Xiao Yu gradually became one with the self in the illusion he saw, and his thoughts and feelings became one.

He looked into the distance on the deck on the highest floor, desperately trying to find any possible existence. Xiao Yu had searched through all the rooms there, looking for possible existence likes. Xiao Yu had climbed to the highest mast to see if there were any companions farther away.

If so, no matter who it is, Xiao Yu will give everything he has to exchange for them. Xiao Yu doesn't want to be like this... that is unforgettable sorrow, that is a brand, deeply imprinted in his heart! Xiao Yu tried all his best, but couldn't get rid of it...

The feeling of despair and loneliness could not fade for a long time. Xiao Yu wanted to cry loudly, but he couldn't. He didn't know that there was any non-human terror here. Xiao Yu didn't even have the courage to cry loudly. The feeling of loneliness followed like a shadow, which made Xiao Yu extremely sad.

"What's wrong with you?" Suddenly, a strange voice sounded in Xiao Yu's ears, causing Xiao Yu to suddenly raise his head.

"Who is it? Who are you? Come out quickly!" Xiao Yu looked around anxiously and shouted loudly.

"Who am I? Am I not yourself?" The voice sounded in Xiao Yu's ear with an empty echo, "Do you want to change reality?"

"I think, I want all those who have lost come back, those lost time come back, I want all those who have lost come back again!" Xiao Yu hissed.

"Very good, but to do all this, you need to pay a huge price, long-term waiting, patience and loneliness, travel through this difficult time, and then you can see the beauty of the future. Perhaps as you said, it is to return to the past again.

Are you willing to go on the road alone, for those you miss?"

"Will!" Xiao Yu lowered his head, raised his head again, and said firmly.

"Very good," said the voice, "Now you see fragments of time between reality and illusion. They may become real, or they may be just a dream, and the turning point in between is on you.

If you can make the right choice after waking up and take the right path, you don’t have to repeat the mistakes you are now, but if you accidentally make a mistake, you will fall into a life-and-death dilemma!”

"I will be careful!" Xiao Yu said.

"Be careful is not enough," the voice said, "When you wake up, you return to your reality, and you need to face the dark doomsday time and endless doomsday monsters. Your situation is dangerous and difficult. So, I think, I should help you and let you understand the essence of doomsday happening!"

"I know the essence of the doomsday space-time and space-time fluctuations caused by the changes in the Earth's magnetic field, and the chaos in the space-time channels caused by the chaos!" Xiao Yu said.

"No, what you know is only one-sided. After listening to me after I've said it carefully, it's entirely accidental that you can come here. You can't stay here for too long, so you must seize every moment and listen carefully to what I say."

"The reason for the disorder of time and space is certainly related to the Earth's magnetic field, but it is not limited to the Earth's magnetic field. You must know that the Earth seems to be in the universe and is affected by the entire universe. Therefore, if you want to understand the essence of the end of the world, the first thing you need to know is the composition of the Earth's magnetic field and the composition of the universe's starry sky.

You should know that the earth's magnetic field is dipole-shaped, similar to the shape of a magnetic field generated by placing a magnet rod in the center of the earth so that its north pole is generally facing the South pole, but it does not coincide with the geographical north and south poles, and there is a magnetic deflection angle. Of course, there is no magnet rod in the center of the earth, but it generates a magnetic field through the generator effect of current flowing in the conductive liquid core."

"I know this," said Xiao Yu, "the North magnetic pole is in the area of ​​the Queen Elizabeth Islands, not in the center of the North Pole!"...

"Yes, you're right, so the explosion of Doomsday time and space starts from the North Magnetic Pole. You still remember the terrifying white birds, they are the ferocious birds from the North Magnetic Pole."

When Xiao Yu heard this, he suddenly remembered the rumored white bird murder near the Queen Elizabeth Islands, and nodded immediately.

"Remember one of my words: the North magnetic pole is the key to the doomsday storm, and the ferocious bird is the first god of death in the doomsday. Therefore, you must not take it lightly when encountering a white bird!"

