Making a Clock-Accurate Sundial Customized to Your Location (for the Northern Hemisphere)

Rating:
Summary: NOT clock-accurate sundials
Review: This book describes making a simple horizontal sun-dial with
a 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.

Rating:
Summary: NOT clock-accurate sundials
Review: This book describes making a simple horizontal sun-dial with
a 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.