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Analemmatic sundials: How to build one and why they work
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Sundial program
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Submitted by
Anonymous
on March 21, 2012
http://web.utanet.at/sondereh/sun.htm
Here is a excellent program!
Charles Hatton
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Sundial program
http://web.utanet.at/sondereh/sun.htm
Here is a excellent program!
Charles Hatton