From: tkoenig@netcologne.de   
      
   David Ellis  schrieb:   
      
   > Of course, at its core, a nozzle is a device--or, I suppose more   
   > appropriately, a structure--along a flow channel that converts the   
   > enthalpy of a fluid (ie, the energy represented by the combination   
   > of temperature and pressure) into kinetic energy in one direction.   
      
   Kinetic energy has no direction, it is a scalar quantity.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)