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    Re: Perpendicularity again. was: Adjusting Central Mirror
    From: Jim Thompson
    Date: 2004 Oct 12, 11:22 -0300

    Quite right: Bowditch article 1602.  I should have said, "limb", not "index
    arm".
    
    Jim Thompson
    jim2{at}jimthompson.net
    www.jimthompson.net
    Outgoing mail scanned by Norton Antivirus
    -----------------------------------------
    
    > -----Original Message-----
    > From: Navigation Mailing List onBehalf Of Herbert Prinz
    > Reading my own message, I see it needs a small correction.
    >
    > I quoted Jim Thompson by saying
    > > Jim Thompson was
    > > right on spot when he asked "Isn't that what twin cylinders are
    > for?  I assume that by
    > > lining up their tops as they sit on the index arm, the eye is
    > forced into the correct
    > > angle."
    >
    > Jim must have meant to say "sit on the limb". I took this so much
    > for granted that I did not
    > even notice his slip when I quoted him. And if I am mistaken, he
    > will correct me.
    
    
    

       
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