There is no need to say much about this sentence. Xiao Yu has a deep personal experience of the terror of the white bird. When he meets the white bird, he will naturally be cautious. The white bird's speed is like lightning and the attack is as fierce as a knife. It is the absolute death sickle. Reaping life is like a harvester harvesting wheat.

"The reason for the formation of the Earth's magnetic field is actually not as simple as you think.

Some scientists on Earth believe that the formation of the Earth's magnetic field is similar to the formation of the magnetic field of other planets. Earth or other planets carry charges for some reason or cause uneven charge distribution between the various circles. These charges move in a circular motion with the rotation of the planet. Since the charge of moving is a current, the current will inevitably produce a magnetic field. The magnetic field generated is the magnetic field of the planet, and the magnetic field of the Earth is also produced by similar reasons. This is very consistent with the existence and strength of the magnetic field of each planet... I just told you that the Earth's magnetic field is not isolated, it is affected by external disturbances."

"I know," Xiao Yu said, "before the doomsday, the spacecraft had detected the existence of solar wind. The solar wind is a high-temperature, high-speed, low-density particle flow ejected from the solar corona layer to interplanetary space. The main components are ionized hydrogen and electricity. Therefore, the solar wind is actually a plasma.

Because it is a plasma, it also has a magnetic field. The solar wind magnetic field exerts an effect on the earth's magnetic field, as if it wants to blow the earth's magnetic field away from the earth. It is also like a powerful country invading a country.

But despite this, the earth's magnetic field effectively prevents the solar wind from moving straight in. Under the resistance of the earth's magnetic field, the solar wind bypasses the earth's magnetic field and continues to move forward, thus forming a comet-shaped magnetic field area surrounded by the solar wind, which is the magnetosphere.

So unlike what ordinary people imagine, the solar magnetic field actually forms part of the earth's magnetic field, so the changes in the sun will also cause turmoil in the earth's magnetic field!"

"You're right," the voice continued, "The Earth's magnetic layer is located 600 to 1,000 kilometers high from the top of the atmosphere. The outer boundary of the magnetosphere is called the magnetosphere top, 50,000 to 70,000 kilometers from the ground. Under the compression of the solar wind, the Earth's magnetic line extends far to the space on the side facing the sun, forming a long tail called the magnetic tail.

Near the magnetic equator, there is a special interface. On both sides of the interface, the magnetic force line suddenly changes direction. This interface is called a neutral sheet. The magnetic field strength on the neutral sheet is minimal, with a thickness of about 1,000 kilometers. The neutral sheet turns the magnetic tail part into two parts: the magnetic line on the north faces the earth, and the magnetic line on the south leaves the earth.

Scientists on Earth have long discovered that in the range of about 10 earth radii on both sides of the neutral sheet, there are relatively dense plasmas, and this area is called plasma sheets.

When the solar activity is intense, the high-energy particles in the plasma will increase and quickly settle into the polar regions of the earth along the magnetic line, and thus various and colorful aurora appear.

Because the solar wind approaches the edge of the Earth's magnetic field at a high speed, a collision-free wavefront of the Earth's bow-shaped shock wave is formed. The transition area between the wavefront and the top of the magnetosphere is called a magnet sheath, with a thickness of 3 to 4 earth radii.

Of course, you have a good learning and good memory, so you must have learned this information long ago. But the magnetosphere is not only unique to the earth. Most other planets in the universe have their own magnetospheres, and even some neutron stars and active galaxy nuclei also have magnetosphere characteristics...

For example, in the solar system, the sun and other planets carry magnetic fields. The sun and Jupiter also have strong magnetic fields, among which the magnetic field strength of Jupiter is 20 to 40 times that of the Earth's magnetic field. The elements on the Sun and Jupiter are mainly lighter elements such as hydrogen and a small amount of helium and oxygen. Unlike the Earth, there is no large number of ferromagnetic elements inside it.

So, why is the magnetic field of the Sun and Jupiter stronger than that of the Earth? The temperature inside Jupiter is about 30,000°C, and the pressure is much higher than that inside the Earth, and the pressure inside the Sun is even higher. This makes the solar and Jupiter produce a wider electron shell. In addition, Jupiter's rotation speed is faster, and its rotation time lasts about 10 hours per week, so its magnetic field strength is naturally stronger than that of the Earth.

