The last human in the universe

Chapter 34 Gold Mine
Gold is one of the most stable elements in chemical properties, and it does not react with other substances in most cases.This causes gold to exist in the form of a free element in most cases.Even in gold mines on the earth, gold is usually mixed with other substances, such as sand, etc., and usually sifted to get gold.

There are even large pieces of natural high-purity gold on the earth, which are commonly known as dog head gold.The piece in Zhao Changxing's hand at the moment is obviously a piece of dog's head gold.

It must have just fallen to the ground.Because this place is near a human building, I don’t know how many people have been here before. If there was one before, it would have been discovered by people a long time ago.And it has such obvious impact marks, which further proves that it was originally part of that asteroid.

And... There is even dog-head gold, which seems to mean that there is a high probability that there is more gold on that asteroid.

Zhao Changxing's heart was beating thumpingly.

In any case, he never imagined that the asteroid, which originally meant a huge disaster, suddenly changed its identity at this moment.

"Dad, let's move the equipment back to... 噫! What is this? Gold?! Where did it come from?!"

Qian Yue's words interrupted Zhao Changxing's meditation.After seeing the gold in Zhao Changxing's hands, through the mask of the space suit, Zhao Changxing clearly saw that Qian Yueman opened his mouth wide in shock.

Zhao Changxing raised his head and pointed to the shining star—at the moment it is only a few hundred kilometers away from the surface of Sedna, and it can be clearly seen with the naked eye: "If I guess correctly, it should be from It fell from it."

"It's not saying, it's not saying..."

Qian Yue was so shocked by the huge surprise that she couldn't even finish her sentence.

The conversation between the two quickly attracted the attention of the rest.People quickly gathered around, looking at the gold in Zhao Changxing's hands, each exclaimed.

"Such a large piece of gold must be at least five kilograms?"

"I see six kilograms."

"There are so many, even if there is nothing else, let's finish building No. [-] base, I'm afraid it will be enough?"

"Absolutely enough, there is still some left."

"I'll look for it on the asteroid!"

At this moment, people once again paid attention to the asteroid.But at this moment, I am not worried that it will hit Sedna Star, but I am worried about whether it will gain the speed to break free from Sedna Star under the continuous jet of gas, and then go away and step into the universe again. nor come back.

People don't know exactly how much gas is inside the asteroid, how long it can be ejected, and how much force it can provide.Before, people just wished for more, but now people pray for less.

"Don't go now, it's too dangerous." Zhao Changxing stopped the excited people: "The gas ejection is still going on, it is easy to have accidents when landing now. Wait a little longer."

With such a huge and fast jet of gas, the gas inside it should be exhausted soon.It's just that before the gas is exhausted, no one can be sure whether it will give it enough strength.

"Or, let's find a way to blow up the gas channel to be bigger, so that we don't have to worry about it breaking away from Sedna's gravitational field."

The gas channel increases, the gas flow rate slows down, and the reaction force decreases.

Zhao Changxing shook his head: "We don't have enough explosives. It's too late to make them now."

It will take several months for people to recreate enough explosives—the current chemical plant has been dismantled of all key equipment, and it will take time to install and debug the key equipment from the Tinder spacecraft.By then, if the asteroid was going to fly away, it would have flown away long ago.

"Ok."

"Now, let's move the materials back first, and restore the operation of several bases first." Zhao Changxing gave the order: "If this asteroid is going to fly away in the end, then we are not lucky."

After the disaster subsided, people started the work of moving the materials back again.Different from the previous relocation work, everyone at this moment is in high spirits and relaxed.

This time, at work, people have another concern.Almost every day, people have to check the gas ejection process of that asteroid, calculate its orbit, calculate how far it is from breaking free from the gravitational field of Sedna star, and pray that it will stop ejecting soon and stabilize .

Today, people have even given up hope in finding gold mines on Sedna, or even if they still have hope, they subconsciously think that it will be very difficult.Now, there is an alternative that most likely contains a lot of gold, and everyone is hoping to get it.

Among the relocation work, Zhao Changxing set the No. [-] planting base as the highest priority relocation task.In any case, the No. [-] planting base must resume production as quickly as possible. For this reason, Zhao Changxing would rather people spend a little longer in the crowded and small Pyrotechnic spaceship.

