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

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   Message 140 of 1,217   
   Henry Spencer to Gordon D. Pusch   
   Re: Surface Water Possible Under Mars-Li   
   21 Sep 03 01:28:48   
   
   From: henry@spsystems.net   
      
   In article ,   
   Gordon D. Pusch  wrote:   
   >> ...I think it would be quite a trick to get measurements of   
   >> things like this in the time available.   
   >   
   >Moreover, there is ABSOLUTELY NO REASON to believe reduced gravity should   
   >have any effect on the evaporation rate of water, any more than it would   
   >affect the boiling point or freezing point of water.   
      
   It wouldn't affect the fundamental evaporation rate, given the scale at   
   which that operates, but it conceivably might affect convection phenomena,   
   and they determine what relative humidity a given evaporation rate will   
   produce in the near-surface air... which in turn affects the evaporation   
   rate.  That is, at the level of the whole system, it might have some   
   effect.  But there is a point where you just have to say "that is too   
   much trouble to try to allow for right now"...   
   --   
   MOST launched 1015 EDT 30 June, separated 1046,         | Henry Spencer   
   first ground-station pass 1651, all nominal!            | henry@spsystems.net   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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