John Carmichael wrote:
It no longer is there [Nun Appleton Hall] and I don't know when it was
removed. It now resides in lightbox for display at entrance to York Art
Gallery.
And p.s. Do they allow people to visit that vestibule area?
Last time I was in York (August 2007) it was no longer on
Dear all,
still about reverse engineering of old dials :
1. I have corrected the help file as some pages were still in Italian. New
version is 16.3.
2. I have translated a presentation of Orologi Solari to English : the last
section is related to the reverse engineering feature, it also
I'm grateful for the generous reception you gave to my last contribution to
this thread. Here belatedly is another possible solution, less impractical but
more complex than my last effort.
Imagine a North-South meridian line on flat ground. On this line place a thin
flat vertical mirror -
Nice job. Original, adaptable. I suspect it can be modified to apply
to a larger scope of dials than just analemmatic. Not sure the public
would go for it aesthetically, but I admire the concept.
-Bill Gottesman
John Lynes wrote:
I'm grateful for the generous reception you gave to my last
Very neat John!
But I don't think it works. Not even if south-facing.
The problem is that you are halving the angle through which you turn the
dial. That affects the geometry of the elliptical dial. You can't just
renumber the hour marks. The sun's azimuth (measured from south) at 2pm is
not
On Wed, Jun 25, 2008 at 11:01 AM, Chris Lusby Taylor
[EMAIL PROTECTED] wrote:
Very neat John!
But I don't think it works. Not even if south-facing.
The problem is that you are halving the angle through which you turn the
dial. That affects the geometry of the elliptical dial. You can't just
