MAGNET SHIELDING

[Low-Q]

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

[Gwandau]

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

[gravityblock]

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

[Low-Q]

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

[mscoffman]

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

:S:MarkSCoffman