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NASA: Earth's Last Full Magnetic-Pole Reversal Occurred 780,000 Years Ago --"We Are Over Due"
The Daily Galaxy ^ | 1 Feb, 2016

Posted on 02/01/2017 9:05:34 PM PST by MtnClimber

The Earth’s continuously changing magnetic field surrounds the planet like an invisible force field – deflecting highly charged solar particles. Reversals are the rule, not the exception. Earth has settled in the last 20 million years into a pattern of a pole reversal about every 200,000 to 300,000 years, although it has been more than twice that long since the last reversal, the Brunhes-Matuyama, that occurred around 780,000 years ago. A temporary reversal, the Laschamp event, occurred around 41,000 years ago, and lasted less than 1,000 years with the actual change of polarity lasting around 250 years.

Our planet’s history includes at least several hundred global reversals, where north and south magnetic poles switch places, and take a weaker and more complex form that may fall to 10% of the present-day strength with magnetic poles at the equator, or even the simultaneous existence of multiple “north” and “south” magnetic poles.

These geomagnetic reversals occur a few times every million years on average. However, the interval between reversals is very irregular and can range up to tens of millions of years. There can also be temporary and incomplete reversals, known as events and excursions, in which the magnetic poles move away from the geographic poles – perhaps even crossing the equator – before returning back to their original locations.

Many doomsday theorists have tried to take this natural geological occurrence and suggest it could lead to Earth's destruction. But would there be any dramatic effects? NASA's answer, from the geologic and fossil records we have from hundreds of past magnetic polarity reversals, seems to be 'no.' But the magnetic north pole is moving faster now, actually, as scientists estimate the pole is migrating northward about 40 miles per year, as opposed to about 10 miles per year...

(Excerpt) Read more at dailygalaxy.com ...


TOPICS: Astronomy; Science
KEYWORDS: astronomy; brunhesmatuyama; earth; geomagneticreversal; laschampevent; magneticfield; magneticpolereversal; magnetism; poleshift; science
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To: MrEdd

Bush’s fault, no, Trump’s fault!


41 posted on 02/02/2017 4:19:20 AM PST by wastoute (Government cannot redistribute wealth. Government can only redistribute poverty.)
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To: raybbr

http://magneticreversal.org/

https://en.wikipedia.org/wiki/Geomagnetic_reversal


42 posted on 02/02/2017 5:45:47 AM PST by pa_dweller (President Donald Trump, President Donald Trump. Because I know you like seeing it.)
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To: MtnClimber

They are telling people something is about to happen, just not what. 3 asteroids or meteors have passed close to the Earth in the last couple of weeks and another large one is on the way. People are showing on youtube pictures and videos of 2 suns or a planet and the sun. Earthquakes are picking up.


43 posted on 02/02/2017 6:12:05 AM PST by Lady Heron
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To: MtnClimber
...like an invisible force field

No, it IS an invisible force field.

Anyway, have to check the return policy on that new hiking compass I just bought...

44 posted on 02/02/2017 6:31:57 AM PST by Moltke (Reasoning with a liberal is like watering a rock in the hope to grow a building)
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To: MtnClimber

Think of all the old Fords with positive grounds that will be useful again.


45 posted on 02/02/2017 6:37:07 AM PST by OKSooner ("What's the frequency, Kenneth?")
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To: MtnClimber

I have made numerous ‘ S’ and ‘N’ labels to affix and correct my compasses.
Have to wait and see concerning the Garmin.


46 posted on 02/02/2017 6:55:02 AM PST by Vinnie
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To: OKSooner
......old Fords with positive grounds...

LOL I remember those. Saw a guy explode a battery trying to jump start an old Ford . Hooked up a 12V battery to the Ford 6V and polarity reversed. BOOM !
How he avoided getting acid all over himself, I don't know.

47 posted on 02/02/2017 6:59:43 AM PST by Vinnie
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To: Vinnie

Someone was looking out for him.


48 posted on 02/02/2017 7:10:05 AM PST by OKSooner ("What's the frequency, Kenneth?")
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To: raybbr
"I’m curious to see the log where the reversals were recorded previously. How on earth to they know when this happened?"

An effective "log" of the earth's magnetic polarity can be found on the ocean floor, where the tectonic plates are moving apart from each other.

As the plates separate, molten magma pushes in the gap and solidifies, trapping within it iron molecules oriented in the direction of the field. Over time, these "filled in gaps" form something almost like a bar code stripe, and with a magnetometer you can see the directions change in the different "stripes".

Also, by observing how long on average it takes the current "stripes" to emerge, you can start to tell how long ago things took place, by counting the stripes outward, much like you count tree rings to judge how old the tree is.

It is not that mysterious, or even difficult to comprehend, you just have to be a serious geologist and be willing to go to really weird areas of the Earth to gather data.
49 posted on 02/02/2017 8:17:50 AM PST by Rebel_Ace (HITLER! There, Zero to Godwin in 5.2 seconds.)
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To: Lady Heron

Yes, this is propaganda because of the approach of Nibiru. Full of false information and tranquilizer pills. Another NASA exploration of the solar system just began, with a phony stated purpose. Pole shift, earthquakes, volcanoes, warming all related to this. Debris field will affect us too. National Panic Avoidance Agency.


50 posted on 02/02/2017 8:31:38 AM PST by firebrand
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To: Telepathic Intruder

That was very “Douglas Adams”-ish. Well done, sir!


51 posted on 02/02/2017 8:42:44 AM PST by Don W ( When blacks riot, neighborhoods and cities burn. When whites riot, nations and continents burn.)
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To: Don W

I consider Hitchhiker’s Guide to be a masterpiece, especially the sequels but not the recent movie (which wasn’t bad but didn’t really capture the ‘essence’ very well. You just have to read it).


52 posted on 02/02/2017 12:23:00 PM PST by Telepathic Intruder (The only thing the Left has learned from the failures of socialism is not to call it that)
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To: MtnClimber
Someone is flipping a switch. Maybe it is Shiva.
ping
53 posted on 02/02/2017 2:05:39 PM PST by minnesota_bound
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To: Glad2bnuts

#23 It is caused by those south of the equator flushing theirs johns in reverse.


54 posted on 02/02/2017 2:16:01 PM PST by minnesota_bound
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