I think there's a simpler solution. In the UK at noon the shadow of the style on a horizontal sundial faces North - away from the sun. Turn the style through 180 degrees in a horizontal plane, and its shadow at noon will face South - towards the sun! John Lynes
On Mon, 11 Mar 2024 at 17:12, Bill Gottesman <billgottes...@gmail.com> wrote: > My guess on this one (without using mirrors): > Point the bottom of an empty can at the sun. The shadow inside the can > now points in the direction of the sun, though the definition of "in the > direction of the sun" in this case is debatable. > -Bill > > On Mon, Mar 11, 2024 at 9:33 AM Chris Lusby Taylor <clusbytay...@gmail.com> > wrote: > >> This reader has so far failed to see how a shadow can be in the same >> direction as the light source, if by that Frank means that it is between >> the object and the light. Perhaps Frank will enlighten us at next month's >> annual British Sundial Society Conference. >> >>> >>> Date: Mon, 11 Mar 2024 09:01:46 +0000 >>> From: Frank King <f...@cl.cam.ac.uk> >>> Of course, a shadow CAN be in the same direcion as the light. I'll >>> leave that as an exercise for the reader :-) >>> >> --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > >
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