In Jinmai City, looking at the prosperity of the people of Jinmai City, Qian Rujun will feel anxious about the backward places outside Jinmai City.

When the explosives began to be used, Qian Rujun not only knocked down the rocks, but also broke them into pieces, so that people could use them as bricks to build houses to live in.

It is pitiful to say that the houses where the Han people live often have only one single room, and this single room is made of mud or woven from thatch.

It can be made of mud, it is already this home, and the family should be relatively solid, and you can spend a lot of time building a house.

And made of bamboo or thatch, often easy to breathe, although usually bright vision, but once it rains, they have to replace the roof, and when it rains, it is easy, it rains heavily outside, and it rains lightly inside, in this situation, perhaps they should be grateful that there is very little furniture at home, and they can often move to a place that will not be exposed to the rain. Otherwise, the family's belongings will be wet and discarded by heavy rain, and they will not have so much money to replace them all the time.

In fact, the furniture in their home is often not a craftsman, carefully made, but casually find a wood nearby, made by himself, if his handicraft is good, then the furniture at home can be used for a long time, if his craftsmanship is not good, then the family must change the belongings once in three days.

At this time, the peasants did not have so much leisure time, and often everything had to be done in a hurry.

If you want to make furniture, then it will take more time, and you will have less work on the field, and it is likely that the harvest will be bad, and the harvest will not be good, and the people who come to collect taxes may think that you are lazy and beat you up, because it will reduce its taxes.

So in the end, the poor and unskilled people had to live in four walls, and everything was taken from nature.

For example, stones are used for tables and chairs, and if it is something for cooking, it may be made of leaves, and it can be cooked by grilling it in the soil.

In this day and age, the poverty of life is only something you can't imagine, not something you actually don't have.

Fortunately, everyone is poor, so we can help each other a little, at least so that people don't starve to death.

Like Qian Rujun, so many people went to build Shuizhen early, and gave everyone a full meal, and the full meal was nutritious and delicious, for them, this is simply too rare, so they are very serious when they go to work, firstly, in order to repay these meals, and secondly, because this project is also for their own future.

The practical method of building a house with stones was not invented by Qian Rujun, and many places used local materials to build houses with stones. If the place is downstream and there are a lot of small stones, people will not let go of them.

But in order to take the stones to build a house, there is a prerequisite that the stones can be made of the right size, at least the same size, so that they can be placed in the earth and stones to increase the hardness of the wall, and even to be able to stick it together with a sticky made of glutinous rice.

Of course, at this time, many people can't afford to use glutinous rice, so they can only use some soil and stones, and they find a way to just get together, because in this era, it is a problem to eat enough to treat glutinous rice as an age, which is too luxurious and wasteful, so the most appropriate way is to use soil to ram the house.

In the Shuizhen project led by Qian Rujun, the adhesive used by people is not made of glutinous rice and other materials, such materials, in fact, ordinary people are reluctant, but the effect is very good, Qian Rujun uses cement, the stone is sealed in cement, their house will be able to live for a longer time, even hundreds of years, it is not a big problem, because the houses at this time are bungalows, not buildings, and the stones will not be weathered and damaged, as long as the cement does not fall into the house of this place, it is not a problem to live for a hundred years, or even two or three hundred years。

Qian Rujun is still a little regretful, because cement is not as easy to use as traditional adhesives after all, if it is composed of traditional adhesives. Then this house is guaranteed to live for more than a thousand years without problems.

It's just that more than 1,000 years from now, what will happen to the Great Han? Will the years run as fast as the twentieth and nineteenth centuries?

Or is time flowing forever, like China's more than 2,000 years of history, nothing has changed much. The lives of the people, in particular, seem to be repeating themselves endlessly. There is no chance of turning over.

Qian Rujun has accelerated the pace of people, will people change another emperor or stagnate after changing a few emperors, or will they continue to follow the teachings of their predecessors, and they don't know how to improve themselves?

China is a place that pays attention to ancestors, and pays great attention to tradition. The Son does not speak of the Father. So the past, whether it is right or wrong, will be repeated. Even those who want to change in the future must first overturn people's concepts before they can start to change.

But to overturn the ideas of his predecessors, he used all his strength, and when he wanted to change, he no longer had the strength to change.

"Princess, they should have arrived, right?" The students of Xuetang Island knew when Qian Rujun was going to return to Chang'an, so they specially reminded Qian Rujun.

Qian Rujun is at the Shuizhen construction site, and there have been some signs of lingering recently.

It seems that the explosion in this has attracted all Qian Rujun's attention.

In fact, Qian Rujun was very worried that the students of Xuetang Island or these workers in the boiling water town had an accident when using explosives.

Qian Rujun knew that even if people were already very familiar with explosives, they still couldn't let the accidents of explosives stop.

And the students in the academy, each of them is her baby, if someone really has an accident, Qian Rujun may not be able to stand it.

But it was impossible for the people to master the explosives at first, although sooner or later they had to master the skill.

Otherwise, the designer of the water tank would have had to be at the scene of the explosives all the time.

At this time, Qian Rujun has a distinction between importance and importance, in her heart, the students of Xuetang Island are much more important than the ordinary people, he can find a way to let the ordinary people live a good life, but the students of Xuetang Island have accompanied Qian Rujun and spent countless days, but they are already the indispensable people that Qian Rujun feels.

Normally, due to the large number of students on Xuetang Island, Qian Rujun didn't think anyone was particularly important, but when their lives were in unknown danger, Qian Rujun began to feel worried.

Qian Rujun waited at the scene for the students of Xuetang Island to hand over the work to Minfu, and after Minfu safely lit the explosives, he was relieved to hand over the explosives to the students of Xuetang, which was their monthly supply.

