From: mackermNOSPAM@mailpuppy.com   
      
   "Gordon D. Pusch" wrote:   
   > Keith Harwood writes:   
   > > Paul F. Dietz wrote:   
   > >>  Keith Harwood wrote:   
   > >>>  Zoltan Szakaly wrote:   
   > >>>   
   > >>>> You could create a bed that levitates you and so it is   
   > >>>> more confortable than the usual foam stuff.   
   > >>>   
   > >>>  So long as you don't have fillings in your teeth.   
   > >>   
   > >>  Fillings?  This isn't inductive.   
   > >   
   > > It is when you are moving into or out of the field, or if   
   > > you are already in place, when the field is turned on or   
   > > off. Even for the quite modest fields available from iron   
   > > magnets small, slow movements in a static uniform field can   
   > > heat fillings enough to crack teeth.   
   >   
   > ...And even without fillings, the EMF induced by too-rapid head-movements   
   > in a multi-tesla field can do, uh, _interesting_ things to your brain...   
      
   Should people be wary of MRI machines?   
      
   What I found most interesting about diamagnetic levitation of li'l   
   critters is that their diamagnetic component (oxygen, I suppose)   
   overwhelms the ferromagnetic component from the iron in their blood.   
   Though I shouldn't be surprized... recall Magneto's escape from his   
   plastic prison in Xmen 2.   
      
   Mike Ackerman   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)