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Are we heading to a pole shift?
#1
Ordinary Compasses Thrown Off by Changes in Earth's Magnetic Field

Quote:The Earth's magnetic field is changing at an increasing rate, throwing off airports and altering the aurora borealis -- and its effect on ordinary compasses could mean the difference between homeward bound and hopelessly lost.

Something else to worry about. Orienteering will be impacted hard, women, children and the poor especially.

Is Global Warming causing all the trouble we see today, from the rebellious right to the Arab discontent to wandering compass's?

Nonetheless, a rapid pole shift could be exciting.
Jefferson: I place economy among the first and important virtues, and public debt as the greatest of dangers. To preserve our independence, we must not let our rulers load us with perpetual debt. We must make our choice between economy and liberty, or profusion and servitude. If we can prevent the government from wasting the labors of the people under the pretense of caring for them, they will be happy.
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#2
This has been discussed for the last couple of months....fox finally noticed.

Quote:“Reversals -- which is the changing of the polarity of the magnetic field -- that typically takes about 10,000 years to happen,” Love told FoxNews.com. And “10,000 years ago civilization did not exist. These processes are very slow and therefore, we don’t have anything to worry about.”

Love is an idiot. A serious decrease in magnetic field will lead to increase in radiation, and impact of (much) higher rate of mutations and cancers on civilization may be something to worry about.
Sanders 2020

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#3
jt Wrote:Is Global Warming causing all the trouble we see today, from the rebellious right to the Arab discontent to wandering compass's?
.

Or...

is the changing magnetic field causing all of the trouble, including Global Warming?

Wink1
I know you think you understand what you thought I said,
but I'm not sure you realize that what you heard is not what I meant!
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#4
why would it do this? earth's core is molten iron, and unless it stops rotating, there is a magnetic field. we have no sense for magnetism (though german scientists successfully experimented with giving a test person one).
"You know, Paul, Reagan proved that deficits don't matter." Dick Cheney
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#5
That's a great question,why would it do this. What would be a catalyst for this?
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#6
when the core freezes solid, and stops rotating. can't happen, radioactive decay delivers limitless energy.
"You know, Paul, Reagan proved that deficits don't matter." Dick Cheney
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#7
I thought this happened all the time.
[Image: 760.png]
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#8
Yes magnetic pole reversals have happened numerous times in geological history. We know this because iron particles in molten rock reflect the prevailing polarity when the rock cools.

Broadly there are periods of time spanning tens of millions of years where reversals are common, separated by similarly long periods with no reversals. We are currently in a period of frequent reversals, the last was some 780,000 years ago, though periodicity is so variable you can not predict when the next may occur.

We've not observed a polar reversal, on the geological time scale they appear instantaneous, but what's that on a human scale?

Computer studies in the 90s by Glatzmaier and Roberts successfully simulated polar reversals, this process occurred over an equivalent time span of approximately 1,000 years ( The Geodynamo ). Importantly in this study, the Earth's magnetic field doesn't switch off during the period of reversal, rather it is replaced by a several competing poles until a unifying pole establishes itself and stabilises. So it's quite possible that there are no significant effects on life during this period, certainly the fossil record indicates no mass extinction associated with polar reversals, however, how our electronically dependant society will fair might be a different matter.
"Common sense is not so common" - Voltaire
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#9
ML Tonk, that is interesting information. It sounds plausible that the pole switch would take some time (our scale) and not be "instantaneous", i.e. of very short duration (months). Huge masses of iron are involved which have considerable angular momentum.
Jefferson: I place economy among the first and important virtues, and public debt as the greatest of dangers. To preserve our independence, we must not let our rulers load us with perpetual debt. We must make our choice between economy and liberty, or profusion and servitude. If we can prevent the government from wasting the labors of the people under the pretense of caring for them, they will be happy.
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