sean
----- Original Message -----
From: "Hans von Lieven" <hans@usenet.com.au>
To: <interact@keelynet.com>
Sent: Wednesday, March 08, 2000 7:46 PM
Subject: magnets
> Sorry guys,
>
> Jerry Decker is quite correct that if you want to make a magnet with resin
and iron filings for instance, you make a
> mold, fit the core magnet in its place and pour the resin with the iron
filings into the reserved spaces. This will align
> the filings correctly in relation to the magnetic field before the resin
sets.
>
> Sorry about the omission.
>
> Incidentally, Jeremy's idea of using an electromagnet to determine the
wanted shape is excellent and useful. This
> way you can experiment easily with shape and field strength before
committing yourself to a lot of work creating a
> custom permanent magnet, only to find out it doesn't work.
>
> Well done Jeremy
>
> Hans
>
>
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