NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Chasing tenths of an arc minute
From: Richard Reed
Date: 2010 Mar 12, 16:29 -0800
From: Richard Reed
Date: 2010 Mar 12, 16:29 -0800
No, I didn't mean that. The one I saw seems to be arc-vernier like everything else until 1908. The screw adjuster 'micrometer' is an interesting idea, but I can't see how it achieves better accuracy. Like other screw adjustments, touches might be easier and/or faster.
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