Re: is the magnetic field really moving?

On Tue, 5 Aug 2008 15:10:39 -0700 (PDT) Benj <bjacoby@[EMAIL PROTECTED]
> wrote:

| On Aug 5, 2:20?am, phil-news-nos...@[EMAIL PROTECTED]
 wrote:
| 
|> This is because we have those hookup wires crossing the extraneous
field.
|> A modification of the disk design can avoid this.
| 
| This is exactly the problem! You THINK you can, but the more you try
| things the more you realize you can't!  In fact, trying to do this has
| led some researches to formulate a "law" that says if you have a
| closed loop you can't tell if the field rotates or not.

Then consider the modification.  Note that the modification _depends_ on
the
magnets being rotated with the disk.  So it isn't something that can test
whether the case with stationary magnets will work.  But it can test of
the
magnets that rotate with the disk will work.

The modification keeps the magnets and the closed loop always in an
alignment
with the disk rotation to generate any potential in the same direction
around
the closed loop.  Where the loop runs from inside to outside, the magnets
are
oriented one way.  Where the loop runs from outside to inside, the magnets
are oriented the other way.

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