"There''s nothing here. The detector shows that the high platform should be just ordinary rocks." Su Peng searched carefully several times, but still didn''t find anything.


    "Was it taken away?" a team member wondered.


    "It''s possible. After all, it''s an alien civilization." Yao Feng touched his chin and thought about cableway.


    "High dimensional information is here," the science and technology simulator told Du Xingyu. "I am also a high-dimensional creation of human civilization parallel to time and space. I have a certain ability to perceive information from high dimensions."


    "So, it''s not that it''s gone, but that we, as three-dimensional creatures, can''t see it at all?" Du Xingyu moved in his heart.


    The universe is multidimensional. In short, zero latitude can be imagined as a point without length, width and height.


    One dimension is a line without height and width.


    Two dimensional is a plane without height.


    Three dimensional is a space with length, width and height. The fourth dimension is a world with more "time axis" in three dimensions... Up there are five dimensions, six dimensions, etc.


    Human beings are only three-dimensional creatures, because without a high-dimensional perspective, nature cannot see high-dimensional information and creation.


    For example, there is a two-dimensional creature, which is a paper man living in a cartoon. His perspective has only one line segment, and he can''t see the "us" in the three-dimensional world.


    Similarly, human beings, as three-dimensional creatures, can not see the high-dimensional creation clearly placed on the high platform. Because although it is there, it is in the high-dimensional space of that coordinate, not the three-dimensional space seen by human beings.


    "That''s almost what it means," said the technology simulator.


    "Do you have a way?" Du Xingyu has no way at all. A high-dimensional creation is there, but as three-dimensional creatures, they can''t see or touch.


    "No." the technology simulator is very straightforward.


    "The bottle in the mural is like Klein''s bottle." at this time, Xu Lianqiu was still studying the mural.


    Klein bottle is a geometric object proposed by mathematician Klein.


    That is, there is a hole at the bottom of a bottle, which extends the neck of the bottle, twisted into the inside of the bottle, and then connected with the hole at the bottom. There is no difference between the inside and the outside of such a bottle. It is not spherical, but a point will not meet the end point in any direction along its surface.


    The bottle neck of Klein bottle and the curve of the bottle body seem to intersect. Some parts seem to be broken, but it does not intersect itself - in short, this contradictory feeling can only appear in the three-dimensional perspective, but if viewed from the four-dimensional perspective, the image of Klein bottle is actually a continuous curve.


    "Hey, really!" others found out.


    Xu Lianqiu came to a place on the high platform according to the position on the mural. One of her hands stretched out and said, "the meaning of the mural may be that in this position, the ship owner put all its things in a space. We just can''t find this space."


    Everyone is thinking that everyone who is qualified to come to Mars for scientific research is a leader on earth. Their thinking is active. With a little information, they can associate many possibilities.


    The scene fell into a brief silence. It was not until Xu Lianqiu''s exclamation that they woke up.


    "My hand is gone?" her white jade like palm disappeared out of thin air!


    "What''s going on?" everyone was stunned. How could a person''s palm disappear out of thin air? From their perspective, Xu Lianqiu''s hand seemed to be suddenly invisible, and the light was no longer refracted back to people''s retina.


    "I can feel my palm!" Xu Lianqiu didn''t move. Her expression was very strange: "I feel it''s still there, but I can''t see it."


    Du Xingyu hurriedly said, "maybe your palm has entered a space. Take it back and try!"


    Everyone is full of questions about the unknown.


    "My God, today''s world outlook has been subverted!" Su Peng said with emotion.


    "I''ll try!" Xu Lianqiu tried to take back her palm. Everyone saw that her palm appeared again.


    "Do you feel anything?" Du Xingyu asked.


    Xu Lianqiu moved her palm. "Nothing unusual."


    "No, there''s a pattern on my palm?" she opened her almond eyes and looked at her palm in surprise. There was a pattern of "Klein bottle" on it, which was the bottle in the mural.


    "What''s going on? My brain is not enough!" Jiao Mengyun grabbed his hair.


    Don''t say it was her. Du Xingyu was confused at this time. He knows nothing about the means of high-dimensional civilization.


    Xu Lianqiu rubbed it carefully, but the pattern is not any ink. It can''t be rubbed off at all. If you look carefully, it''s not something like tattoos and tattoos, because it is evenly distributed in Xu Lianqiu''s palm and won''t change because of the stretching or locking of the skin. In other words, the pattern exists in a two-dimensional plane in the palm of her hand!


    "I can detect that the information of high latitude civilization remains in her palm. It seems that in that space, this creation has changed its shape into two-dimensional, which is very strange." the technology simulator explained to Du Xingyu, "I don''t know what this is."


    "It seems that I can''t understand this thing before I come into contact with latitude technology." Du Xingyu sighed helplessly.


