Chapter 1007: Underground, Deeper

Normally, the core of a planet is hot.

Not only is most of the energy in the early stages of the planet's birth being stored in the Earth's core, but also in the early stages of solidification of the planet, the hot molten material produced inside the planet will also be transferred to the Earth's core under the action of gravity and penetration effects. If it is mainly rock, If the planet is a planet, then the radioactive material accumulated near the core can usually reach millions of times the concentration on the surface. In this environment, the highly radioactive core is almost equivalent to a thermal power plant that continues to perform slow nuclear reactions, and the heat cannot be released. , will eventually heat the earth's core into a hot liquid metal ball: under the astonishing pressure and temperature, even diamond will become as soft as butter, and no matter how high the temperature is, the material here can only liquefy but not vaporize .

The above is the normal version of the Earth's core.

Some parts of the Earth's core are cool - very cold compared to the hot core. Even planets with long lifespans are constantly evolving towards the end. The activity of the earth's core will gradually decrease, and radioactive materials will slowly decay to the point where they cannot release heat. The entire planet's transition from youth to middle age is from the surface to the earth. The process of core cooling layer by layer, and when far away from the star, this cooling rate will be faster. When a planet enters old age, the core will become close to the solidification point of iron metal, and after peeling off its crust and mantle , you will see a dark red alloy giant ball, showing the vicissitudes of time, loneliness and silence in the desolate space. The slowly dimming flame in the center of the earth is the twilight candlelight of an old planet.

The above is the literary version of the core of the earth.

There are also some cores that take non-mainstream routes, and highly skilled demolition teams throw the entire core of their planet into an unknown place, leaving behind a warm burning rock shell. The rock shell provides heat and light, and then they plant some flowers and plants in the large cavity in the center of the planet, and then insert a theme park sign - let us temporarily name this kind of earth core the second-largest version.

"What the hell is this?" Looking at the bright underground world and the green land in front of me, I was stunned.

"What the hell is this?" Lilina was also stunned as she looked at the giant vines that were moving slightly on the green land and were countless kilometers wide.

"A smaller planet? Stuffed inside the core of the earth?" The corner of my sister's mouth twitched a little, "And the vegetation is dense. They grow too huge."

"Maybe it's because of the direction of gravity?" I let 700 billion slowly descend. "The gravity of the green core below is one thousandth that of the surface, and the surrounding mantle almost cancels out the gravitational pull in every direction."

"Maybe." Sandora said noncommittally. She probably felt that the flowers and plants growing in the center of the earth were not an issue worthy of attention.

It took us a long time to pass through the mantle layer, partly because the 700 billion slowed down the cruising speed, and partly because the alloy tunnel was not straight: it led to the center of the earth along a gentle parabola, halfway It seems that some giant facilities buried deep in the earth's mantle have been bypassed. The radar shows that those bypassed giant facilities have extremely high energy reactions. Maybe they are Green Star's psionic furnaces or the like. When I passed through the last spherical shell barrier, I thought I was going to enter a sea of ​​fire. Under normal circumstances, the center of the earth should be a hot, purgatory with molten iron flowing across it. But in fact, the sea of ​​fire did appear, but it was behind us: the earth The heart was completely hollowed out, and the core of the earth was gone. Only the inner spherical shell of the earth's core (or the lowest layer of the mantle) spread flaming rivers of magma. These rivers of magma rushed on the partially cooled mantle, as if hanging upside down. The earth and the overhanging rivers and lakes. The mantle appears dark red in the field of view, indicating that its temperature is at least below the melting point of iron. The thick liquid rock and metal flow that still maintains high temperature flows slowly on this upside-down land, like a dazzling fire dragon.

But where the core of the Earth should have been, there was another scene with extremely strong contrast: a sphere with a radius of 1,500 kilometers was suspended there, as if it were another smaller planet, with no currents on its surface. There are no streams of magma and iron, nor blazing seas of fire. Quite the opposite. Protected by a dim barrier, this "inner star" with a radius of 1,500 kilometers is densely covered with lush green vegetation.

