Xcamel,
The article you linked to, while very interesting, is not a refutation of the theory in question that mudblood has posted. Instead, it is merely a description of an inconclusive experiment.
Ordinary iron and carbon-steel loose their property of being attracted to a permanent magnet at roughly 800degC.(much cooler than the earth’s core) I know this from experience. Of course not all magnetism ceases at that temp, but any magnetism left is very weakened and must exist only at the atomic level.
It may well be that the theory, that is the subject of this thread, is bogus. But I would not find it surprising, if it were found in the future, that the generation of earth’s magnetic field proved to be more complex than can be explained simply by the rotation and/or circulation of our molten iron core.
I would also like to know the credentials of the person who is proposing this new theory.
A friend recently loaned me a video made by NOVA that goes into this subject. It is called “Magnetic Storm, Earth’s Magnetic Shield” folks who are interested in this subject might enjoy that video if they can find it.
This bares out in the fluctuations of the magnetic field at the surface, which match up with density fluctuations measured in the core.
The article I posted seeks to replicate that effect, and inasmuch, has done so.