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Mechanical free energy devices => mechanic => Topic started by: 24hosting on December 15, 2009, 05:12:14 PM
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I came upon magnet shielding. Has any one tried this ?. I am going to ,but if someone has some first hand knowledge about how ..or if this works with a magnet motor I would appreciate the feed back. Thanks. 24hosting.
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I know of nothing that will act as magnetic shielding. There are two types of materials that interact with magnetic fields. Ferro materials, iron etc... and Diamagnetic materials like copper and aluminum. In a magnet motor, if iron is used, the magnets get strongly attracted to the iron. If copper is used, there is a slight repulsion and as the magnet moves faster the repulsion (opposing the movement) gets stronger. So using either of the two types of magnetic materials actually hinder the effect you want to achieve. Youtube has a few video's showing failed attempts. Here's one.
http://www.youtube.com/watch?v=dvz2-5OwK6w&feature=video_response
Edit: Well you could say that putting a magnet inside an iron enclosure would do it but to get the magnetic field back you would have to pull the magnet out of the enclosure and that takes work.
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The ferromagnetic material can divert the return path of the magnetic field. The ferro material must have both a north and a south pole attached to it in order for it to divert the return path. If only one pole is attached to it, then the field will pass through or be pushed around the ferro material.
Here are a few of my videos showing how shielding works if properly done.
http://www.youtube.com/watch?v=_81SxByRNR8
http://www.youtube.com/watch?v=aJFgMB5ezsE
The ferro material is acting as a wire for the flux to travel through. The interesting thing about using this principal is the flux can now be viewed as an electrical current that can be confined and should be able to be exploited. Here is an excellent thread showing how to exploit this phenomenon by confining the magnetic field with a ferro material and using an outside circuit to provide torque on this confined field without any BEMF, http://www.overunity.com/index.php?topic=8461.0
Trying to use it as a shield is a setup for failure unless you are trying to protect parts of a device from the influence of the magnetic field, such as hard drives. IMO, it has a huge potential in magnetic field confinement along with an external electrical current as shown in the link of the above thread.
GB
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I found something interesting with ferrofluid. When a magnet is covered by this ferrofluid, averything none magnetic materials is repelled away from the magnet as long the object is inside the fluid. The virtual mass of the ferrofluid close to a magnet is so high that everything will be pushed away inside the fluid. So there you have a very powerful diamagnetism involved - virtually speaking.
So what if you put a solid magnetic material, which have the same mass and magnetic properties as ferrofluid, inside the ferrofluid, and experiment with different positions just to see if you'll find a way to force this magnetic piece in one direction, or in circular motion, by finding a balance between its buoyancy in the ferrofluid and the magnetic attraction to the magnet. This balance between attraction and buoyancy I believe is some kind of magnetic shield that comes into work instantly as the magnetic piece is "entering" the ferrofluid. Maybe this is a way to "trick" the force on the magnetic piece to make one-direction force?
Vidar
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Well, everyone here knows that magnetic shielding is the key to perpetual motion. How are the researchs in this field?
When will the world know a magnet that attracts steel balls only at one of its sides, and not at the other side? When humanity will discover the "unidirectional attraction" magnet?
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Hmm... Who's affraid of magnetic shielding?
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Hi Rapadura,
Creating a magnet that attracts steel balls only at one of its poles, and not at the other side, is easily done.
The best way of shielding a magnetic field, and in this case one of the poles, is by placing the magnet in a
multilayered soft iron container, and only exposing one pole surface of the magnet.
This multilayer system of soft iron sheets only need to be separated from each other by a nonconducting material,
like plastic or epoxy. This shield system is used by scientists when experiments are needed to be performed under
conditions unaffected by any magnetic field, including Earths magnetic field.
A five layer of separate soft iron sheets shields from exposure of Earths magnetic field to a degree of 1/1500.
Diamagnetic materials would seem to be a nice solution to shield magnetism, but it is not that effective, sorry to say.
