Space X Founder Elon Musk --"We'll Evolve as a Merger of Biological and Digital Intelligence" (VIDEO)
"Are We Alone" --In a Newly Found 1939 Essay Winston Churchill "Outlines Possibility of Alien Life and Exoplanet Habitable Zones"

Mysteries of Earth's Magnetic Field Revealed in Ancient Judean Jars --"Fluctuated Violently in Past Without Ending Life on Our Planet"

 

Maxresdefault (4)


The behavior of the Earth's magnetic field that emanates from the planet's deep interior but extends far out into space and has existed for more than three and a half billion years but fluctuates daily, is one of the most enigmatic topics in physics. But now, clues can be found by detecting its intangible and mostly invisible behavior in the past, in geology and archaeological artifacts," says Dr. Erez Ben-Yosef of Tel Aviv University.

Since 1990, the magnetic North Pole has migrated almost nine hundred miles, from Axel Heiberg Island, in the high Canadian Arctic, to a site close to the true North Pole. At the same time, the over-all intensity of the field has been falling at a rate of about six per cent each century. Some believe the planet is about to lose its magnetic shield altogether, which might in turn spell an end of life on Earth. Now, using clearly dated Judahite clay jars, which were likely everyday vessels for wine or olive oil, archaeologists and geophysicists show the magnetic field has fluctuated violently before without ending life on the planet. The makers of these ancient jars, carefully stamping handles with the royal brand, had no idea that they were contributing to a twenty-first-century debate about the very heart of the planet.

 

Our planet’s history includes geomagnetic reversals that 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 recent geologic and fossil records 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 in the early 20th century.

The international team led by Ben-Yosef concludes that there was a massive geomagnetic spike in the late 8th century B.C.E.
"We call it the ‘Iron Age Spike,’ and it is the strongest field recorded in the last 100,000 years,” Ben-Yosef says. "This new finding puts the recent decline in the field’s strength into context. Apparently, this is not a unique phenomenon – the field has often weakened and recovered over the last millennia.” The Iron Age Spike brought the magnetic field to its strongest intensity in at least 100,000 years and maybe in history altogether," adds Ben-Yosef.

 

1431700241


What could have caused such a violent spike, to 2.5 times the present intensity, in the magnetic field? We have no clue, only that it happened thousands of kilometers beneath our feet, in the molten iron area of the planet. "If we have a spike, it was probably caused by turbulence or other phenomenon deep in the earth," Ben-Yosef says.

Following the 8th century spike the magnetic field weakened rapidly, losing 27% of its strength over 30 years. Then it waned from the 6th to the 2nd century B.C.E., spanning the Iron Age through the Hellenistic era in Judea.
Since the magnetic sphere is clearly important to our existence, it's critical to know what is causing it to constantly change in intensity and direction.

For 600 years, from the late 8th to the 2nd century B.C.E., these ceramic jars with very distinctive handles bearing impressions of royal stamps were manufactured in and around Judahite Jerusalem. The type of stamp changed with time according to the political situation.
Understanding this story about ancient Hebrews, the kings' jars and the planet's core involves knowing that materials that have been heated and then cooled, from igneous rocks to fired clay to burned mud bricks to bronze chickens, acquire "thermoremanent magnetization." In other words, they become weakly magnetized in the direction and intensity of the earth's magnetic field.

By analyzing the thermoremanent magnetization of a Judahite jar handlescgeophysicists can deduce the direction and magnitude of the Earth's magnetic field in prehistory.  The 67 ancient pottery handles, are a record of geomagnetic intensity at that time.

The Daily Galaxy via NASA, The New Yorker and Haaretz.com

Comments

The difference, and it's quite huge, is that then there were no electronics. The flip would lower our defense from the sun's energy which COULD fry our electronic grid. Without that, our society would be in grave danger and many would probably die.

The magnetic spikes and reversals were caused by the Mars flybys ("passovers").
They also recharged the magnetic field-which has nothing to do with an "iron core."
Since the field hasn't been recharged since the final encounter, it has been diminishing ever since. Not so good.
http://creationism.org/patten/PattenMarsEarthWars/

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Your Information

(Name is required. Email address will not be displayed with the comment.)