From: r_delaney2001@yahoo.com   
      
   I atended a presentation of the LIGO discovery last week,   
   by the lead engineer on the interferometry, the limiting   
   factor on the whole shebang   
      
   At conclusion, he forecast a schedule of long term performance   
   improvements.  One of these, 10 years out, is the use of silicon,   
   or silicon oxide, mirrors.   
      
   What's the advantage of this material?  And what are they using now?   
      
   --   
   Rich   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)