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   sci.optics      Discussion relating to the science of op      12,750 messages   

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   Message 11,320 of 12,750   
   Helpful person to All   
   Re: aplanatic cardoide refraction   
   03 May 13 06:29:25   
   
   a8297af2   
   From: rrllff@yahoo.com   
      
   On May 3, 5:00 am, Narasimham Gudipaty    
   >   
   > Thanks Sam. Fermat time minimization could help set up the Cartesian oval's   
    differential equation. In this connection,is it possible to get or see   
   Newton's work involving bi-normals mentioned in Wikipadia?   
   >   
   > Narasimham   
      
   I don't have it with me but I believe there is a good description in   
   Born and Wolfe.   
      
   http:..www.richardfisher.com   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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