EARTH'S CHANGING MAGNETIC POLES
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From: usenet on 27 Jul 2010 22:01 Earth's changing magnetic poles Noted Russian scientist Anatoly Levitin explains what's happening to our world and how it's impacting our lives Op-Ed The Pioneer http://www.dailypioneer.com Wednesday, July 28, 2010 When will the Earth's magnetic poles change? What are the possible consequences? And is there any scientific ground to expect the Doomsday in 2012? Anatoly Levitin, head of the geomagnetic variations laboratory at the Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation of the Russian Academy of Sciences answers these and other frequently asked questions. Q A change of the Earth's magnetic poles has recently become a big issue for journalists and is often mentioned in the media and on the Internet. They often put forward conflicting information, prompting questions. What is a magnetic field? What processes take place in it? And lastly, can the poles change or shift? A A magnetic field is one of the Earth's non-physical fields, the others being the seismic field, gravity, envelopes and so on. It is created by electricity generated inside and outside the Earth. A magnetic field is traditionally divided into a permanent internal field and an external alternating magnetic field, which is a component of the magnetosphere. To begin with, an electric current generated inside the Earth, on the boundary of the solid core (about 3,000 km), creates a magnetic field. That permanent field keeps changing, but very slowly, because it has existed for a billion years. Q How do magnetic fields influence life on Earth, its climate and sea currents? A That magnetic field's main function is to protect the surface from high-energy particles bombarding the Earth from every direction of the galaxy, in particular from the Sun. That magnetic field deflects a considerable portion of the energy. Thanks to this protection, mankind has a comfortable, habitable environment and a tolerable radiation level. The magnetic field also ensures the Earth's magnetosphere, the near- Earth space where that magnetic field plays a crucial role. We live in the Sun's atmosphere. The magnetosphere protects the Earth from the unfavourable influence of the Sun; this is one of the magnetic field's benefits. When that field changes, the Sun's influence on us will change accordingly. If the magnetic field weakens, solar winds will come closer to the Earth and will have a stronger, possibly unfavourable, effect on man. Q How dangerous is the potential pole shift? A Pole shift indicates a change in the poles. We have only approximate information about processes in the near-Earth environment. Before the first satellite was launched, mankind could only guess about the existence of a solar wind. We didn't know about the magnetosphere. Today we know that magnetic fields are latitudinally dependent. The magnetic field lines are most intense at the poles. But during powerful disturbances the field lines change in the area of the polar caps -- opening up at about 10 degrees latitude. A vortex appears sucking particles into that part of the Earth where there is no magnetic field protection. Q If the poles shift dramatically, as some scientists and astrologists predict, will the Sun kill all life on the Earth? A There is no point in being overly dramatic. There are people in this country doing good work -- making calculations regarding a possible decrease in the magnetic field. It is extremely difficult to assess the field's decrease. It is studied at observatories and by satellite. Data about field changes are provided by surveys carried out this year, in three years, in five years, and so on. Q So, you could announce that the world will end in half an hour? A No. First we determine the speed of our measurements, which are then compared to other data, finally determining when and how the magnetic field will decrease. But different people give different answers to this, and there could be sun storms that last only seconds, ruling out forecasts a thousand years ahead. Q But the poles can shift relatively quickly, as happened when the dinosaurs became extinct and Atlantis perished. According to the Maya calendar, the next pole shift will happen on December 21, 2012, and those who fail to adjust will die while others will be able to live in four dimensions. Many scientists are writing about this. A I don't think any scientist would write about that seriously. We have indirect data based on the assumption that the magnetic field could be absorbed into the surface environment. Take magnetites, the minerals that can naturally be magnetised, which could, under certain physical conditions, "absorb" the magnetic field. Q That is, they could store information? A Yes, they could. But, you see, we need to go back 2,00,000- 3,00,000 years. http://dailypioneer.com/272193/Earth%E2%80%99s-changing-magnetic-poles.html More at: http://www.dailypioneer.com Jai Maharaj, Jyotishi Om Shanti o Not for commercial use. Solely to be fairly used for the educational purposes of research and open discussion. The contents of this post may not have been authored by, and do not necessarily represent the opinion of the poster. The contents are protected by copyright law and the exemption for fair use of copyrighted works. o If you send private e-mail to me, it will likely not be read, considered or answered if it does not contain your full legal name, current e-mail and postal addresses, and live-voice telephone number. o Posted for information and discussion. Views expressed by others are not necessarily those of the poster who may or may not have read the article. 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From: pete on 27 Jul 2010 23:10 Dr. Jai Maharaj wrote: > A A magnetic field is one of the Earth's non-physical fields, the > others being the seismic field, gravity, envelopes and so on. What is a seismic field? -- pete
From: Cwatters on 28 Jul 2010 11:35 "pete" <pfiland(a)mindspring.com> wrote in message news:4C4F9F8A.1769(a)mindspring.com... > Dr. Jai Maharaj wrote: > >> A A magnetic field is one of the Earth's non-physical fields, the >> others being the seismic field, gravity, envelopes and so on. > > What is a seismic field? > > -- > pete Must be related to an envelope field?
