As most might know, in physics we only know force fields. Thus so called
field lines (magnet field) are equipotential cuts of the space covered
by fields. Of course you never can draw such a line as all sources are
in constant motion/rotation.
The static magnetic field is a special case as it is a part of the atoms
mass that form out the field. This field is attached but with the same
restrictions as above. The only real "energy" field is the EM field
produced by an active sender. Here of course no stable lines occur -
only in case of a cavity with a sender-resonance we call receiver.
Key is the understanding that in physics a field must have a source and
a sink. From this point of view most so called mathematical physics
(tensor...) field theory simply is nonsense.
There are far to many simplifications in physics models as historically
only point field equations could be solved. As a consequence of this,
one thing most did miss is: Total potentials almost never are 1/r.
Total because we no longer deal with a single point....
J.W.
On 14.03.2024 16:02, H L V wrote:
Another visualization of the behaviour of magnetic fields without the
concept of lines of force.
When the magnet is moved around it simply changes the orientation of
all the little compass needles.
The notion of lines of force tends to make one think the magnetic
field is somehow mechanically
attached to the magnet so that the centre point of each needle must
change position in order to match
the motion of the magnetic.
https://www.youtube.com/shorts/HTylDaG5_RY
Harry
On Wed, Mar 6, 2024 at 11:16 AM H L V <hveeder...@gmail.com> wrote:
Here is a physical demonstration of the situation using a ferrofluid.
https://www.youtube.com/watch?v=Bn41nPOGq-U
The ferrofluid does not rotate with the cylindrical magnet,
which supports the idea that the magnet's field does not rotate
with the magnet.
(There is a little bit of movement but the narrator explains that
this movement arises from the field not being
perfectly symmetrically.and homogeneous).
Harry
On Wed, Mar 6, 2024 at 12:40 AM H L V <hveeder...@gmail.com> wrote:
It depends what you mean by a field. If you imagine the field
is made of wire-like filaments which are fastened to an atom
then you would expect the field to translate and rotate
whenever the atom translates and rotates. On the other hand if
you imagine the field is a vector field then the field never
really needs to move. Instead the direction of the magnitude
of the vector at each point in space updates as the atom moves
through that vector space. The way the vector field changes as
the atom rotates and translates gives the appearance of a
field that is moving as if it were fastened to the atom.
Harry
On Tue, Mar 5, 2024 at 1:41 PM Robin
<mixent...@aussiebroadband.com.au> wrote:
In reply to H L V's message of Tue, 5 Mar 2024 09:28:31
-0500:
Hi,
You don't need an experiment to figure this out. The field
obviously rotates with the magnet.
This is because the field is not a single entity. It is
the sum of all the tiny fields created by the electrons
attached
to individual atoms, so when the magnet rotates, the atoms
all move, taking their individual fields with them. We know
they do this because when the magnet is moved sideways,
instead of rotating, the field moves sideways as well.
IOW, the
atomic fields are attached to their individual atoms.
There is no reason this should change when rotation is
involved
rather than translation.
[snip]
>Resolving the paradox of unipolar induction: new
experimental evidence on
>the influence of the test circuit (Free to download.
Published 2022)
>https://www.nature.com/articles/s41598-022-21155-x
Regards,
Robin van Spaandonk
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from solar panels on your roof on the alternate days.
The other days, drive your spouses car, and do the same
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