If the audience was surprised to see the renderings and felt that the new space station was huge, then when Chief Yang finished introducing them, they would be shocked and speechless.

If adding a parking module is normal, then the two "big wheels" behind begin to run wildly at a fork in the road.

Some viewers guessed the purpose of the "big wheel", but after Chief Engineer Yang personally confirmed that that was another thing.

Simulating gravity, this is really something in the field of science fiction.

Whether it is the "far future" anti-gravity simulated gravity or the "near future" rotation simulated gravity, they are things that can only be seen in science fiction works.

Although there are similar research plans in the history of aerospace, because they have never been implemented and have been moved by science fiction works as material settings, then it is science fiction!

And today, science fiction is about to come true!

Even if it is not 100% of the Earth's gravity, it is only about the same as the gravity of Mars, but it is almost the same.

This is a good start, isn't it?

And the "industrial zone" behind them will surprise the audience even more.

Human manufacturing industry is developing rapidly, but due to the natural physical environment of the earth, many materials and manufacturing methods have encountered bottlenecks.

However, in the space environment, there are many materials that produce and manufacture methods that bring new breakthroughs.

Humans use zero gravity and high vacuum space environment to produce high-quality large single crystals that are urgently needed on the earth, high-strength composite materials for rockets and aerospace vehicles, advanced glass for optical instruments, high-temperature resistant metal materials for atomic reactors and high-purity drugs.

Such as interferon.

More than 20 years ago, the Free Federation used genetic engineering technology to produce biological cells, and the purity was very low because it was necessary to separate it from a mixture of more than 100 other biological cell products, and the operation was very careful and the speed was very slow.

Otherwise the mixture in the solution will easily rise or sink.

This kind of problem will not occur in space because there is no gravity.

Scientists believe that the purity of interferons made in space is 100 to 400 times that made on Earth.

Space experiments also show that single crystals produced on orbits are 10 times larger than those on the ground!

Under zero gravity, the crystal lattice is arranged neatly and the crystal growth is even, greatly improving the perfection of the crystal. Using container-free suspension growth can also avoid container contamination, and high-purity crystals can be obtained.

With this large, high-quality single crystal, a subsystem, such as a storage system, can be implemented on a single chip crystal.

Or a computer made into a monolithic crystal is conducive to improving the reliability, storage capacity and computing speed of the computer.

Moreover, large high-quality single crystals are used in solid-state lasers, which can greatly increase power.

There is also a special optical fiber called "ultrapure fluoride". This material has higher infrared transmission than silicon and is mainly used in high-end lasers, fiber optic cables, medical products and other fields.

In the environment of gravity of the earth, the traditional method of producing this material is melted at high temperature and allowed to stretch and mold during dripping from a high place.

But the problem is that the densities of different components contained in this material are different, so the material will form microcrystals during cooling, which will affect the application of the material in fields such as communications.

Moreover, the material is relatively "fragile", the effect is not satisfactory, and the price is very expensive, and it has not been put into the commercial market yet.

But it is different to manufacture in space. In the vast space of space, larger glass blocks can be used, and optical fibers that can easily be pulled out thousands of meters long.

On the other hand, without the influence of gravity, precipitation or crystallization will no longer appear easily in the optical fiber.

Judging from the finished product, space-made optical fibers are longer and have clearer interiors, and communication quality and effect will be greatly improved.

This is just a material advantage. By combining the advantages of various material manufacturing, humans can directly produce spacecraft in space.

Take satellites for example.

Currently, all spacecraft are manufactured on Earth, then installed in the fairings at the head of the rocket, and finally launched into space orbit.

This makes the satellite's volume and structure greatly limited to the narrow space of the rocket head.

In order to stuff the satellite into the cylinder space with a diameter of about 2 to 5 meters on the head of the rocket, most of the existing satellites have been made into a structural design of "fat box + folded wings".

However, this single structure of "fat box + folded wings" is not the best geometric structure for satellite missions in many cases.

For example, the antennas used by some remote sensing and communication satellites often require huge space extensions.

This huge mechanical structure must be folded on the narrow rocket head, which will technically cause great inconvenience.

In fact, space engineers have designed many imaginative and more powerful geometric satellites, which are "deadly" because they cannot be folded into the rocket.

Production of satellites in the "space factory" can free the satellite's geometric structure from the shackles of launch.

Due to the empty microgravity environment of space orbit, the structure of the satellite can theoretically be arbitrary.

Even a "space factory" can slowly build a spacecraft in space like an ants building a nest, which is much larger and more complex than itself, which will greatly liberate the design imagination of space engineers.

Then it is to make it possible to make lower reliability requirements for satellite structures.

The working environment of satellites in space is vacuum + microgravity, which means that different parts will not be squeezed due to gravity.

In this sense alone, the mechanical structure of a satellite does not need to be re-created so "solid".

