Otaku Engineer in Great Tang Dynasty

"My husband~! Has something happened in the past few days? My concubine is frowning when I see you several times~!"

That night.

Li Mansion West Courtyard.

Han Yuxi helped Li Zexuan undress and asked quietly behind her back.

"Well, it's something~! Lady remember the assassin in Chang'an City East a few days ago~?"

Li Zexuan nodded and said.

Husband and wife are one, and the Seventh Xiu Sect is not a very powerful force in Li Zexuan's eyes, so he feels that there is no need to hide from his wife.

Han Yuxi shook her hand holding the clothes, and saw her frowning, her voice suddenly became cold, and she replied:

"Of course I remember~! That person was injured by the husband. If the concubine is capable, she will be broken into pieces~!"

Li Zexuan smiled, turned around and took Han Yuxi into his arms, saying:

"Hehe~! All these fights and kills are done by men~! Lady, you can eat, drink, and rest~!"

Han Yuxi angrily said, "Eat, drink, and rest. Isn't that a pig~?"

"Haha~! What happened to the pig~? The pig is still the second smartest animal in the world~!"

"Go~! Xianggong, don't be poor, hurry up and talk about business~! What did you mean by that assassin~? Could it be that you met him again these few days~?"

Han Yuxibai glanced at Li Zexuan, and then asked seriously.

"Hmm~! That's not true~!"

Li Zexuan pulled Han Yuxi into the bed, and then continued: "Yesterday I accidentally heard the origin of the assassin from Wang Renbiao's house. It is said that he was from the Seventh Sect of Snake Mountain. Then I went to Jingzhao Mansion to ask Washington Mansion. Yin helped me find the specific location of Snake Ling Mountain~! I think there should be results in a few days~!"

"Snake Lingshan~?"

Han Yuxi murmured, after all, she felt that she had never heard of it before, and then continued: "I hope Jingzhao Mansion can bring this assassin to justice, otherwise the concubine's heart will always be unstable~!"

Although Li Zexuan knew that this matter would not be solved so easily, he still said with relief: "I will, I will~! This time I will definitely catch the assassin~! Maid~, let's rest early~! "

"Hmm~!"

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"Huh~? This cement is really interesting~!"

In the Temple of Ganlu, the candlelight was still on late at night.

Li Er played with a palm-sized cement block on the Dragon Case and smiled deeply.

Sitting next to him is Empress Changsun.

The couple did not sleep in the Lizheng Hall most of the night, but ran to the Ganlu Hall to work, not knowing what they thought.

"Your Majesty, is this Qingque brought back today~?"

Queen Changsun asked curiously.

"Haha~! Exactly~! It is said that this is a new material specially developed by Li Zexuan for Qiquge Workshop to replace glutinous rice mortar. Now it seems that the effect is surprisingly good~!"

Li Er hehe sighed and handed a large piece of cement in his hand to Empress Changsun.

By the way, I don't know where Li Tai brought this product from a piece of cement pavement that was broken at the construction site. It is estimated that a certain craftsman will scold his mother again tomorrow!

"Wow~! It's so strong~! Your Majesty, is this big piece made of cement~?"

Empress Changsun took it and squeezed it with her hand. She was surprised and hurriedly asked.

"Well, it is true! The shaping ability of this cement is better than glutinous rice mortar! Li Zexuan has brought me a new and more practical and cheaper thing for Datang!"

Li Eryi sighed.

"Huh~? Why did your majesty know that this cement is cheaper than glutinous rice mortar~?"

Queen Changsun asked curiously.

"Heh~! This is still necessary~? You can guess it. If the cost of this thing is higher than that of glutinous rice mortar, why would Li Zexuan bother to study it~? I guess the ingredients in this cement should be some sand and lime That's it, it doesn't contain any expensive raw materials!"

If Li Zexuan were here, he would definitely give Li Er a wave of "6666666". Lao Li's initial guess was so much that he had no friends!

"Well~! So, if this cement appeared ten years earlier, wouldn't the wall of Chang'an City save a lot of money? Besides, if the wall is built with cement, it should be stronger?"

Empress Changsun said regretfully.

The predecessor of the capital of Tang Dynasty, Chang'an, was the Daxing City built by Yuwenkai in the early Sui Dynasty. The "Pictures of Yuanhe Prefectures and Counties" records that: Elephants, so the palace was built with ninety-two, to be the residence of the emperor, ninety-three and one hundred divisions, to respond to the number of gentlemen, ninety-five nobles, and do not want ordinary people to live, so Xuandu Temple and Xingshan Temple were built as towns "It means to carry out the overall layout design of the capital according to the Zhouyi Xiangshu theory and the six lines of Qianfu.

In the first year of Wude, at the beginning of the Tang Dynasty, Li Yuan ordered Yan Lide to rebuild the outer city of Chang'an City.

The mileage in the Tang Dynasty was 360 steps per mile for long distances and 300 steps per mile for small distances; 12 inches for large feet ~ www.ltnovel.com ~ 10 inches for small feet. At that time, Chang'an City was combined with large distances and large feet. After calculation, the total length of the outer city wall has reached about 36 kilometers. This was undoubtedly a magnificent project unparalleled in the world at that time. Of course, the money spent was also an astronomical figure.

Therefore, Empress Changsun will feel a little regret after seeing the cement.

Since last year's "Wei Shui Alliance", Li Er has been worrying about money. Empress Changsun will naturally be particularly sensitive and caring about saving money.

"Haha~! That's the end of the matter, it's useless to say more~! What's more, even if the strong wall meets a real strong enemy, it will be useless! My Datang's military personnel are the strongest wall of my Datang~! The descendants of future generations do not live up to their ambitions, and are approached by foreign soldiers and can only be shrunk within the city walls. Then I think it would be better to subjugate the country~! My Great Tang, the four barbarians must surrender, and the nations are afraid~! No one will come to Chang'an. It's city~!"

Speaking of the city wall, Li Er suddenly remembered that last year, the Jieli and Tuli Khan, led two hundred thousand Turkic soldiers, lined up the Weishui, and came under Chang'an. That time, if Jie Li was brave and attacked Chang'an City regardless of recklessness, even if the city wall of Chang'an City was so majestic, it might not be able to withstand the attack of these two hundred thousand soldiers. This gave Li Er a new kind of newness to the city wall. From the view, defending is worse than attacking!

This is the difference between Li Er and the next kings! If Li Zexuan passed through the Song Dynasty or the middle and late Ming Dynasty, if cement was produced, there was a 90% probability that the monarch at that time would use cement to reinforce the city wall and defend against foreign enemies. They are "upgrading armor" to ensure survival, and what Li Er pursues is to use offense instead of defense. When all enemies are frightened, they naturally don't need walls to resist foreign enemies!

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