[sdiy] MRI time dilation?

[danial stocks]

actually copper is diamagmetic.. ie antimagnetic.. where iron/ other ferrous 
stuff concentrates the magnetic flux, copper actually dialates it.. only a 
bit tho.. ie  a magnetic permeability slightly less than 1 [air, vacuum etc 
has magnetic permeability = 1.. iron and ferrites can have permeability 
figures up into 10's of 1000's].. of course, a flowing current will generate 
a magnetic field regardless of the nature of the conductor..
Cheers,
Dan

>from what I remember messing with the stuff as a kid, no.. copper and
>aluminum just do not conduct magnetic flux very well. The windings
>themselves can be copper or aluminum, but the flux that is induced should
>have a xfer material be ferrous to get good flux xfer ratio. There is
>actually charts that show the flux acceptance/reluctance for various
>materials.
>
>
>Rob
>
>----- Original Message -----
>From: "Theo" <t.hogers at home.nl>
>To: "Rob" <cyborgzero at home.com>; "Synth-DIY list"
><synth-diy at node12b53.a2000.nl>
>Cc: "ahot" <ahot at retrosynth.com>
>Sent: Sunday, February 18, 2001 10:35 PM
>Subject: Re: [sdiy] MRI time dilation?
>
>
> > Aah so you can't make a electromagnet or transformer out of aluminum or
> > copper wire?
> >
> > Theo
> >
> > >
> > > Okay, note: the block that is dropped is aluminum, not subject to
>magnetic
> > > effects.
> > >
> > >
> > > Rob
> >
> >
>

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