It is even so dense that no ground material can be seen at all.

"Arjun, to be honest, I have never seen such a scene in tens of millions of years," even Sandora opened her eyes wide. He said slowly with a surprised tone, "It's...beautiful and spectacular. It's not technically incomprehensible, but the creativity of this project is simply...unbelievable."

In the end, she used disbelief to describe the magical star in front of her.

Seven hundred billion slowly hovers at the gravitational equilibrium point, 537 kilometers from the bottom of the earth's mantle and 200 kilometers from the small green planet below. Here, gravity is zero. This is a very wonderful phenomenon. For a For a normal planet, its universal gravitation points to the center of the earth, regardless of any holes near the center of the earth. However, instruments show that after passing through the dividing line at the bottom of the mantle, we have entered a modified gravity environment, and part of the gravity comes from the front. The small green planet points to the center of the earth, while the other part of the gravity is in the mantle layers in all directions. They are actually facing the opposite direction: pointing to the surface. This is definitely not a natural formation. Perhaps this is some kind of safety device of the Green Star. The original builders made the gravity of the earth's center face in two directions, forming a wide enough safety zone in the middle to prevent the magma flowing on the mantle and The molten iron falls like a waterfall on the ecological planet below, and it also acts like an invisible cushion, preventing the inner planet from being destroyed.

Tavel took a deep breath, released a set of twenty-two probes, and then quietly waited for information feedback. It can be seen that even a super scientist like her is a little excited at this time. In Sandora's words, perhaps the spectacle in front of her can be explained technically, but this creativity and the purpose of this magnificent project , but it is incredible.

"There are two pieces of earth, but no sky." Due to the loss of gravity, Qianqian simply started to float back and forth in the back half of the unusually wide car. She held the window and looked outside, spinning around. "One is burning with fire, and the other is growing forest. I have seen this in my dreams when I was a child. The two floors are upside down..."

I thought about it and finally understood: She had confused the Alice in Wonderland and Journey to the West scenes of the Flame Mountain. Of course, it was also possible that she had mixed up the Demon Altar Fighter and the Third New Tokyo...

Now there is no concept of up and down here. The bottom layer of the mantle is equivalent to the sky for the little green planet. But looking from another direction, it is a blazing land. However, out of habit, we still regard the "inner star" in front, with a radius smaller than the moon, as the lower one. Tavel completed a preliminary assessment of the environment here: "The maximum temperature of the mantle layer above is only about 3,000 degrees Celsius, and the minimum temperature is 700 degrees Celsius, which is very uneven. There may be an energy system still regulating the core temperature environment of the Green Star. The green core is a medium-density celestial body, composed of soil and rock. The vegetation on the surface is confusing: so many plants, but showing a life reaction on the device, is too abnormal."

"Then the entire small planet is a living organism?" Shandora showed an interested expression, "Let's go down and take a look. Tavel, let your assistant stay at the gravitational balance point for the time being and continue to observe this geocentric celestial body , I always feel that this has something to do with the dormant cabins in the mantle."

A team of scientists opened a temporary working platform at the gravitational balance point, which is a triangular floating island shrouded in a psionic shield. We rode the 700 billion and slowly descended, operating very carefully. Because Tavel is afraid that we will destroy the little green planet in front of us.

"The center of the earth is filled with hot air of thousands of degrees." Tavel pointed to the inner star. There was a dim barrier covering it more than ten kilometers high outside. "This barrier protects the ecosystem inside. You It’s best to turn off the aircraft’s psionic shield first. The barrier outside the target seems to have little energy left. The psionic energy may punch a big hole in it. This is the theory.”

I could have guessed what she said later even if she didn't say it: the fragile plants on that star would be wiped out in a fire. I'm afraid it won't even take a few minutes.

Seven hundred billion to close the shield, relying only on the armor layer and the airtight force field to resist the thousands of degrees of high temperature outside: But this is nothing to the transportation vehicles made by the empire. Everyone couldn't help but feel nervous when passing through the fragile shield. I was prepared to immediately activate my abilities to plug the loopholes if the situation got out of control, but fortunately everything went smoothly. The dim shield above the small green planet withstood the test, it only flickered partially.

