From: smithm@SPAMBLOCKnetapps.com.au.retro.com   
      
   On Thu, 13 Jan 2005 22:28:45 GMT   
   "Jim"  wrote:   
      
   > I have no one to ask this question of, so seems the Usenet might work   
   > ;-) Does anyone think that it might be possible to surround a vehicle   
   > with sodium ions held in place by their charge and a magnetic field   
   > (Generated by the vehicle) as a form of shielding for a long term   
   > journey?   
      
   I have heard it said that the mass of hardware needed to generate the required   
   magnetic field would on its own provide a pretty good shield.   
      
   I am not sure what part the sodium ions would play in this scheme. Surely the   
   magnetic field is the bit which interacts with the incoming particles?   
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   Michael Smith   
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