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Review title: NOT clock-accurate sundials
Product review: 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 ina chart. The "equation of time" is not built into thethe 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.
