THE EQUATION OF TIME:   Graph

PHOTOGRAPHY
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DOF- Graphic Presentation   2D   /  3D
Finding NORTH  (1) , (2)
Various
THE DECLINATION OF THE SUN: Graph
SUNDIALS
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Updated June 14, 2009
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Photography
Astronomy
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Various
LATEST UPDATE: May 19, 2011
20-10-2009

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Revised 16-06-2010
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