Until recently the world only knew of one really strong diamagnetic material, namely Bismuth, which is by far
the strongest naturally existing diamagnetic material.
The strange and syntetically manufactured material pyrolytic graphite is many times more diamagnetic than bismuth.
My personal experiments with these materials have been fun and interesting, but also a bit dissapointing.
Both bismuth and pyrolytic graphite repels magnetic fields to such an extent that you can make them levitate upon
a strong Neodymium magnet, but they are also transparent to a magnetic field, and does not work as an effective shield.
But as I told you above, a separated multilayer of thin soft iron sheets is excellent shielding material,
you see the effect is somewhat like short circuiting the magnetic field geometry by encapsulating it behind these layers.
Try it yourselves, it is an easy performed experiment. Make two five layer cakes of thin soft iron sheets separated by electrical insulating tape,
and place one Neodymium magnet behind each of the cakes, opposite poles down. Now let the magnets meet behind their shields.
Almost all detectable attraction between the two strong Neodymium magnets is gone!
But without the insulating tape between the iron layers, you would have had some real problems getting the magnets apart.
I am absolutely convinced it is fully possible to construct a repelling type magnetic motor, by using this multilayer knowledge
in combination with the use of bismuth and pyrolytic graphite in shaping the field geometry desired for a repellant torque system,
as used for example in the Perendev concept.
As I said in an earlier post, lets do it, let's solve the magnet riddle, it's the cleanest energy there is,
and additionally it will free humanity from the grip of authority.
Gwandau
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Wow! I'm happy to read here that there are so many ways to shield a magnet!
Well, if it is really possible to make a magnet only attract a steel ball coming from one side, not from the other side, we have infinite possibilities.
Look the (ugly) GIF animation I did bellow:
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So, is my idea correct?
If we had a magnet that attracts steel balls only from one side, couldn't we make a pepetual motion device easily?
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So, is my idea correct?
If we had a magnet that attracts steel balls only from one side, couldn't we make a pepetual motion device easily?
A magnetic shield does not shield one pole. It only differ the poles position and focus the magnetic flux within the shield material. The part of the shield that is closest to the other pole is the opposite pole. Because the magnetic field must be a closed loop, you cannot ignore one pole that easy. If it was possible to shield one pole completely, the other pole would not have any other pole to go to, and then the magnetic field would dissappear and not attracting anything. In the .GIF example above the steel ball will not pass by. It will be attracted from both sides equally - at least the total energy (force x distance) will be equal on both sides but with opposite function.
Magnetic shielding, as we know it, is NOT the solution to perpetual motion. It's easy to believe so, but there are allways other aspects that you don't think of that will come in and ruin the whole project.
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In the .GIF example above the steel ball will not pass by. It will be attracted from both sides equally
Thanks for clarifying this. So, we still in our search for our magnet with "unidirectional magnetic attraction".
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Low-Q,
You are perfectly right in that Rapaduras idea will fail in its present configuration.
But I´m afraid your understanding of my shielding concept is flawed by a preconception.
The type of shielding exemplified incorporates a fully closed loop, its all about the reshaping of the magnetic geometry,
leading the field into a current-like propagation through the ferrous multilayer.
This technology of altering a magnetic field by bending it into a constricted path is common orthodox scientific knowledge.
The trick here is not really shielding off one of the poles from the other, but instead by leading this field into a narrow path hidden behind the shielding properties.
And by only exposing one pole end area of the magnet to the surrounding, you still have a complete field interaction between north and south poles, but this north-south interaction is executed inside the shielded volume.
This way we have just confined the magnetic field to a more narrow path, and the exposed pole is still actively relating to the other pole,
we have just altered the geometry of the field structure, so that the electromagnetic visibility of one pole outside the shielding circuit is inhibited.
Additionally the use of bismuth or pyrolytic graphite is essential in the transition from the shielded path to the exposed pole area.
An example of this technology in action is The Wang Shum Ho prototype 5kW electricity generator which is reportedly powered by permanent magnets and claimed to be close to production. The team is seeking a marketing partner and offers a working prototype for viewing by financial backers.
