Throne of Vientiane Civilization

Zhou Xu had to admit that he didn't know much about volcanoes.

Although he was a modern man, he was not a network confrontation master like Wang Pengfei, who would check everything in order to confront people.

Who would have nothing to do to study this?

He basically only knew what he was interested in, and volcanoes were obviously not within his scope of interest.

At this time, Zhang Xuemei said this, and Zhou Xu's thoughts also changed obviously.

If the loss that the volcanic eruption might bring to him was compared to the number fifty, then he only needed to use this piece of land to create a value of one hundred or even two hundred.

In this way, even if the volcano erupted, from the perspective of the value of the benefits obtained, he suffered a loss of fifty, but still had fifty or even one hundred and fifty benefits, and he still made money, which was considered to be more beneficial than harmful.

Zhou Xu has always been a decisive person, even if he was entangled, he would not be entangled for too long.

Now, after listening to Zhang Xuemei's words and figuring out the benefits that the volcano could bring to him, he opened up his mind all of a sudden.

[Volcanic ash can make the soil fertile and make the land here suitable for farming, which is just right. ]

[After all, this is an island. If you always need to transport food from the mainland, it will be a hassle even without considering the transportation cost. It is undoubtedly the simplest way to build a farm on the island and cultivate farmland, which is also conducive to the future development of this island. ]

[And that geothermal energy, Qin Fen should understand it, right? Go back and ask. ]

As Zhang Xuemei said before, a dormant volcano like this may not erupt once in hundreds of years.

Although the potential risks cannot be ignored, sometimes there are too many entanglements and hesitations, which will undoubtedly affect development.

Imagine that in hundreds of years, the value of this land for you may have long exceeded the loss caused by the volcanic eruption.

As his thoughts flew, Zhou Xu's eyes fell on Zhang Xuemei again.

"You just mentioned sulfur, which should be one of the main materials for making gunpowder, right?"

As one of the four great inventions of their China, Zhou Xu still knows a little about gunpowder.

Zhang Xuemei nodded directly after hearing this.

"Yes, the main materials of early gunpowder are sulfur, potassium nitrate and charcoal."

After that, Zhou Xu didn't need to ask further questions, Zhang Xuemei continued to talk on her own.

"Charcoal is nothing to say, if you want to get potassium nitrate relatively easily, you should be able to find it in the toilet."

"..."

Obviously, this answer was a bit beyond Zhou Xu's expectations, and he even wondered if Zhang Xuemei was joking with him.

In addition to looking for shit in the toilet, can you also find potassium nitrate?

Zhang Xuemei probably sensed Zhou Xu's doubts, so she explained.

"After the organic matter in human urine undergoes chemical reactions, it will produce potassium nitrate or nitrate."

At this point, Zhang Xuemei paused.

"If you want to develop gunpowder, although sulfur has not been found yet, potassium nitrate can be collected first."

Zhou Xu listened and nodded.

"I will give instructions on this matter later."

Although the fact that the resource output point is actually in the toilet made him feel a little complicated.

But when he thought that he didn't need to collect these things himself, he was fine.

It took him a lot of time to come here, so Zhou Xu naturally didn't plan to stay here for a few days and leave.

This time he came here in person, on the one hand to meet Tanaka Yotaro, the time traveler, and on the other hand to use his "Peeping Eyes" to conduct a comprehensive exploration of this island.

This will also facilitate him to make a plan for the subsequent development of this island.

At this stage, judging from the scale of this island, Zhou Xu feels that he should not be able to go back this year.

At this moment, he has just finished a long journey, and he is not in a hurry for a while, so he plans to rest for two days first.

In comparison, Zhang Xuemei started her work here directly after resting for a night.

The first thing is to go to the volcano first and make a thorough confirmation.

It is not difficult for them to go to the volcano, just take a hot air balloon.

Tanaka Yotaro had already built a hot air balloon before, but at that time he was full of thoughts about returning to the mainland and taking back the capital, and he probably didn't think about this at all.

Compared with the simple hot air balloons made here, the hot air balloon manufacturing technology here in Da Zhou is undoubtedly much more advanced, and the overall quality is obviously better.

The hot air balloon took off quickly, and during the period, the two hot air balloon operators also skillfully blessed the hot air balloon with mantras to make it fly faster and more stable in the air.

The hot air balloons of their Da Zhou have a very high mobility efficiency.

As we all know, the speed of a hot air balloon depends largely on the wind. Simply put, the stronger the wind, the faster the hot air balloon moves.

In high-altitude areas, the higher the position, the stronger the crosswind.

From this point of view, as long as it is raised to a sufficient height, the speed of the hot air balloon can increase rapidly.

However, the risk will also increase significantly.

But the standard mantra of their Da Zhou hot air balloon operators can allow the hot air balloon to fly stably and at high speed in such dangerous strong winds. This is the secret of their high mobility efficiency.

Ordinary hot air balloon operators would not dare to do this. Only those who possess the true words would dare to do this.

This was not the first time Zhang Xuemei had taken a hot air balloon, so she was very calm at the moment.

Maintaining high-speed flight, they soon arrived above the mountain.

"No, we can't get any closer!"

The experienced hot air balloon operator soon noticed that the airflow in this area was not right, and could also feel the obvious heat wave, which forced them to quickly control the hot air balloon to distance themselves.

During this process, Zhang Xuemei, who was about to stick half of her head out of the basket, had already activated the 'Eye of Insight'. After a short close observation, she was basically sure that this was a dormant volcano!

However, Zhang Xuemei obviously did not intend to go home just like that.

This time, in addition to making a final confirmation of the volcano, she had other work to do when she took the hot air balloon out.

In fact, confirming the volcano was just a side job.

Now, with the blessing of the 'Eye of Insight' and the high-altitude vision provided by the hot air balloon, Zhang Xuemei also quickly swept the area.

At the same time, on the island village side...

Zhou Xu said he was taking a break, but he did not intend to let himself be idle.

After all, he is essentially a person who can't sit still.

On a new day, after a good sleep, Zhou Xu asked Bai Tu to find a relatively spacious open space for him.

Needless to say, he planned to conduct a round of mantra tests to try out what kind of effect the two new mantra characters he obtained yesterday could show after combining them with the original mantras he had.