For a tropical dial, one could cast the gnomon onto a positive or
negative parabola - like a satellite dish - or any unique shape, in
order to extend the shadow image. Isn't there an optimal sundial design
for equator regions?One could construct a complex shape that would
be illuminated by
seems to me a polar dial would be ideal, and the thought of polar ice at the
equator could only but help:)
Simon
Simon Wheaton-Smith
www.illustratingshadows.com
Phoenix, Arizona, W112.1 N33.5
--- On Sun, 1/13/13, Tony Moss tonylindi...@talktalk.net wrote:
From: Tony Moss
Between the pole and the equator you can distinguish four types of polar style
sundials: the horizontal, the vertical, the equatorial and the polar sundial.
At the equator, there are only two types, as the horizontal and the polar
sundial are the same, and on the other hand the vertical and the
--
From: rPauli rpa...@speakeasy.org
Sent: Sunday, January 13, 2013 12:00 AM
To: Roger Bailey rtbai...@telus.net
Cc: h.sondereg...@utanet.at; sundial@uni-koeln.de
Subject: Re: Analemmatic sundial
Isn't there an optimal sundial design for equator
