Latest: No back torque generator.

[Yucca]

Hi Yucca
Thanks for your very comprehensive answer,from what I have read some say it has Lenz,some say it doesn't,about 50/50, I can't see Lenz being coursed by the electrons being thrown out,as I understand it they have no mass.
peter

Peter,

electron mass is said to be approx 9 × 10^-28 grams. So very lightweight but it´s the only backdrag mechanism I can think of happening because Lenz backdrag can´t happen when no flux lines are cut as is the case with true homopolar generators in which the magnet rotates along with the disk.

With one amp current flow 6.24 x 10^18 electrons will leave the disk edge every second which would weigh only about 6 nanograms. It would take over 5 years to shift 1 gram of electrons with 1 Amp, So yes, I agree with you, for all intents and purposes they are weightless and my theoretical backdrag mechanism would be pretty impossible to detect. So if I notice slowing when I close the switch it will not be due to this effect.

[lumen]

@Yucca

I´ve heard many say that homopolar generators with static brushes will suffer from lenz. But I fail to see how when I imagine the field which will behave for all intents and purposes just the same as if the magnet were still.

Why do you think that when a magnet is rotating on it's axis that the field is not rotating also?
This is a very difficult condition to detect because any conductor placed in the field will generate a current but the measuring conductor will generate the reverse current and the result output will be zero.

You guys are going to make me get my homopolar test rig back out and make some video if you keep it up.  I would really like to finish the project I am working on now first.

[Yucca]

Hi Lumen,

I agree that the field will also be rotating, but if the disc magnet is span axially and the magnetisation of it is uniform then the flux strength at any point in space around the magnet will remain constant regardless of its rotation. Standard induction requires a conductor to experience a change in flux over time. If there are no changes then no induction will occur. You stick a gausmeter anywhere near an axially rotating disk mag and it will be flatline, so how can induction occur? Of course if you spin a bar mag, poles on the circumference then your making big flux sinusoids which will induce current in any nearby conductor, but in this case the flux around remains still, all conductors nearby experience steady state flux.

I look forward to you bringing your homopolar rig off the back burner, no rush, finish up your other project first. also would love to hear your opinion on the mechanism that causes electron flow here.

In my mind it as if electrons when exposed to a constant magnetic flux will become more susceptible to diplacement through acceleration, maybe they become more massive, maybe they become slippier, Maybe the surrounding stuff becomes slippier, I don't really know, but these things are quite fascinating and mainstream science tends to ignore them, probably because they jeopordise the status quo being a mechanical electromagnetic device that does not obey Faradays law.

[lumen]

Yucca,

would love to hear your opinion on the mechanism that causes electron flow here.

The method is the same method that has always worked, it's simply the magnetic lines of force cutting a conductor.

The misconception is that you need changing polarity or a field changing in strength to induce a current flow but in fact all these cases only work on the same principal, lines of force cutting the conductor.

The problem with a magnet rotating on it's axis is the current can only flow from the center to the outer edge. This leaves the problem that all the lines of force that cut the conductor to generate a current will also cut the conductor again in the opposite direction as the force lines are looping back to the other side of the magnet.
This effect will generate the same current in the conductor in the opposite direction at another point along the conductor and appear as though no current flow was generated.

It is totally balanced, every single force line that cut the conductor must cut it again to reach the other side of the magnet. That's why the disk is used in the homopolar generator.

If the disk rotates with the magnet, it only serves as a conductor that the lines of force do not cut because it rotates with the magnet and the returning lines generate the current flow through the external conductors.

If the magnet is still, then the spinning disk is cutting the lines of force and generating current flow while the external conductor does not cause current flow since it's not cutting any lines of force.

Once you see this, it becomes clear why the homopolar generator is not overunity unless it actually worked in the last schematic on the picture I posted. ( I have not tested this but believe it not to work)

[broli]

Yucca,
The method is the same method that has always worked, it's simply the magnetic lines of force cutting a conductor.

The misconception is that you need changing polarity or a field changing in strength to induce a current flow but in fact all these cases only work on the same principal, lines of force cutting the conductor.

The problem with a magnet rotating on it's axis is the current can only flow from the center to the outer edge. This leaves the problem that all the lines of force that cut the conductor to generate a current will also cut the conductor again in the opposite direction as the force lines are looping back to the other side of the magnet.
This effect will generate the same current in the conductor in the opposite direction at another point along the conductor and appear as though no current flow was generated.

It is totally balanced, every single force line that cut the conductor must cut it again to reach the other side of the magnet. That's why the disk is used in the homopolar generator.

If the disk rotates with the magnet, it only serves as a conductor that the lines of force do not cut because it rotates with the magnet...

Correct.

and the returning lines generate the current flow through the external conductors.

If the magnet is still, then the spinning disk is cutting the lines of force and generating current flow while the external conductor does not cause current flow since it's not cutting any lines of force.
Once you see this, it becomes clear why the homopolar generator is not overunity unless it actually worked in the last schematic on the picture I posted. ( I have not tested this but believe it not to work)

Not so correct there.

You seem to have the misconception that the magnetic field actually is rotating along the magnet. Do you know how ridiculous this is?

Imagine a circular hoop that only exists of electrons. Now you apply a voltage to this hoop thus the electrons start to move around. This movement will generate a magnetic field.  Good now remove the voltage and spin the hoop by hand. Again the electrons will move around and thus a magnetic field arises. Do you see how both result in the same thing although one was mechanically moved while the other was electrically moved. This is why rotation has no result on the field. Because the electrons are moving already. If you added mechanical movement you would be either slow the overall current speed down or speed it up. So in a very controlled experiment you might see the field increase or decrease. In a true conductor you see nothing. Because as you speed up the electrons, the "positive" part of your conductor will speed up in the opposite direction thus the field strength will always remain the same. A cylindrical magnet can be seen as a hoop with a certain height. Basically a cylinder without it's top and bottom. Think about that.

This is why your field cutting argument is ridiculous if you accept the above.