From: Winston@Bigbrother.net   
      
   Jim Wilkins wrote:   
      
   (...)   
      
   > http://en.wikipedia.org/wiki/Total_internal_reflection   
      
   That makes sense.   
      
   > I've had an acrylic mirror outdoors exposed to rain (but not sun) for about   
   > ten years, and it's still in good condition. It was a truck mirror repair   
   > kit from WalMart.   
      
   The mirror - coated acrylic appears to be much flatter than the   
   uncoated stuff.  The reflection from the uncoated acrylic pieces   
   are highly distorted.  I don't suspect this matters much though.   
      
   Upthread, I conceded that a separate solar absorber box would   
   probably work very much better than my reflector idea did.   
      
   --Winston   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)