Magnetic Shielding is used to create N pole Only magnets in this creation of Wang Shum Ho.
So on the contrary to your conviction, I believe shielding technology is the only way, all other ways are resulting in an even disposition of field vectors, resulting in zero output.
Gwandau
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I came upon magnet shielding. Has any one tried this ?. I am going to ,but if someone has some first hand knowledge about how ..or if this works with a magnet motor I would appreciate the feed back. Thanks. 24hosting.
One thing used commonly for magnetic shielding is Mu-Metal :
http://mumetal.co.uk/
It doesn't shield but is very good at folding the magnetic field within it's own confines.
The only other way, that i know of, is to strongly divert the magnetic field using ferrites and this isn't shielding either but more like re-routing.
The LaFonte Group has some interesting videos on re-routing the magnetic field :
http://www.youtube.com/user/LaFontegroup
Hope this helps,
Gary.
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I hope people continue to pay attention to this subject. Magnetic shielding can be the solution to the search for an unidirectional attraction magnet.
Gwandau's statement that by exposing only the end area of one pole of the magnet to the surrounding, and shielding the rest of the magnet ("short circuiting" the path of the magnetic lines) we can attract a steel ball only from one side makes me have hope that perpetual motion is possible.
The day we can make a steel ball be attracted by a magnet when it is approaching the magnet, and not be attracted by the same magnet when it is going away from the magnet, we will have perpetual motion.
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Gary,
yes, MU-metal is exactly what I am referring to, but you see, MU-metal is
just a multilayered system om ferrous material, preferrably simply soft iron.
It is nothing special or mysterious about this concept, so I am a little
surprised I am getting met with sceptisism by some in this forum regarding
the possibilities to shield a magnet field in any desired way.
My own experiments shows it is rather easy to create a simple one pole
field appearance with a cylindrical Neodymium magnet.
MU-metal does shield, it is exactly what it does by diverting the magnetic field
and re-routing in a desired direction.
The result is that when checking the shielded surface with a Gauss-meter,
it does not register anything, which is the very concept of a magnetic shield.
Thus I don´t care if one calls it re-routing or shielding since the result is exactly the same.
Additionally I would recommend you all to do practical experimenting to a greater extent
and not pay too much attention to what everybody else is saying, especially when somebody
says it won't work.
Low-Q,
your answer was unfortunately dispiriting Rapaduras ideas, since you almost made him believe what you wrote,
which obviously is based on something you have read.
If you have been experimenting with this technique yourself, you would have known that magnetic
multilayer shielding is a very effective and simple way to shape the field structure in any desired way.
Rapadura,
don´t give up that easily just because somebody contradicts you. Experiment. Get your own information.
Magnetic shielding is an art that incorporates a lot of different factors due to the complexity
of the electromagnetic geometry around a magnet.
Just by shielding one pole of the magnet in your example, the ball will not pass the magnet.
You are still confronted with the fact that the same attractive force that creates the movement
of the ball, also is responsible for the force that stops the ball and evens out the equation.
This setback to your concept has nothing to do with any inability to shield a magnetic field,
it is more a question how to harness the possibilities given by magnetic shielding.
Personally I believe that a magnetic motor using the attractive forces of the magnetic field
are facing a great deal more complications than a magnet motor driven by the repellant forces.
If you discarded the steel ball and instead used a shielded magnet in combination with a repelling concept,
I am sure you would get torque.
My advice to you is to try to assimilate the way a magnetic field relates to ferrous and magnetic
surroundings by doing simple practical experiments.
This way you will contribute with first hand experience and thus add to our knowledge.
And to all of you reading this,
I am not here to argue about theoretical possibilities, that is not my intent by becoming a member,
the reason I am here is to share my own practical experience and hopefully get valid self experienced
information based on empiric experiments back.
To have a theory is great, but it is just a theory until it is tested.
Don´t listen too much to others, test it yourself. Magnetic experiments are booth cheap and fun!
