XPost: sci.space.policy, sci.physics   
   From: invalid@invalid.com   
      
   >>   
   >> what else are you going to use ?  do you have any ideas ?   
   >>   
   >> N2 is the only practical one.   
   >>   
   >> and you have to take a lot of it,   
   >>   
   >> all in *high pressure heavy* tanks.   
   >>   
   >> do you have an alternate inert gas in mind ?   
   >   
   > Yes, already tested.   
   >   
   > Actually, look at the Skylab atmosphere.  It used a a 74-percent oxygen   
   > and 26-percent nitrogen breathing mixture at a mere 5 psi instead of the   
   > "normal" 14.7 psi, which is earth sea level pressure.   
   >   
   > http://history.nasa.gov/SP-400/ch2.htm   
   >   
   > Jeff   
   >   
      
   Great, that problem solved.   
      
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