From: T. Keating on 29 Jul 2010 10:06 On Wed, 28 Jul 2010 02:01:04 GMT, usenet(a)mantra.com and/or www.mantra.com/jai (Dr. Jai Maharaj) wrote: >Earth's changing magnetic poles > >Noted Russian scientist Anatoly Levitin explains what's happening to >our world and how it's impacting our lives > >Op-Ed >The Pioneer >http://www.dailypioneer.com >Wednesday, July 28, 2010 > >When will the Earth's magnetic poles change? What are the possible >consequences? And is there any scientific ground to expect the >Doomsday in 2012? Anatoly Levitin, head of the geomagnetic variations >laboratory at the Institute of Terrestrial Magnetism, Ionosphere and >Radiowave Propagation of the Russian Academy of Sciences answers >these and other frequently asked questions. snippy... remainder of post.. http://www.nasa.gov/vision/earth/lookingatearth/29dec_magneticfield.html "The north and the south poles swap places. Such reversals, recorded in the magnetism of ancient rocks, are unpredictable. They come at irregular intervals averaging about 300,000 years; the last one was 780,000 years ago. Are we overdue for another? No one knows." "Reversals take a few thousand years to complete, and during that time--contrary to popular belief--the magnetic field does not vanish. "It just gets more complicated," says Glatzmaier. Magnetic lines of force near Earth's surface become twisted and tangled, and magnetic poles pop up in unaccustomed places. A south magnetic pole might emerge over Africa, for instance, or a north pole over Tahiti. Weird. But it's still a planetary magnetic field, and it still protects us from space radiation and solar storms." Humanity will mostly be wiped out by Anthropogenic Global Warming (and it's secondary effects, crop failure, famine, war, disease, etc) longggg before we're significantly impacted by the next magnetic` pole shift. I.E. Keep your focus on the known threats (Polution, over population, reseource depleteion, etc.).
From: Me, ...again! on 29 Jul 2010 15:05
On Thu, 29 Jul 2010, T. Keating wrote: > On Wed, 28 Jul 2010 02:01:04 GMT, usenet(a)mantra.com and/or > www.mantra.com/jai (Dr. Jai Maharaj) wrote: > >> Earth's changing magnetic poles >> >> Noted Russian scientist Anatoly Levitin explains what's happening to >> our world and how it's impacting our lives >> >> Op-Ed >> The Pioneer >> http://www.dailypioneer.com >> Wednesday, July 28, 2010 >> >> When will the Earth's magnetic poles change? What are the possible >> consequences? And is there any scientific ground to expect the >> Doomsday in 2012? Anatoly Levitin, head of the geomagnetic variations >> laboratory at the Institute of Terrestrial Magnetism, Ionosphere and >> Radiowave Propagation of the Russian Academy of Sciences answers >> these and other frequently asked questions. > > snippy... remainder of post.. > > > http://www.nasa.gov/vision/earth/lookingatearth/29dec_magneticfield.html > > "The north and the south poles swap places. Such reversals, recorded > in the magnetism of ancient rocks, are unpredictable. They come at > irregular intervals averaging about 300,000 years; the last one was > 780,000 years ago. Are we overdue for another? No one knows." > > "Reversals take a few thousand years to complete, and during that > time--contrary to popular belief--the magnetic field does not vanish. > "It just gets more complicated," says Glatzmaier. Magnetic lines of > force near Earth's surface become twisted and tangled, and magnetic > poles pop up in unaccustomed places. A south magnetic pole might > emerge over Africa, for instance, or a north pole over Tahiti. Weird. > But it's still a planetary magnetic field, and it still protects us > from space radiation and solar storms." > > Humanity will mostly be wiped out by Anthropogenic Global Warming (and > it's secondary effects, crop failure, famine, war, disease, etc) > longggg before we're significantly impacted by the next magnetic` pole > shift. > > I.E. Keep your focus on the known threats (Polution, over population, > reseource depleteion, etc.). "etc" includes crook executives who steal money from the underlings and manipulative heads of state that get underlings to die and bleed in poorly justifiable wars for the benefit of heads of state. |