Gwandau
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Hi Gwandau :)
I was in no way being skeptical, i agree with all you have said on this matter.
I responded before reading your post and then edited my post after reading yours because yours reflected the truth of the matter more correctly than mine.
And, yes, personal experimentation is the way forward i totally agree.
I just got my first Bedini circuit working, i'm also on the tech group for bedini monopole3 and they are fantastic for pure Bedini SSG, i'm so happy :)))
Happy (late night/early morning) experimenting :)
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You are still confronted with the fact that the same attractive force that creates the movement
of the ball, also is responsible for the force that stops the ball and evens out the equation.
This setback to your concept has nothing to do with any inability to shield a magnetic field,
it is more a question how to harness the possibilities given by magnetic shielding.
Gwandau, but with magnetic shielding it is still impossible to abolish "the force that stops the ball and evens out the equation"? I personally think that abolishing that force is the only way we can achieve perpetual motion.
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Gary,
sounds great, and thanks for the positive response.
I will keep you all informed of my progress in my Perendev-type project.
At the moment it is a lot of initial field shaping configuration tests involved,
but when these are made, I am going to move in on the construct of my first test prototype.
Keep on the high spirits, the most important with it all is to have fun.
Rapadura,
As I said in the post before this one, a repelling system is the key.
You have to incorporate shielded magnets in both stator and rotor, and
you have to have three rotors parallel to each other with the magnets
offset some degrees to create rotation.
Personally I recommend to start experimenting with a Perendev-type magnetic motor,
since it seems to be the most simple way to study the repelling force of magnets.
Below is a link to a clip which probably is fake, but still very close to the concept
I am working on, so fake or not, it is instructive to see.
http://www.youtube.com/watch#v=FxReArGbE_s&feature=related (http://www.youtube.com/watch#v=FxReArGbE_s&feature=related)
The simplicity in the idea of a repelling push in combination with correct shielding makes this a fully possible solution.
Gwandau
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WOW Gwandau, a perendev !
I've always admired those, the Minato wheel reminds me of it what with the spiral arrangement and all.
Keep us posted plz :)
Gary.
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Low-Q,
You are perfectly right in that Rapaduras idea will fail in its present configuration.
But I´m afraid your understanding of my shielding concept is flawed by a preconception.
The type of shielding exemplified incorporates a fully closed loop, its all about the reshaping of the magnetic geometry,
leading the field into a current-like propagation through the ferrous multilayer.
This technology of altering a magnetic field by bending it into a constricted path is common orthodox scientific knowledge.
The trick here is not really shielding off one of the poles from the other, but instead by leading this field into a narrow path hidden behind the shielding properties.
And by only exposing one pole end area of the magnet to the surrounding, you still have a complete field interaction between north and south poles, but this north-south interaction is executed inside the shielded volume.
This way we have just confined the magnetic field to a more narrow path, and the exposed pole is still actively relating to the other pole,
we have just altered the geometry of the field structure, so that the electromagnetic visibility of one pole outside the shielding circuit is inhibited.
Additionally the use of bismuth or pyrolytic graphite is essential in the transition from the shielded path to the exposed pole area.
An example of this technology in action is The Wang Shum Ho prototype 5kW electricity generator which is reportedly powered by permanent magnets and claimed to be close to production. The team is seeking a marketing partner and offers a working prototype for viewing by financial backers.
Magnetic Shielding is used to create N pole Only magnets in this creation of Wang Shum Ho.
So on the contrary to your conviction, I believe shielding technology is the only way, all other ways are resulting in an even disposition of field vectors, resulting in zero output.
Gwandau
Your solution seems to be a better way of shielding. However, how do you manage to "tell" the magnetic flux to go inside a narrow path? Parallell magnetic lines are forced apart, so it will take force to compress them into a norrow path. Wouldnt the magnetic flux in your idea make a shorter turn so in fact less flux is exposed from the "open" pole - so much less as the shield can manage, and then we still have a regular magnet, but a much weaker one?
