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    Re: Stereographic Devices
    From: Wolfgang K�berer
    Date: 2010 Apr 15, 08:10 +0200

    George said:
    
    "Yes. The oldest instrument of all; the astrolabe uses a stereographic
    projection."
    
    That's true. But the astrolabe was never used to solve the navigational
    triangle. And the Mariner's Astrolabe - which was used in navigation,
    indeed - is not engraved with the stereographic projection.
    
    Wolfgang
    
    
    
    
    
    

       
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