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 >> >> Drive your electric car every second day and recharge it from solar >> panels on your roof on the alternate days. >> The other days, drive your spouses car, and do the same with it. >> >>
