Homopolar torqueless gear generator.

[exnihiloest]

...
http://www.rialian.com/rnboyd/obvious-flaws-relativistic-electrodynamics.htm
...

Robert Neil Boyd confuses EM waves whose the traveling electromagnetic energy is directed by the Poynting vector, with static or quasi-static fields of a rail gun in which energy doesn't flow.
He mixes anything and everything. He doesn't properly apply the equations. The flaws he saw are only his misunderstanding.

[Liberty]

Hi Liberty,

You are right, it works. The explanation by the crossing of flux lines is correct, nevertheless it is more a calculus method than a physical theory, for several reasons.
- the "flux lines" represent nothing else than theoretical lines along which the intensity of the magnetic field is constant (we could name them "magnetic geodesics"). There are no real lines.
- we have to account for a surface enclosed by the circuit and through which the flux crosses (crossing flux lines is related to the Gauss law).
- the flux method says nothing about the cause of the real force that an isolated electron feels but physically, it is only such a force that acts onto an electron, generating a current.

So my preference goes to the Lorentz force and/or to the treatment by SR.

Thank you for the discussion.  It has been enjoyable and informative.

Liberty
http://www.dynamaticmotors.com

[dgaumond]

I think same as Liberty

The current pass linear between two brush and cut flux line   from center to outside 

nothing happen in disk if nothing check from outside view


The flux turn with magnet  and the current doesnt turn in disk

the back torque come from external brush and cut flux line outside of the magnet with current pass in brush and wire


i like to test it with mumetal around external brush and wire   and isolate external flux with mumetal who pass in cooper disk

or to build this generator with two disk