In fact, if the internal temperature of a celestial body is high enough, the magnetic field strength of the celestial body has nothing to do with whether it contains iron, cobalt, nickel and other ferromagnetic elements. Since the internal pressure of the sun and Jupiter is much higher than that of the earth, the magnetic field on the sun and Jupiter is much stronger than that of the earth. And the magnetic field of Mars and Mercury is weaker than that of the earth, which means that the internal pressure of Mars and Mercury is much lower than that of the earth.

Of course, this is just the theory and theory on the earth at present. In fact, other celestial bodies also have their own magnetic fields, and these millions of magnetospheric layers form a large magnetic field in the entire space-time. So, if you want to understand the essence of the end, sooner or later, you will also study the magnetic field faults and bridge conditions in various spaces."

Xiao Yu nodded, and was about to ask how to study the magnetic fields in other spaces, but he heard the voice and continued: "Now the magnetic field on the earth has begun to weaken and will disappear soon. So, you must be careful!"

Xiao Yu also knew this, so Xiao Yu couldn't help but say: "This is also determined by the characteristics of the earth's magnetic field.

The positive and negative charges carried by ordinary matter are equal, but the matter in the core of the earth is not like this. The material in the core of the earth is subjected to a high pressure and a high temperature, about 6,000°C, and there are a large number of ferromagnetic elements inside, and the matter becomes an ion with varying charges. In this way, the electrons in the atom overcome the gravity of the atomic nucleus and become free electrons.

Moreover, because matter in the core is subject to huge pressure, free electrons tend toward the lower pressure mantle, making the core positively charged while the near mantle is in a negatively charged state. This situation makes the earth like a huge "atom".

Because the core of the earth is positively large and the temperature and pressure are relatively high, the conductivity of the formation is extremely high, so that the current can flow in it like a coil without resistance, which makes the earth form a north-south magnetic pole with relatively stable magnetic field strength.

In addition, the distribution position of electrons is not fixed and will change due to the influence of many factors. In addition, the gravitational action of the sun and the moon, the rotation of the core is not synchronized with the earth's crust and mantle. This will produce a powerful alternating electromagnetic field, causing the north and south poles of the earth's magnetic field to move at a low speed, which will cause the north and south poles of the earth to flip over time. Before the magnetic field flips, the north and south poles will disappear. This makes the identification of direction a difficult problem.

All guide devices will no longer be accurate, and the methods of identifying east, west, south and north are also limited, but you must remember that using the sun, moon and stars to identify directions can still be used in the early stages of the doomsday! I have heard similar theories of the disappearance of the earth's magnetic poles, but this is the first time I have experienced it myself!"

The voice was unanimous, but continued to tell the story: "On the earth, according to your so-called universal recognition, the first person to propose the concept of geomagnetic field theory was Gilbert, an Englishman. In 1600, he proposed an argument that the earth itself is a huge magnet, and its two poles and geographical poles coincide. This theory establishes the relationship between the geomagnetic field and the earth, pointing out that the cause of the geomagnetic field should not be outside the earth, but inside the earth...,

In fact, this can be said to be correct or wrong. It depends on the position where the earth is placed. If the earth is a planet without any special and other ordinary planets, then the cause of the earth's magnetic field can be said to be within one's own.

But in fact, the earth and other alien spaces have this inextricable connection, so the magnetic field on the earth is actually inseparable from the energy fluctuations in other spaces.”

Hearing this, Xiao Yu couldn't help but want to insert it. Xiao Yu knew that scientists on Earth now have basically mastered the distribution and change laws of geomagnetic fields, but the academic community has not found a satisfactory answer to the origin of geomagnetic fields.

According to Xiao Yu's information, the hypothesis about the origin of geomagnetic fields can be summarized into two categories. The first type of hypothesis is based on existing physics theories; the second type of hypothesis takes a unique approach, believing that there are special laws different from existing known theories for a cosmic object like the earth.

