The two of them traveled through the Tang Dynasty to open a supermarket, and the little Sizi was sup

Chapter 270 A Surprise for Li Chengqian!
"Your Majesty, I am healthy, but I still want that child," Empress Zhangsun said to Li Shimin.

Li Shimin pulled Empress Zhangsun close, saying, "My heart aches for you; you've suffered so much."

"This is nothing. I've been dreaming about it a lot lately. If I don't have the baby, I'll keep thinking about it for the rest of my life, and I'll never forgive myself."

“Didn’t Xiao Ran say before that it would be best not to have any more children?” Li Shimin was still worried.

"The situation is different now. Let the imperial physician take another look. Xiao Ran also said that if things aren't looking good, we'll postpone the appointment."

Postponing the decision was Empress Zhangsun's bottom line; she truly wanted this child.

Li Shimin gently embraced Empress Zhangsun, saying, "From the eldest son Qingque to the beautiful Zhinu, and the second daughter Sizi, Empress, you have suffered too much. I owe you too much."

“They are my children too. Your Majesty owes me nothing.”

Li Shimin nodded, which was considered an agreement.

Empress Zhangsun had not forgotten about Xiao Ran either.

Zhang Anan picked up the walkie-talkie and ordered, "Summon the Imperial Physician to the Lizheng Hall."

Now there's no need to run around shouting; walkie-talkies have improved efficiency and reduced waiting time.

The imperial physician arrived shortly afterward.

At noon, the tutor left the villa.

The afternoon will be used for Li Ke and Li Tai to absorb and consolidate their knowledge.

The two of them tidied up their notes before leaving the room.

"Brother, how is your learning going?" Li Lizhi asked Li Tai.

"It's truly amazing. I never imagined that those chemical elements had so many properties, and I never thought that gold could be viewed in such a different way," Li Tai said, referring to the microscopic perspective.

Li Tai excitedly shared a lot of knowledge about chemistry and his own insights.

"I need to go back to the Tang Dynasty. I've learned how to purify fine salt, and I need to tell my brother." Li Tai became more and more excited as he thought about it.

This is the first one that Li Tai feels he can use.

Empress Zhangsun, wife of Emperor Taizong of Tang, had also been concerned about this issue, and Li Lizhi had also spoken to Xiao Ran about it.

It wasn't done after that.

Xiao Ran and Li Lizhi's plan was to buy coarse salt from the Tang Dynasty, refine it into fine salt, and sell it at a high price to make a profit.

During the Tang Dynasty, most of the salt was still in the hands of aristocratic families, and the imperial court actually controlled very little salt.

"Brother, if we follow the instructions in the chemistry book, it should be fine, right?" Li Tai asked Xiao Ran to confirm.

"It should be fine. If the Tang Dynasty doesn't have filter paper or similar materials, we can buy them here. The chemistry textbook is too simplistic. Let's revise it and then tell His Highness the Crown Prince," Xiao Ran said.

Li Ke, standing beside him, nodded. “Modern purification technology is certainly excellent, but it’s not suitable for the Tang Dynasty. The Tang Dynasty doesn’t have the necessary conditions. We need to find a method that suits the current situation of the Tang Dynasty.”

“Agreed! Sanlang is right. The most advanced technology is definitely unusable in the Tang Dynasty. We can only find what is suitable for the Tang Dynasty,” Xiao Ran said.

Li Tai nodded. "I'll think about it some more and tell you when I'm fully prepared."

After realizing he had no chance of becoming emperor, Li Tai adjusted his mindset.

Only in this way can we survive.

If he didn't get along with Li Chengqian, Li Shimin and Empress Zhangsun would definitely be fine while they were alive, but who knows what would happen in the future.

If you understand your place and help Li Chengqian as much as possible, you will naturally avoid being purged in the future.

Li Lizhi and Princess Yuzhang also took out their phones and started searching.

The siblings had to devise a method for refining fine salt that was suitable for the conditions of the Tang Dynasty.

