|
I have been
thinking on this subject since 1972.
Can the poles
flip ????
................try in our life time.
My own theory.............. What scientists call a
ice age is just the ice cap breaking down and re-forming
elsewhere.
What triggers
this???? I am not sure........I am still thinking about this. When I come up
with a theory I will post it.
Immanuel
Velikovsky had some interesting theories on this subject as well as other
people. He said it was possible to have "mini reversals". He was sure these had
indeed happened in historic time and the man and animal life has been deeply
affected by them. He considered the fact that many of the life forms destroyed
in catastrophies were more physically adapted to survive than the creatures that
replaced them. In other words, there was nothing wrong with the animals, they
were just SUDDENLY WIPE OUT. Take the mastedons for instance. Scientists found
undigested plants in their stomachs and between their teeth. Plants that now
grow nowhere near where the animals died (like currently hundreds of miles
away). They died and were flash frozen in the blink of an eye (as they did not
have time to putrify or decay). It is said that sled dogs ate the meat with no
problems.
Take fossils for instance. There are no new fossild being made. The majority of
plants and animals died and rot and are gone in days. Fossils formed under great
heat and stress causing the plants and/or animals to die and be covered up so
quickly and under such heat that they just got sealed and fossilized. Another
subject Dr. Velikovsky tackled was the idea of where petroleum came from. Or
coal either for that matter. Coal and oil where created under great stress and
heat. What caused the great fift valley in Africa for instance......... where
the earth looks like a large tennis ball that some giant twisted until the
surface cracked and tore. Look at a geological (surface feature map). The Andes
Mountains and the Himalayas have been thrust up higher in historic times. Dr.
Velikovsky had the personal opinion the the time frame of history is all wrong.
That many old religious documents including the Old Testament are recordings of
such events. Look at the east coast of the United States around the Carolinas
especially, there are a series of "blue holes" out in the ocean and depressions
all along the U.S. east coast that look like a train of meteorites had rained in
a path left to right.
Has the sun always
risen in the east and set in the west???? Not according to many ancient
documents and legends. In one of the pyramids is a mural of the sky the way it
would look if if the sun rose in the west and set in the east. It was considered
very sacred. Ancient temples were always oriented to the sun rising on the
solstice. That is the main reason temples were abandoned and rebuilt. The old
testament temple was even rebuilt for this reason. The day has not always been
24 hours long. The year has not always been 365 days long. Historically this is
a "recent" occurance. What we read in the Old Testament is a historical record
of earth changes (the exodus for instance). Why does the Old testament insist on
stating "in the east at the sun's rising" if this were not something different
or out of the ordinary????
Yes...........The earth would survive a pole shift. The planet would survive and
quite possibly the creatures on it.
###############################################
----- Original Message -----
Sent: Monday, April 29, 2002 7:54
PM
Subject: [CTRL] Could the Poles
Flip?
http://www.earthfiles.com/earth339.htm
Earth's
Magnetic Anomalies -
Could the Poles Flip?
by Linda Moulton
Howe
April 27, 2002 Cambridge, Massachusetts - Deep beneath
our feet as we walk around in fact, 4,000 miles down is the center
of the earth where an iron core is so hot it is liquid and boils around like
cooking porridge. That moving, melted iron also produces the magnetic fields
that surround the earth and upon which much of earth's surface life,
satellites and space technology depend upon for orientation, and for
protection. If magnetic fields did not trap highly energetic particles racing
from the sun, all kinds of damage could be done to living organisms and space
technologies. For nearly a million years, magnetic field lines have been
coming out of the south pole and entering the north pole of the earth. That is
called the magnetic dipole.
Now a science team from Paris, France led
by Gauthier Hulot at the Institute of Earth Sciences in Paris - working with
other scientists such as Harvard University's magnetic field expert, Dr.
Jeremy Bloxham - have compared satellite measurements of the earth's magnetic
field strengths 25 years ago and today. Their discovery was published in the
April 2002 science journal Nature and it boils down to this: there are
strange and not very well understood variations now in the earth's magnetic
field. In fact, down in South Africa there is a large region that already has
a magnetic field pointing in the opposite direction from the rest of
the earth's field and is getting stronger all the time, according to new
satellite data.
Further, the north and south pole magnetic fields have
weakened in strength by about 10% of what they were. If the South African
region continues to get stronger and the poles keep weakening, scientists
think that within the next millennia, the pole magnetic fields could disappear
altogether, or flip so the magnetic field lines would leave the north pole and
enter the south pole. Meanwhile, could magnetic field anomalies and changes in
strengths and geographical locations persist during a transition period to an
unknown outcome?
Based on ancient rock studies, geophysicists can say
that such a situation happens three or four times every million years. There
can even be a period when there are many magnetic poles all over the planet,
not just at the poles. But no one knows for certain what the implications are
for earth life and technology because it hasn't happened since 780,000 years
ago.
Recently, I talked with Dr. Bloxham's graduate assistant, Mathieu
Dumberry from Canada, who specializes in the dynamics of the earth's iron
core. I asked him if the last time a pole reversal occurred was nearly a
million years ago, wouldn't that mean current surface life, including humans
and geophysicists, have no idea what actually happens if the poles reverse?