    "What is this?" they are still studying the things in Xu Lianqiu''s palm.


    Others continued to explore where Xu Lianqiu''s hand disappeared, but no strange phenomenon appeared this time.


    Du Xingyu became serious and said, "there is no doubt that this is caused by some technology that we can''t understand. It may be the information left by advanced civilization. Everyone should not disclose what happened here today!"


    "This is my ban issued by the supreme commander of the alliance. Do you understand?"


    Seeing that he was so careful, the people immediately said seriously, "I understand!"


    This relic is sealed off, and some people will continue to explore, but the most important information has been taken away by Xu Lianqiu.


    Back to the Mars base, Du Xingyu asked someone to test her in all aspects, and almost nothing was detected.


    Only one thing is strange. In the cell test results, it was found that Xu Lianqiu''s cell activity increased, that is, her life state became very active, and some hidden diseases in her body disappeared.


    This state also amazed the medical experts.


    But Du Xingyu was not surprised by this. Because Xu Lianqiu''s physical state is very similar to him.


    After he obtained the science and technology simulator, his body also changed unconsciously, so his thinking speed, ability and health are much better than ordinary people.


    In this way, he can easily live to be more than 100 years old, but he can''t break the limit of human life at present.


    "Her state is different from yours," said the technology simulator. "Maybe she can break through the limit of human life."


    "I am more and more confused. What is the information of that high-dimensional civilization?" Du Xingyu couldn''t find the answer. So far, the pattern has not had any impact on Xu Lianqiu in other aspects.


    "You can''t understand these problems now," said the technology simulator. "Maybe you should worry more about yourself. You have a lot to do."


    "Yes." Du Xingyu pulled back his thoughts. The death star was still flying towards the earth. He didn''t have so much time to find the answer, so he had to put it aside for the time being.


    Before leaving, in the cafe of Mars base.


    A man and a woman are sitting opposite each other. The man is showing the woman "palms".


    Du Xingyu held Xu Lianqiu''s scallion finger and stared at the design of Klein bottle in her palm.


    "Congratulations, you are going to be the first of the ten unsolved mysteries in the new world!" Du Xingyu joked.


    "I would rather make complaints about it," he said. "Now I am a national treasure in the base, and I have been asked about sleep and food every day."


    "Isn''t this a good thing? Everyone cares about you." Du Xingyu smiled.


    "It''s a pity to send someone." Xu Lianqiu held her chin and looked at him quietly.


    "The situation is pressing!" Du Xingyu smiled bitterly.


    "Remember the scene when we first came to Mars? We had a sudden dust storm when we first came here. It has been nearly ten years." Xu Lianqiu sighed, "how many decades can life have?"


    Du Xingyu also felt a little surprised. It has been nearly ten years since they hugged each other to avoid dust storms!


    The friends around him have already married and had children, but he has always ignored time. There are few friends who can be accompanied all the time.


    When looking at Xu Lianqiu again, Du Xingyu suddenly felt thousands of feelings in his heart. For ten years, they have been working continuously, but even if they haven''t seen each other for a long time, they will feel familiar and kind when they meet.


    Maybe there is no tortuous love story in the drama, but the feeling of empathy is more important than anything.


    He stood up and said to Xu Lianqiu, "three years later, if mankind can cope with the crisis, we will be together."


    "Ah?" Xu Lianqiu didn''t expect that he suddenly said this sentence, showing a stunned, followed by an irrecoverable happy look pouring out of the corners of his mouth from the bottom of his heart, and even his neck and ears were stained with a little crimson.


    "Hmm!" she waited so long for this sentence that she didn''t have any affectation, so she quickly agreed to it so that Du Xingyu wouldn''t go back.


    "Commander Du, the silver wing is coming!" someone interrupted their rare intimate moment.


    "OK, I''ll come right away." Du Xingyu turned to Xu Lianqiu and said, "if you have any news, tell me at the first time."


    "I''m leaving!"


    "I''ll wait for you." Xu Lianqiu bit Bei''s teeth and stared at his leaving figure.


    ……


    The love affair between children and women was destined to be not Du Xingyu''s specialty. Soon, he returned to the earth and put himself into work again.


    In the military factory on the moon, the construction of "space meteor hammer" has begun.


    Physics experts, materials experts and military weapons experts from all over the world are giving advice for the asteroid impactor.


    The gravity of the moon is relatively small, and the successful asteroid impactor is easier to enter space.


    From the ground, a large amount of metal is transported into space through the ladder every day as the head of the meteor hammer.


    A year later, the first asteroid impactor, space meteor hammer 1, was manufactured in the lunar military factory.


    Its maximum cross-sectional diameter is up to 100 meters and its mass is one million tons!


    If this mass is on earth, it is difficult to send it into space by thrusters.


    But the moon has less gravity and no air resistance, so it''s much easier to push.