From: address@is.invalid.retro.com   
      
   Op Wed, 17 Aug 2005 19:19:28 +0000, schreef Mikko:   
      
      
   > Why is that speed needed?   
      
   In simple terms: because otherwise the whole damned spacecraft falls   
   down, back to earth. It needs speed to constantly "escape" the tug of   
   gravity. It needs more speed the closer it is to the source of gravity,   
   and less speed if it can fly an higher orbit.   
      
   Very nice explanation here: http://en.wikipedia.org/wiki/Orbit   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)