Vidar
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I have a small tips to you:
Usually, all (maybe) attempts to make magnet motors is based on one or more single magnets in the rotor. Let's say we have one circular magnet, donut shaped, that is magnetized radially. If you can imagine this type of magnet rotating in a motor with shielded stator magnets (or you can imagine the opposite configuration). Is it possible this rotor can rotate, if so? If it is hard to imagine that this will work at all, it will probably not work with single magnets. Because the net magnetic field that is present in a single magnet is in sum a uniform none directional field for one complete revolution.
The magnetic field must be forced in one direction just like in those small neomagnets you see with single AA battery and a wire. The magnetic field that is built up in this wire is also passing the magnet to force the magnetism to be denser on one side to push the small neomagnet around - by adding energy. I cannot se that any passive magnet can manage to do this because both magnetic poles will interfere with eachother independent on which pole that is closest. All the magnetic lines will be taken into account even inside the shield, because the magnetism from the other moving magnet, or the magnetism applied to a steel ball, will follow the same magnetic path. Therfor it will not be possible to produce more force in one way than the other - my guess.
Vidar
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Vidar,
thanks for your interest. As for the magnetic situation you described, the only way to really know
is to perform tests addressing accurately the specific electromagnetic obstacle, so I really don´t know.
The only thing I really have come to understand, is that the electromagnetic field still is a total mystery to mankind,
and that the absolutely latest theories about the opposite directional rotations of electrons in the crystal lattice structure of the magnet
still are not confirmed as the very origin of magnetism, just an interesting observation made by the scientists.
According to Stephen Hawkings, to apply electromagnetism into the Quantum Theory, one would need the concept of a strange loop of
so called virtual electrons making a field-transgression into an adjacent universe and back to explain the observed magnetic effects.
Personally I don´t believe the magnets themselves are the origin of their attractive properties, they may just as well be creating a response
to the condition of the Ether, acting as lenses by refracting the underlying field in a way that expands space between the magnets between
same poles, and decrease space between different poles of two magnets.
One thing is sure, magnets does not conform to the "Holy" Second Law of Thermodynamics, since you can have a car hanging by a Neodymium
magnet for years, and then by only applying a few Joule of energy in heating the magnet suddenly making the enormous energy applied by
the magnet into nothing, making the car drop to the ground.
And since we today really have no idea why a magnet attracts a piece of iron, it would be presumptuous to declare we have
covered the accessible possibilities known to interact and reshape the geometrical structure of the electromagnetic field.
The mystery of electromagnetism is still a white spot on the map, and we are a lucky bunch of guys exploring this uncharted realm.
So, my fellow explorers, lets do some fun experimenting with open minds and knowledge based on personal experience.
Remember, the more direct knowledge you attain, the more you realize how little you know, which is the very road to wisdom.
Gwandau
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When will the world know a magnet that attracts steel balls only at one of its sides, and not at the other side? When humanity will discover the "unidirectional attraction" magnet?
The world has known it since 1973 (This is nothing new). The effect was discovered by Mallinson in 1973 and is known as a Halbach Array and requires no shielding with a ferromagnetic material, http://en.wikipedia.org/wiki/Halbach_array
Part 1 of the below video shows how a sphere is strongly attracted to one pole of the magnet, and has almost no attraction to the other pole. One pole is external and is strengthened in a Halbach Array, while the other pole is internal and is nearly canceled to 0.
Part 1, http://www.youtube.com/watch?v=zzV6vMG31Mc
Part 2, http://www.youtube.com/watch?v=gwajrvMj5Ic
Part 3, http://www.youtube.com/watch?v=3QYQMJSzlf4
Part 4, http://www.youtube.com/watch?v=jVbMsFv7Gp4
You can even make a circular Halbach Array with different types of configurations. Here is a simple configuration, http://www.youtube.com/watch?v=qv-9IAj_YnI
Here are a few of my videos showing how shielding works if properly done. If you pay attention to the videos below, you will notice the screwdriver is not attracted and the field is shielded when you have 2 magnets with opposite poles attached to a ferromagnetic material. When you have only one pole attached to the ferromagnetic material, then the screwdriver is still attracted to the metal, which means the field isn't being shielded.
http://www.youtube.com/watch?v=_81SxByRNR8
http://www.youtube.com/watch?v=aJFgMB5ezsE
As you can see in the above videos, a magnetic field can be shielded if done properly.
