Resonating homopolar generator

[forest]

That would be too simple.What about "kicks" SM mentioned ? Apparently in homopolar generator there are no kicks required for operation. Unless "kicks" are the way to rotate magnetic field ?

[BEP]

@Spider

Imagine if the disc was either super, or semisuper conductive, say copper with a layer of oxide as pointed out by Michelino to me in a different thread?

This could be interesting, and the control setup for a parallel rotating field (field parallel to the toroid, instead of perpendicular) would just do the trick.

It doesn't matter whether the disc rotates, or the magnet on a homopolar generator. (someone asked) Faraday proved this along time ago, with his original experiments using a Faraday Disc Generator.

Paul Andrulis

@Pauldude000

I would like to find an example of the underlined above and a reproducible example of a rotating magnetic flux and or field. ( I don't mean switching the energy from one coil to another - not the same thing 

Also I'm now upset with Faraday. He solved his own paradox and didn't let me know

[TinselKoala]

@BEP:

http://magnetnerd.com/Neodymium%20Magnets/homopolar_motors.htm

http://www.mediafire.com/?tv3o955ylbx

[BEP]

@BEP:

http://magnetnerd.com/Neodymium%20Magnets/homopolar_motors.htm

http://www.mediafire.com/?tv3o955ylbx

@TinselKoala

I appreciate the links and info. Thanks. But try rotating a magnet around it's N/S axis with the target of generating a current in a disc or wire.... It won't work. Faraday had some explanations of why rotating the magnet instead of the disc would not generate potential.

You can spin a magnet so the positions of the poles alternate or move. This is used to generate potential or to make a motor shaft turn.

You can't rotate a magnetic field no matter what you do to the magnets. You will only spin the magnet. The field and the flux are not part of the magnet and are not attached to it no more than light is attached to a lens.

This is why you can make a whopper of a homopolar generator by sandwiching a copper disc between two magnets with the magnets attached so they must turn with the disc. Spin the magnets and the disc all together on the same shaft. You will build a potential from the shaft to the edge of the disc and have only one moving part (less all the brushes needed  ) The potential is built because the magnetic field remains fixed even though the magnets are spining.

I've built a few of them. Even though I know it is absolutely impossible to rotate a magnetic field, as described, I'm not dumb enough to believe I know it all. So if it can be done I would dearly love to see it and perform that feat myself.
That is 'rotating a magnetic field and/or flux around it's N/S axis' as opposed to an electric field, flux or plasma.

Sorry.... too wordy. No offense meant at all. You see, for me, hearing someone say they will rotate a magnetic field is like listening to someone drag their front teeth across a chalkboard.......  EEEK!

[TinselKoala]

@BEP: I see what you mean, yes. Of course the examples I gave don't rotate the field in the sense you mean. I agree mostly with your statements about the relation between the field and the magnet. But--a YouTube poster known as AdminOnDuty has posted an interesting experiment that seems to demonstrate "twisting" of the field, and photography of the solar surface near sunspots sometimes shows twisting and rotating field lines, and the earth's auroral displays sometimes seem to rotate, at least partially, and I believe that is an effect of the earth's field lines twisting. If the lines can twist and tangle, as they evidently can, could it not mean that a true rotating field might be achievable with the right geometry?