Earths Magnetic Field

[nick c]

I'm not ready to commit to any stand on field reversal as per the vases mentioned. It might mean something, it might not. Not enough information.

No commitment necessary. It was only put out there as an anomaly that could be a clue to further understanding. Certainly it is a testable idea, that is, we have plenty of vases from differing periods of time, including the present, that could be examined. Experiments could be devised to shed some light on the intricacies of how magnetic fields are impressed on vases.
-can we show ways in which vases could be fired that would yield remnant magnetism that is the reverse of the ambient (Earth's) magnetic field?
The idea could be falsified by firing a vase, today, that displays the properties of a reversed (with respect to the Earth's magnetic field) remanent magnetic field.
-do we know for certain the position of the ancient vases when fired in the kiln? as was stated in a previous post, the flow of the glaze indicates the orientation of the vase in the kiln.

Actually, these issues have been addressed as soon as Folgheraiter published his work, and have been discussed by researchers ever since:

If the magnetisation of the terra-cotta had in any way altered since they were broken, it is clear that the different portions would have been differently affected, and the mended vases would have shown somewhat irregular magnetisation. So far from this being the case, they were found to be as regularly magnetised as those which had been excavated entire, the opposite poles at the mouth and base being exactly 180 degrees apart.

Nature, vol. 55, March 1897 edited by Sir Norman Lockyer
http://books.google.com/books?id=50cCAA ... es&f=false

Folgheraiter's methods are considered pioneering, and he usually gets an obligatory mention as the originator of the field of geomagnetic studies:

Since Folgheraiter (1899) worked on the remanent magnetization of Greek and Etruscan vases, the study to determine the geomagnetic secular variation had been continued mainly in France (Mercanton, 1918a, b; Chevallier, 1925; Thellier, 1037).
After 1950's, it has been studied systematically at various district of the world...

Dept of Material Physics Faculty of Engineering Science, February, 1980 Osaka University
http://www.sci.kumamoto-u.ac.jp/earthsc ... Thesis.pdf

The above source is of interest because it basically uses Folgheraiter's technique to analyze Japanese vases over the last 2000 years, to plot movements of the Earth's magnetic field, though they reveal somewhat of a sine curve (the Earth's magnetic poles drift noticeably) all the Japanese vases from this later period are all in the northern hemisphere of the magnetic field. To me this makes the reversed polarity of the 8th C BCE Etruscan and Greek vases even more interesting. Certainly, it is a subject that warrants futher study.
Keep in mind that the reversed polarity (ca. 8th C BCE vases) was detected in many different samples not just one vase or shard. Folgheraiter concluded that either the magnetic pole shifted by more than 30 degrees, so that Italy and Greece were then south of the magnetic equator or there was a total reversal of the magnetic field.
Vases are arguably a better source for information (on the orientation of the magnetic field) than rocks because we have a better idea of the time frame involved. Radiometric dating of rock is of dubious value in the Electric Universe, as it is a technique based on uniformitarian assumptions.

Nick

[webolife]

Radiometric dating is not only a product of uniformitarian decay rate assumptions, but also of presumptions about the "zero point" of decay. For example, Uranium is rarely [never?] found in the universe in pure form, but nearly always mixed in ratios not far from 50/50 with Lead. Despite any protestations to the contrary, it must be assumed that U started out at 100% before any conclusions can be drawn about the age of a sample. This may never have been the case under any conditions in the universe, let alone on earth. Geomagnetic reversal history calibrated with radiometric dating assumptions becomes equally subject to uniformitarian dogma.

[Pianoman]

Hi All,

The speed at which the north magnetic pole is traversing is becoming more noticeable. Latest news from national geographic suggest the movement is 64Km per year in the direction of Russia (I'm sure the Dick Cheney will blame them for steal the pole from North America)

Here's the hews release:-

http://news.nationalgeographic.com/news ... -core.html

Have there been any predictions made here that would account for this increased rate of movement?

