From: christopher@librehacker.com   
      
   Hi, I am playing around with model spring-mass-damper systems on my   
   analog computer. I was wanting, for comparison purposes, to make an   
   actual system with a spring and a mass. But I am a little confused how I   
   would know what the damping coefficient and spring coefficient is for   
   any given spring, as that doesn't seem to be listed for any springs I   
   can purchase on the Internet. Is there some catalog of springs out there   
   that lists those coefficients, or a way to calculate them from some   
   other listed parameter, or a practical way to measure them?   
      
   --   
   Christopher Howard   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)