Broli,

A diametrical current in a traditional homopolar motor doesn't generate a rotation.  By taking a look at the Lorentz force in a conducting liquid using a diametrical current we can see there is a CW motion over one half of the magnet and a CCW rotation over the other half of the magnet.  These two cancel each other out resulting in no rotation when using a diametrical current in a traditional homopolar motor.  I know, this isn't anything we didn't know before, but I think we can use this to our advantage. In the video, there is a centripetal current flowing on the left half of the magnet and a centrifugal current flowing on the right side of the magnet.  Now, let's look at this from a generator point of view in a traditional homopolar configuration.  Let's say we have a radial current running between the rim and axis of the disc to provide a CW rotation.  The other half of the rotating disc opposite to the radial current will be inducing an EMF which opposes the applied radial current because it is also rotating CW.  If the other half of the disc had an opposite rotation to the half which has the radial current applied to it, then it would generate an EMF which reinforces the applied radial current.  Half of the disc in a traditional homopolar motor/generator is the problem and the below drawing is my proposal.  The grey portions in the image are the stationary conductive brushes.  The brushes located between the disks could be replaced with gears. The left half of Disk 1 and the right half of Disk 2 may need to be outside the field of the magnet. We could confine the field if need be.  Also, the left and right halves of each disk could be electrically isolated from each other by having a small non-conducting area going down the middle of both discs. 

Gravock

If i was looking to debunk it only.I would mention the metal contraption he placed the unit on. It is a runway light with underground power line 208-230 volt most likely. If it leaks enough it could be the magnet reacting to the leaking power line.
  But since it is such a low budget experimental device why not? Something to play with for entertainment sake. Who knows? I have the one of the hard drive magnets somewhere,just have to remember what it is stuck to. It would be interesting to look at the coil with a magnetic film over it to see the where the lines of force are and how they are split with out speculating. It may even be that it requires placing the battery on the coil ends to train the feild to go in one direction first to start it working. Aside from the motor the rest of the parts can be pulled from a typical junk pile.

Success!

I did a very crude experiment on the below configuration.  I got rotation!  One disk rotated CW and the other disk rotated CCW.  The current ran across the entire diameter of the magnet as shown in the below image.  I placed a lead near both shafts.  I'll take a video when I do a better build.

Gravock

Quote from: Doug1 on September 21, 2012, 08:20:03 AM
If i was looking to debunk it only.I would mention the metal contraption he placed the unit on. It is a runway light with underground power line 208-230 volt most likely. If it leaks enough it could be the magnet reacting to the leaking power line.
  But since it is such a low budget experimental device why not? Something to play with for entertainment sake. Who knows? I have the one of the hard drive magnets somewhere,just have to remember what it is stuck to. It would be interesting to look at the coil with a magnetic film over it to see the where the lines of force are and how they are split with out speculating. It may even be that it requires placing the battery on the coil ends to train the feild to go in one direction first to start it working. Aside from the motor the rest of the parts can be pulled from a typical junk pile.

Doug,
Don't bother building this fake.
It,s not what he shows, it's what he doesn't show!
If I were to duplicate this I would only need to do two things,
1: Put a smaller motor inside the larger motor housing along with some button cells.
2: Put a button cell inside the VOM so it reads voltage when shorted.
DONE!
Fact 1, The coil cannot generate DC voltage required by the DC motor.
Fact 2, The coil would never output such a constant voltage with such a load variation.
(cannot remain resonate with no load to heavy load)

The last schematic I posted does have a BEMF.  However, it is the basis to achieve OU, how to eliminate the BEMF by using additional disc's/magnets, and to drive it into negative resistance with a forward torque.  The BEMF generated over the magnet in the last schematic must be present to obtain OU and to get the negative resistance effect.  The process itself does seem to be counter intuitive, but it's so beautiful once it's understood.  I'll be working on a Solid State Homopolar Generator/Motor (SSHPG/M), thus I'll be turning by attention to the TPU, since it generates a rotating magnetic field without any moving components with a DC output.

Gravock