NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Geeks [slide] rule!
From: Lu Abel
Date: 2013 Mar 31, 09:47 -0700
From: Lu Abel
Date: 2013 Mar 31, 09:47 -0700
Not necessarily, if all elements of the rule expand and contract identically. Remember, slide "rules" aren't measuring distances, but simply comparing numbers etched on two different scales. If both scales expand and contract identically, there's no loss of accuracy.
From: Geoffrey Kolbe <geoffreykolbe@compuserve.com>
To: luabel@ymail.com
Sent: Sunday, March 31, 2013 5:41 AM
Subject: [NavList] Re: Geeks [slide] rule!
Gary wrote:
World's longest slide rule is now 350 feet, 6 1/2 inches set in 2001.
I would imagine that temperature variations could well be the main limits of accuracy with such an instrument.
Geoffrey: http://fer3.com/arc/m2.aspx?i=123226