"I have explained the storage method of explosives, and I must keep it away from Mars and high temperatures, I hope you will be cautious about my confession, otherwise I will not be responsible for any death. I hope that your reduced time is not in exchange for human lives. During this time, I may have to leave, stay in Chang'an for a while, you work well on the construction site, it is very dark at night, you can't see clearly, and there are no street lights, so you try to rest as much as possible, take care of your spirits, and start work. ”

Qian Rujun became very verbose at this time, although this place was already the last place where Qian Rujun stayed, but Qian Rujun still couldn't help but ramble again.

"Princess, we will definitely be very cautious, and we will definitely implement your explanation. ”

For Qian Rujun's mother-in-law and mother, the students of Xuetang Island couldn't cry or laugh, but they still respected Qian Rujun very much, and whether they would be more serious, it is estimated that they would not, because they were already very serious.

They have always avoided countless dangers with seriousness, otherwise Qian Rujun wouldn't have worried when they went to the battlefield?

On the contrary, he was particularly worried about the use of explosives that they could control, and it was estimated that Qian Rujun was affected by several large explosions in his memory.

But none of the people who used explosives in those explosions were the students of Xuetang Island.

But the students of Xuetang Island didn't dare to guarantee that they would never be careless, so they had to nod seriously and listen carefully to Qian Rujun's explanation.

Qian Rujun is also aware of her verbosity, and the so-called concern is chaotic, which is probably what she is talking about now.

She stuck out her tongue and said a little playfully, "Am I too verbose?"

How dare the students of Xuetang Island admit it, they hurriedly shook their heads like rattles and said, "Don't be verbose, don't be verbose, the princess cares about us." We are very grateful for the princess's care. ”

"I don't care what you think in your hearts, I'm going to leave this place for the time being and go to Chang'an, for a while, it is estimated that I will be locked in Chang'an by the emperor.

With this incident with the Lancers, it is estimated that my father will find that my use is too great, and a new mission has been given to me.

I think the place where the emperor wants to fight down must be more than just Nanyue, but there is no Bai Qing to cooperate with me in other places, if it really only relies on a thousand people, it will be troublesome. The forces of the magistrates in that land were not as good as those of the feudal states

。 The problem is that I am not familiar with the lords of other feudal countries, so I have no way to borrow troops. What's more, their army can't leave the feudal country casually, and if they can leave the feudal country, it will be chaotic.

However, when Feng Guo returned to Chang'an to report on his work, these troops could be carried to Chang'an, which was also the emperor's own trouble. ”

Since the initiator of this incident was not Emperor Liu Heng, Qian Rujun's title was a little different. The emperor does not refer to Liu Heng, but to Liu Bang.

"Princess, won't you bring a few more classmates back this time? There are so many things to do, if there are no classmates to help you, we won't feel at ease, how can the princess be busy?"

"Speaking of busy, you are busy every day and night, but you are much busier than me. ”

Qian Rujun felt that it seemed a bit ruthless to squeeze the students of Xuetang Island recently. There was an apologetic look in her voice.

However, the students of Xuetang Island get great satisfaction from all kinds of labor, not to mention Qian Rujun, in fact, they have enough leisure time for Xuetang Island students, and they can often sleep very comfortably in the space.

Qian Rujun is gone after all, and this time Qian Rujun especially did the thing he was most uncomfortable with.

She wanted to experience what it was like to ride in a carriage. And it is not an ordinary carriage, but the most luxurious ride in the Han Kingdom.

Qian Rujun has never had the experience of riding in a carriage for a long time. Therefore, Qian Rujun has not made up his mind about improving transportation. Until the time of Protestant Shuizhen, because of the need for transportation, the road had to be covered by the way, but Qian Rujun saw that the concept of the road included the students of Xuetang Island, and a dirt road was already a luxury road in their eyes.

At most, with gravel, gravel will appear, or because after a large amount of explosives are used, they use explosives to create a lot of gravel before they can pave it on the road, because they find that the road paved with gravel can barely be used after it rains.

This is also a kind of progress in their philosophy.

But it made Qian Rujun feel sad.

During their time on Gakudo Island, it was not that they had not learned the asphalt roads of the 21st century, but it was clear that the roads they had never seen before had been erased from their memories.

Even the Golden Wheat City is paved with nothing more than a concrete road.

As a result, for the students of Gakudo Island, they confirmed that the concrete road should be built in the city, and the road outside the city was basically a dirt road that was normal for them.

In fact, they are not wrong with their idea, because dirt roads do not interfere with water infiltration.

If there is an asphalt road and a cement road, there is no way for the water to seep into the ground, and if the asphalt road is paved too much, it will be a harm to the land.

But there is no way to make such a dirt road faster. The only way to do that is to lay a track on it.

But where there is no need for transportation, laying tracks can only form a waste.

At least Dahan needs a few middle and a few horizontal roads.

At least in North and Central China, there must be a road through Wu and Chu, Sichuan, and the coast.

At least when these roads are opened, they can also save most of the time when they are transferred to other places where the traffic is lagging behind.

As for the construction of the Grand Canal, in this era, it can be said to be extravagant and wasteful, and it is completely unnecessary, because under the canal, in the eyes of the Han people, it is a desolate and backward place.

As for supplementing these places with grain in Guanzhong, it is completely unnecessary, because the grain growth in these places is better than that in Guanzhong, and even there is a lot of grain growing in the wilderness, and the reason why the people here live poorly is because too many wild beasts hinder people's desire to live in peace.

Even if Qian Rujun knew how rich the productive forces were in the south, for the people of the Han Dynasty, it was unwilling for them to stay away from Chang'an and become truly backward. Just like in later generations, many people were willing to buy property in Shanghai and Beijing. For nothing else, they want to be the first people in this world.