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Mysterious ‘geomagnetic spike’ 3,000 years ago challenges our understanding of the Earth’s interior
The Conversation (UK) ^

Posted on 11/09/2017 5:14:11 AM PST by ameribbean expat

The Earth’s magnetic field, generated some 3,000km below our feet in the liquid iron core, threads through the whole planet and far into space – protecting life and satellites from harmful radiation from the sun. But this shielding effect is far from constant, as the field strength varies significantly in both space and time.

Over the last century, the field strength has changed relatively slowly: the biggest change is a 10% fall in the southern Atlantic, which is still a large enough effect to cause electronic problems for satellites that have passed through the region. However, new observations and modelling suggest that a much greater change strangely occurred around 1000BC in a much smaller region.

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Unexpectedly high field strengths around 1000BC have also been uncovered in Turkey, China and Georgia from a variety of sources. Remarkably, the field strength in India, Egypt and Cyprus around the same time was completely normal, indicating that the spike was perhaps only 2,000km wide. Such a rapid change over such a small area marks out the geomagnetic spike as one of the most extreme variations of Earth’s magnetic field ever recorded.

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


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To: ameribbean expat

Every few thousand years the polarity of the Atlantic ocean bed changes direction. Like clockwork.

The earth is old. We’ve only been writing stuff down for several thousand years.


21 posted on 11/09/2017 10:02:27 AM PST by Vermont Lt (Burn. It. Down.)
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To: skimbell

LOL I love Free Republic humor.


22 posted on 11/09/2017 11:22:58 AM PST by huldah1776 ( Vote Pro-life! Allow God to bless America before He avenges the death of the innocent.)
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To: Jmouse007

LOL I even checked the estimated year. I want to know how HE did it without messing up the perfection of the system. I wonder if anyone has looked into the opposite end of the world for a LONG NIGHT??? wow that would get cold.


23 posted on 11/09/2017 11:26:18 AM PST by huldah1776 ( Vote Pro-life! Allow God to bless America before He avenges the death of the innocent.)
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To: Jmouse007

I was wondering if anyone wrote that their sun dial stopped and the battery needs replacing.


24 posted on 11/09/2017 11:27:24 AM PST by huldah1776 ( Vote Pro-life! Allow God to bless America before He avenges the death of the innocent.)
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To: huldah1776
Time estimated at 1300 BC. If the sun and moon stood still, wouldn’t the magnetic field be stronger?

The sun and moon appeared to stand still because the earth's rotation was temporarily affected by an outside force. Read "Worlds in Collision" (Immanuel Velikovskiy, 1950) for a possible cause. It's an interesting read whether you agree with his theory or not.

25 posted on 11/09/2017 11:47:03 AM PST by JimRed ( TERM LIMITS, NOW! Build the Wall Faster! TRUTH is the new HATE SPEECH.)
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To: JimRed
Read "Worlds in Collision" (Immanuel Velikovskiy, 1950) for a possible cause. It's an interesting read whether you agree with his theory or not.

By the way, that does NOT mean that I deny God did it. But it may explain HOW He did it.

26 posted on 11/09/2017 11:50:08 AM PST by JimRed ( TERM LIMITS, NOW! Build the Wall Faster! TRUTH is the new HATE SPEECH.)
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To: Alter Kaker

A wizard did it


27 posted on 11/09/2017 10:11:09 PM PST by Oztrich Boy (don't forget to mouse your sisterhooks)
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