XPost: sci.space.policy, sci.physics   
   From: invalid@invalid.com   
      
   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 ?   
      
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