Qiao Bushi calculated the amount of space required to change hydrogen from a solid state to a gas, and the value obtained was the volume of the container that needs to be made.

For example, the change between the two states of hydrogen is ten times the size. Then the container can only hold one-tenth of the solid hydrogen, so that the container will not burst. Zhen Fei lacks the kind of eternal cryopreservation environment and cannot control hydrogen in the solid-state stage forever.

In this way, a large number of containers are needed, and the containers need to be medium-level or higher magic weapons, and ordinary iron tools are torn in the stage of thermal expansion and cold contraction.

The samurai were not so active in the mining of hydrogen and oxygen, in their opinion, this kind of thing was useless and dangerous, so they were not very motivated, not as active as the pursuit of gold.

But Zhen Fei, who came out of the world, knew that such a pure material was a very rare thing, and human beings had not yet entered the stage of space development, so they did not have such conditions, and it would take a long time to develop to achieve it.

Now, he is clearly ahead of the humans on Earth, having been in the stars for two years and entering strange planets many times. Although Zhen Fei did not land on the planet in person, the warriors under his command all completed the landing under his command, and with empathy, Zhen Fei felt that his landing was the same.

The work inside the Imperial Flower Immortal Vessel was going well, and all the monks were producing round jar containers, and if it weren't for the large number of broken magic weapons obtained from the dead man, they wouldn't have wasted resources like this.

A month later, 100,000 jars of mid-level magic artifacts were produced, each of which could hold a million cubic meters of gas. But now it can only hold 100,000 cubic meters of solids to prevent the gas from expanding and damaging the magic vessel.

Oxygen solids emit a pale blue color, while hydrogen solids are transparent. The development of these resources went well, and the samurai easily filled the two gases into the jar and then wrote and marked it on the outside of the jar. Below the storage of hydrogen is a gold pedestal with a large specific gravity, that is to say, a pedestal is made with more than 100 tons of gold, and the jar containing hydrogen is fixed on the heavy gold pedestal, otherwise the hydrogen jar will fly, and so much gold will be used as a pedestal, as a falling object, I am afraid that only Zhen Fei can do it.

After completing this work, Zhen Fei breathed a sigh of relief.

It's not that the work of developing hydrogen and oxygen is too dangerous, but that the monks are not active, from the research of the tank to the specific development details and process, Zhen Fei is working hard and organizing people to carry it out. Even Zhao Yayun, Zi Su and others disdain to do this kind of thing that can't see returns.

This attitude is two completely different attitudes from the development of gold, when digging gold, everyone is brave to move forward, even Gao Gen and others are eager to try, that kind of high morale does not need Zhen Fei to worry about at all. Only then did he have the leisure to study what was left behind by the dead. In the end, the most valuable yellow essence was found. Yellow essence is the soul of gold.

Zhen Fei was busy with the development of hydrogen, and the monks accepted the instructions and did not actively follow Zhen Fei's instructions, and their inactive attitude also made Zhen Fei annoyed, but they couldn't vent it, and they were in a very uncomfortable mood.

The whole work was finally completed and the expected effect was achieved, and Zhen Fei ordered to move on.

In fact, everything in the starry sky is so mysterious, so eye-opening, many planets can not land on it, although these planets do not shine, but the temperature on the surface is still very high, some even reach tens of thousands of degrees, even if you throw steel into it, it will turn into a cloud of gas.

There are also planets that don't have a surface at all. The so-called surface of the earth is rock and dirt. But there is no atmosphere on these planets at all, only the atmosphere, the outermost layer is a thin atmosphere, gradually going down is a thick atmosphere, and at the most concentrated time, it is an atmosphere with the same water quality, and moving forward, it is a solid atmosphere, there is no solid land and a place suitable for human landing, such a planet is called an air mass star, which means that there is only an air mass, no earth and rocks.

Don't look at this kind of air mass star is inconspicuous, in fact, it is the most dangerous, the pressure of the air mass star is completely different from that of planets with rocky soil, and you need to measure the pressure and find a solution to enter, which is another scientific battle. Moreover, many gases are products of combustion and are toxic. For example, sulfides and carbonated gases, the fragile human life cannot withstand the destruction.

Sun Yingji is a person who has made breakthrough contributions to science, and like most scientists, she tends to have some crazy paranoia in her behavior. When it came to making storage jars, not the slightest clever suggestion was given. But she developed a new type of chariot.

This chariot looks quaint and elegant, with no wheels, only a boxy body, and the one-meter-high edge is carved with the appearance of more than a thousand beasts, all with teeth and claws, as if they are about to leap out to fight. The chariot appears condensed, silent, and solemn, giving people a sense of daunting.

