Re: is the magnetic field really moving?

On Fri, 1 Aug 2008 11:09:33 +1000 Vince Morgan
<vinharAtHereoptusnet.com.au> wrote:
| 
| "Salmon Egg" <SalmonEgg@[EMAIL PROTECTED]
> wrote in message
| news:SalmonEgg-6A8353.18120930072008@[EMAIL PROTECTED]
|> > In article <g6ana402...@[EMAIL PROTECTED]
>, phil-news-nos...@[EMAIL PROTECTED]
|> > wrote:
|> >
|> > > Is the magnetic field really moving if the magnets move but the
field
| remains
|> > > the same?
|> >
| [snip]
|> > No! How would you go about checking for motion?
|> On the other hand, perform an experiment with a rotating nozzle on the
|> end of a hose. Does the column of water leaving the nozzle rotate with
|> the nozzle?
|>
| Acualy, yes, the water droplets have angular momentum if they interact
with
| the nozle boundaries, which they must to some extent.  And one could
expect
| a magnetic field to rotate via interaction with the magnets material in
| similar a veign.
| Not that I beleive that a magnetic field does rotate, but I do beleive
that
| is what is intuitively expected.  I'm sure Faraday was surprised.
| The fact that it appears that it doesn't rotate fascinates me.

Does the magnetic field of the Earth rotate with it?  One complication
with
examining that is knowing whether or not the source of the field (deep
inside
the Earth's core, I pressume) also rotates at the same speed/direction.

-- 
|WARNING: Due to extreme spam, googlegroups.com is blocked.  Due to
ignorance |
|         by the abuse department, bellsouth.net is blocked.  If you post
to  |
|         Usenet from these places, find another Usenet provider ASAP.    
   |
| Phil Howard KA9WGN (email for humans: first name in lower case at
ipal.net) |