XPost: sci.space.policy, sci.physics   
      
   In sci.physics Serigo  wrote:   
   > On 10/12/2016 7:03 PM, Fred J. McCall wrote:   
   >> Serigo  wrote:   
   >>   
   >>> On 10/12/2016 3:09 PM, Fred J. McCall wrote:   
   >>>> jimp@specsol.spam.sux.com wrote:   
   >>>>   
   >>>>> In sci.physics Fred J. McCall  wrote:   
   >>>>>   
   >>>>>    
   >>>>>   
   >>>>>> Really?  You think we breath NITROGEN?  Uh, no.  We just use the   
   >>>>>> oxygen.   
   >>>>>   
   >>>>> We use the oxygen but what we breath is 78% nitrogen.   
   >>>>>   
   >>>>   
   >>>> And what we breath out has the same amount of nitrogen in it, so you   
   >>>> don't need any more but to replace leakage.  And nothing says you HAVE   
   >>>> to use nitrogen for the inert component of atmosphere or that you have   
   >>>> to run 15 psi.   
   >>>>   
   >>>   
   >>> what else are you going to use ?  do you have any ideas ?   
   >>>   
   >>   
   >> You can use anything you like, as long as it's non-toxic.   
   >   
   > wrong criteria.  name a gas, and I will show you the problems with it.   
   >   
   >> Or you can   
   >> use nothing at all.   
   >   
   > you have to use something, nothing is pure O2 and that makes plastics   
   > into explosives.   
      
   Breathing oxygen in high concentrations is generally harmfull to humans.   
      
   http://www.sciencefocus.com/qa/why-does-breathing-pure-oxygen-kill-you   
      
   You HAVE to cut it with something.   
      
      
   --   
   Jim Pennino   
      
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