My guess would be a north-facing wall on the Arctic Circle at the summer solstice, or a south-facing wall on the Antarctic circle at the summer solstice down under. John Lynes
On 14 June 2016 at 16:39, Frank King <[email protected]> wrote: > Dear Willy and Geoff, > > Good answers but the correct value > exceeds both your scores. > > Let's see who else will rise to the > challenge before I declare my hand! > > Frank > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > >
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