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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The Bygrave Slide Rule
From: Douglas Denny
Date: 2009 May 30, 15:27 -0700
From: Douglas Denny
Date: 2009 May 30, 15:27 -0700
I have been asked By Peter Martinez to send the image of the Aquino's Log Tangent/Log Secant Method. Bygrave's Slide rule appears to be a mechanical implementation of this method. Douglas Denny. --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
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