Magnetic North

[micro10]

It don't just work like you think!..In order for our Earths magnetic field to flip and stay South you would first have to get rid of our Moon there Einstein" Good luck!<br /><br /><br /><br /><br /><br />"My Fields Medal !...My Fields Medal !

 

[telfrow]

Deleted. <div class="Discussion_UserSignature"> <strong><font color="#3366ff">Made weak by time and fate, but strong in will to strive, to seek, to find and not to yeild.</font> - <font color="#3366ff"><em>Tennyson</em></font></strong> </div>

 

[drwayne]

The origins and cause and effect of pole reversal is quite a bit of an unknown, but it has happened before without losing the moon.<br /><br />http://en.wikipedia.org/wiki/Geomagnetic_reversal<br /><br />Wayne <div class="Discussion_UserSignature"> <p>"1) Give no quarter; 2) Take no prisoners; 3) Sink everything."  Admiral Jackie Fisher</p> </div>

 

[harmonicaman]

Two related items gleaned from the web:<br /><br />Associated Press Dec. 10, 2005 12:00 AM SAN FRANCISCO - Earth's north magnetic pole is drifting away from North America and toward Siberia at such a clip that Alaska may lose its spectacular Northern Lights in the next 50 years, scientists said. Despite accelerated movement over the past century, the possibility that Earth's modestly fading magnetic field will collapse is remote. The shift may mean Alaska won't see the sky lights known as auroras, which may be more visible in Siberia and Europe. The magnetic poles are part of the magnetic field generated by liquid iron in Earth's core and are different from the geographic poles, the surface points marking the axis of the planet's rotation. <br /><br /> <br />NASA Claims Polar Shift Due In 2012 <br /><br />Friday, 09 December 2005 <br />Solar System - Did you notice? In February 2001, the Sun did a magnetic polar shift. The next one is due again in 2012. NASA scientists who monitor the Sun say that our star's awesome magnetic field flipped 22 months ago, signaling the arrival of a solar maximum. But it wasn't so obvious to the average human. The Sun's magnetic north pole, which was in the northern hemisphere just a few months ago, now points south. It's a topsy-turvy situation, but not an unexpected one. "This always happens around the time of solar maximum," says David Hathaway, a solar physicist at the Marshall Space Flight Center. "The magnetic poles exchange places at the peak of the sunspot cycle. In fact, it's a good indication that Solar Max is really here." <br /><br />--------<br /><br />Earth's magnetic poles normally switch on a 500,000 year cycle (I believe) and some scientists speculate that the switch is overdue and underway! One way we measure the rate of magnetic pole reversals is by examining the magnetism in rocks adjacent to areas of spreading sea floor due to plate tectonic movement. Here's an http://volcano.und.nodak.edu/vwdocs/v</safety_wrapper

 

[micro10]

I kept my post short and to the point, "Come on, ( In order for it to stay" flipped ) As the Great William F. Buckley would say". I guess one must first better, "how should we state this" Get a bit more Intellect. First in the realm of Astro physics," Shall we say. ( Earth and the moon and the Sun work together with the earths hydro-magnetic inner core.That is why we call it" a Solar ( System) ..Sir.

 

[dragon04]

It's a widely held idea that the earth's molten and magnetic core spins at a different rate than the solid part outside of it.<br /><br />It also follows that the more magnetic core, which is not perfectly spherical, induces a current (and therefore a magnetic field) in a specific vector (direction). At a definable point, the stongest produced field will overcome the currently induced field.<br /><br />It takes a long time for it to happen. But it happens. Think of an elastic band being stretched to its breaking point. It takes an arbitrary amoun of time to reach the breaking point, but once it does, the result is "instantaneous".<br /><br />I have no reason to believe that rotating magnetic fields in opposition to one another are any different. <div class="Discussion_UserSignature"> <em>"2012.. Year of the Dragon!! Get on the Dragon Wagon!".</em> </div>

 

[dragon04]

The Earth is warming, the magnetic field is changing. Magnetic north is moving.<br /><br />I see a lot of gloom and doomspeak by environmentalists blaming human activity for all this, but how cool is it that we're here to watch processes that happen on geological timescales that we don't understand? <div class="Discussion_UserSignature"> <em>"2012.. Year of the Dragon!! Get on the Dragon Wagon!".</em> </div>

 

[najab]

I've never heard anyone suggesting that human activity is responsible for geomagnetic reversals - to do so would be insane, since we have evidence for reversals going back millions of years.

 

[CalliArcale]

Or arrogant, to presume that humans can have the slightest effect on the Earth's magnetic field. <img src="/images/icons/wink.gif" /> <div class="Discussion_UserSignature"> <p> </p><p><font color="#666699"><em>"People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly wobbly . . . timey wimey . . . stuff."</em>  -- The Tenth Doctor, "Blink"</font></p> </div>