Chapter 2877 How to be stingy is also a kind of knowledge
"It can still be like this. I thought these spaceships were disposable and useless after use." The host was obviously surprised after hearing what Professor Huang said.
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 civil aerospace company, so any project needs to be responsible for its own profits and losses. 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 that, and it can relay and amplify signals 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 to be left as garbage wherever it is, but it is better to recycle the waste and dismantle some valuable parts from it.
The parts and materials are used for the construction of scientific research stations and related needs of 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 we must make full use of all existing resources."
Director Zhang on the side continued what Professor Huang said: "These two landers actually have many very important parts on them, which will provide help for the subsequent construction of scientific research stations.
And in order to meet this purpose, the team of technical experts has already considered this when designing this lander. That's why we see that this lander looks so rough and messy, but it is actually for the subsequent disassembly and
Prepared for 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 not an exaggeration to say that it’s an iron rooster whose feathers are plucked by geese.”
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, these 38 grams could not be reduced no matter what."
"Thirty-eight grams, which is less than one or two grams, 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, how did you 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 left to reduce.
If it doesn't meet the standard 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 the problem of 38 grams.
Why it takes so long 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 internal gaps 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. More importantly,
This glue requires very little 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 we solve the overweight problem, but we 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."
Fuck you. Director Zhang’s face darkened and he said in anger.
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 joking, 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 side 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 lunar.
It is a relatively young meteorite impact crater with 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 impact craters of Copernicus and Tycho. Currently, the most mainstream theory in the academic circles is the impact of asteroids. As for where the asteroids that hit these two craters came from, there are currently different academic opinions. There are
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. This is of very important research significance for studying the origin of the solar system.
It is said that the impact of these two craters is 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."