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    Re: Sextant calibration.
    From: Alexandre Eremenko
    Date: 2007 Apr 21, 00:38 -0400

    
    Frank,
    
    This is a wonderful method, indeed,
    but I have one question:
    How did Mendoza determine the true angles
    between the directions to these church steeples?
    Presumably by measuring the distances between
    those churches to the nearest foot.
    How did he do this?
    
    Perhaps I can use GPS to determine
    the position of the church
    steeples in Lafayette (we have more than enough of them)
    But even GPS does not measure this to one or two feet,
    even if I am permitted to climb every steeple.
    
    Or I have to depend on a theodolite
    to determine these angles from a fixed position?
    
    Alex.
    
    
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