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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Making an artificial horizon
From: Gary LaPook
Date: 2011 Jan 21, 00:58 -0800
From: Gary LaPook
Date: 2011 Jan 21, 00:58 -0800
I have only 8 ounces of mercury and it makes a puddle about two and a half inches in diameter. I placed a cardboard stop over it which cuts the viewing area to two and a quarter inches. Due to the small size the field of view is narrow and it helps to be close to the bowl, say about a meter, and it is good to have something to rest the back of your head against to keep it in the correct position. You can make a bigger enclosure for an artificial horizon which I was planning to do to make it more convenient to take sun sights with a bowl of water. I bought two larger pieces of glass, 8 by 10, for about eight dollars each and may make a bigger one in the future. gl --- On Thu, 1/20/11, George Huxtable <george@hux.me.uk> wrote:
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