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    Re: Sextant Davis
    From: Dave Weilacher
    Date: 2000 Dec 11, 6:02 AM

    but why is Guillaume having the problem that he described? It should be
    possible to aim the sextant at the sun (when set to zero) and to determine
    the altitude.
    
    Because this is how you fry your retina.  If you look at the sun with a 4
    power scope, it happens immediately.
    
    The mariners of old didn't wear eye patches because they poked their eyes
    out on swords etc.  They wore them because constantly taking noon sights,
    dimmed their vision so much that they wore patches to save what vision they
    did have left.
    
    Dave W.
    

       
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