From: g_d_pusch_remove_underscores@xnet.com   
      
   Marc 182 writes:   
      
   > In article ,   
   > g_d_pusch_remove_underscores@xnet.com says...   
   >> zoltanccc@aol.com (Zoltan Szakaly) writes:   
   >>   
   >>> I have recently found out that a hamster was levitated by applying a   
   >>> strong magnetic field of 16 Teslas using a superconducting   
   >>> electromagnet.   
      
   >>> You could also use it compensate for the effects of acceleration.   
   >>> For example a car hitting a wall, could be equipped with a magnetic   
   >>> airbag that decelerates the people without harm to the internal   
   >>> organs.   
   >>   
   >> Again, it is not practical for object as large as a human being,   
   >> even in a one-gee field, let alone the peak of tens to hundreds   
   >> of gees experienced in an automobile collision. Furthermore,   
   >> even if sufficiently strong field gradients _could_ be produced,   
   >> the amount of stored energy in the field would be impractically   
   >> large. Still further, the inductance of the field coils will be   
   >> so large that it is utterly impractical to energize them with a   
   >> fast enough rise-time to offset the rate of onset of the collision.   
   >>   
   >> Finally, since the force is primarily exerted on soft tissues with   
   >> varying water contents, while bones are massive and do not contain   
   >> significant quantities of water compared to soft tissues, the   
   >> differential accelerations sustained by the various parts of the body   
   >> will still kill you.   
   >   
   > You missed one. In a collision things break. When your superconductor   
   > breaks all that magnetic energy has to go somewhere. In this case I'd   
   > expect a rather showy explosion.   
      
   Indeed --- you are quite correct.   
      
      
   -- Gordon D. Pusch   
      
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