The machine in front of it is the legendary industrial mother machine, the core of industry.

The mother machine is the manufacturing machine and machine, which is usually used to make all kinds of high-precision machine tools, and is the top priority of restarting civilization.

However, this thing is also in storage, and under normal circumstances, it will not be opened.

The one around is a heavy metal 3D printer, and it is the only super-large machine currently in operation, which can be used to produce some parts that are not particularly complex.

3D printing is a rapid prototyping technology that uses adhesive materials such as powdered metal or ceramics to construct objects layer by layer based on digital model files.

In other words, after designing a device from a computer, it will automatically spit out various parts and assemble them.

"This classmate, you can only see, you can't touch, don't move. You can't afford to break it! ”

One of the staff members saw Zhang Yuandong looking around, and hurriedly issued a warning.

They don't like visitors like Zhang Yuan very much.

Flying around in this place, if you really hit something,

Although it is not a big deal, the safety protection of the industrial zone has long been very perfect. It's just that it's still annoying.

Senior Brother Zhao scolded with a smile: "Lao Li, what are you doing? This is my junior brother, be respectful! ”

"Hello Senior Brother Li." Zhang Yuan hurriedly shouted.

Every place in this production room is an important position that is knowledge-intensive, technology-intensive, and talent-intensive, and the minimum education is also a doctorate, so it is nothing to call a senior brother.

Stretching out his hand not to hit the smiling person, Lao Li glanced at Zhang Yuan and said: "These are the top big toys, if you want to study, you can call me, as long as you don't sneak in and mess around!" ”

"A few foreign interns actually slipped into the warehouse and almost started the industrial machine tool, but I was blown up."

Senior Brother Zhao smiled and asked, "What happened later?" ”

Senior Brother Li snorted: "I originally wanted to call the police and let them be forced to hibernate, but seeing that they were crying bitterly, I relented for a while and let go of ......."

Senior Brother Zhao turned around and joked: "Lao Li is a person with very soft ears, if you pretend to be pitiful, shed painful tears, and ask him to use a 3D printer to help you get a real machine, it's not impossible......"

Zhang Yuan stared at him and pretended for a long time, but found that he couldn't pretend to be very pitiful.

It seems that he has no way to rely on his acting skills to eat, and from now on, he can only win with strength.

The entire factory on the first floor is almost there, and there are second, third, and fourth floors under the spaceship, which are mineral smelting and light industry production plants, which can be visited later.

Zhang Yuan was also embarrassed to disturb other people's work, pulled Senior Brother Zhao and left in a hurry......

"After reading this, how do you feel?" Senior Brother Zhao asked for the first time.

Zhang Yuan sighed, "It's great!" These machines can be said to be the crystallization of the wisdom of countless people, and they are even more important than our lives! ”

"But it's very embarrassing, a feeling that there is nowhere to use the strength, the vast majority of machines are idle, and the production lines are scattered."

Senior Brother Zhao nodded, "Alas, I think so too. If we reach our destination smoothly and obtain a lot of resources, we will have a place to use it......"

After the visit, Zhang Yuan already had an idea of the entire industrial system in his heart.

The two continued to get into the car, passing by the Astronomical Observatory, where some astronomers were making astronomical observations.

There are no lighthouses in the universe, and there are no satellite signals, so you can only determine your position by looking at the stars in the sky.

But the entire galaxy is not static, it is constantly moving and spinning. Astronautics is a millimeter away, and if the direction of motion is a few microseconds away, it may end up being tens of billions of kilometers longer. Therefore, it requires a lot of calculations and observations to make accurate judgments.

Zhang Yuan's heart moved, "According to the date, our spacecraft should be in the orbit of Mars, right?" ”

Zhao Qingfeng nodded, "Almost, it's been more than a month, want to go in and have a look?" ”

Zhang Yuan had to sigh at the greatness of the "Earth Era", staying inside, he couldn't feel that he was in the universe at all.

There's always a ...... The wonderful illusion that I still live on earth.

This is actually a good thing, if you are constantly reminding yourself that you are in the universe, there is mortal danger around you, and the psychological pressure will be greatly amplified. When the time comes, depression will spread on a large scale, and it will be troublesome.

At the position in the orbit of Mars, the delay in communication with Earth is about 4 minutes.

It takes 4 minutes for the message to reach the Earth, and it takes 4 minutes for the Earth to reply to the message, so the time for a message exchange is 8 minutes.

When Zhang Yuan communicates with the earth, he usually uses the form of short videos.

"Let's go to the observatory and have a look."

Zhang Yuan cautiously flew to the observatory.

A bright starry sky is overhead. Here, you can have the most intimate contact with the majestic universe.

It's quiet inside the observatory, or rather, it's quiet everywhere in the gravity-free zone. It's just that sometimes there is a rustling sound in the headphones.

Under the illumination of the eternal starlight, witnessing the splendor of the entire galaxy produces a different sense of tranquility.

This kind of tranquility can immerse the restless mind.

If you look at the Earth with the naked eye, you will find that the Earth has become a very ordinary small star, and the sunlight reflected at a certain angle takes on a pale blue color.

In a way, it's a bit like Sirius.

Mars, on the other hand, is about 60 million kilometers away from the spacecraft and appears slightly larger than Earth, reflecting a yellowish orange color of sunlight.

Through the astronomical telescope, you can even see the space city "Mars 3" that stays above Mars!

"Mars 3", once the prototype of the "Earth Age" spacecraft, is a mobile space city.

It's only one-third the size of the Earth Age, but it's enough for the technicians inside.

The future space city will be designed according to the concept of "mobility".

If you zoom in on the entire solar system, you will find that the planet Mars is too ordinary and does not have much development value for the current human race.

From the perspective of the space industry, Mars is not as good as the Moon. The Moon is close enough to the Earth for easy transportation, low gravity, no atmosphere, and abundant resources.

In terms of available resources, Mars is not as good as Europa and Titan.

In the vicinity of Europa and Titan, there are large gaseous planets with endless warehouses of natural nuclear fuel.

There are countless hydrocarbons on Titan, and if the planet can be mined, it is equivalent to having a lot of oil. The massive amount of easily mined organic matter is still quite valuable.