From: g_d_pusch_remove_underscores@xnet.com
Mike Ackerman writes:
> "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?
Not if you hold your head still --- which they tell you to do anyway
if they are imaging your head...
> What I found most interesting about diamagnetic levitation of li'l
> critters is that their diamagnetic component (oxygen, I suppose)
Nope. Just water. Good'ol garden-variety H2O.
> overwhelms the ferromagnetic component from the iron in their blood.
The iron in blood is always in an oxidized state. It isn't ferromagnetic.
> Though I shouldn't be surprized... recall Magneto's escape from his
> plastic prison in Xmen 2.
It is =NOT= a good idea to draw conclusions about real physics
from Hollyweird Fantasy pseudo-physics, as they are almost always
"not only not right, but not even wrong."
-- Gordon D. Pusch
perl -e '$_ = "gdpusch\@NO.xnet.SPAM.com\n"; s/NO\.//; s/SPAM\.//; print;'
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* Origin: you cannot sedate... all the things you hate (1:229/2)
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