The first type of hypothesis has the rotational charge hypothesis. It assumes that there are equal amounts of opposite-sex charges on the earth, one is distributed inside the earth and the other is distributed on the surface of the earth. The charge rotates with the earth, thus creating a magnetic field. This hypothesis can naturally explain the cause of the geomagnetic field through the relationship between electricity and magnetism. However, this hypothesis has a fatal disadvantage. First of all, it cannot explain how the charges inside and outside the earth are separated; secondly, the earth does not carry much charge, and the magnetic field generated by it is very weak. According to calculations, if you want to obtain a magnetic field intensity such as a geomagnetic field, the earth's charge reserves need to be expanded by 100 million times. The theoretical calculations and actual situations are very different.

The geomagnetic field hypothesis based on the ground core is also the first type of hypothesis. Frank proposed the generator effect theory in this type of hypothesis. He believed that the formation of current in the ground core should occur through induction when the metal matter of the ground core moves in the magnetic field. At the same time, the field in the form of the current itself is a continuous regeneration of the magnetic field, just like in a generator. The model established by Frank explains how to realize the regeneration process of the ground magnetic field and explains that the ground magnetic field has a certain value. However, when applying this model, it is difficult to explain how the circuit in the ground core is closed through a circular loop. In addition, this model does not take into account the reaction of the current on the vortex motion, and this reaction does not allow the vortex to be distributed in the planes parallel to the equatorial plane.

The first type of hypothesis include the drift current hypothesis, the thermal effect hypothesis and the Hall effect hypothesis, but none of these hypotheses can fully explain the singular characteristics of the geomagnetic field.

There is also a second type of hypothesis about the origin of geomagnetic fields, the most representative of which is the heavy object rotation hypothesis.

In 1947, Blacket proposed that any rotating body has a magnetic moment, which has nothing to do with whether there is a charge in the rotating body. This hypothesis believes that the magnetic fields of the earth and other celestial bodies are generated in rotation, that is, the astral body naturally generates magnetism, just like the rotation energy of charges produces magnetic fields. However, this hypothesis encountered difficulties in both experiments and astronomical observations. Under the existing experimental conditions, the magnetic effect generated by rotating objects has not been observed. The observations of celestial bodies show that the distribution of magnetic fields of each planet is very complex, and it is not yet possible to prove that there is an inevitable dependence between the rotation of the planet and the magnetic field.

Therefore, the academic community is still in the midst of exploration and controversy about the origin of geomagnetic fields, and there is no convincing theory that explains the causes of geomagnetic fields.

However, the voice was sure that the formation of the Earth's magnetic field was associated with other spaces, which made Xiao Yu couldn't help but ask. However, when thinking of the monsters in different spaces coming in succession, Xiao Yu said nothing...

The formation of a geomagnetic field has certain special characteristics. According to the rotation mass field hypothesis, the earth generates a magnetic field during its rotation. However, from the perspective of relative motion, people living on the earth should not feel the geomagnetic field, because people are still on the surface of the earth and rotate with the earth, so people on the earth cannot feel the magnetic field effect generated by the earth's rotation.

The commonly referred to as the magnetic field of the earth can only be regarded as the magnetic field on the surface of the earth, not the global magnetic field of the earth (also known as the space magnetic field). It is formed by the rotation of the earth's core. The internal structure of the earth can be divided into the crust, mantle and core. In experiments, American scientists found that the rotation speeds inside and outside the earth are different, and the rotation speed of the earth's core is greater than the rotation speed of the earth's crust. That is to say, although people on the surface of the earth cannot feel the rotation of the earth, they can feel the mass field effect generated by the rotation of the earth's core, which is that it produces the surface magnetic field of the earth. Scientists also found in their research that the rotation axis of the earth's core is not on the same straight line, so the two poles of the geomagnetic field formed by the rotation of the earth's core do not coincide with the geographical poles. This is the reason for the formation of the magnetic declination angle of the earth's magnetic field.

Xiao Yu has also heard of the inversion and disappearance of the Earth's magnetic field.

"It seems you know something, and you can say what you know!" said the voice.

