From: remyv@globetrotter.net   
      
   Del Cotter wrote:   
      
   > On Fri, 23 Jul 2004, in sci.space.tech,   
   > Renee Keller  said:   
   >   
   >>"sanman"  wrote in message   
   >>> Apparently, some researchers have found a way to turn pure Zirconium   
   >>> into a bulk metallic glass by using tremendous pressure. Right now, it   
   >>> only seems to work with high purity Zr.   
   >   
   >>Have you ever seen "Privacy Windows"?  These are glass that when an   
   >>electric current is passed through them, the electrons all line up and   
   >>make it transparent.  Otherwise they are opaque.  So could something   
   >>similar be done with other materials?   
   >   
   > Metallic glasses are never transparent, they still have the opacity and   
   > shiny surface you would associate with metals.  It's the highly mobile   
   > electrons that do that, and that doesn't change whether the material is   
   > crystalline or amorphous.   
   >   
   And there I was, Googling for transparent aluminum... -sigh-   
      
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