Re: Retarded propagation of magnetic field leads to contradiction
From: Eugene (eugenev_at_synopsys.com)
Date: 07/30/04
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Date: Fri, 30 Jul 2004 02:22:25 -0700
Dirk Van de moortel wrote:
>>>
>>
>>There are no accelerated frames here. I am observing
>>all this from my reference frame at rest.
>
>
> "If the magnet starts to move then..."
>
> Maybe you should learn basic mechanics before
> you break your teeth on electromagnetism and
> relativity.
>
> Dirk Vdm
>
>
Probably I should have better explained my terminology. In my book
reference frame is associated with observer or measuring apparatus.
Magnet is not an observer. Of course, we can associate an observer
with the
magnet, and this observer (reference frame) will be accelerated.
But I don't do that, because I am not interested in measurements of
such an observer. I am interested in my measurements from the reference
frame at rest, where I am measuring objects like magnet or wire loop.
If we do not allow accelerated movements of objects, e.g., of the magnet
or electrons in the wire, then we disregard interactions. But that's
exactly what we want to describe in physics. Without interactions
physics is trivial.
Regards.
Eugene.
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