The refined salt doesn't need to be the same as modern salt; it just needs to be better than the refined salt of the Tang Dynasty.

The siblings pulled Xiao Ran and Xiao Ruoying along to offer advice and suggestions.

Although the three little princesses didn't understand, they still had to stay by her side.

Anyway, I just want to participate.

A few hours later, a systematic method for purifying fine salt was developed. It was formulated based on the specific conditions of the Tang Dynasty.

After Li Lizhi finished writing, she handed it to Xiao Ran, saying, "Young master, take a look. If there are no problems, you can send it to your father and brother in a little while."

"Of course there's no problem," Xiao Ran said after taking a quick look.

Considering that many modern chemical terms might be unfamiliar to Li Shimin and Li Chengqian, Li Tai even provided annotations.

Very thoughtful.

"Perfect timing, I'll go water the vegetables over there." Li Lizhi goes to check on the fruits and vegetables in the greenhouse every day.

"And there's a nest~" The little princess was very enthusiastic about watering the tomatoes.

"Let's go now!" Xiao Ran stood up.

A whole group of people went to the Tang Dynasty.

Li Shimin, who was leisurely drinking tea and chatting, was surprised to see so many people. "Even Sanlang Qingque has come!"

“Father, my brother has prepared a surprise.” Princess Yuzhang looked at Li Tai.

"Oh?" Li Shimin suddenly became interested.

"This is for my elder brother," Li Tai said, handing Li Shimin a method for refining fine salt.

"When I was studying chemistry, I suddenly came across this idea, but the book explained it too simply and it wasn't suitable for large-scale purification. My brother and Lizhi also said that while modern purification methods are good, they are not suitable for the Tang Dynasty. We discussed it and devised this method, which is completely feasible in the Tang Dynasty."

"Excellent, excellent, excellent, excellent!" Li Shimin became more and more excited as he looked at it. "Qingque Sanlang and the others have put in a lot of effort. This is very important to the Tang Dynasty."

Li Shimin's eyes were full of praise.

"Anan, let Dalang come over!" Li Shimin called out.

"It's Your Majesty!" Zhang Anan picked up the walkie-talkie and called Li Chengqian.

Not long after, Li Chengqian arrived and saw that Li Tai and Li Ke were both there.

Xiao Ran, Li Lizhi, and the others were outside, busy watering and tending to the fruits and vegetables.

"These are gifts from Qingque and Sanlang for you. See if you like them." Li Shimin handed the proposal to Li Chengqian.

Li Chengqian was puzzled, but when he opened the document and saw the method for purifying fine salt, he became more and more excited.

Li Chengqian was very excited after reading it. He pulled Li Tai and Li Ke along, saying, "How fortunate we are to have you as brothers! It is a blessing for the Tang Dynasty and a boon for the people!"

“Brother, this is what we should do,” Li Tai smiled.

Li Shimin and Empress Zhangsun were naturally very satisfied with this scene.

Brotherly love and respect!

"With this law in place, the imperial court has gained another source of revenue."

"Sell the fine salt at a slightly higher price, just a little cheaper than the supermarket price," Li Shimin instructed.

As for making fine salt available to ordinary people, that's unrealistic.

This was a limitation of the times, and Li Shimin and Li Chengqian naturally understood it as well.

For ordinary people, eating coarse salt is already a luxury; there are even people who can't afford coarse salt.

It's unlikely that ordinary people would consume refined salt.

All Li Chengqian and the imperial court could do was refine large quantities of fine salt and sell it at high prices to aristocratic families and wealthy individuals, thus increasing the court's revenue.

Then invest this money in improving people's lives and benefiting the people.

If possible, try to lower the price of coarse salt, so that wealthy families earn less and more ordinary people can afford salt instead of using salt cloths or vinegar cloths.

Li Chengqian stood up and bowed slightly to his two brothers to express his gratitude.

"Brother, you mustn't!" Li Tai and Li Ke were startled.

(End of this chapter)