Biandu has not rained for half a month from the beginning of April to now, the fields have cracked through drought, the weather is even hotter, and the people are always looking forward to a hearty heavy rain to come, so that the downpour will drive away the heat.

Outside the Dragon King Temple and the Water God Temple, hundreds of people bow their heads to worship, and the case is the offering of incense offerings, and the green smoke is endless.

In the expectation of the people, it rained in Biandu, it was very hearty, and this time it was two days and two nights, so that the water level of the Bianhe River soared, and the river water in some places outside the city of Biandu had been extended from the river, and some low-lying places had been backfilled, and the Ministry of Industry and Kaifeng Prefecture sent people to check the Yellow River embankment in the north of the city day and night, so as to avoid a major disaster as in the first year of Xuanhe.

Heavy rain for several days, due to the rise of the water level and the dampness of the ground, the earthworms that inhabit the ground all drill out along the cracks of the roof tiles, the big ones are about five inches long, and the small ones are more than an inch, crawling everywhere, in addition to all kinds of insects and ants, the whole house is even to the point where people have nowhere to put their feet.

Although earthworms are harmless to people, they are also panicked everywhere, and Lotte has no choice but to stand under the porch in front of the door.

Looking at the rain dripping from the sky in the courtyard, Lotte couldn't help but shake his head: Biandu is really not suitable for the capital, not only there are no mountains and passes around, but the north of the city is the Yellow River, which is the only rich and harmful.

When Lotte was in a daze in the courtyard, the shaku seven line dressed in a coat came and said: "Hou Ye, the little one has ordered someone to go to the Knowledge College and the other courtyard to check, and the Hou Ye chose the location in the high terrain, and there was no inappropriate place after two days of heavy rain. ”

"It's okay!" Lotte nodded.

While speaking, Mei Hong came to the study with a paper umbrella in the rain and shallow feet, and said, "Master Hou, Your Highness asked the slave maid to invite Master Hou to the inner hall for dinner!" ”

Lotte nodded, but it was good: "Why is it your turn to call me today, those servants?" ”

It stands to reason that calling oneself to eat only needs to be done by a servant girl, how can Mei Hong, who is a concubine, come.

Mei Hong was as fierce as before: "It has rained heavily for a few days, and the house is full of insects and ants, and the maidservants are timid and tight, so they have to take a trip with the concubine!" ”

Shaking her head helplessly, Mei Hong came to cover herself with Lotte with an umbrella, but Lotte caught a glimpse of Mei Hong's body with a little mud, and wondered: "Mei Hong, our yard is paved with bluestone and blue bricks, where did you come from?" ”

Mei Hong said with a smile: "In the past, Brother Zhao and Brother Yu were naughty, and in order to catch crickets, they uncovered a lot of green bricks in the back garden path. ”

"It's really three days without a house and a tile!" Lotte is helpless.

Mei Hong continued: "Not only the back garden, these two naughty bags can't reveal the floor tiles in order to catch crickets, and now they are still young, how can they say, except that the floor tiles at home have been replaced with blue-striped stones!" ”

Looking at the earthworms and ants crawling around, I was extremely helpless, and suddenly I had a flash of inspiration, and I thought of a building material in later generations, cement.

Although cement in the first industrial revolution does not have the role of the steam engine, but can not ignore its value, although cement this kind of thing appeared in the ancient Greek era, but the emergence of modern cement in later generations is a landmark invention, cement this building material looks inconspicuous, the price is also very low, but fundamentally changed the way of human construction, to promote the development of human Ming.

"Husband, what's on your mind?"

Seeing that Lotte was absent-minded while eating, Emperor Maud said very anxiously. Emperor Mao thought that his father and brother had taken 13 million pieces of silver from his husband, and his husband was angry because of this, for fear that Lotte would have something to think about.

"Husband, I'm thinking about something that can change this era!" Lotte said absentmindedly.

Lotte's seemingly unconcerned words shocked the frightened Emperor Maode, and her voice was full of crying: "Husband, if there is anything unhappy in your heart, tell me quickly, I will intercede with my father, and Husband should not be stuffy in his heart and hold back his illness......"

"Say what?" Maude Diji's words made Lotte wake up from his contemplation, and he said in surprise.

All the concubines of the family set their eyes on Lotte and Emperor Maode, although the concubines had heard about this matter, but because of their status, they were not qualified to intervene at all.

Emperor Maode said very sincerely: "Husband, when the imperial court returns from this expedition, I will go and ask my father to return the thirteen million yuan to the ticket number!" ”

"I didn't expect His Majesty and the court to pay back this money!" Lotte spoke with a slight sneer, and waved his hand again after speaking: "When the money is gone, we can earn it again, and my husband is now thinking about making a living!" ”

"I really don't want to go into politics anymore?" I have known Lotte for the longest time, and I know Lotte very well about Lotte's character, and Aunt Ying is very surprised that her husband, an official fan, is not lost.

Lotte waved his hand and said: "Li Tang has a Niu Li party dispute, this dynasty has changed the law since Xining, and there is a new and old party dispute, master, I don't belong to the new party or the old party, which of the two factions looks at the old party and I don't like it, it's better to be a rich man at home!" ”

After eating, Lotte looked for Tu Si and asked, "Tu Si, do you know where there is a lime kiln in Biandu?" ”

Tu Si is now specially collecting intelligence for Lotte, and he is even more critical of the terrain and environment around Biandu, and hurriedly replied: "Back to the Hou Ye, as far as the little one knows, there are more than a dozen large and small lime kilns around Biandu from the east of the city to the west of the city."

