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    Re: Wandering Pole
    From: Brad Morris
    Date: 2016 Apr 27, 15:24 -0400

    There is a book called "Latitude" in which documenting the discovery of pole wander by  Chandler is made.

    I'll say it is half good.  The chapters alternate between a fanciful novel and historical documentation.  The historical documentation is very good!!  The novel, not so much


    On Apr 27, 2016 12:10 PM, "Hewitt Schlereth" <NoReply_Schlereth@fer3.com> wrote:
    A fine article indeed, Frank. Thank you.

    I particularly tickled me that the outlier sights (Kimura's) turned out to be the best.


    On Apr 27, 2016, at 7:58 AM, Frank Reed <NoReply_FrankReed@fer3.com> wrote:

    Here's a very nice article by science author Trudy E. Bell on the small-scale motions of the pole: http://tbp.org/pubs/Features/Sp16Bell.pdf (sample attached below). These phenomena are all much too small to affect traditional celestial navigation, but high-precision positional astronomy that tries to determine an observer's position with GPS accuracy does have to worry about these small details.

    Frank Reed
    Clockwork Mapping / ReedNavigation.com
    Conanicut Island USA

    PS: My position today: 45.204° N, 123.145° W

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