XPost: sci.space.policy, sci.physics   
   From: tkoenig@netcologne.de   
      
   JF Mezei  schrieb:   
      
   > Say I went on a camping trip to Mars. Would my tent widstand the winds ?   
   > (higher winds but thinner air).   
      
   No problem.   
      
   Wind speeds measured by Viking were around 30 m/s.  Density of mars   
   atmosphere is around 0.02 kg/m^3.  This gives you a dynamic pressure   
   of around 9 Pa, or 9 Newton per m^2.   
      
   On earth, usual atmospheric density is around 1.2 kg/m^3.  To get   
   to the same dynamic pressure, you would have a wind speed of a   
   bit less than 4 m/s, which is in the range for Beaufort 3.   
      
   So, literally a gentle breeze.   
      
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