Tuesday, September 30, 2008

POLE SHIFT UPDATE: Earth's Magnetic Field Reversal Happening Now

by Mitch Battros - Earth Changes Media


The main magnetic field generated by turbulent currents within the deep mass of molten iron of the Earth's outer core, periodically flips its direction. This is to say that a compass needle would completely reverse pointing south rather than north. Such polarity reversals have occurred hundreds of times at irregular intervals throughout the planet's history most recently about 780,000 years ago but scientists are still trying to understand how and why.

A new study of ancient volcanic rocks, reported in the Sept. 26 issue of the journal Science, shows that a second magnetic field source may help determine how and whether the main field reverses direction. This second field, which may originate in the shallow core just below the rocky mantle layer of the Earth, becomes important when the main north-south field weakens, as it does prior to reversing, says Brad Singer, a geology professor at the University of Wisconsin-Madison.

Current evidence suggests we are now approaching one of these transitional states because the main magnetic field is relatively weak and rapidly decreasing, he says. While the last polarity reversal occurred several hundred thousand years ago, the next might come within only a few thousand years.

FULL ARTICLE: http://earthchangesmedia.com/secure/3247.326/article-9162522957.php

Every so often, Earth's magnetic field flips on its head, turning the magnetic North Pole into the South Pole and vice versa.

It last happened 780,000 years ago, and is predicted to occur again in about 1,500 years ... maybe.

The overall frequency is hard to predict — there was one period in Earth's history when the field didn't reverse for 30 million years.

Why these

flip-flops happen at all is a great riddle, but a new hypothesis on the origins of the magnetic field could shed light on the reason.

Scripps researchers gather geomagnetic signs to determine if Earth's magnetic field is currently headed toward a complete reversal

Earth's Magnetic Field Reversals Illuminated By Lava Flows Study
Science Daily (press release) - Sep 26, 2008
Ancient lava flows are guiding a better understanding of what generates and controls the Earth's magnetic field – and what may drive it to occasionally ...
Earth's Magnetic Field Expected to Flip Soon
FOXNews - Sep 26, 2008
The researchers suggest that the sporadic reversal of Earth's magnetic field occurs when the axial dipole field weakens, leaving the weaker, more disperse ...
New magnetic field could help explain Earth’s magnetic-field flipping
physicsworld.com, UK - Sep 25, 2008
The Earth’s magnetic field can reverse polarity in just 10000 years, during which time its intensity reduces to a fraction of its normal value. ...

The Earth's Magnetic Polarity is Due for a Reversal
io9, CA - Sep 18, 2008
Armed with a gigantic, spinning steel ball, researchers hope to simulate the Earth's magnetic field and discover how likely it is that our planet's magnetic ...

Popular Science
A Baby Earth
Popular Science, NY - Sep 12, 2008
And after four years of tests, it failed to generate a magnetic field similar to the real Earth’s, which shields us from the sun’s radiation and guides some ...
Surrounded by a Sea of Danger
The News, AR - Sep 2, 2008
Earth is a very precarious place. The magnetic poles are prone to reversals in polarity and its surface crust can potentially slip in position. ...

Sunspot-hurricane link proposed
Nature.com (subscription), UK - Sep 27, 2008
A new study suggests that more sunspots mean less intense hurricanes on Earth. But many hurricane experts are cool on the idea. To read this story in full ...

Hello, Sunspot! Where Have You Been?
Discovery Channel - Sep 26, 2008
So when a patch of dark spots broke out on the sun's face this week -- the first true sunspots in two months -- scientists got an inkling of what to expect ...

Mitch Battros and other solar researchers have been arguing that we are witnessing the calm before the storm of what will be the most powerful solar cycle ...

"That was the view through my Coronado PST on Sept. 28th," says Jerome Grenier of Paris, France. "What a great prominence!"

A prominence is a cloud of hot gas held in the grip of solar magnetic fields. With that in mind, watch the movie again. The motions you just witnessed are a major puzzle for solar physicists. No one understands why the top of the prominence cascades down as fast as it does; the "magnetic diffusion coefficient" of the medium shouldn't allow it. At the same time, swirls and vortices indicate an exquisite degree of magnetic control so far impossible to duplicate in Earth laboratories. How does the sun do these things? It's a beautiful mystery. If you have a solar telescope, take a look.

more images: from Jack Newton of Osoyoos, British Columbia; from Wouter Verhesen of Sittard, The Netherlands; from Larry Alvarez of Flower Mound, Texas; from Didier Favre of Brétigny-sur-Orge, France; from Robert Arnold of Isle of Skye, Scotland; from Cai-Uso Wohler of Bispingen, Germany; from P-M Hedén of Vallentuna, Sweden; from Steve Wainwright of Swansea, South Wales; from Les Cowley of the UK; from Emiel Veldhuis of Zwolle, the Netherlands; from Stephen Ames of Hodgenville, Kentucky; from Adrian Guzman of San Jose, California;

The LHC supermagnets and cooling system


CERN rivals: Melting magnets par for course
MSNBC - 22 hours ago
CERN specialists have already figured out that a connector between electromagnets failed and heated up, causing a magnet "quench," or shutdown. ...

CERN delays atom-smashing over magnet fault
Times Online, UK - Sep 19, 2008
Plans for the Large Hadron Collider (LHC) to start smashing its first particles next week have been derailed after it developed a significant fault today. ...
What happened to the Big Bang machine? BBC News
LHC experiment hits major snag with helium leak, two-month delay ... domain-B
Big bang machines atom smashing delayed due to magnet fault Thaindian.com
eFluxMedia - Times Online
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