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Shadows of Time Short Essay on Sun time by J. Rienhardt
NASA Sundials http://liftoff.msfc.nasa.gov/Academy/Earth/Sundial/Sundial.html
Sundial projects from Harvard, all ages http://hea-www.harvard.edu/ECT/Stick/stick.html
NOAA National Geophysical Center, find magnetic declination http://www.ngdc.noaa.gov/seg/geomag/jsp/struts/calcDeclination;jsessionid=91A4DEBB40DCA47E9E9B006565124F36
Sundial Primer http://www.mysundial.ca/sdu/sdu.html
North American Sundial Society http://sundials.org/
Cadrans-Solaries http://perso.wanadoo.fr/blateyron/sundials/gb/index.html
