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<<If you go to Mike Shaw's page http://www.wiz.to/sundials/ and
click on "more favorites" I think that the Sir Isaac Newton dial shown there us
using the index finger as a gnomon with the "book" as the
dial.>>
Not quite.
John Davis' dial shows Isaac Newton holding a
triangle (representing a prism) with a hole in the centre which projects a spot
of light onto the dial face.
By coincidence, just above the picture is a "John
Carmichael", and just below it is an "Aten"
Mike Shaw
53.37N
3.02W |
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