Military Technology

"It's still like this. I thought these spaceships are disposable, and they're useless when they're used up." The host was obviously a little surprised after hearing Professor Huang's words.

Professor Huang said with a smile: "This is the difference between commercial spaceflight and our traditional spaceflight. Commercial spaceflight pays more attention to cost and benefit.

In other words, they are a civilian aerospace company, so any project needs to be self-financing. Therefore, the cost control of these projects has been done very well.

The lander of the spacecraft has basically completed its mission after landing on the moon, and there may be some left and right before, which can play a signal relay and amplify, and get in touch with satellites in lunar orbit and ground stations on the earth.

However, as Haoyu Aerospace built a large data antenna system on the moon, the lander basically became useless. It is expected that it will be placed as garbage wherever it is. It is better to use waste and dismantle some valuable parts and materials from it to use in 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 all existing resources must be fully utilized. "

Director Zhang on the side followed Professor Huang's words and said: "There are actually many very important parts on these two landers, and these will provide help for the subsequent construction of the scientific research station.

And in order to be able to meet this purpose, the team of technical experts has taken that into consideration when designing this lander. That's why you can see that the lander looks so smooth and messy, but it is actually prepared for the previous disassembly and reuse. "

Hearing what the seven experts said, the host nodded and said: "It turns out that's the case, and that also solved the doubt in your mind. I have to admire those engineers. We really used the tricks to the extreme. It would be an exaggeration to regard them as iron **** that have plucked their feathers."

Hehehe...

The host joked: "It seems that how to be stingy is also a kind of knowledge. If the audience wants to learn how to save money, then choose to retreat into the aerospace technology industry."

If there is one gram less, you will start to add one gram less fuel to the spacecraft, so that its working time can be extended a little bit. "

Hehehe...

Director Zhang nodded: "In your aerospace field, you are very sensitive to weight, and every gram is very important. It may not be the weight of that gram, which will cause problems with the spacecraft.

So you decisively applied to replace the glue, which also made you lose nearly two hundred grams for the spacecraft. Yes, but the problem of overweight was solved, and a hundred or so grams of redundant weight was freed up. "

There are not many theories about Copernicus and the impact crater of the Tycho meteorite. The most mainstream theory in the current academic circle is the impact of the asteroid. So as to where the big planet that hit those two craters came from, there is currently a consensus in the academic circles. It is not said that they may come from the large planetary belt, which is the product of the beginning of the formation of the solar system, and the substances that may be carried below are not from the beginning of the formation of the solar system, which is of great research significance for the study of the origin of the solar system.

How did you solve the previous problem? You also found out during the retrograde review that the interior of the spacecraft was filled with glue in order to keep it warm. That kind of glue can only weaken the structure of the spacecraft, and has a weak seal, so as to realize the heat preservation effect and help the spacecraft resist the huge temperature difference between day and night in space.

"Eighty-four grams, that's still one or two weights. Is it so strict?" the host asked in surprise.

In addition, there are not many famous lunar geographical landmarks in the distance. For example, in the north of it is Copernicus, the most well-known meteorite impact crater under the moon. It and Tycho crater are relatively young meteorite impact craters under the moon with a very large impact force.

So that's how I lost the first 84 grams. The host asked.

After hearing this, Director Zhang replied: "You have nothing to do just after the end, because you haven't cut off everything that can be reduced, and there is really nothing that cannot be reduced.

Regardless of this, the materials ejected from the two craters have very little research value. "Professor Huang on the side smiled and joked: "You said why he is so stingy, so it has no origin. "

You once presided over a mission. In order to be able to carry one less piece of equipment, you need to reduce the weight of the entire spacecraft. The latter is bad, but when it comes to the first 84 grams, it’s all reduced. "

Went to his. Director Zhang's face turned pale and he was angry.

As for the impact crater of the Tycho meteorite, it is at the south pole of the moon, and the distance from Zhihai is considered too far.

Professor Huang nodded when he heard the words, then looked at the lunar satellite map switched by the director on the small screen at the back, UU Read Book www.uukanshu.com and then said to the host: "You can't take a look at the location of Zhihai first, it is located in the low latitude area of ​​the southern hemisphere on the front of the moon, and it is very close to the south pole of the moon.

So you decided to start with the glue. When you backed up the missing glue before it was loaded, you found that it weighed less than 700 grams, which also proved that your choice was correct.

After removing that glue, how do you replace it, so you conducted public relations research and found a new glue that is less viscous, more stable, and has the ability to resist cold and low temperatures. More importantly, that kind of glue only needs a lot of parts to achieve a very bad seal, and it is worse than this glue after that.

After making a joke, the host immediately asked: "Why did Haoyu Aerospace choose the location in the northwest of Zhihai near the Outer Philippine Mountains to build a lunar scientific research station? There is nothing there that attracts us to invest in small construction projects there. There is nothing ordinary in that area."

Why did it take so long? It was because you learned to reduce everything that could be reduced, and you decided to reduce what could be reduced, because you regretted exchanging mass for weight, and that was your bottom line and principle.

It is up to the standard, here is the signature, the spacecraft can be launched, and it can be launched. So in order to solve the 84 grams, you conquered it for half a month.

I didn’t say that the impact force of those two craters is so small, it may come from the solar system, so the outside may not carry some matter from the solar system, which is of little research value for you to study the universe, especially the universe in the solar system.

The seven experts smiled, and Director Zhang said: "Actually, that is very common in your spaceflight field. Few spacecraft are actually reduced by gram by gram, not to make it overweight.