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    Re: The Sun does not stop for anyone
    From: John D. Howard
    Date: 2016 Dec 30, 07:17 -0800

     Gary,

    Back in the 60s and early 70s we would program computers to give a good approximation of a analog process using digitial ( Booleain ) mathamatics.  We produced very close results.  We could solve calculus equations not by using calculus but by approximating with digitial math.

    I think what Bowditch, Dutton, et all are saying is " You can draw a chart that on a small scale - and small scale only - that LOOKS like the martime chart that you are used to. "

    The UPS has the same Latitude scale ( NM per inch ) at 10 degrees north and at 50 degrees north.  A Mercator chart does not.

    John H.

       
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