Mac, I would love to see these scanned images (if my box can handle
them).
Charlie
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Date: Mon, 8 Oct 2001 11:33:17 -0400
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From: Mac Oglesby <[EMAIL PROTECTED]>
Subject: Dials using unfolded analemmas
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Hello fellow sundial lovers--
The September issue of the Bulletin of the British Sundial Society
contains (pages 127-9) an article by Herbert Wright detailing how he
designed and constructed, while interred in a Japanese prison camp in
Lunghua, China, a marble sundial which uses unfolded analemmas to
display clock time. Mr. Wright overcame enormous obstacles in
creating his dial, and it took him more than a year. The dial is
dated 1944, as far as I can tell. I have a scanned image of the dial
available upon request. It's an 80k JPG file.
Prior to seeing this article the earliest use of unfolded analemmas
for EoT correction I had run across was a dial visited in Montreal
during the 2001 NASS conference. A monumental equatorial sundial
(1967) at the Planétarium de Montréal by Herman van der Heide, of The
Netherlands, utilizes unfolded analemmas along its equatorial band.
A nice touch on this dial is the use of different colors to aid the
eye in following the date arcs. I have a 44k JPG file of this dial
available upon request.
My questions to Sundial List members: Do any of you know of an
earlier (than 1944) dial using unfolded analemmas to supply the EoT
correction, or of early published material concerning this? Is it
known who was responsible for discovering the principle?
Best wishes,
Mac Oglesby
Brattleboro, Vermont USA