GB
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You don't shield one pole, you end up with both poles on the same side. That is what the Halbach array do. It is no monopole. The same with the mu-metal piece you played with too I guess. Maybe I'm wrong, but I think strongly I'm right :)
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I think these bracket { } shaped magnetic shields are interesting.
ageofmagnetizm links:
http://docs.google.com/View?id=ddsjwvjk_22fdm8nccx
http://www.youtube.com/user/ageofmagnetizm
http://www.google.com/search?hl=en&q=geomagnetic%20motors&um=1&tbs=vid:1
(http://www.google.com/search?hl=en&q=geomagnetic%20 motors&um=1&tbs=vid:1)
:S:MarkSCoffman
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So, could Halbach array do this?
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So? Any guess about what happens when Halbach array attracts a steel ball inside a closed tube, so the ball can't move freely in any direction, but only back or forward in the tube?
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No guesses?
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Rapadura,
why not start doing some experiments? They are cheap and fun to perform, and will contribute to the rest of us.
Trial and error is the only trustworthy way in areas like this, and keep in mind that errors are important information
in all types of research.
I have attached two informative pdf-files about magnetic shielding.
Gwandau
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So? Any guess about what happens when Halbach array attracts a steel ball inside a closed tube, so the ball can't move freely in any direction, but only back or forward in the tube?
Inside a halbach tube the magnetic flux is uniform. The steel ball is actually being forced all directions at the same time. There is no sticky spots. However, the tube is a finite thing that will pull the steel ball towards the walls if the steel ball is not in center of the tube. Because the magnets will find the ball as a short cut to close the flux loop.
Vidar
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How shielding works best seems to be questionable but it's worth an experiment. I have some MUmetal now and layering is no problem although I will say that one comment about MU being layered already is not true. It is single walled which can be layered. Layering may or may not be needed depending on other factors. Also, MU is a special process and it's effectivness can be ruined easily.
One point also is that shielding can become saturated, lessening the effect. Although this may take a long time which is good and thats where layering may help if needed.
Other points to address are the materials to be used for the energy and drive. I will try an assortment to see what happens.
One thing is a fact, a magnetic field can be contained or excluded depending on the application. Let's see if a "halbach" type effect can be made with shielding. I have my doubt's but I can't yet see why not. So many ideas swirling about, it's all good fun!
Shakti
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There is no question about how shielding works, once you understand it. When you attach a magnet to a ferromagnetic material, the domains will align through the material or with the field. After the domains are aligned, then the ferromagnetic material will act as a magnet.
Attaching a second magnet with an opposite pole to a ferromagnetic material will align the domains parallel with the surface of the material, and the flux will travel inside the ferromagnetic material (the metal is now acting as a return path for the flux). As long as the ferromagnetic material isn't fully saturated, then their won't be an external field on the other side of the metal. This is magnetic shielding.
It takes two opposite poles to shield properly. This is an easy test for anyone to do. The mu-metal found in the hard drives have a single magnet attached to it. This single magnet has both poles on either side of the magnet, thus there is no field on the backside of the mu-metal in the hard drives, and this is how they do the shielding with a single magnet. If your magnets are axially magnetized, then it takes two magnets. Don't make this more complicated than it really is. The concept is simple, and shielding does work, but you must know how to do it properly.
GB
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That was a very nice explanation Gravityblock and I woudn't dream of making something more complicated than it really is.
