"Husband ~! Did something happen in the past few days? I've seen you with a worried frown on your face several times ~! "
Night.
Li Mansion West Courtyard.
Han Yuxi asked softly while helping Li Zexuan undress.
"Well, something happened ~! Do you remember the assassin in the east of Chang'an City a few days ago ~? "
Li Zexuan nodded and said.
Husband and wife were one. Besides, the Seven Cultivators Sect was not a very powerful force in Li Zexuan's eyes, so he felt that there was no need to hide it from his wife.
Han Yuxi's hand that was holding the clothes suddenly trembled. She frowned and her voice suddenly became cold as she replied,
"Of course I remember ~! That person injured you. If I had the ability, I would definitely tear him into pieces ~! "
Li Zexuan chuckled, turned around, and pulled Han Yuxi into his arms.
"Haha ~! Let the men do the fighting and killing ~! Wife, you just need to eat, drink, and rest well ~! "
Han Yuxi angrily said, "Eat, drink, and rest well? Wouldn't I become a pig ~?"
"Haha ~! What's wrong with pigs ~? Pigs are the second smartest animals in the world ~! "
"Go away ~! Husband, don't joke around, let's talk business ~! What did you mean by the assassin just now ~? Could it be that you met him again in the past few days ~? "
Han Yuxi rolled her eyes at Li Zexuan and asked seriously.
"Oh ~! That's not it ~! "
Li Zexuan pulled Han Yuxi to lie on the bed together and then continued, "Yesterday, I accidentally heard the origin of the assassin from Wang Renbiao's house. It was said that he was from the Seven Cultivators Sect of Snake Spirit Mountain. Then, I went to the capital office and asked Magistrate Hua to help me find the specific location of Snake Spirit Mountain ~! I think there should be a result in a few days ~! "
"Snake Spirit Mountain ~?"
Han Yuxi muttered it again. In the end, she still felt that she had never heard of it before. She then said, "I hope that the capital government can bring this assassin to justice. Otherwise, my heart will always be uneasy ~!"
Although Li Zexuan knew in his heart that this matter would not be resolved so easily, he still comforted him, "Of course, of course! I'll definitely catch the assassin this time! Wife ~, let's rest early ~! "
"Okay ~!"
.....
"Hmm? This cement is really interesting ~! "
In the Sweet Dew Hall, the candlelight was still lit even in the middle of the night.
Li Er played with a palm-sized cement block on the dragon table and smiled meaningfully.
Beside him sat Empress Zhangsun.
This husband and wife were not sleeping in the Li Zheng Hall in the middle of the night. Instead, they came to the Sweet Dew Hall to work. Who knew what they were thinking.
"Your Majesty, did Qingque bring this back today?"
Empress Zhangsun asked curiously.
"Haha! That's right ~! It's said that this is a new material that Li Zexuan asked the Strange Taste Pavilion Workshop to develop to replace glutinous rice mortar. Now, it seems that the effect is unexpectedly good ~! "
Li Er sighed and then handed a large piece of cement to Empress Zhangsun.
Speaking of which, who knew where Li Tai broke a piece of cement road from the construction site and brought it back. It was estimated that some craftsman would curse again tomorrow!
"Wow ~! It's so sturdy ~! Your Majesty, is this large piece all made of cement ~? "
Empress Zhangsun took it and squeezed it with her hand. She was immediately shocked and asked hurriedly.
"Yes, indeed! The shaping ability of this cement is completely superior to that of glutinous rice mortar! Li Zexuan has brought a new, more practical, and cheaper thing to our Tang Dynasty! "
Li Er sighed with emotion.
"Hmm ~? Your Majesty, how did you know that this cement is cheaper than glutinous rice mortar ~? "
Empress Zhangsun asked curiously.
"Heh ~! Needless to say ~? It's easy to guess. If the cost of this thing is higher than that of glutinous rice mortar, why would Li Zexuan spend so much effort to study it ~? I estimate that the composition of this cement should be just some sand and lime. It doesn't contain any expensive raw materials! "
If Li Zexuan were here, he would definitely give Li Er a wave of "6666666". Old Li's preliminary guess was simply too awesome!
"Hmm ~! In that case, if this cement had appeared ten years earlier, wouldn't the city walls of Chang 'an City save a lot of money? Besides, if the city walls were built with cement, they should be stronger, right? "
Empress Zhangsun said with regret.
The predecessor of the Tang Dynasty's capital, Chang 'an, was Daxing City built by Yuwen Kai in the early Sui Dynasty. The "Yuanhe County Atlas" recorded, "Sui's camp capital, Yuwen Kai had six high slopes in the north and south of Vermilion Bird Street, which were the signs of the Qian Hexagram. Therefore, he built the palace with 92 to be the residence of the emperor, and established a hundred departments with 93 to be the number of gentlemen. He didn't want ordinary people to live there, so he built Xuandu Temple and Xingshan Temple to guard it." It meant to refer to the theory of Zhou Yi's signs and the Qian Hexagram's six lines to carry out the overall layout design of the capital.
In the first year of Wude, the Tang Dynasty was just established. Li Yuan ordered Yan Lide to rebuild the outer city of Chang 'an City.
The mileage of the Tang Dynasty was 360 steps for one li, and 300 steps for one li for one li. The big foot was 12 inches, and the small foot was 10 inches. At that time, the total length of the outer city walls of Chang 'an City had reached about 36 kilometers. This was undoubtedly an unparalleled grand project in that era. Of course, the money spent was also an astronomical figure.
Therefore, Empress Zhangsun felt a little regretful when she saw the cement.
Ever since the "Wei River Alliance" last year, Li Er had been worrying about money. Empress Zhangsun was naturally especially sensitive and concerned about saving money.
"Haha! Now that things have come to this, it's useless to say more ~! Moreover, no matter how strong the city walls are, they will be useless in the face of a truly strong enemy! The soldiers of the Tang Dynasty are the strongest city walls of the Tang Dynasty ~! If the descendants of the future generations fail to live up to expectations and are attacked by foreign soldiers, they can only hide within the city walls. Then, I feel that it's better for the country to perish ~! My Tang Dynasty must have the four barbarians submit and all the countries fear ~! No one will be able to attack Chang 'an City anymore ~! "
Speaking of the city walls, Li Er suddenly remembered that last year, Xieli and Tuli Khan led 200,000 Turkic soldiers to the Wei River and attacked Chang 'an City. At that time, if Xieli was a little braver and attacked Chang 'an City recklessly, even if the city walls of Chang' an City were tall and majestic, they would not be able to withstand the attack of these 200,000 soldiers. This made Li Er have a new view of the city walls. It was better to attack forcefully than to defend to the death!
This was the difference between Li Er and the emperors of the future generations! If Li Zexuan had time-traveled to the Song Dynasty or the middle to late Ming Dynasty, if he were to create cement again, there was a 90% chance that the emperors of that time would use the cement to strengthen the city walls and defend against foreign enemies. They would "increase the defense" and ensure their survival. However, what Li Er pursued was completely to use offense as defense. When all the enemies were terrified, naturally, there would be no need for the city walls to defend against foreign enemies!
…
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