From: martian@columbus.rr.com   
      
   Found it:   
      
   http://www.uoregon.edu/~rwh/physics/twoslit.html   
      
   But it seemed more interesting when I saw it on Nova... something about how   
   they would shoot a photon at some film that detects the photon hitting it.   
   Then, they'd block the photon and detect it shooting off at an angle, but   
   the photo film STILL registered a photon strike at the location it WOULD   
   have hit. Anyone know about this?   
      
   Jingo.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)