Thanks,

Pianoman

[Pianoman]

Apologies for the bad spelling /grammar on the post above - serves me right for staying up way too late with nothing better to do

[jjohnson]

Yes. Sarah Palin stated that it can no longer be seen from her state.

[mharratsc]

Do the helical currents flowing from the anode to the cathode in a novelty plasma ball hold still, or do they meander around all over inside the sphere?

Unless induced to sit still (by putting your fingertip on the outside of the sphere) they wander around a bit- I imagine it is the same way with larger current pairs feeding into the planetary poles... and even the Sun's plasmasphere as well! However, our race probably hasn't been around long enough to see those pairs wander very much. Even as it stands, they are calling them 'local fluff' thinking them nothing but clouds, vs. seeing them for what they are (or so I believe, anyway.)

If you do not think of the north magnetic pole as the 'north end' of a bar magnet, and rather think of it as the point of highest focus density of the north end of the Earth's EM field... it starts to make sense that it will wander around a bit at that point, doesn't it?

That's the way I see it, at any rate

Mike H.

[james weninger]

Pianoman,
I would like to suggest this as a tentative solution which would fit with EU theory. Let's say the mainsream is wrong once again, and it is'nt the Earth's core responsible for Earth's magnetic field. Let us suppose that the Earth is charged, and then spinning alone would generate a magnetic field. At first, you may counter that a spinning,charged Earth should have a magnetic pole lined up with it's spin axis. But thaty is only true if the fixed land mass holds all the charge. If the oceans are charged, then the circulation of the oceans represent a current flow that also generates a magnetic field. Now while the ocean currents are driven in a large part by the Earth's spin, the shape of the continents stop ocean currents from being symmetrical with respect to Earth's spinaxis. So Earth's magnetic pole would not be lined up with the spin axis.
You have probably read how the polar ice caps melting have changed the flow of the ocean currents, and that that change of ocean currents is accelerating quickly in recent times. We would therefore have a mechanism which would cause an increasing rate of magnetic pole wander.

[RayTomes]

I have started a new thread http://www.thunderbolts.info/wp/forum/phpB ... 30&p=31514 which deals with the topic of planetary alignments affecting sunspot cycles. It also raises the possibility of calculating Earth magnetic field reversals, which is closely aligned to the issue of this thread.

[junglelord]

For the record the Polar Ice cap has grown the last four years in a row.
Global Warming is a Fraud of course.

[james weninger]

A search turned up this: http://news.nationalgeographic.com/news ... amo_2.html
Looks like someone already thinks oceans affect magnetic fields. I'm impressed it was done by someone not even into EU theory. (doesn't even consider net ocean charge) I'm even more convinced now that there is some merit to the idea.

[flyingcloud]

A search turned up this: http://news.nationalgeographic.com/news ... amo_2.html
Looks like someone already thinks oceans affect magnetic fields. I'm impressed it was done by someone not even into EU theory. (doesn't even consider net ocean charge) I'm even more convinced now that there is some merit to the idea.

the atmospheric ocean as well, chemically, atomically, earth is a huge spin-battery

the dielectric has incredible influence
thanks JL

[Dotini]

Pianoman,
I would like to suggest this as a tentative solution which would fit with EU theory. Let's say the mainsream is wrong once again, and it is'nt the Earth's core responsible for Earth's magnetic field. Let us suppose that the Earth is charged, and then spinning alone would generate a magnetic field. At first, you may counter that a spinning,charged Earth should have a magnetic pole lined up with it's spin axis. But thaty is only true if the fixed land mass holds all the charge. If the oceans are charged, then the circulation of the oceans represent a current flow that also generates a magnetic field. Now while the ocean currents are driven in a large part by the Earth's spin, the shape of the continents stop ocean currents from being symmetrical with respect to Earth's spinaxis. So Earth's magnetic pole would not be lined up with the spin axis.
You have probably read how the polar ice caps melting have changed the flow of the ocean currents, and that that change of ocean currents is accelerating quickly in recent times. We would therefore have a mechanism which would cause an increasing rate of magnetic pole wander.

Here is an explanation of the Earth's magnetic field. What, if anything, is wrong with it? Is it that charge on the Earth is hard to measure due to lack of a handy reference?

