Hi Jim, The obvious answer, of course, is the universal equinoctial ring dial, as invented (?) by William Oughtred. It finds its own vertical and meridian, is adjustable for latitude, folds up for easy stowage etc etc. But perhaps this isn't what you meant... Regards, John -----------------------------
"J. Tallman" <[EMAIL PROTECTED]> wrote: Hello All, Has anyone ever seen a sundial specifically designed for use on a boat or ship? I realize that there are obvious issues re: movement and variable location, but I thought it might be an interesting question for the list to consider from the historical perspective... Best, Jim Tallman www.artisanindustrials.com [EMAIL PROTECTED] --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
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