"It can still be like this. I thought these spaceships were disposable and useless after use." The host was obviously surprised after hearing Professor Huang's words.
Professor Huang said with a smile: “This is the difference between commercial aerospace and our traditional aerospace. Commercial aerospace pays more attention to costs and benefits.
In other words, they are a civilian aerospace company, so any projects need to be self-financing. Therefore, the cost control of these projects is very good.
The spacecraft's lander has basically completed its mission after landing on the moon. There may be some leftovers before it, which can serve as signal relay and amplification to make contact with satellites in lunar orbit and ground stations on the earth.
However, as Haoyu Aerospace established a large-scale data antenna system on the moon, the lander has basically lost its function. It is expected that it will become garbage wherever it is placed. It is better to recycle the waste and dismantle some valuable parts and materials for use in the construction of scientific research stations and subsequent lunar exploration projects.
After all, these materials and parts on the lander are very rare on the moon, because it is too far away from the earth and the resources are currently too few, so all existing resources must be fully utilized. "
Director Zhang on the side continued what Professor Huang said: "These two landers actually have many very important parts on them, which will help with the subsequent construction of scientific research stations.
And to meet this purpose, a team of technical experts took this into consideration when designing the lander. That's why we see that this lander looks so rough and messy. In fact, it is all in preparation for subsequent disassembly and reuse. "
Hearing what the two experts said, the host nodded and said: "So that's the case. This also solved the doubt in our minds. I have to admire these engineers. They really used their stinginess to the extreme. They regarded it as It’s no exaggeration to say that it’s an iron cock that plucks its feathers.”
Hehehe...
The two experts smiled, and Director Zhang said: "Actually, this is very common in our aerospace field. Many spacecrafts are actually reduced one gram by one gram in order to prevent them from being overweight.
I once presided over a mission. In order to be able to carry one more piece of equipment, we needed to reduce the weight of the entire spacecraft. The previous points were easy to say, but in the end, the 38 grams could not be reduced no matter what. "
"Thirty-eight grams, which is less than one or two pounds. Is it so harsh?" the host asked in surprise.
Director Zhang nodded: "Our aerospace field is very sensitive to weight, and every gram is very important. It may be the weight of this gram that will cause problems with the spacecraft.
With one more gram left, we can add one more gram of fuel to the spacecraft, and its working time can be extended a little bit. "
So that’s it, so how did I lose the last 38 grams? the host asked.
Director Zhang heard this and replied: "At the beginning, we had no choice because we had already cut off everything that could be reduced, and there was really nothing that could be reduced.
If it doesn't meet the standards and the other side doesn't sign it, the spacecraft won't be able to grow, let alone be launched. So we spent more than half a month trying to solve these 38 grams.
Why does it take so long? This is because we have already reduced everything that can be reduced, and we will not reduce the things that cannot be reduced, because we do not regret exchanging quality for weight. This is our bottom line and principle.
How to solve this problem in the end? When we reviewed it, we found that in order to maintain heat inside the spacecraft, many gaps inside the spacecraft were filled with glue. This glue can not only strengthen the structure of the spacecraft, but also It has strong sealing properties, which can achieve a thermal insulation effect, thereby helping the spacecraft withstand the huge temperature difference between day and night in space.
So we decided to start with this glue. When we cleaned up all the glue on it and carried it, we found that it weighed more than 400 grams, which proved that our choice was right.
So after removing this glue, how should we replace it, so we conducted public relations research and found a new glue that is more viscous, more stable, and resistant to cold and high temperatures. What's more important is that this glue only requires a very small amount to achieve a very good seal, and is no worse than the previous glue.
So we decisively applied to replace this glue, which also allowed us to lose nearly 200 grams from the spacecraft. Not only did it solve the overweight problem, it also freed up more than 100 grams of redundant weight. "
Professor Huang on the side heard this and joked with a smile: "I asked you why you are so stingy. It turns out there is a connection."
screw you. Director Zhang's face darkened and he said angrily.
Hehehe...
The host joked: "It seems that being stingy is also a kind of knowledge. If the audience wants to learn how to save money, then choose to enter the aerospace technology industry."
After making a joke, the host then asked: "Why did Haoyu Aerospace choose the location in the northwest of Zhihai, near the Liffey Mountains, to build a lunar scientific research station? What is it about this place that attracts them to build a large-scale construction here regardless of investment? Here What’s special?”
Professor Huang nodded when he heard this, then looked at the lunar satellite map switched by the large screen guide in front, and then said to the host: "We can first take a look at the location of Zhihai, which is located in the high latitudes of the southern hemisphere on the front of the moon. The South Pole of the Moon is very close.
In addition, there are many famous lunar geographical landmarks nearby. For example, not far to the north is Copernicus, the most famous meteorite impact crater on the moon. It and Tycho crater are both on the moon. A meteorite impact crater that is relatively young and has a very large impact capability.
As for the Tycho meteorite impact crater, it is at the South Pole of the moon, not too far from Zhihai.
There are many theories about the Copernicus and Tycho meteorite impact craters. Currently, the most mainstream theory in the academic circle is the asteroid impact. So as to where the asteroid that hit these two craters came from, there are currently different opinions among academic circles. It is said that they may come from the asteroid belt and are products of the early formation of the solar system. They may carry materials from the early formation of the solar system, which is of great significance for studying the origin of the solar system.
It is said that the impact of these two craters was so powerful that they may have come from outside the solar system. Then they may carry some materials from outside the solar system. This is of great significance to our study of the universe, especially the universe outside the solar system. value.
No matter which one it is, the materials emitted from these two craters are of great research value. "
(End of chapter)