We landed slowly in a dense virgin jungle. Seven Hundred Billion's scorching shell scorched some plants, but overall the landing was quite environmentally friendly.

"It is very similar to the environment of New Eden IV. The temperature is slightly higher and the air contains oxygen, but it is not suitable for human habitation: the oxygen content is too low and the gravity is not enough."

Sandora jumped on the spot as she spoke, "There is artificial gravity under the shield, but the intensity of gravity is only a little greater than the surface of the moon. If this is not intentional, the artificial gravity system here needs a major overhaul. "

"I hope it's not the latter," Tavel muttered, taking out two sophisticated hexagonal devices. I felt more and more like she was like a Doraemon, always taking out a bunch of high-tech stuff from her pocket, " After replacing two life detectors, the result is still the same. There is only one living thing here, which is the planet under our feet: if it can be regarded as a planet."

Of course it’s a planet. Anyway, I don’t believe that under normal circumstances the earth’s core can shrink and leave the mantle for nearly a thousand kilometers, then cool down and grow flowers and plants on it. Finally, it has its own rotation period and angle: this is the 700 billion scan just now Conclusion afterwards. I feel a little lucky now. The system composed of the Green Star and its "star within the star" seems to have a self-protection device to ensure that it is still mutually stable after being dragged by the Imperial Army and transferred to a world. Otherwise, this little one The green star must have crashed into the mantle. However, this system is not unexpected. After all, Green Star was originally capable of traveling across worlds. Now it is just a super-world engine that has been scrapped. The safety lock prepared for this engine does not necessarily have to be scrapped as well, right?

Weak gravity, unbelievably lush primitive jungles, and huge plants. Walking in such a place, we can jump up to ten meters in the air with just a jump. It feels like walking in Alice's dream world. After walking past a flower that was at least three stories high, I felt I suddenly understood what Dingdang's normal perspective was like.

"I feel like there's a sense of incongruity here," Sandora didn't like the feeling of walking through the forest and trees in microgravity. So he simply floated in the air and whispered, "Some of these things are unreal. These huge vines on the ground are fine, but... wait."

Sandora suddenly stopped, and then a golden halo slowly circulated in her hair, and she felt the surrounding environment. Nodding: "So that's it, I was negligent."

As she spoke, she casually pressed down on a gigantic shrub. With just a slight impact of her mental power, the sturdy-looking plant turned into scattered green light spots in the blink of an eye.

"It's mass projection," Tavel stretched out his hand to catch the light spots and watched them slowly reorganize into a colorful bird - half the size of Pandora. The current Tavel is a mass projection. I have never used this kind of thing. It is difficult to imagine what kind of feeling this form of body will have. However, I have heard about the characteristics of this technology. It can create a body that is the same as the body. The exact same mirror image, the mirror image has entity, can affect the material world like an ordinary body, and can even simulate the physical strength of the original body, but the mass projection cannot carry the special abilities of the original body, such as the large number of scanning components in the body of the Xiling apostle: mass The projection is just a convenient terminal for working. There is no form but no spirit. Therefore, Tavel needed to use various external equipment (scanners, probes, etc.) when working with mass projection, and the functions of these equipment were already possessed by her body. Therefore, she was not able to discover it at the first time. The abnormality of the environment here was due to Sandora discovering these secrets. "It is much less stable than the projections produced by the Empire's technology. But the visual effects are more realistic. If you only use conventional senses, it is impossible to distinguish the authenticity. However, any kind of energy radar can detect the unreality of these projections: their The energy response was monotonous and there was no sign of life."

"In other words, only the vines under our feet are real. Everything else is an illusion."

My sister nodded and said, she didn't like the feeling of being tripped by vines while being light here. So he and Sandora floated in the air side by side, moving forward in a suspended manner.

Qian Qian didn't know what she thought of again, so she climbed to the top of a plant and shouted loudly: "Is there anyone? Is there anyone who can answer me?"

