An update on my earlier message. The dial is shown on p135 of the book Sundials of the British Isles.
John has telephoned to say that it is made of steel, and I will get more details when I see him at one of our meetings tomorrow.
Regards, Doug
On Sep 22, 2006, at 16:43, John Carmichael wrote:
Hello All (esp. sundial makers):
I need some help on something. (what else is new)...
I'm designing a huge horizontal dial for Cordera Elementary School in Colorado Springs. The face is 120' wide and the perpendicular gnomon will be 12' (3.65M) tall. I'd like to talk the builder into using a giant cone gnomon, but I have no idea how in the world you would construct one! I don't think I have ever seen a giant cone gnomon on a monumental sized sundial. Would it be easier to make it out of concrete poured in a mold, bent sheet metal or some other material? Any ideas Tony or anyone?
Maybe I could find a surplus rocket nosecone somewhere!
Do you think it would be really difficult and expensive to fabricate a giant cone?
If we can't use a cone, we will have to use a blunted pyramid (obelisk) instead.
thanks for any ideas,
John---------------------------------------------------
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