helpful:
1.0 out of 5 stars
NOT clock-accurate sundials,
By Scot McDermid (Concord, CA USA) - See all my reviews
This review is from: Making a Clock-Accurate Sundial Customized to Your Location (for the Northern Hemisphere) (Paperback)
This book describes making a simple horizontal sun-dial witha angled gnomon (the shadow casting thingy). For "clock-accuracy" you have to look up an error offset in a chart. The "equation of time" is not built into the the design. The book intentionally skips over the mathematics involved. I found more information by searching the internet for "analemmic sundial" than I found in this book. |
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Making a Clock-Accurate Sundial Customized to Your Location (for the Northern Hemisphere) by Sam Muller (Paperback - September 11, 1997)
$8.95
In Stock | |
 
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