Posted on 11/27/2015 7:34:31 PM PST by BenLurkin
Why should be we worried about a polarity flip?
The magnetic field protects us from harmful solar radiations and cosmic rays. If these start fading away, it may affect every living creature on Earth. An increase in radiation exposure may not only lead to serious health outcomes, but also some genetic disorders could occur. Some biologists even fear that direct exposure to harmful solar radiations may result in mass extinctions.
Not only could some severe health consequence fallow the weakening of magnetic field. In a less concerning outcome, but still very worrisome it could lead to a severe disturbance in satellites, power grids, mobile networks and technology.
Why should be stop worrying about it?
The findings show that even though the magnetic field is dropping fast, the current field intensity has a long way to fall before reaching an unstable level that would lead to a setback. This means that the field is still unusually strong. The researchers found that the time-averaged geomagnetic field intensity over the past 5 million years is about 60% of the fieldâs intensity today.
(Excerpt) Read more at pulseheadlines.com ...
The so-called logic in this article is beyond stupid.
Maybe if we create a new multi-billion dollar tax we can stop this from happening...
Just turn them around and you’ll be OK.
“In order to stop the pole flip, we need to build giant electro-magnets and mount them on extremely tall towers at evenly spaced out locations on the planetâs surface.”
Nope. The only solution is to make the pole flippers drop their jaws in awe when Obama goes to Paris and solves pole flipping with Global Warming Treaties.
If you were to look at the magnetic direction of the crust on the Atlantic surface, it would look like a parquet floor. The direction would just change...without a lot of space in between. That points to a sudden shift, geologically speaking. “sudden” is a relative term I guess.
Thanks, that will be easier than walking backwards!
I read a while ago that the north magnetic pole has been moving more rapidly in recent decades. Could that be leading up to a flip? Someone suggested that they flip at roughly 60,000 intervals. Anyone know if this is right? Also, when was the last time they flipped? I think the author is confusing fallow fields with consequences that follow.
As I understand it (which isn’t all that much) there won’t be much different after the polarity shifts.
But the risk is in the period of shifting, while the magnetic fields lose the strength to shield against radiation from space.
Or something like that.
Most of what you said or asked about is under debate, but theorized as possible. A simple google search could answer your question about the intervals and the last time it flipped.
Here’s an interesting question. If the north pole has been moving more rapidly, has the south pole done the same (stayed in alignment with the north) or not ? If not, why not ?
Next time I’m out hiking the bottom of the Atlantic, I’ll keep an eye out for those holes.
The consequences are not all that horrible. There will still be a magnetic field. We will still be protected.
Compasses will have to be adjusted. Butterflies might migrate the wrong way. But there isn’t much to do about that.
I worry that the earth might stop spinning and we’ll all float out into space........
YES! An electromagnetic spectrum tax. . . tax everything that uses the electromagnetic spectrum in some way. Just think of it. Every car, every speaker, every TV, every computer, every radio, every light, every heater, every photon, every sound wave, every muscular movement, EVERYTHING!
It's an untapped revenue source for government spending. If the Liberals work it right, there'll be no money left in ANYONE's pockets at all. Ah, leftist nirvana!
EiU, p 146 (and referred to on p 202):The observation was made on clay fired in kilns by the Etruscans and Greeks. The position of the ancient vases during firing is known. They were fired in a standing position, as the flow of the glaze testifies. The magnetic inclination or the magnetic dip of the iron particles in the fired clay indicates which was the nearest magnetic pole, the south or the north.
In 1896 Giuseppe Folgheraiter began his careful studies of Attic (Greek) and Etruscan vases of various centuries, starting with the eighth century before the present era. His conclusion was that in the eighth century the earth's magnetic field was inverted in Italy and Greece. Italy and Greece were closer to the south than to the north magnetic pole.