Interviews Mathieu Dumberry, Graduate Assistant to Prof. Jeremy
Bloxham, Department of Earth and Planetary Sciences, Harvard University,
Cambridge, Massachusetts: "That's correct. The consequences for human
life, in terms of what the actual exact sort of strength decrease in the
overall magnetic field is and in terms of what the consequences are for the
solar particles that are trapped in the magnetic field of the earth is, we
don't really have a good idea on that.
The magnetosphere plays such
a strange and mysterious, but important role between the ionosphere, outer
space and here on the earth. There are aurora borealis and all kinds of
magnetic field effects. If the North and South poles suddenly changed and the
magnetic fields were coming out of the North Pole and entering the South Pole,
wouldn't you think there might be some dramatic effects on earth
life?
I think the most dramatic effects might occur during the
reversal that is when the strength of the dipole field is going to be
the weakest. Because if the dipole is oriented one way or another in terms
I'm thinking in terms of the solar particles that are trapped in the
magnetic field therefore, don't reach the surface of the earth. These
sort of high energy particles could be damaging to life on the earth. If these
particles are trapped by the fields, they don't reach the
surface.
However, if the strength of the dipole field decreases, then
the ability of the magnetic field to stop these highly energetic particles is
weakened. And so this might have an affect on life.
But, as I said
earlier, 780,000 years ago when it happened, of course, we did not have human
society as we have now today, but the creatures that lived then in terms of
humans and other animals have survived.
Some have. But there have
been periods of unexplained extinctions in the history of the earth. If I
understand what you are saying, strong solar particles could be able to reach
the surface of the earth uninterrupted by strong magnetic fields as they are
deflected today. Such energetic particles reaching the surface of the earth
unimpeded could do damage on the surface during the collapse of the magnetic
dipole?
Yes. But again, I can speculate on the strength of the
magnetic pole much better than the affects on biology. But I would say that
since these big mass extinction events one we know occurred 65 million
years ago and another one more like 250 million years ago these mass
events if you postulate they were caused by the magnetic field reversal, then
you have to explain why in all reversals since I mean, there have been
reversals it seems there are reversals in the magnetic field two or four
times every million years. So now you have to ask why there haven't been any
mass extinctions when all the other reversals occurred?
That's a
comforting point, given the fact that all of you are already picking up
anomalies in the magnetic fields that suggest, as the French scientists have
said, 'We know that something is happening and we speculate that we are in an
unusual situation that might be related to a reversal.' Those are words of Dr.
Hulot.
Yes. It's quite possible that this is happening, that we are
in the middle of a reversal, at least at an attempt at reversal. But you know,
we might also find that in 500 years that this small reverse patch (in South
Africa) has shrunk and did not succeed in creating a reversal. We don't know,
because the time scale of these magnetic field changes seems to be on the
order of 300 to 500 years. It's difficult to say at this stage whether this is
a feature that will definitely lead to a reversal of the
dipole.
Have you talked with Dr. Bloxham (Harvard) about the entire
issue that you and geophysics could be sitting on data that as the time line
evolves in the future could become extremely relevant to earth life? So far
modern humans have never experienced a magnetic field reversal nor the
disappearance of the North and South poles.
Well, absolutely. It's
essentially the reason why we study the magnetic field. In itself it's
interesting from a mathematical point of view to understand the dynamics of
how the field is generated. But in terms of human society perspective, the
reason why we study the magnetic field is because it has an influence on our
life and on our future. Yes, that is essentially why we are studying the
magnetic field of the earth and its changes."
What about aerospace
and satellites and military applications? Wouldn't a change in magnetic fields
affect a tremendous amount of earth technology?
Yes. Fortunately
these changes are occurring slow enough. The typical life time of a satellite
is probably not going to be affected. But when we launch a new satellite, if
we are aware of a changed magnetic field then probably during the life time of
the satellite, (we would build the satellite) to operate
functionally.
However, it's sort of ironic that the satellite which was
used to produce the data and comparison between the last satellite
mission...
Data was compared from two different satellites, one with
data from 25 years ago and one that is current, to find these magnetic
anomalies, correct?
Yes, so the current satellite mission (ERSTED)
was originally built and the instruments were built to withstand a certain
strength of the magnetic field. However, now trying to establish how the
growth of the sort of reversed magnetic field patch in South Africa is
growing, it is actually growing faster than the people who built the satellite
originally thought. So, now the field might be too strong to really operate
well. So, it's ironic that one of the reasons to launch that satellite mission
was to monitor the growth of that field and now the field has grown to a point
where it might be hard to measure accurately now.
Do any of you,
whether it's based on speculation or hard data, have any idea when we reach a
threshold in these magnetic field changes in which the North and South Pole
fields are weakening and other areas on the planet such as South Africa are
getting stronger do you know at what threshold these changes in the
magnetic fields can affect earth life?
I would say currently no.
What we see from the data is what the magnetic fields appear at the surface of
the core. We have no idea what is going on inside the core. We do have an idea
because we are producing mathematical models that mimic the generation of the
magnetic field. So, by comparing what we see in the data to what we see in the
results of the models, then you can guess, 'If we see this pattern of magnetic
field at the surface, then this means what is happening inside.'
To
answer your question, essentially we don't really know for sure if we see a
certain pattern at the surface that it means something directly that we
can sort of look at the future 500 years or 1000 years and be certain, 'This
is what is coming up.'
|
