Richard, The Wikipedia entry is evidently describing the dial I introduced in a BSS article in July 1991 as The Equant Dial
A version is currently made by Bill Gottesman - see http://www.precisionsundials.com/equant%20dial.htm Fred Sawyer On Wed, Nov 16, 2011 at 4:31 PM, Richard Mallett <[email protected]> wrote: > The Wikipedia entry on Sundials describes a sundial that uses a cardioid > curve to convert solar time to clock time. Are there any known examples of > this ? > > -- > -- > Richard Mallett > Eaton Bray, Dunstable > South Beds. UK > > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