I quickly went up and pulled down this girl who was having seizures at any time: "What are you yelling about?"

"Don't say anything, she's not yelling blindly," Sandora floated over with a smile, "I feel something just came out of the vines in the distance, and it's approaching here."

We stopped in surprise and waited patiently for a while. After a while, a huge clump of leaves not far away suddenly rustled, and then in everyone's surprised eyes, a man with pointed ears and a head on his back appeared. A little girl carrying a hunting bow emerged from behind the leaves, her bright light green eyes looking here in shock.

The little girl was wearing light, close-fitting clothing that was suitable for walking in the forest. The white shirt was decorated with green patterns on the edges. It was not clear what material the clothes were made of. It was a bit close to leather, but it looked extremely soft. She wore a pair of clothes tied with leather ropes under her feet. The little short boots were still stained with mud. The girl looked to be about twelve or thirteen years old. She was slender but did not look thin. She had short green hair and a pair of pointed ears protruding from the short hair. Come on. She has small and delicate facial features, fair skin, and has similar facial features to the girl in the dormant cabin we found "above" before. Finally, my eyes fell on the other party's hunting bow - it was obviously a toy, first of all Its size is completely designed according to the figure of a twelve-year-old girl. It is probably not very powerful when it is full. Secondly, there is a small straw doll tied under it. This thing does not look like something that should be on a weapon. Of course, the most important feature is the quiver that is carried cross-body with the hunting bow. The arrows in the quiver are placed in a mess, and some of the arrows are pointing upward. I can swear on my integrity that this kind of bow with leather plugs as arrows will definitely only provide For use by minors under the age of fifteen...

"Quality projection."

Shandora said in the spiritual link, and I understood: the little girl in front of me turned out not to be real.

"Ah! Intruder!"

The little girl looked at each other for five or six seconds before she suddenly reacted. Then she clumsily took off the small hunting bow on her back, spent five seconds bending the bow to set the arrow, and then hurriedly turned the arrow around. We then took aim for a long time, and after drawing the bow for a long time, we cried and said: "Don't move, I will take aim in a while, you just wait a while..."

Everyone: "..."

"Dingdang doesn't have to worry about his intelligence." Lin Xue turned her head and whispered.

Then an arrow with a leather stopper finally shot out of the air and hit Lin Xue's forehead danglingly. It stuck there with a "pia ji" sound. The eldest lady's face stiffened, and I turned my head and said: "I can't tell, this silly little girl is quite accurate, she can hit her head with one arrow."

"Ah, I'm sorry, I wanted to shoot that man's knee, but I missed..." The little girl's panicked voice came from the front.

I:"……"

The circle of people burst into pieces!

Lin Xue pulled out the harmless toy arrow on his forehead and threw it back to the little girl, then stepped forward. The little girl followed step by step back with a nervous look on her face: "Don't come here! Intruder! Here. This is a forbidden area! No one can come in! If you go out, the patriarch will be angry! Come out quickly... Wow!"

The little girl stepped on the air and fell down from the vines, sitting on the ground and crying.

Shandora frowned, her tone full of helplessness: "Arjun, if someone uses mass projection just to make such a joke on us, then this is really bad."

"There is no hostility, and there is no danger." Lin Xue shook her head and said, and then she and her sister ran forward to help the little girl up who had fallen in pain. I felt a bit disobedient, so after thinking for a while, I said to Sandora: "Oh, by the way, will the mass projection hurt if it falls?"

"Well, in theory, mass projection will ignore too strong body sensations," Sandora shrugged, "but the mass projection here uses a different technology from the empire, so it's uncertain. Maybe they will The real feeling is integrated into the projection, although I think this is a stupid idea."

After a period of confusion, onee-sama still managed to calm down the messy little girl. It might have been the effect of some naughty child controlling the aura again. The little girl was brought to us, with tears still in her eyes, and she glanced at us timidly. : "You don't eat people, do you?"

I...I'm going! What on earth did we pick up and come back, and why are there such strange creatures inside! (To be continued)