P.L. Mercanton of Geneva, studying the pots of the Hallstatt age from Bavaria (about the year -1000) and from the Bronze Age caves in the neighborhood of Lake Neuchatel, came to the conclusion that about the tenth century before the present era the direction of the magnetic field differed only a little from its direction today, and yet his material was of an earlier date than the Greek and Etruscan vases examined by Folgheraiter. But checking on the method and the results from Folgheraiter, Mercanton found them perfect.
An ancient vase found by F.A. Forel in Boiron de Morges, on Lake Geneva, was broken and its pieces were scattered and lay in all directions; when assembled, they all showed one and the same magnetic orientation, which proves again that the magnetic field of the earth was unable to change the orientation originally acquired by the clay when fired and cooled in the kiln.
Large changes of the earth's magnetic fields in historical timesBy measuring the magnetic properties of bricks and other accurately dated human artifacts, geophysicists can reconstruct the history of the local magnetic field. Near Loyang, China, the field was as much as 54% higher in 300 A.D. than it is now. It was 15% higher in 1500 A.D. In 1000, it was less than today's value.
by William R. Corliss
Science Frontiers #22: Jul-Aug 1982
(Wei, Q.Y., et al; "Intensity of the Geomagnetic Field near Loyang, China, between 500 BC and AD 1900," Nature, 296:728, 1982.)
Comment. Direct measurements of the earth's field go back only a few hundred years, but they are consistent with the data reconstructed from artifacts, both showing a steady decrease since 1500. No one has estimated the effects of these substantial changes on radiocarbon dating and, perhaps, human biology.
"Earth In Upheaval", Immanuel Velikovsky, p 133Most interesting is the discovery that the last time the reversal of the magnetic field took place was in the eighth century before the present era, or twenty-seven centuries ago. The observation was made on clay fired in kilns by the Etruscans and Greeks.
The position of the ancient vases during firing is known. They were fired in a standing position, as the flow of the glaze testifies. The magnetic inclination or the magnetic dip of the iron particles in the fired clay indicates which was the nearest magnetic pole, the south or the north.
In 1896 Giuseppe Folgheraiter began his careful studies of Attic (Greek) and Etruscan vases of various centuries, starting with the eighth century before the present era. His conclusion was that in the eighth century the earth's magnetic field was inverted in Italy and Greece. 7 Italy and Greece were closer to the south than to the north magnetic pole.
P. L. Mercanton of Geneva, studying the pots of the Hallstatt age from Bavaria (about the year 1000) and from the Bronze Age caves in the neighborhood of Lake Neuchatel, came to the conclusion that about the tenth century before the present era the direction of the magnetic field differed only a little from its direction today, and yet his material was of an earlier date than the Greek and Etruscan vases examined by Folgheraiter. But checking on the method and the results of Folgheraiter, Mercanton found them perfect.
An ancient vase found by F. A. Forel in Boiron de Morges, on Lake Geneva, was broken and its pieces were scattered and lay in all directions; when assembled, they all showed one and the same magnetic orientation, which proves again that the magnetic field of the earth was unable to change the orientation originally acquired by the clay when fired and cooled in the kiln. 8
These researches, continued and described in a series of papers by Professor Mercanton, presently with the Service Meteorologique Universitaire in Lausanne, show that the magnetic field of the earth, not very different from what it is today, was disturbed sometime during or immediately following the eighth century to the extent of complete reversal.
[footnotes]
7 G. Folgheraiter in Rendi Conti del Licet, 1896, 1899; Archives des sciences physiques ei naturelles (Geneva). 1899; Journal de physique, 1899; P. L. Mercanton, "La m&hode de Folgheraiter et son r61e en geophysique," Archives des sciences physiques et naturelles. 1907.
8 Bulletin de la Societe Vaudoise des sciences naturelles, Stance du 15 decembre 1909.
9 Manley speaks of "the possibility of its [earth's magnetic field] reversal in historical times, 2500 years ago, to be cleared up by more research." However, the more exact date is, according to the original works of Folgheraiter and Mercanton, the eighth century before the present era, or shortly thereafter.
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