Xiao Yu nodded, recalling the information he had remembered, and said as if he was an endorsement: "In his research on the geomagnetic field, scientists found that the geomagnetic field is changing. Not only is the intensity not constant, but the magnetic poles are also changing. The magnetic pole inversion occurs every once in a while.

As early as the early 20th century, French scientist Bullone discovered that the geomagnetic field had reversed 700,000 years ago. In 1928, Japanese scientist Kiban Matsuyama also obtained the same research results. After World War II, with the rapid development of paleomagnetic research, people obtained more and more evidence of geomagnetic field inversion. For example, when magma cooled and solidified into rocks, it would be magnetized by the geomagnetic field and retained magnetism like magnets, its magnetic field direction and geomagnetic field direction during diagenesis.

In line. Scientists found in their research that the magnetic field direction of some rocks is the same as that of modern geomagnetic fields, while the magnetic field direction of some rocks is exactly the opposite of the modern geomagnetic field. Through the magnetic measurement of onshore rocks and seabed sediments, and the analysis of magnetic anomalies on the ocean floor, scientists finally found that in the past 76 million years, the earth has undergone 171 magnetic pole reversals. The most recent one occurred 700,000 years ago, as pointed out by Bulu.

According to the theory of origin of geomagnetic field, the reason why the magnetic poles of the geomagnetic field are reversed is caused by the change in the rotation angular velocity of the core. The rotation speeds of the earth's crust and the core are not synchronized. At this stage, the rotation speed of the core is greater than the rotation speed of the earth's crust. However, this was not the case 4 billion years ago. At that time, the surface of the earth was in a melting state, and the moon had just been captured. The rotation speed of the earth from the inside to the outside was consistent, and there was no magnetic field on the surface of the earth.

However, as the earth transmits angular momentum to the moon, the earth's rotation angular velocity becomes smaller and smaller. At the same time, the earth gradually forms a three-layer structure of the earth's crust, mantle and core. The change in the earth's rotation angular momentum is first reflected in the earth's crust, and the crust rotation speed is smaller than the core rotation speed. At this time, the existence of a magnetic field can be felt for the first time on the surface of the earth, and the core forms a geomagnetic field at a rotation speed greater than the crust.

The south pole of the magnetic field is near the geographical south pole, and the north pole of the magnetic field is near the geographical north pole. The angular velocity of the earth's crust and the core are not synchronized. This situation cannot be maintained for a long time. The core must transmit angular momentum to the crust through mantle fluorospheric matter. As a result, the angular velocity of the earth's core gradually decreases, and the angular velocity of the earth's crust gradually increases. When the angular velocity of the earth's crust and the core increases and decreases in turn, the magnetic field will disappear on the surface of the earth...

And here it is the reason why the Earth's magnetic field disappears!”

After Xiao Yu finished this passage in one breath, he suddenly found that the surroundings were quiet, and the only voice was there.

"What's wrong?" Xiao Yu asked.

"It's nothing, your memory is really good!" The voice appeared again and said lightly, but Xiao Yu heard some subtle emotional changes from it.

This change is very familiar, but I can't tell where it is familiar. At this moment, I heard the voice saying, "Tell me, what do you think is the reason for the earth's magnetic field inverting!"

Xiao Yu nodded and said, "After the magnetic field disappears on the earth, the angular momentum transmission between the earth's core and the earth's crust will not end here. Under the action of inertia, the rotation angular velocity of the earth's crust continues to increase, and the rotation angular velocity of the earth's core continues to decrease, so the rotation angular velocity of the earth's crust is greater than the rotation angular velocity of the earth's core. At this time, the rotation mass field effect from the earth's core inversely the earth's rotation direction will be felt on the surface of the earth.

At that time, the newly formed geomagnetic field will be near the geographical North Pole, and the North Pole will be near the geographical South Pole. From a long period of time, the rotation speed of the entire earth is in a decelerating state, but the relative velocity between the earth's crust and the core will change periodically, which is why the earth's magnetic field will invert once every once in a while.

