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   sci.space.science      Space and planetary science and related      1,217 messages   

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   Message 281 of 1,217   
   Paul F. Dietz to Henry Spencer   
   Re: Sonic boom, Light Boom?   
   26 Nov 03 06:34:19   
   
   From: dietz@dls.net   
      
   Henry Spencer wrote:   
      
   >>The density of the ISM is on the rough order of an atom per cubic centimeter.   
   >   
   >   
   > No, that's an old number.  The "Local Cloud" in which we sit is about   
   > 0.07 atom/cc, and the "Local Bubble" outside that (several hundred LY   
   > across) is down around 0.005 atom/cc.   
      
   That's why I said 'rough order'.   
      
   	Paul   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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