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Tang Xiaochuan is wearing a spacesuit, with a spacesuit resource box on his back, and a box for storing samples tied around his waist. On his shoulder is a live broadcast device. He holds a detection instrument in his left hand and a pick-up claw in his right hand, step by step towards reflection. Objects of colorful and brilliant colors come out.

As he walked, he found that the object was not only reflective, but also transparent. At this time, he glanced at the detection instrument in his hand, and found that the values ​​​​showing several radiation values ​​on the instrument became smaller and smaller as he approached the object. .

When I walked to a position only about one meter away from the object, the radiation values ​​displayed on the instrument all became zero.

"Huh?" Tang Xiaochuan couldn't help crying out. He stepped forward and squatted down on one knee, then stretched out the fetching claw on his right hand to grab objects on the ground.

"This thing is the size of a fist, and it is an irregular polyhedral sphere, but each of its sides is smooth, which may also be the reason why it reflects light, but it also transmits light, and light can pass through it. It's very strange, but it's very beautiful and extremely beautiful. I want to take this thing back. It is probably an extremely precious gemstone. If it is not harmful to the human body after testing, I want to find someone to give it to me after some carving. What do you guys think of my wife as a present for my third wedding anniversary?"

Countless fans immediately shouted in the live broadcast room.

"Wow, the captain is so loving and kind to his wife, I'm so envious!"

"Woooooooooooooooooooooooooooooooooooooooooooooooooo, I brought back a jewel from the moon hundreds of thousands of kilometers away and gave it to my wife as a gift for the third wedding anniversary. The captain's wife is so happy!"

"Excuse me, captain, do you still lack a concubine?"

"I volunteer to be a mistress, the kind that doesn't want a name!"

Tang Xiaochuan raised his finger: "Shh, don't make a loud noise, don't let my wife know, I have to give her a surprise, if she knows, there will be no surprise!"

At this time, in the villa of Binhai Yuehu Manor, Guan Jingwen watched the live broadcast on the big TV screen, couldn't help but covered her face, tears couldn't stop streaming down.

Seeing this, her mother put her arms around her shoulders, patted her lightly and said, "It's okay, he will be fine, and he will come back completely!"

At this time, some netizens on the Internet shouted: "The resources on the moon belong to all human beings. This gemstone should be given to our cold country for research purposes! And the collected rock and ore samples should also be given to our country." This is the style of a big country!"

This remark immediately attracted a lot of condemnation.

"Nimma, why are you so shameless? The moon is so big, if you have the ability, you can also launch a spaceship to sample it!"

"We finally landed on the moon to collect samples, and you just want to pick up ready-made ones?"

"Get out, this kind of words can be said, I don't even want to hear it!"

"I'm too lazy to talk to you!"

When there was a lot of scolding on the Internet, Tang Xiaochuan observed the fist-sized shiny object on the fetching claw up, down, left, and right at this time, and then put it on the ground, then illuminated it with headlights, and kept moving back.

While backing away, he looked at the various radiation values ​​on the detection instrument, and found that the radiation values ​​were getting bigger and bigger. After retreating to 20 meters away, he stopped, and then walked towards the object. At this time, the various radiation values And getting smaller and smaller.

Could it be...

In order to verify his conjecture, Tang Xiaochuan walked in front of the gemstone again, and all the radiation values ​​became zero again, which seemed to prove his guess, but for further confirmation, he walked over the gemstone and continued to move forward. The various radiations began to increase slowly.

Next, he verified from different directions, without exception, it proved that as long as you get close to this gemstone, the radiation value will become smaller and smaller, and as long as you get close to it within one meter, all the radiation will disappear.

Note that it is all kinds of radiation, including ionizing radiation, electromagnetic wave radiation, particle rays and so on.

In addition, Tang Xiaochuan noticed that as long as he was within a certain distance of this gemstone, the temperature value on the detection instrument would suddenly rise to 18 degrees Celsius, and it remained unchanged.

This made Tang Xiaochuan feel very surprised. He thought for a while and moved the picking claw away and put it nearby for a while, then merged it with the detection instrument and slowly approached the gemstone. After entering a certain distance from the gemstone, the instrument again It shows that the temperature of the retrieval claw is increasing rapidly, but after getting closer to a smaller area around the gemstone, the temperature of the retrieval claw stops constant.

Tang Xiaochuan thought for a while, moved the detection instrument, but moved the pick-up claw away, and the temperature on the detection instrument was still the same as before, unchanged! He put the retriever claws that had been removed together with the detection instrument again. At this time, the two objects were within the close range of the gemstone, but the temperature on the instrument suddenly changed, and the rapid drop soon became It reached minus 18 degrees Celsius, but then the temperature began to rise slowly, very slowly.

