Earth’s magnetic field is not produced by an internal dynamo within the planet

Dennis Brooks ^ | 2009 | Dennis Brooks

[mudblood]

The New Theory: Earth’s magnetic field is not produced by an internal dynamo within the planet. The magnetic field and the planet are separate parts of a complex dynamo system surrounding the planet. The system includes the planet, the magnetic field, radiation belts, and ring current. The same is true of the other planets. Saturn, Jupiter, Neptune, and Uranus are visible components of otherwise invisible planetary dynamo systems, which are all housed within a magnetosphere. According to this new theory, there is no internal dynamo within the planet. Planet Earth does not have a unique way of producing it’s magnetic field. Nor do the other planets. Each magnetic field of each planet is produced in exactly the same way, by its planetary dynamo system.

[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

[Mr. K]

seriesly- I wondered that...

[z3n]

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

[jpsb]

ping for a read later

[norraad]

.it's an enjoyable hobby?"

[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.

[mudblood]

I like that he’s actually challenging ‘accepted’ scientific views. We’ve seen what happens when people accept established science as the end of all further inquiry (global warming).

[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.”

[rod1]

Very close - we dream it.

[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

[z3n]

I understand that, and I have no problem with proposing a new hypothesis, and I have no loss of sympathy for the assault that can come from those who cling to existing theory.

I was just dis-satisfied with the summary. I should not have to read the article to find out why two phenomenon are co-existant. The way the summary was written, you must assume that the earth and it's field are coincidental.

"The New Theory: Earth’s magnetic field is not produced by an internal dynamo within the planet. The magnetic field and the planet are separate parts of a complex dynamo system surrounding the planet"

[cripplecreek]

The magnetic poles switch about every 300,000 years. On either side of the mid atlanic ridge there are perfect bands of rock with opposite magnetic poles.

[mudblood]

For his creds, I’m sure he has them at the site I linked. As for the rebuttal, I have yet to hear his response to it - but then again I didn’t read every page on the site either. I think he talks about planets that don’t have a molten core as well, and yet still have a magnetic field.

[Blue Highway]

Did you use this comment in another thread within the last week? I read this a few days ago.

[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.

[xjcsa]

Did you use this comment in another thread within the last week? I read this a few days ago.

Not that I can remember.

[silverleaf]

so there is a cycle? based on what, do you think?
when is earth next due? seems I’ve read the magnetism is now weakening