Generally speaking, there are obvious signs before the geomagnetic field reversal, and then the earth's magnetic field strength weakens until it reaches zero. Then, it takes about 10,000 years to slowly recover, but the direction of the magnetic field is completely opposite. At present, the earth's magnetic field strength has gradually weakened. In the past 4,000 years, the magnetic field strength in North America has weakened by 50%, which shows that the velocity difference between the earth's core and the crust is shrinking."

"Yes, what about this time? Is there any sign of a weakening of the Earth's magnetic field this time?" the voice asked.

"Yes, I just said that in the past 4,000 years, has the Earth's magnetic field been weakening?" Xiao Yu said.

The voice smiled slightly, without giving a comment about right or wrong, but said lightly: "So what is the magnetic field on the earth like compared to other space and time?"

Xiao Yu thought for a while and said: "No matter how the direction of the geomagnetic field measured on the surface of the earth changes, the direction of the geomagnetic field in space is always unchanged. Because the geomagnetic field measured in space is the rotation mass field effect generated by the rotation of the entire earth and will not change due to the change of the relative velocity between the earth's crust and the core. According to the left-hand rule, the south direction of the geomagnetic field measured in space is always above the geographical South Pole.

The magnetic field strength of the space magnetic field formed by the earth in space is proportional to the mass of the entire earth, proportional to the angular velocity of the earth (approximate value), and inversely proportional to the distance between the observation point and the center of the earth. Therefore, in the cosmic space near the earth, the intensity of the space magnetic field formed by the earth is greater than the intensity of the magnetic field on the surface. The biggest feature of the space magnetic field is that the magnetic poles are constant and the magnetic pole inversion will not occur like the magnetic field on the earth's surface.

According to the knowledge on the earth, when permanent magnets are not resistant to high temperatures, people begin to realize that the earth's magnetic field should be an electromagnetic field. The electromagnetic field follows the principle of Maxwell's equation, so there must be current flowing in the earth. Based on the form of the earth's magnetic field we measured, the maximum point of the earth's electric field current should be on the plane of the equatorial section.

Contemporary geomagnetic field theory believes that this current flows on the equator of the core (the principle of the earth core generator), and its power comes from the self-slide between the earth's layers. In fact, this is some very unrealistic idea. The poor rotation of the earth is not an acceleration itself, and it will not produce energy. The equatorial ring current forms a geomagnetic field. The current needs more powerful power on the core than on the earth's crust. It is an energy level different in series. So fundamentally speaking, there will be no such large amount of energy inside the earth."...,

"Haha, there is no such great energy on the earth, but haven't I told you just now that the energy on the earth does not come from the earth itself, but from other different spaces and the entire universe. Otherwise, why would the earth become the center of the entire space-time storm?

Do you know how much squeeze and tear the earth needs to withstand at the center of the space-time storm? If there were no other different spaces to supply the earth's energy at the same time, how could the earth survive the doomsday storm? It had long since turned into a pile of waste paper in the tear of space."

"Uh," Xiao Yu was stunned for a moment, without saying a word. He had never thought about this before. As the center of space distortion, the earth bears the pressure and distortion force of each space, but it is unscathed. It is indeed a bit incredible.

Not only does the earth have no signs of destruction, but the solar system adjacent to the earth has not suffered any major damage. From this point of view, everything this sound says may be true. There is indeed some strange source of power on the earth.

It is these sources of power that protect the earth and save the earth from the end of the world that should have been destroyed. And how similar this is to the humans on earth.

Humans on Earth are facing a huge change in the environment on Earth and are trapped in a life-and-death crisis. However, due to the energy surged from other alien spaces, a large number of gods and fallen people have been born among humans, thus providing humans with a path to become stronger, and they can constantly become stronger and adapt to this doomsday environment.

Originally, humans will die on the end of the earth. Those terrible Zergs and white birds and monsters are existences that humans cannot resist. However, the energy of the alien space gives humans a glimmer of life, allowing humans to survive, and at least they can struggle to survive in the doomsday.

The same is true for the earth, except that the danger of the earth comes from the distorted pressure and pulling force of space. The complex and complex different spaces are connected to the earth at the same time, leaving the earth at the center of the entire pressure. Such conditions are enough to destroy the earth countless times.
Chapter completed!