Hi Chris,

OK Chris; I understand your point of view.  Its all interesting. I can't
definitely say I'll go further, but its possible in time.

Take care, Meredith

On Wed, Jun 4, 2008 at 5:42 AM,  wrote:

>  In a message dated 04/06/2008 03:42:49 GMT Daylight Time,
> paleoartifact@......... writes:
>
> I put up a illustration web photo and text page with two "imaginary ring
> magnets and a imaginary coil".  Initially the subject delved only with the 2
> ring magnets and a coil; but in two different polarity configurations.  In
> those 2 simple setup/s the question is, which would be better (?), as
> is;....and initially without regard to adding end plates and cores/iron
> rods/bolts.
>
> http://seismometer.googlepages.com/nssn
>
>  Hi Meredith,
>
>     The field  insi  de  an axially magnetised ring magnet, or inside a
> magnetised tube tends to lie almost completely outsiide the cyli  nder.
> There is VERY LITTLE field inside the cylinder itself.
>
>     The reason whhy I suggested placing two ring magnets end to end, is
> that this ~doubles the magnetising force which increases the field in the
> gap of the system that I proposed. Think of the magnets as tiny batteries in
> series and the field as electrical current in a poorly conducting fluid.
>
>     Regards,
>
>     Chris
>
Hi Chris,

OK Chris; I understand your point of view.  Its all interesting. I can't definitely say I'll go further, but its possible in time.

Take care, Meredith

On Wed, Jun 4, 2008 at 5:42 AM,  <ChrisAtUpw@.......> wrote:







In a message dated 04/06/2008 03:42:49 GMT Daylight Time, 
paleoartifact@......... writes:
I put up 
  a illustration web photo and text page with two "imaginary ring magnets and a 
  imaginary coil".  Initially the subject delved only with the 2 ring 
  magnets and a coil; but in two different polarity configurations.  In 
  those 2 simple setup/s the question is, which would be better (?), as 
  is;....and initially without regard to adding end plates and cores/iron 
  rods/bolts.

http://seismometer.googlepages.com/nssn


Hi Meredith,
 
    The field  insi  de  an axially 
magnetised ring magnet, or inside a magnetised tube tends to lie almost 
completely outsiide the cyli  nder. There is VERY LITTLE field inside the 
cylinder itself.
 
    The reason whhy I suggested placing two ring 
magnets end to end, is that this ~doubles the magnetising force which increases 
the field in the gap of the system that I proposed. Think of the magnets as tiny 
batteries in series and the field as electrical current in a poorly conducting 
fluid. 
 
    Regards,
 
    Chris