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    Re: Trombone Kamal Prototype
    From: Andrés Ruiz
    Date: 2009 Jun 5, 09:38 +0200

    Very interesting Greg,
    
    
    It may be use a welding glass filter for the kamal, I use it for my bris 
    sextant. For security, to protect our eyes.
    
    A document about the accuracy of the kamāl can be found at:
    http://ckraju.net/IndianCalculus/Education/Kamal_pages.pdf
    http://ckraju.net/IndianCalculus/sample_pages.htm
    
    Andrés Ruiz
    Navigational Algorithms
    http://www.geocities.com/andresruizgonzalez
    
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