This shows what? Tang Xiaochuan suddenly understood that this gem can emit a special force field, which has the natural characteristics of being able to isolate all radiation, including thermal radiation, but its temperature within a short distance is variable. The temperature in a circular space with a radius of one meter in the center will always be kept at 18 degrees Celsius, but it will not affect the body temperature of the human body, nor will it affect the heat dissipation of the human body to the outside. If it is made into jewelry, such as a ring, wearing On the finger, whether the person is near the hot equator or in the cold north and south poles, he feels like he is living in spring.

This thing is absolutely priceless!

The more than one billion netizens in the webcast room are very puzzled at this time.

"What is the captain doing? Don't speak, don't make a sound, just walking around here, turning around, what's going on?"

"Yes, what the hell is the captain doing? Measuring the land with your feet?"

"Why is the captain's behavior so confusing to me?"

Tang Xiaochuan didn't reply, he grabbed the gemstones with his claws and put them into the sample box, then took out a few number labels from an equipment box and pasted them on several samples, and wrote down the coordinate points of sampling with a pencil, so as to This is used to mark the label.

"Do a good job of labeling and recording the coordinate points of sampling. After we bring them back later, we will know what components are inside them and where the samples are taken through testing, so that they will not be confused with other samples. The geological composition and mineral division of the region is good!"

"Okay, the sample collection here is complete, let's move on!"

After returning to the car, Tang Xiaochuan let the air pressure and temperature in the car return to normal, then put the samples he took into one of the sample boxes on the car, and marked the boxes again, so that the functions of the spacesuit were spread. Take off the helmet and continue driving along the planned driving route.

Along the way, he stopped and stopped from time to time or used instruments to detect geological landforms and mineral divisions, or to pick up samples.

Originally, it only took an hour's journey, but he drove for two and a half hours before arriving at his destination.

"Already close to the destination, there are still ten kilometers left. Abnormal gravity has been detected, and the radiation value has increased. Please pay attention to the driver and prepare for protection in advance!" The mechanical sound of the on-board system reminded.

Tang Xiaochuan looked at the detection instrument and found that the radiation value displayed on the instrument has indeed increased a lot, and the value of gravity is indeed rising slowly. At this time, it is close to 3 points. If he continues to approach, he believes that the gravity will increase. This is the so-called gravity anomaly.

Moreover, when he was sitting in the car, he himself did feel the gravity has changed. It turned out that once the car shook while sitting in the car, his body would become light. Now that feeling has decreased significantly, which means that the gravity has increased. Yes, and doubled.

Tang Xiaochuan said while driving: "The reason for the abnormal gravity is that I think I am getting closer and closer to the destination. There is a mascon in the center of Chenghai. Under the same volume, the mass of objects in this area is obviously larger than that in other areas. This is The reason for the increased gravity!"

"How did the mascon come about? According to the research of scientists from various countries, some people think that it may be that the meteorite hit the moon and broke through the moon's crust, exposing the moon's mantle, which caused the molten magma in the moon's mantle to pour out, but there are also scholars. It is believed that the mass part of the meteorite impacted to the center, but the main component of most mascons on the moon is basalt!"

After driving the car for a while, the gravity number on the detection instrument is getting bigger and bigger, and the radiation value is still increasing, but it is still within the range that the space suit can bear.

"Arrive at the destination, the driver please pay attention to safety!"

Tang Xiaochuan put on his helmet, turned on the temperature control and air pressure balance functions, looked at the testing equipment again, emptied the air in the car, opened the door, and got out of the car with the equipment.

He looked up at a huge plateau not far away, "Look, this is the Chenghai mascon area. Now we can see that the gravity here is much higher than other places. When the mascon is in the sky, the sudden increase in gravity will cause the satellite to deviate from the established orbit. If it is not corrected, the artificial satellite will crash in a few months or a few years. A sub-satellite of the Mei people used to be due to this reason And if it crashes, of course our Yuewei 999 will also be affected by this, but it has an automatic orbit correction program, so the above situation will not happen!"

"Actually, we also have mascons on our planet. Viewers and netizens can check it online and find out!"

Tang Xiaochuan was walking on the raised massoma plateau while holding the equipment, while talking to netizens, he stopped from time to time to pick up a stone and put it in the box.

"I took a look just now. Even in this area, the gravity of each location will be different. Although the change is not big, it is indeed different. This is what we call gravity anomalies!"

"But not all mare areas on the moon have mascons, and not all mare regions have higher gravity than other places!"

After walking for a while, the box around Tang Xiaochuan's waist was already filled with various rock samples collected, "My box is full, it seems that I have to go back to the car and drive the car over , we will leave here in half an hour at most!"