XPost: sci.physics, sci.space.tech   
   From: glhansen@steel.ucs.indiana.edu   
      
   In article ,   
   George Kinley  wrote:   
   >Hi,   
   >if there is no Atmosphere, where do rockets that go in Space get thrust from   
   >   
   >   
      
      
   >From the engine.   
      
   Combustion creates pressure inside the engine, which pushes against all   
   the walls, and against the front... except there's a big hole in the back,   
   so nothing presses against the back.   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)