Group: sci.physics.electromag
From: Benj
Date: Tuesday, March 04, 2008 1:06 AM
Subject: Re: Magnet Question...Benj piggy backs a discussion on Unlce Al's stories...

On Mar 3, 7:57 pm, "FrediFizzx" wrote:

> > 2. What "basic observation" can you cite that proves that, for
> > instance, an E field CAUSES an H field?
>
> The fact that electro-magnets work.

Sorry Fred. Bill is talking about free space, not inside material
devices.

And the key Jefimenko point is that if two fields occur simultaneously
(say E and H) then by definition it is impossible for one to be the
CAUSE of the other.