[mudblood]

This guy has a very interesting theory of the Earth's magnetic sphere that is different than the long-held view that it is created by the rotation of a liquid iron core. Deeper in the site he points out that iron's "curie point", once reached, will cause it to give up its ability to create a magnetic field at all. The dynamo system he describes is powered by the sun.

[Mr. K]

I have always wondered how a molten metal core could have any magnetic field

[z3n]

Wow, sometimes these guys sound like they wake up throwing darts at theories.

[jpsb]

ping for a read later

[Ev Reeman]

Not being a scientist, I can only guess as to what keeps our Earth’s magnetic field in balance but I suspect it is a number of different factors which include the relationship to the other planets, stars, our own Moon and the inner crust of our own Earth that provides that balance. I also believe that all these things were created by God and are kept in that state of balance by that Supreme Being even as these areas undergo constant changes and fluctuations that occur daily as well as over a long period of time.

[xcamel]

Exactly who is this guy, and what are his creds?

Oh, and a complete rebuttal of his theory is here:

http://focus.aps.org/story/v19/st3

[xjcsa]

The author has some learning to do about when to use “it’s” vs. when to use “its.”

[silverleaf]

this holds with the ancient legends that an near-orbit or near-miss object so affected earth’s magnetism that the magnetic poles were switched

some of the wildest ancient stories talk about the earth’s rotation even being reversed. Interesting to speculate

[MichaelP]

That's pure BS. Earth is terrestrial. Currents of the molton core change the magnetic field all the time. There is no corrolation with the gas giants...

Mike

[babygene]

“the long-held view that it is created by the rotation of a liquid iron core”

That view was popular, but never did make any sense.

[Reaganesque]

There's always this theory...

[catnipman]

Anybody can have theories.

To paraphrase “Rocky Horror Picture Show”:

“I’ve got theories, you’ve got theories, we’ve all got theories!”

I’ll believe it when he produces a scientifically accurate dynamic physical model that predicts the periodical pole reversals.

[CodeToad]

So, can this guy demonstrate then the magnetic movements and reversals the Earth experiences? Magentic North moves about 0.1 degrees per year where I am at. The Sun isn’t moving that much. He would need to explain the interaction between the Sun and the Earth in order to prove his theory.

[Eagles2003]

Please tell us how Nikolai Tesla powered his “electric” car back in 1931. No battery pack, just 12 vacuum tubes and two ferrite rods I ass-u-me were cores for low frequency inductors/coils of some kind.

[Taffini]

magnetic field bump

[jpsb]

OK, I’m calling BS on this one, just because of all the crazy rip off schemes in the adds with the article. Nice try.

[HamiltonJay]

So why does Mars have no magnetic field to speak of??? If its simply a matter of being a planet spinning in space, its electromagnetic field should have collapsed in the pockets that it has today.

I’m not saying the theory is wrong, just asking, how it handles this counter example.

[wideminded]

Deeper in the site he points out that iron's "curie point", once reached, will cause it to give up its ability to create a magnetic field at all.

You can see right there that this guy is wrong and doesn't understand what he is talking about, At the Curie temperature iron will lose its ability to be permanently magnetized, but it is not the magnetization of the outer core that causes the Earth's magnetic field. The current theory states that the magnetic field of the earth is caused by electric currents flowing in the outer core. Molten iron can still conduct electricity. So the outer core can produce a magnetic field without being magnetized itself.