I would like to share what I have learned, and what I think the Magnetic Field is, the geometry of it, and some experiments to find out more about the Magnetic Field.
Again, I have covered much of this information in my PDF document: Guidelines to Bucking Coils
The following images show how I believe the Magnetic Field to be and its geometry when changing in Time:
Some simple experiments and some observations can guide these above conclusions:
Below, I tried to show, how the Magnetic Field lines shown by Ferro Fluid, are not as the Iron Filing Experiment shows, not looped back on themselves, but as Howard Johnson showed: (PDF attached below)
The best image I have found with Ferro Fluid is shown below:
The Magnetic Field is an Inverse Square Law Force Field, that means as distance is travelled away from the Source of the Magnetic Field, the Magnetic Field gets weaker.
Thomson's Model of the Electron Configuration
Corkes in water with Magnetic Needle attracted to a Solenoid Magnet.
The above very interesting experiment is from the following video: @39.38
It is well known in Science, that a long Solenoid has no Magnetic Field at all on the outside of the solenoid: @30:17
I think we need to see, the geometry of the Magnetic Field may very well not be what we have been taught in school, and in point of fact, many researchers have shown many experiments that question the Iron Filing Experiment:
PDF also attached below of the above image. Astro Physics also now agrees with this model of the Magnetic Field: interplanetary magnetic field (IMF)
Which explains this basic motor:
The problem that no one seems to realise with the Iron Filing Experiment is that Iron is Magnetic and like the Paper Clip Experiment, each paper clip will attract magnetically to the next.
What is the Magnetic Field, it is a Tornado of normally unfelt, undetected, Aether, the medium we swim in, Space Time, the medium that is universal, that carries Electromagnetic Waves, that propagate all the Fields of Nature. The medium which enables Light to travel. Quintessence, the fifth element.
When Technology works because you understand something, its a sure bet you understand correctly.