Power from repelling magnets

[ayeaye]

Ok, what about that (figure below)? The object moving may be any iron object. The trajectory may also be a curve, such as a larger disk. Just in principle.

The mu metal changes the field of the pole so that most of the force is to the side, thus more or less horizontal on the figure below. When moving in a line like below, there is positive attraction all the time, until passing the mu metal. After passing the mu metal, there should not be much negative attraction.

I tried it, and indeed i felt very little negative attraction after passing the mu metal, much less than the positive attraction. Again 8 of these 25 mm disk magnets one on another, and two pieces of mu metal that i have one on another, taken from an old hard drive.

Just an idea, maybe i didn't consider something, it is not that i say that this is how it should work. But what i want to say is that the asymmetry that the mu metal provides is different, thus it should also be used in a different way.

[citfta]

ayeaye,


I kind of get the idea you may not have a lot of money to spend on your research.  But I do have a suggestion to help you.  Find a computer repair shop and ask them for any hard drives they are planning to throw away.  You should be able to get several.  Take them apart and you can get plenty of Mu-Metal.  Each hard drive has two pieces of Mu-Metal with very strong neo magnets on them.  You can most of the time remove the magnet with a hammer and chisel.  I took 3 of them apart yesterday.  I did have one magnet that refused to separate  from the Mu-Metal but the others came loose with a couple of hits from the hammer on the chisel.


I can also tell  you that you are correct, the Mu-Metal will shield the magnetic forces.  Whether you can make a device like you have drawn actually work, I don't know, but it appears it might work.

[ayeaye]

I can also tell  you that you are correct, the Mu-Metal will shield the magnetic forces.  Whether you can make a device like you have drawn actually work, I don't know, but it appears it might work.

Thank you.

What many don't perhaps know, is that mu metal, as well as any other shielding such as iron, doesn't really erase the field. What it does is that it takes the field lines inside itself. Like in that case, most of the the field lines that come out of the pole, go into the mu metal, and come out from the edge of the mu metal.

Mu metal works because of the delicate crystal structure in it. It is thus sensitive to shock and vibration, as this may damage that crystal structure. Restoring it requires heating in a gas, which most are likely not able to do. I got my mu metal from a hard drive using pliers. This means that i bent the mu metal a little, i don't know did it damage the mu metal, all i know is that i tested it, and it shields.

It needs to be tested how much the processing damages the mu metal. Such as cutting or filing. Mu metal is otherwise as easy to process as a soft iron, but this sensitivity to processing is a problem. I didn't process my mu metal any way, just used it the shape it is.

I know someone who indeed had a computer repair shop once, and now he has many old hard drives, but he is far away. The mu metal is glued to the magnet in the hard drive. He said that he takes the mu metal out of the hard drive using a sharp blade, thus not beating or bending it. I don't know how he is able to do that though.

[citfta]

I imagine your friend put the sharp blade at the edge of the magnet where it contacts the Mu-Metal.  Then a sharp tap with a small hammer or other object will pop the magnet loose.  That is basically what I am doing with a small sharp chisel.


Also check your private messages.  I sent you a message about another subject.

[ayeaye]

Well what i want, is to establish beyond doubt that there is overunity when disregarding friction. Then we know, the only thing that prevents continuous rotation, is friction. And when its all measured, then we can find ways to solve it, either by decreasing friction, or increasing energy gain.

In the past, may well be that the results with overunity that couldn't overcome friction, were rejected. This i think was a mistake.

Friction is not theoretically part of the process, it is not theoretically inevitable. When there is overunity, there is overunity, friction only prevents getting benefit of it.