With respect, it seems you have made my comment more complicated than it really is. If you will please notice I wrote how shielding works "best", not how does shielding work. My questioning comment was simply aimed at the best method of applying shielding to the subject of a magnetic overunity engine, nothing else. I'm sure you can see that now I have clarified my meaning :)
By the way, I visited a factory that makes and fabricates the MU yesterday and had quite a nice chat with one of the men there. For all those trying shielding with MU, one bit of advice was given to me that it should not be droped as doing so can knock the particles out of alinement resulting in less efficient shielding. It's quite an interesting process they use to make the stuff.
I have different sizes of MU now and other materials to do some testing. I have my doubts for various reasons, but it should be fun.
Regards, Shakti
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I have different sizes of MU now and other materials to do some testing. I have my doubts for various reasons, but it should be fun.
Regards, Shakti
Welcome to the forum Shakti. Please keep us updated on your testing. Thanks.
GB
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Thank you GB.
The main obstacles I can already envision is that although MU is a shield, a magnet is still attracted to it being what it's made of. So, even if a magnet is shielded to allow another to pass the "sticky" point, the attraction to the shielding may cancel out the action of polarity.
Anyway, I have another idea to overcome that so lets see what happens:)
Shakti
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Inside a halbach tube the magnetic flux is uniform. The steel ball is actually being forced all directions at the same time.
No, no, that's not a halbach tube... In the drawing bellow, that's just an ordinary plastic tube, used to force the ball to go only forward and back, not sideways.
The idea is that the ball can be attracted by the attractive side of the Halbach array, and after passing the array a little, it will not be attracted by the other side, as it would be in a normal magnet, because that's the non-attractive side of the Halbach array.
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On forÑe diagram - see the not obvious peak. Area size S1=S2 (Power left = power right)
F - force along X axis.
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On forÑe diagram - see the not obvious peak. Area size S1=S2 (Power left = power right)
F - force along X axis.
To be honest, I didn't understand what you said...
So, what will be the behavior of the ball? Passes the Halbach array a little and then is attracted back? Don't pass the Halbach array and gets stuck just in front of the extremity of the array?
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It would just get stuck before it entered, unless you gave it a good enough kick, but then it would roll back. Even if you had magnetic monopoles you couldn't make an overunity device because the moving part would just find the area of least magnetic repulsion (if in opposition, like North North) or area of greatest magnetic attraction (if in attraction, like North South).
Case in point, using electric charges (which are monopoles) you can make a stator composing of a ring of balls, each ball charged to slightly higher electric field values. A ball in the rotor can be charged with an equal E -field potential. All the rotor will do is find the area of least Electric field and sit there (since the rotor has the same potential as the stator). You'd have to change the E field values of the stator to get it to move. In doing that you would induce a current and use power.
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conditions of overunity is S1>S2 or S1<S2 (movement direction). In this model S1=S2. "S" -square under line.
http://www.youtube.com/watch?v=Md4gikM9Ezs
not working by the same reason
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To be honest, I didn't understand what you said...
So, what will be the behavior of the ball? Passes the Halbach array a little and then is attracted back? Don't pass the Halbach array and gets stuck just in front of the extremity of the array?
In order to have "stable" magnets, all the flux have to return to the opposite pole. This means there is a balance in magnetic "amount" on each side of a permanent magnet - even for complex arranged magnets. This balance is constant unless you you power to demagnetize or magnetize a permanent magnet. Balance means in short "No work". It is stable, nothing happens.
As long permanent magnets are in balance, you cannot make things work. Many attempts on magnet motors are based on altering flux by presence of a magnetic object. This object is ofcourse as much affected by the magnet, as the manget is affected by the object. So what is the gain if these forces cancel eachother out? This is like playing with the two numbers 2 and 2. I sit down with the equation 2-2=0. No matter how I arrange these numbers, slice them apart in (1+1)-(1+1), or other configurations, the sum is allways zero. You cannot trick this numbers to get a sum greater or less than zero. So is it for the magnets as well. This is what I believe however. Maybe there is some enery in space or vacuum that can be "captured" to make a magnet motor work, but then it would be much less time consuming building a wind mill and attach a generator to it :)
Vidar