From: maury_markowitz@hotmail.com   
   Copy: sci-space-science@moderators.isc.org   
      
   Shadowmega@rcn.com wrote:   
   > Heat is defined as the vibration of molecules right?   
      
      No. Heat is the average randomized kinetic energy per volume.   
   Vibration of molecules is one such form of energy, but there are many   
   others.   
      
   > Well how does heat then travels through a vacuum?   
      
      It doesn't. Something else, say light, does travel through the   
   vacuum.  When it arrives it reacts locally, say with the dirt, and is   
   converted into heat.   
      
      Consider how your stove works. You apply electricity and out comes   
   heat. Electricity is not hot, in fact it is rather ordered, and thus   
   very "cool". So electricity is not heat, nor is light, nor are lots of   
   things that can be _turned_into_ heat.   
      
   Maury   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)