What is the phenomenon of the reversal of the earth s magnetic poles

The south magnetic pole is near the geographic north pole, and the north magnetic pole is near the geographic south pole. As for why, I don't know.

I believe that many friends know that there is a magnetic field on the earth, this magnetic field is called the geomagnetic pole by people, the geomagnetic pole is a magical thing, its magnetic field direction is constant, the compass is based on the principle that the earth's magnetic field is unchanged, but so far, there have been many times that the geomagnetic pole has reversed, what causes the geomagnetic pole to reverse?

The reason why the compass is called a compass is because in addition to the north and south poles, no matter where it is located, the two ends always point to the north and south respectively. However, the direction of the Earth's magnetic field is not constant, its north and south magnetic poles have been reversed, and the compass has become a north arrow, which is the "magnetic pole reversal".

In the billions of years of Earth's history, magnetic pole reversal events have occurred many times. In the last 4.5 million years alone, there have been 4 magnetic fields with different polarities'Period. On two occasions, as it is now, it was a "positive period", in which the geomagnetic north pole was near the geographic south pole and the geomagnetic south pole was near the geographic north pole.

There were also two "reversal periods" that were the opposite of what we are doing now. During each magnetic period, there is sometimes a brief reversal of the poles.

Why does the pole change occur? Is there any pattern to the repeated changes in the Earth's magnetic field? Scientists have also not come to a unified opinion on this.

Most scientists believe that when the liquid iron flow in the Earth's interior circulates around the center of the Earth's core, if there is a sudden change in the direction of the flow and the direction of the flow is reversed, the magnetic pole will be reversed.

The problem of geomagnetic inversion has attracted many geologists and geophysicists, and there are currently two mainstream views. One theory is that this pole reversal is a fortuitous event and may have been caused by convection. If the magnetism in one part of the Earth's interior is suddenly stronger than somewhere else, it will squeeze the magnetic force out of the surface, and the magnetic force that squeezes to the surface forms a small magnetic field that reacts on the original magnetic spillover point, in which case the magnetic pole reversal occurs.

However, some people believe that the reversal of the earth's magnetic field is not a random event, but has certain laws to follow and can be predicted. It's just that because the changes in the center of the earth are too complex, people have not yet been able to summarize the laws of similar fluid motion.

The reversal definitely has an impact on Earth, but it hasn't been recorded yet, so it's all speculation. However, guessing and guessing, it is still necessary to guess reasonably and reliably, and I hope that readers and friends will keep their eyes open, judge carefully, and don't seem to be accurate and open-mouthed. The reason for the reversal of the Earth's magnetic poles is the Earth's interior.

In the previous question, I pointed out that the magnetism of the Earth does not come from the iron core, but from the orderly movement of the microscopic matter inside the Earth.

<> that is, the reversal of the Earth's magnetic poles is caused by the quantitative to qualitative change of the microscopic material in the Earth's interior. According to the fact that the Earth is a celestial body of heavy elemental matter, it is indicated that the Earth belongs to the aging of celestial bodies. It also shows that the changes in the microscopic matter in the Earth's interior are decay and degradation.

Although the reversal of the Earth's magnetic poles will not have a direct impact on the Earth's surface, due to the large reduction of microscopic matter in the Earth's interior, it will lead to the arrival of disasters such as ultraviolet rays that have not yet been mastered by the magnetic protection of the Earth's outer space.

Therefore, the reversal of the Earth's magnetic poles is not a good thing, but the aging of the Earth and the reversal of the Earth's magnetic poles are irreversible, so it is not sensational, but should be the focus of scientific research. When the earth rotates, the polarity of iron is adjusted to the same direction as the earth's axis, and it is swayed by the earth's motion, and always maintains a certain angle with the earth's axis. The magnetic poles change as the position of the earth's axis moves.

The melting of glaciers at the poles causes the position of the Earth's center of mass to shift, which in turn causes the position of the Earth's axis to shift, resulting in a change in the direction of the magnetic poles. Not all iron polarity changes at the same time. Some iron has a slow change in polarity.

As a result, some of the polarity of iron is confused or lost during the transfer, resulting in a weakening of the strength of the Earth's magnetic field. The magnetic pole transfer is not a north-south reversal, but a deflection that occurs with the shift of the Earth's axis.

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Analysis: The Earth's magnetic field comes from the deep part of the Earth's core. The center of the solid earth is surrounded by molten iron and nickel liquids.

The movement of the Earth's core in molten metal creates an electric current that forms the Earth's magnetic field. And this magnetic field shields cosmic rays, mainly solar storms, on the earth, protecting the continuation of life on earth.

Scientists have discovered that when volcanic magma solidifies, the iron in it is always aligned in the direction of the magnetic field. Experts call this phenomenon geodynamics, and the earth's magnetic field is governed by the geodynamics, and they developed a computer simulation system based on this theory and found that the liquid material around the earth's center is always in a state of instability, rotating at a very slow speed, usually about one degree a year. However, when subjected to some kind of interference, this speed will become faster and faster, causing the original magnetic field to deviate farther and farther away from the poles, and finally the phenomenon of the North and South poles being swapped.

The consequences of the reversal of the Earth's magnetic poles are quite serious and will affect the entire natural world. Experts point out that the greatest disaster is the intense solar radiation.

Usually, these cosmic rays are engulfed by the Earth's magnetic field in space. However, once the Earth's magnetic field disappears during the inversion of the Earth's poles, these solar particle storms will slam the Earth's atmosphere, having a fatal impact on the Earth's climate and the fate of mankind. If this day does come, some low-orbit artificial satellites will also be completely exposed to the blowing of the solar electromagnetic storm and will soon be completely destroyed.

These changes will pose great danger to spacecraft such as satellites, because the Earth's magnetic field protects against high-energy radiation from outer space, as if a spacecraft such as satellites were wearing a layer of radiation clothing. If the Earth's magnetic field changes, then the thousands of satellites and other spacecraft orbiting the Earth will lose the protection of the Earth's magnetic field, and they will be unprotected from high-energy radiation from outer space.

In addition, many organisms that rely on the Earth's magnetic field to navigate, such as swallows, antelopes, whales, pigeons, and magnetotactic bacteria, can be disoriented. Some scientists are even skeptical

Scientists have spent 400 years searching for answers, and then discovered that the Earth is actually a large generator. And, what would happen if the north and south poles of the geomagnetic field were to reverse?

A geomagnetic inversion destroys power grids, harms astronauts and satellites, widens the hole in the ozone layer of the atmosphere, and reflects aurora borealis to the equator, disorienting birds (mainly migratory birds), fish (mostly migratory fish) and other migratory animals. Fortunately, while some have made apocalyptic predictions and claimed to have found a link between past magnetic field reversals and species extinctions, experts say things are not so scary.