Lotte then asked, "Do you know how this lime is fired?" ”

"The villain knows something, it is said that lime is laid in layers with bluestone and wood, and it can be obtained by calcining it for a week!" Tu Si replied, and at the same time his heart was very good, and he was puzzled: "Master Hou, what do you mean by asking lime?" ”

Tu Si is close to his body and mind, and Lotte naturally will not hide it: "Ben Hou thought of a thing called cement, although this thing does not seem to be as important to the imperial court as steel and grain on the surface, but it is not inferior to both in strategic significance, if this kind of thing is really burned out, the city of my Great Song Dynasty will be as solid as a rock." ”

In the image of Lotte, the lime kiln can be calcined lime, as long as the formula of cement is mastered, calcining cement is not a problem, although limited to the level of science and technology, can only reach the quality level of the lowest cement in later generations, but it is better than nothing, not to mention that the cost of cement production is extremely low, only with cement, the Great Song Dynasty can build a more solid city,

The raw materials for making cement are very simple, and even everywhere, nothing more than bluestone, clay and gypsum, which are cheap and tight, but it is difficult to fire in the firing process.

In ancient times, the level of science and technology was low, and it was just an artillery, because the quality of pig iron was not up to standard, Lotte had to use expensive copper to make copper cannons; A steam engine, because the iron quality can not meet the requirements, all the parts of the machine are made by artificial, and the wrought iron is calcined by artificial carbonization quenching by soil method, which is to use the waterwheel calciner to calcine the parts, which also requires a lot of manpower, and the hard work can be imagined.

To put it clearly, the basic science and technology at this time are low, and it is difficult to meet the requirements of the design.

In the case of calcining cement, Lotte also faced the same problem, although he knew the basic formula for making cement, but the process required in the process had to be explored little by little in practice, and it was by no means something that could be made by touching the lips with lips.

With Lotte for many years, I have seen Lotte create one trace after another, and I admire the artillery and steam engine ships made by Lotte.

I heard Lotte say that this kind of cement only needs to mix sand and water, and after thorough solidification, not only the lime should be strong, but even the real stone is not inferior in hardness, and it can be used as a binder to bond stones, bricks and tiles together, so that they are close to sticking together forever.

Out of blind worship for Lotte, Tu Si hurriedly said: "Master Hou, the little one will go and invite a skilled lime kiln master to try to burn cement!" ”

"Wait!" Calling Tu Si, Lotte said slowly: "The technology of firing cement is the same as the technology of making artillery, which requires strict secrecy, not only can not be known by the imperial court, but also cannot be allowed to be sent by the Khitan, Jurchen, Goryeo, and Dongying. ”

"Little one remembered!" Tu Si hurriedly responded. After being by Lotte's side for a long time, he has already developed a keen insight, and Lotte only introduced it slightly, and Tu Si knew the importance of cement.

Just as he was about to walk out and do things according to Lotte's instructions, Tu Si retreated back and said: "According to Hou Ye's orders, all the ticket numbers in the south of the Great Song Dynasty have been passed by Hou Ye's flying pigeons, and now they are raising money to send people to escort them from land and water to Biandu!" ”

Lotte nodded, silent.

Seeing that Lotte was silent, Tu Si's face swelled with resentment: "Hou Ye, there are one and two, if you are used to the emperor Lao Tzu Hu Lai, won't the court treat Hou Ye as a fat sheep in the future?" If you don't have money, take a knife to Hou Ye's body and cut it? ”

"Under the eaves of people, I have to bow my head!" Lotte sighed.

Tu Si continued to say angrily: "Hou Ye, you destroy Xixia Square, everyone in the world is looking at it, this time from the southeast back to the dynasty, it stands to reason that you have kept the Jiangshan Sheji of the Great Song Dynasty, and you should be named the grandfather, the Son of Heaven not only did not seal the Hou Ye, but also blackmailed the Hou Ye, don't say that it is small, that is, the shopkeepers and the people in the ticket number are also unhappy for the Hou Ye!" ”

Seeing that Tu Si was getting more and more excited, Lotte waved his hand and said, "Don't say it, go and do what I tell you!" ”

"Master Hou......" Seeing Lotte's attitude of ignoring him, Tu Si was even more anxious.

"By the way, there's one more thing!" Lotte ignored Tu Si's attitude and continued to instruct: "In addition to looking for craftsmen who burn lime, you should send some people to find some craftsmen who make transparent sulfur glass, and Ben Hou wants these sulfur glass craftsmen to be useful." ”

Seeing that Lotte had been avoiding mentioning this matter, Tu Si sighed and went out to do things as Lotte had ordered.

In addition to the scientific books of ancient Greek scientists, another goal of Lotte is to focus on the process of making glass, and the books of Archimedes can be easily obtained in the earth, but the process of making glass is strictly confidential, and Lotte does not have much confidence in obtaining the glass manufacturing process.

Although Huaxia does not know how to make Western-style glass, Huaxia has the process of manufacturing glass and lead barium glass, and the glass process of Dihai may not be able to get it, and Huaxia glass and lead barium glass can not be used as a backup.

As a simple generator with verification technology, Rakuten's next goal is to make household appliances such as electric lights, and glass is an indispensable raw material for light bulbs.

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