"If there are three ships of gold, plus the expansion of the production of Fukuoka Steel Mill this year, the three will be repaired together, I don't know if it will be earth-shattering."

Cui Junsu's face couldn't help but feel a little more proud.

Liu Mu and Tang Jian laughed together.

Tang Jian asked Liu Mu: "How much labor can you come up with?" ”

"If you don't care about the development east of Fuso-Nara, Fuso Road alone can provide 400,000 laborers. plus 100,000 people, 200,000 Zhenla. Datang recruited another part of the country, a full number of millions of people. But ......"

Yanagi stopped when he said the word Dan.

Cui Junsu also understands that the transfer of millions of people, Emperor Yang of Sui once also recruited millions of laborers, and there were countless injuries.

"Let's fix one first." Cui Junsu didn't have the excitement just now.

Tang Jian asked Liu Mu: "What do you think of the Grand Canal of the former Sui?" ”

"Good river, a canal drives the economic development of the surrounding area, and the number of shops is just a façade. If there is data from various places in the Sui period, then the canal can increase the population, increase the development of handicrafts, increase agriculture, and promote cultural and academic exchanges. It's just that the former Sui conscription was too heavy and hurt the country. ”

After listening to Liu Mu, Tang Jian added: "There are two more points, it is a mistake to divert water from the Yellow River. Thirty states in Henan Province have to dredge the canal every year, and there is too much sediment. In addition, the supervisor who dug the canal did not understand water affairs. ”

"What canals do you dig without knowing how to dig water?"

Yanagi said he didn't understand.

Tang Jian explained: "Dujiangyan in the Qin period, Liufu Canal in the Han Dynasty, Shaobi and Rupi in the Jin Dynasty. The Grand Canal cannot be wrong, but the Grand Canal is too impatient and not carefully planned to weaken its ability to resist floods, especially in the Bianzhou area. ”

Cui Junsu sighed heavily: "If it weren't for the cement that reinforced the Baili River embankment last year, I'm afraid it would be ......."

Tang Jian continued: "I'm afraid that the tragedy of 100,000 homeless households in the fourth year of Wude will recur. ”

Liu Mu nodded: "I understand, what the two of you mean." The construction of railways should be planned cautiously, and we must not be blind. ”

"Well, that's it, especially when building bridges. The location of the bridge is very important, and the Ministry of Industry has a proposal to build two reservoirs in two sections of the river with very little sediment, and with the addition of steel and concrete, two dams can be built. This will ensure the control of water conservancy south of the Yellow River, and it will also protect the railway from flooding. ”

Amazing, Liu Mu admired it in his heart.

Who said that the ancients were worse than the modern people, and the ancients also had people who really understood water conservancy and hydrology.

Liu Mu lit his pipe, obliquely looked at the moonlight, and said slowly: "It seems that it is time for another artifact to appear." ”

Artifact!

Cui Junsu and Tang Jian closed their mouths in shock, Liu Mu is a person they understand, indifferent temperament, and they don't care so much about anything. At that time, it was called a divine item by willow wood, artillery changed the form of war, and the steam engine directly changed the industrial structure of the Tang Dynasty.

So what will another artifact bring?

"Wait a few more days, and when my eldest brother-in-law comes back, I'll show you. This thing is listed as the third top secret of the Huayuan Forbidden Vault, and it can be said that even the saints do not know about it, and there are no more than a hundred people who know this secret. These 100 people assisted in the study of this thing, and those who took their lives as a guarantee to protect the secrets of this thing. ”

Cui Junsu really wanted to ask Liu Mu, what are the second top secret and the first top secret?

But he didn't ask, he believed that Liu Mu would not say that the absolute taboo that even the Tang Emperor hid must be an object that can change the entire Tang Dynasty and be enough to shock the world.

Liu Mu Huayuan Secret Vault, there are seven top secrets in the absolute forbidden area.

At present, even the Tang Emperor Li Shimin only knows that the steam engine ranks fifth and gunpowder ranks seventh. None of the telescopes are classified among the top seven top secrets.

Cui Junsu and Tang Jian waited for Qin Qiong to come back almost every day from this night.

They are very much looking forward to seeing the third ranked artifact of Datang, and I believe that every important minister of Datang wants to know.

Finally, Qin Qiong came back.

Qin Qiong didn't rest, he immediately ran to the courtyard where Liu Mu lived after hearing Cui Junsu's story.

A quarter of an hour later, Liumu's Liaodong garrison could be said to have surpassed the Taiji Palace of the Tang Dynasty, and even Li Chengqian could not exceed the cordon.

At the same time, another site was under martial law, which was the military camp of the Shencewei, fifteen miles away from the courtyard of the willow wood.

"What are you waiting for?" Qin Qiong asked.

"Don't worry, wait until it's dark. Huayuan's third-highest secret is not a certain thing, but a series. It is only said that the first step is barely completed, the second step is still being studied by hundreds of people day and night, and the third and fourth steps are not yet on the edge, and they haven't even touched the door. To really make this work, at least the third step is reached. ”

No matter what Liu Mu said, all Qin Qiong and the other three could feel was mystery.

Finally, it was completely dark.

Qin Qiong ordered to hold the lamp, but Liu Mu stopped the guards.

"Don't you need a lamp?"

"Lamp, let you see a new kind of lamp first." Yanagi took out a steel key from his bosom, which, unlike ordinary keys, was cross-shaped. Then there is a piece of paper inside the tin box, on which are written six strings of six-digit numbers.

Willow's guard left with the key and the six-digit code.

After another quarter of an hour, one of the guards lifted up a spherical glass with a stainless steel stand under it. Then two stainless steel boxes were placed on the table.

Qin Qiong asked, "If this thing is a top-secret object of Huayuan density, you actually bring it with you?" ”

"Big brother-in-law, how to let the guards take the time to practice without taking it with you, it will take at least half a time to train a familiar good player with this thing."

As Yanagi explained, two strong guards began to step on a suspended bicycle outside the door.

The guards in the house first turned on the switch of an iron box, and then turned on the switch of the glass ball.

In an instant, the glass ball lit up, and the bright light was no worse than the sun in the dark night, and the dazzling bright light made Qin Qiong and the others can't help but block it with their hands.

At night, the sudden bright light, even if it is far less bright than the electric lights of later generations, is also a strong light for the era of Datang.

The guards covered the lampshades, and the light softened considerably.

Liu Mu said: "Tang Gong, you are the oldest here, you can write a paragraph, not too long." Then the eldest brother-in-law sent someone to the Shence Guard military camp fifteen miles away, and the people over there will write to you what Tang Gong wrote. My people won't leave this house, you can send someone to guard the door. ”

Qin Qiong will not send someone to guard outside the house, there is no need for Liu Mu to cheat here.

Tang Jian wrote two lines of words, which were completely irrelevant, and could not even form sentences, let alone poems.

Willow's guard sat down at the table, opened another box, put on a helmet that could cover half of his head and his ears, and took out a small object and clicked it a few times.