Zhen Fei has no interest in this kind of war equipment that has been eliminated from the battlefield, it is now an era of missiles flying all over the sky, a war happens, maybe you don't need to see the other party's soldiers to fight, and when you can see the other party, the battle is basically over.

The chariot belongs to the product of the era of cold weapons and is too backward. Moreover, modern soldiers are highly educated, in line with the times, and pay attention to psychological factors and humanitarianism. Fighting face-to-face as in the past would put a lot of pressure on the soldiers.

Therefore, the development of weapons requires an increase in the distance of strikes, accuracy and power.

Zhen Fei looked at Sun Yingji's happy eyes coldly, and said very dissatisfied: "What are you doing with this chariot?" Is it sold as a fake antique? ”

"What fake antiques? As long as it is pulled by a divine beast, it can be used as a battleship, and the divine beast itself is lethal. Sun Yingji was very dissatisfied with Zhen Fei's attitude and screamed.

"Cut, where are you looking for the Divine Beast now? You are simply not doing your job, Lang is wasting your life, and you are extremely irresponsible to yourself. has become a husband and wife, Zhen Fei is no longer polite when he speaks, after all, he is a family, and he looks rusty when he is polite.

"Why am I not doing my job? Isn't it a mythical beast? It's on the planet next to it. Sun Yingji pointed to the sky and said.

"Is there really a divine beast?" Zhen Fei was very surprised. There are several divine beasts in his hands, and he once swallowed hundreds of mages in one bite, and he can also spray poisonous water and fire, and these attacks pose a great threat to the monks.

However, the number of divine beasts is very small. How could there still be?

Hearing that Sun Yingji wanted to catch the divine beast, the monks suddenly became excited, they liked this kind of divine beast, and thought that sitting on the body of a divine beast was more interesting and exciting than riding in a battleship.

Zhen Fei, who is used to seeing cars, trains, and planes on the earth, feels very uncomfortable. He likes things made with high technology, and most animals have lice, fleas and other unhygienic things. After all, mythical beasts are also wild animals.

A divine beast like a fox, it doesn't need to be fed when it is forgotten, it looks like a stone sculpture when it's quiet, and it's an avenger when it's fighting. At least Zhen Fei didn't see a divine beast that was better than the Fox. It's a pity that the chariot belongs to the artifact level, and there are many prisoners in it, and it is in the hands of the beloved little white wolf.

Otherwise, Zhen Fei really wanted to take out the fox and show them what a real divine beast was.

Since everyone is clamoring to catch the divine beast, Zhen Fei is not good at making a statement, and forcing him to disobey other people's suggestions will lose his friendship because of this. For most things, Zhen Fei still has to rely on these people to complete. This is called conformity, and the current opinion is the common opinion of everyone.

The planet with the Divine Beast was discovered a few days ago, and Zhen Fei didn't have any thoughts about the Divine Beast, so he shelved the news. Now to look back for that planet, you have to go back, and the planet with divine beasts is not on the channel, and you need to walk the starry sky road for about ten days.

It takes a lot of time to go back, but the last thing the monks care about is time, and being idle is also boring.

At this moment, a telegram was received in the telegraph room, with only one line on it: "I am Tao Li, are you a general?" ”

When Tao Li left, Zhen Fei had not yet become king.

This news made Zhen Fei overjoyed, and immediately called back: "I am in the starry sky, quickly tell your location, let's converge together, hard work." ”

After the news was sent, there was no reply, and the only explanation was that Tao Li and the others were far away from them, and after half an hour, they called back: "My location can only be explained by a point on the route, near the double cross." ”

The flaw on the starry sky navigation map is that it does not mark the names of the planets and stars along the road, I don't know if the person who made this map in the first place was lazy or wanted to keep secrets, only the route, not the names of the stars.

This caused trouble for Zhen Fei's initial voyage, and he didn't know where to go to find Earth.

The same is true of Tao Li, who cannot use the name of a specific planet to indicate where he is, but can only use a special route to indicate the place of the confluence.

On Earth, if you want to identify a buoy, you need to use the number of degrees east longitude and north latitude to illustrate the location, and modern navigation relies on satellites to show the location. This standard is a unified standard all over the world, and if the regulations of each country and region are different, it needs to be converted, which is very cumbersome.

No matter how much east longitude or north latitude is, it depends on the earth, that is, the surface of the earth.

In the starry sky that extends in all directions, the method of relying on calibration has not yet been unified, let alone the names of the planets.

The double cross coordinate is a very special position, like a "meter" word, at the intersection of a shipping route, which is the confluence point of eight shipping routes, and militarily speaking, it is also a very important strategic location.