XPost: sci.space.policy, sci.physics   
      
   In sci.physics Serigo  wrote:   
   > On 10/12/2016 4:14 PM, Fred J. McCall wrote:   
   >> Serigo  wrote:   
   >>   
   >>>   
   >>> there may not be any coal or oil on Mars if no huge plants growing in   
   >>> its past like on earth. "=> no fuel on Mars"   
   >>>   
   >>   
   >> True, but your typical space colony won't be burning coal.  Methane is   
   >> easily produced.   
   >>   
   >>   
   >   
   > 1 how much methane does it take to generate 1 watt hour ?   
   >   
   > 2 how many watt hours does your computer take ? (assume you use it for 1   
   > hour)   
   >   
   > 3 how much poop does it take to generate the methane needed in 1 above ?   
      
   It would be silly to burn anything on Mars when there is no free oxygen.   
      
   Methane would be more useful as a seed product for making other things   
   such as plastics.   
      
      
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