The work continued, the three of them had a clear division of labor, and after more than an hour, seven truckloads of ice mines had been sent to the base, about ten cubic meters of water ice. Pen ~ fun ~ pavilion www.biquge.info

Ye Han stopped working when he had half an hour of air left, and returned to the base with the lunar rover, when it was four hours before breakfast, and it was already lunchtime.

The three of them returned to the living capsule, took off their spacesuits, and after a brief wash, they prepared for dinner.

As soon as Ye Han entered the restaurant, he saw half of the people in a group, and couldn't help but ask curiously, "Why are you only half back?" ”

Fang Xu pulled the corners of his mouth helplessly: "People don't rest when they rest on equipment, they are still on the construction site, and we will go over to replace them after eating for a while." ”

Ye Han sat beside Fang Xu and asked with concern, "Is their air enough?" ”

"We brought gas tanks, and when we are familiar with the situation, we have to subdivide it, and four groups of people circulate all day, 24 hours a day."

Ye Han sizzled inhaled: "This is really ......" There is no need to say what it is, everyone understands the importance of the lunar base, and if it can be put into use one day earlier, it can save huge amounts of money and massive resources.

Everyone sent by the state to the moon has undergone the strictest political scrutiny, so what is the difficulty of continuous construction? Sensei said that it is four shifts a day to change the guard, even if it is a shift every 24 hours, there is no problem.

Perhaps a four-hour shift would seem to be nothing difficult on the ground, and one might even think that such an arrangement would be easy, but on the moon, a four-hour shift would not be so simple.

The air carried by the spacesuit can be used for a maximum of five hours, and the four-hour shift is a very realistic arrangement.

In addition, the excretion problem is a big one. Trouble, although this topic is not elegant, it is an important issue that exists in real life and cannot be ignored by anyone.

The spacesuit can absorb urine, but it cannot handle the large size, so it is stipulated that everyone must empty the inventory before leaving the living module to avoid the need for large size during the out-of-cabin activities, and those with diarrhea are excluded from the mission...... Can't you just go halfway through work and hurry back to the living cabin to go to the toilet, right?

If it is a four-hour shift, the trumpet can try to wait until the shift change to go back to the living cabin to solve the problem.

Although the gravity on the moon is low, the full weight of the astronaut wearing the spacesuit is about the same as the weight on the ground, but the equipment on this body consumes a lot of additional physical strength, even if it is just to manipulate mechanical equipment, it is not as easy as imagined.

Fang Xu also sighed: "How are you guys over there?" ”

"It's okay." Ye Han said, "The ice in this place is also quite complicated. ”

Yuan Yu walked into the restaurant with a plate, and everyone immediately greeted him and brought lunch to the table.

The food at noon is very simple, rice, fish-flavored eggplant and meat are added back to the pot, and it is still a fixed amount.

Everyone finished their lunch in silence, Fang Xu and the others immediately returned to the construction site to replace their companions after eating, Ye Han hesitated, and also asked the two of them to leave the living cabin.

The water treatment chamber is located between the living chamber and the vegetable garden, and the ice cubes sent back in the morning are piled up outside the treatment chamber, and the square ones are neatly stacked on the side, irregularly and directly piled together.

Opening the shell of the water treatment equipment, revealing about half a cubic space inside, Ye Han took a look with his teeth, and found that most of the ice cubes sent back in the first batch exceeded the standard and could not be put in at all, so he simply gave up all the low-quality ice mines, directly put the ice cubes with less impurities into the container, and then covered the lid tightly.

After getting ready, Ye Han activated the melting function.

This thing is essentially a large microwave oven, a device designed to melt ice. That inconspicuous lid is actually an airtight door that ensures pressure inside the container.

With the microwave heating, the ice cubes in the container gradually melt, because there is no air pressure in the container at all, the freshly melted water immediately enters the boiling state, and the water vapor quickly increases the air pressure in the container, so that the newly melted water is no longer boiling.

In a short time, all the ice melted, and at the same time that the ice melting process ended automatically, the filtration equipment was activated, and the water in the container quickly flowed away, leaving only a layer of sediment at the bottom.

After the water enters the equipment, it must go through several filtration procedures and the water quality must be rigorously tested, not only to detect harmful substances such as residual radioactive substances for the components, but also to test the volume and quality to ensure that the collected water does not contain heavy water.

Don't doubt it, it's about testing the heavy water content.

The difference between heavy water and light water is very small, but there is one more neutron in the hydrogen atom of heavy water, the chemical properties of the two are exactly the same, and the physical properties are slightly different.

But the situation in this world is so weird, heavy water, which is completely non-toxic, will accumulate in the body after entering the human body!

The extra neutrons in heavy water are inconspicuous, but they double the weight of hydrogen atoms, strengthen various chemical bonds, and slow down in chemical reactions.

That is to say, light water will be excreted normally after entering the human body, while heavy water will live in the body, if a large amount of heavy water accumulates in the body, heavy water will interfere with the body's metabolism, reduce the speed of metabolism, and the cells and tissues that need to divide quickly will not have abnormalities.

Even the rampant cancer cells will slow down their spread due to the accumulation of heavy water, but the degree of slowing down is limited and cannot be used to treat cancer.

The content of heavy water in the earth's water is about 0.02%, which will not affect the earth's life, but the source of the water ice on the moon is a mystery, and the ghost knows how much heavy water is contained in the ice, and it may even be composed entirely of heavy water, so it must be strictly tested to rule out any possible hidden dangers.

On Earth, it may be a cause for concern, but on the Moon, it may directly threaten the health of astronauts.

The test results stunned Ye Han and others, the heavy water content in the ice mine was actually more than thirty times that of the earth's water!

Although 0.6% should have no effect on humans, and heavy water can be separated by water treatment equipment, the impact on other aspects is greater.

This thing is the moderator and coolant of nuclear reactors, and it is also an important raw material for the production of nuclear weapons!

After the asteroid impact incident, the world's nuclear weapons have been depleted, and there are very few nuclear materials left, and the demand for nuclear materials is incredibly large, even if the separated heavy water is directly sent back to Earth by spacecraft, it is a good business.

However, the cost of launching a spacecraft from the earth is too high, as long as the moon must have a certain manufacturing capacity, it is completely possible to use a spacecraft with a very simple structure to deliver raw materials to the earth.

If you think about it further, the moon has no atmosphere, and the moon base can make a hole deep enough in the ground and lay a long enough electromagnetic orbit to launch a spacecraft.

Seon lost his horse and knew whether it was a blessing or not, and the solution was thought up by man.