From Newsgroup: alt.tv.star-trek.tos   
   From Address: r_delaney2001@yahoo.com   
   Subject: necessity is the mother of invention   
      
   So I was watching an old Star Trek, Kirk is marooned   
   in a desert (looks like New Mexico), battling a gnarly   
   alien.  He jerry rigs a howitzer, then gathers up   
   minerals, and mixes them to manufacture   
   gunpowder.  Of course. he flattens the alien on   
   his first shot, and the galaxy is saved.   
      
   Anyhoo, is that plausible, could one make   
   gunpowder in a survival situation like that?   
   With no chem lab equipment?   
      
   --   
   Rich   
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