Respectfully,
Dotini

[remelic]

Hey everyone! Here is an article about measurements that were taken on the Earth's Magnetic field and how the motion of the moon has a lot to do with the creation of electric currents in the upper crust. Interesting.

http://www.rdmag.com/News/2010/12/Envir ... rths-core/

Cheers.

[Osmosis]

An alleged 25 Gauss field, driven by a theoretical dynamo?

[flyingcloud]

Iron Age Copper Reveals Earth’s Stronger, Faster Magnetic Field

SAN FRANCISCO — Slag left over from Iron Age copper smelting shows the Earth’s magnetic field was stronger and more variable than scientists ever imagined.

“This is a very challenging result,” said geomagnetist Luis Silva of the University of Leeds, who was not involved in the new work. “It’s completely outside of anything we thought could be happening in the core.”

The Earth’s magnetic field comes from the movement of molten iron in the core. The field’s strength and structure are constantly changing. But paleomagnetists (scientists who study the history of the Earth’s magnetic field) thought the changes were usually small and slow, fluctuating by about 16 percent over the course of a century.

But a new study of ancient copper mines in southern Israel found that the strength of the magnetic field could double and then fall back down in less than 20 years.

“The magnetic field reached an intensity that was much higher than anyone had ever thought before, two and a half times the present field,” said graduate student Ron Shaar of the Hebrew University of Jerusalem, lead author of the new study. “And you can have dramatic changes in the intensity of the field in periods of less than decades.” Shaar presented his results in a poster here at the American Geophysical Union meeting Dec. 14, and in a paper to appear in Earth and Planetary Science Letters.


To measure the strength of the magnetic field, Shaar and colleagues turned to piles of waste metal left near an ancient Egyptian copper mine.

When melted iron cools rapidly, it freezes with a signature of the Earth’s magnetic field at that instant. Paleomagnetists have traditionally studied the glass-like rocks thrown from volcanoes to build a picture of how the magnetic field has changed over time. Their measurements, plus theoretical models, showed that the magnetic field’s strength peaked around 3,000 years ago in the middle Egypt’s Iron Age.

“We don’t have volcanic glass in Israel, but we do have slag,” Shaar said. When the ancient Egyptians (in what is now Israel) melted ore to produce copper, they created a lot of leftover molten rock that they threw immediately on a waste heap. The rock cooled quickly, preserving a signature of the magnetic field.

“It’s like a small scale lava flow,” Shaar said.

To see what the magnetic field was doing 3,000 years ago, Shaar and his colleagues collected slag samples from the ancient copper mines of Timna in southern Israel. They found remnants of wheat, dates, grapes and human hair, too, which allowed them to use carbon dating to figure out how long ago the slag layers were laid down. Combined with slag from a previous study of the Khirbat en-Nahas mines to the northeast in Jordan, their samples spanned almost two centuries, from 3,050 to 2,870 years ago.

Back in the lab, the team melted and re-froze some of the slag in the presence of a known magnetic field, to make sure they could trust the rock to faithfully trap the field strength. Then they measured the field strength in the raw slag.

They found that the magnetic field abruptly spiked twice during the 180 years they studied, once around 2,990 years ago and once around 2,900 years ago. Both times, the field jumped up in strength and then fell by at least 40 percent in the space of about 20 years.

“These geomagnetic spikes are very different from what we see now or have seen before,” Shaar said.

“He sees the field changing 5 to 10 times faster than anything else we have seen so far,” said geomagnetist Cathy Constable of the Scripps Institute of Oceanography in San Diego, who makes global maps of the changing magnetic field but was not involved in the new work.

Constable notes that the spikes seem to happen only in the part of the Middle East that Shaar studied, not everywhere on Earth. That suggests that the spike could be caused by a small piece of especially magnetic molten iron moving through the Earth’s core right under Israel.

Shaar and his colleagues plan to visit Roman mines in Cyprus to see if similar spikes happened there.
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How do these localized anamoles indicate planetary embodiment