Cooling effects in Steorn eOrbo

[lumen]

If the coil is biased then you'll see the induced voltage from the toroid core due to the spinning magnets.

I'm not saying the over all design is not cop>1 because there might be noticeable magnetic viscosity involved, but it's misleading to say there's no bemf. There's no back emf is there's no current in the coil, but who cares about that. What matters is if there's bemf if there's current in the coil.

I can see no way that any passing magnet can induce a magnetic flow direction in a toroid core.
The basic reason that magnet motors cannot operate is because, from one magnet to another or from a steel core to a magnet, the field lines appear as a circular ball approaching.
Because of this, any field from a magnet approaching a toroid core would always intersect at a point that would cause equal field lines traveling in each direction around the core.

Any field direction already in the core would only be strengthened in one direction and weakened in the other direction by equal amounts.
This condition would not change anything unless the direction that was strengthened exceeded the saturation curve of the core.

[broli]

I agree with lumen and this is also what the sims show. Below I attached some sims I did a few days ago that show what lumen is talking about. It shows that the field is divided in both direction and thus the net circular flux should be about 0. The first two are when there no current in the coil.

The last two show the situation with current through the coil. How I use my logic on this one is simple. The core has an area with increased flux and and area with decreased flux density (yes I checked it by removing the magnet and measuring the field only caused by the coil VS the field caused by coil and magnet together).  You can see a toroid as many single windings in series, if you apply this reasoning you can see that the area where the flux increased the voltage will be forward while in the area where the flux is decreased the voltage will be backwards and thus cancel in total.

So in the 0 current case emf is canceled because flux lines enter from both directions about equally.

In the non 0 current case emf is canceled because there's a non uniform flux density through the coil.

That's not all. Let's assume that for some reason the flux didn't cancel completely, which I suspect since nothing is perfect, and there's a net circular flux. Meaning voltage is induced regardless of current flow or not. Even this induced EMF can be canceled by adding another coil somewhere hooked up in series in such a way that the combined EMF is forward in one coil and back in the other, meaning the net is 0 volt.

So PL I have so far no reason to believe that there's a voltage when current is allowed to flow. All my knowledge and logic so far says this is not the case. I hope your own experimentation will enlighten both of us on this.

But like I said earlier there's something mechanical which is being overlooked. If my simple math is correct the mechanical energy is indeed completely free. I have a simple thought experiment on this which if requested I may share.

Sorry for the long technical post. I don't like these myself as I'm more of a show guy than tell.

[PaulLowrance]

No, you're missunderstanding what I'm telling you. The FEMM clearly shows the effective permeability changes when the magnet approaches and then leaves. If there's DC current in the coil while the perm changes, then the magnetic lines in the core change, which is seen as a voltage on the toroid. 

[PaulLowrance]

Anyhow, you guys won't believe this -->

http://www.youtube.com/watch?v=e47jMCRecMY

If true, then this is scary stuff!!! Yee haw 

[PaulLowrance]

Besides the rapid drop in temperature (even below ambient, or so it appears-- still need to confirm that) is that rpm will all of a sudden drastically change. I've used this dremel a lot, and it does not change rpm by itself. That is such a strange effect, and I have no idea what could do that. Hey, Sean mentioned something about dark energy. Maybe that's it? 

The rpm can just all of a sudden for no reason I'm aware of will decrease or increase by several magnitudes. Very cool.