Since satellites have to withstand 10 to 20 times the gravity acceleration impact during rocket launch, in order to withstand this powerful impact, the satellite must be particularly "solid" from the whole to the parts.

Therefore, until today, whether it is the overall structure of the satellite or the components above, it must undergo the most rigorous mechanical shock and vibration tests before launching to ensure that the overall structure can be intact in a harsh impact + vibration environment as harsh as a "car accident".

This extremely high requirement for reliability makes the parts used by satellites often have to be selected and very expensive, which increases the overall cost.

At the same time, many structural schemes with obvious performance advantages but not very strong can not be finally adopted.

Making satellites directly in space can avoid these troubles.

For example, polymer powder can be packaged and launched into space, and then the satellite's mechanical structural framework can be printed out using 3D printing equipment in space.

It can also be modularly designed to provide agile satellite repair capabilities.

The so-called modular design concept is to split the satellite into several standardized functional modules, just like the camera module, battery module, antenna module, etc. in a mobile phone.

Each module can be produced independently and can be assembled into a complete satellite at any time like building blocks.

A very huge benefit of doing this is that it can repair satellites in space quickly and at low cost.

Many satellites today often cause overall scrapping due to partial minor problems such as power module loss or antenna damage.

If replacement functional modules can be quickly and independently produced in space, and then the space maintenance robot replaces the brand new module, it can greatly increase the service life of the satellite in space, increase the maintenance speed, and reduce the maintenance cost of the entire satellite system.

And you don’t have to worry about manufacturing resources. Not to mention that the scrapped space garbage can be recycled, space itself contains extremely rich resources.

According to the current discovery of the International Science and Technology Scientific Group, there are several valuable asteroids passing by the surrounding earth, which can be called "flying treasure chests".

There is a m-type asteroid. Most of the constituent substances of this star are metals, and its main components are iron and nickel, which are all widely used metals on the earth.

Then there is an asteroid called uw-158, whose basic composition is gold, worth trillions of federal coins.

There is also a huge cosmic diamond called BPM-37093, which is the crystallization of a white dwarf. It is basically a four-kilometer-long diamond.

The most powerful one is a planet called 16-Psyche by scientists, which contains a large amount of gold and platinum. Its current market value is 100,000 trillion federal coins.

Of course, these things are too big and cannot be chewed by the second phase space station, but at least the second phase space station has allowed many people to see the future.

"Good guy, this space station is so awesome!"

"This space station is too big. The individual cabins in the first phase are larger than the individual cabins of the International Space Station. Now there is a single cabin with a diameter of 18 meters, which is too violent!"

"The rotary simulation gravity cabin is powerful, and humans have finally developed the technology to simulate gravity."

"I was shocked, it turns out that the space station can do so many things!"

"Then is this still a space station? It feels like a space city?"

"It's still a little too early to say that space cities are, so where is the space city with a scale of 300 meters?"

"But in terms of configuration, the gap with the previous space station is too big."

"In fact, it's about the same. The second phase of the space station is still mainly based on scientific research and experiments. Even the 'industrial zone' is not relaxed, and most of them are still tested."

"If you don't want to talk about the city, you'll just say that the length is 300 meters, the 'wingspan' of solar panels is 400 meters, and the thick cabin has a mass of more than 1,500 tons. The internal pressurization space has reached an astonishing 50,000 cubic meters. Is the second phase of the project big?"

"Big! Too big!"

"The pressurized space of the International Space Station is less than 1,000 cubic meters. Do you tell me this 50,000 cubic meters?"

"Yes, although it is only 300 meters, it cannot withstand the 110 meters of the International Space Station's moisture is too large. In fact, if you use the solar array and the large truss, the main body of the International Space Station's pressurized chamber is not too large."

"Well, the second phase of Fanxing Space Station is different. They have so many huge cabins with a diameter of more than ten meters and a rotating cabin. It is worth a lot of space."

“If it is built, it is definitely the largest space station in the world!”

"This is not a space station, this is a space wonder!"

"Humans really like to build wonders!"

People were discussing these things in shock, and then they saw Chief Executive Yang step down and change Li Wei to come up.

The transition between the old and the young also made netizens' minds so shocked and stupid.

Chief Professor Yang has already said that the second phase of the Fanxing Space Station was jointly conducted by the Space Administration and the Practical Science and Technology Group. The space station has conducted preliminary experiments on "space manufacturing", such as 3D printing, and space maintenance and assembly are often used by astronauts. The current "industrial zone" has only been expanded, and it is estimated that there are many space agencies' technology and experience.

But I haven't heard of the Space Administration's research on rotary simulation cabins. It seems that all of them are practical technology.

There are also super rockets, which are also practical technology.

However, Chief Secretary Yang has already said that Li Wei will not come up to talk about this, right?

Probably not.

Because judging by the press conferences that Li Rui had held before, he was always short and would not say anything repetitive. This time... he probably won't.
To be continued...