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Sundials

Descriptions of these vertical post sundials, why they work, detailed account of the maths necessary to plot the hour lines.
http://www.plus.maths.org/
PageRank: Not available
Describes different types of sundials, has other technical and general information. Offers free Shadows software to compute sundials of a number of different types for anywhere in the world.
http://web.fc-net.fr/frb/sundials/defautgb.htm
PageRank: Not available
Software to design a vertical (wall mounting) sundial for walls that face up to 60 degrees away from due-south.
http://www.sunshadow.co.uk
PageRank: Not available
On-line catalogue, with facilities for search, adding records, map, statistics, articles and references.
http://au23.troja.mff.cuni.cz/~mira/sh/sh.php?lang=1
PageRank: Not available
A major information source, with projects, detailed technical information, links to related sites, listings of societies.
http://www.sundials.co.uk/
PageRank: Not available
Information on the society, links, beginner's pages, including simple sundial patterns and templates, online facilities to calculate hour lines for different sundial types.
http://www.sundialsoc.org.uk/
PageRank: Not available
Includes general information, links, a register of dials in North America, and a message board.
http://www.sundials.org/
PageRank: Not available