In less than a month, the equipment that had been dismantled and moved away was installed in the No. [-] planting base as it was, and the planting of crops began immediately.A large number of corn, wheat, rice, soybeans and other crops began to grow again, and Zhao Changxing's heart, which was always worried about famine, was finally stabilized.

After that, it was the turn of the No. [-] comprehensive base to restore.On the third day after this work was carried out, people were surprised to find that the gas ejection that had lasted for a long time on the asteroid showed a weakening trend, and it seemed that the internal pressure had decreased.

The comprehensive base No. 90.00 has also been restored, and adults can finally move back into the comfortable and spacious double-shared room compared to the Tinder spaceship. It has decreased by more than [-]%, and it is still continuing to decrease.

This means that landing on this asteroid has become possible.So after a period of preparation and planning, Zhao Changxing led several people and brought relevant prospecting equipment to land on this asteroid again.

At this moment, the mass of this asteroid has been reduced by more than 3000 million tons compared to the original.Even if the debris thrown out due to the explosion and orbital changes are removed, the mass of the ejected gas is as high as 2000 million tons or more.This makes people have to lament the abundance of gas material reserves on this asteroid.

At the moment, its orbit is at an average distance of more than 2000 kilometers from Sedna.Based on this distance, its current orbital data and the reaction force of the gas ejection, it can no longer break free from the gravitational field of Sedna star.This also means that people have obtained this asteroid almost permanently.Of course, if it doesn't have precious minerals such as gold on it, it's useless.

Wearing a space suit, Zhao Changxing and the others flew around its surface like supermen, touching here and looking there.After being busy for more than half an hour, Chen Feng suddenly shouted excitedly: "Dad, come and see!"

Zhao Changxing's heart skipped a beat, and he and the rest of them immediately flew towards the place where Chen Feng was in the spacesuit.

The place where Chen Feng is located is a "mountain" more than 50 meters high.Flying directly over, people saw Chen Feng holding a black-gray stone the size of a fist in his hand.Shining the light of the spacesuit headlight on it and observing carefully, Zhao Changxing saw a golden-glowing object about the size of a small grain of sand among the sharp edges and corners above the stone.

"Golden sand? Take it to the spaceship to see."

A few people hurriedly flew back to the Falcon [-] spaceship that was moored nearby, following the asteroid orbiting the Sedna star, carefully smashed the stone with a hammer, and smashed the dozens of golden grains found. The gravel is collected and placed under the instrument for testing.

The test results came out quickly, and there was no doubt that it was gold.It's just that some silver is mixed in it, and the whole exists in the state of amber gold.

This was another surprise.You know, not only gold, but also silver is relatively scarce on Sedna.Although there is no shortage at this stage, in the long run, if no silver mines are found, the silver will obviously not be enough.

Now, two rare mineral deposits have been found from an asteroid.

At this moment, it is almost certain that there are quite high reserves of gold and silver mines on this asteroid.The moat that lay in front of human beings disappeared instantly at this moment.

"I don't know which supernova explosion created these golds, I don't know how long they wandered in this vast universe, what happened to them, and finally entered the solar system and were discovered by us. But it doesn't really matter, the important thing Yes, now, the gold and silver are all ours!"

Zhao Changxing's heart was full of agitation.

"When we have a larger population, it will be necessary to directly build a gold refinery here."

It is too troublesome to directly pull the ore back to refine it. It is more time-saving and labor-saving to directly build a gold refinery here to refine the gold and transport it back.

This trip has come to a successful conclusion.The people left the Falcon [-] spacecraft again, manipulated the instruments to mine about a dozen tons of gold ore for the initial test, and returned to the Sedna planet smoothly.

With the supplement of that piece of natural dog's head gold, there is no obstacle to the construction of the No. 60 comprehensive base.At this moment, people are hurrying to restore the industrial zone and build the No. [-] comprehensive base.When the No. [-] comprehensive base is completed, [-] third-generation people can actually move to live on Sedna.

Time passed quickly, and this day has come soon.At this moment, the number of adults under Zhao Changxing who can be assigned to work has reached an unprecedented 100 people.

With enough manpower, many subsequent tasks can also be put on the agenda.

(End of this chapter)