Reality proved that for the Emperor, as long as he had something in his territory, everything was not a problem. Within a day, all the saltpeter around Chang 'an City had been plundered.
The ice produced on the second day was enough to supply the entire Imperial Palace. On the third day, it was more than enough to supply the Imperial Court.
Inside the Lizheng Hall.
The four ice basins continuously emitted cold air and white smoke. The heat in the entire hall was completely gone, and it was refreshing. Once the ice in the ice basins melted, the palace maids would immediately replace them with new ice basins to maintain the temperature in the shop.
On the soft couch, Princess Changle, who was dressed in a colorful palace dress, was holding a stethoscope with a solemn expression. She was treating Empress Zhangsun, who was lying on the soft couch. Although the imperial physicians had already treated her, Empress Zhangsun was still very cooperative with Princess Changle.
"Mother's body is fine now."
Princess Changle heaved a heavy sigh of relief. She removed the stethoscope from Empress Zhangsun's hand and released the blood pressure monitor at the same time and said joyfully.
Not only did the students of the Imperial College have a field holiday, but even the Female Medical College was no exception. They also had a month's field holiday. It was because of this that Princess Changle was able to return to the Imperial Palace and reunite with Empress Zhangsun.
"Changle's medical skills are brilliant. Mother's body feels much better." Empress Zhangsun said with a gratified expression. As a princess, she did not have to endure the pain of learning medicine. However, Princess Changle was willing to endure it for her illness. How could Empress Zhangsun not be touched by her filial piety?
"Imperial Mother is teasing me again. This child has only learned medicine for a few days. How can I compare to the imperial physicians? However, Imperial Mother's recovery this time is all thanks to these ice basins." Princess Changle pouted.
Empress Zhangsun's Qi was most afraid of hot weather, which often caused chest tightness. Although there was ice in the palace in the past, it could only be used to relieve the heat when it was the hottest. They had never used ice so extravagantly like now. Without the torment of the heat, Empress Zhangsun's Qi naturally improved a lot.
Empress Zhangsun sighed. "Originally, I was going to Ninety Percent Palace to avoid the summer heat. I was worried that I would be separated from my son. Now that I have this method of creating ice, we can finally reunite." Once he went to the Ninety Percent Palace, he would not be able to come back in one or two months. Princess Changle still had to go to the Women's Medical College, so she naturally could not follow him.
Although it was cooler in the Ninety Percent Palace, the fatigue of the journey was not an easy thing. It was naturally better to be able to stay in the Hall of Governance and enjoy such a comfortable environment.
"I heard that this method of making ice from saltpeter was invented by Marquis Merton." Changle looked at the ice basins around her curiously. Meton's method of making ice in the summer amazed her.
Empress Zhangsun smiled slightly and said, "Other than him, who else can make these strange things?"
"Imperial Mother, this method of making ice is not strange. Moreover, it can make Imperial Mother's condition better. That is the best knowledge." Princess Changle pouted and said.
"Changle is still filial."
The mother and daughter were talking about intimate things at the side, and they were happy and harmonious.
"Bang!"
The door of the Hall of Governance was heavily pushed open by Li Zhi, who was covered in mud. Suddenly, a gust of hot air rushed into the hall.
"Imperial Mother's place is still cooler!" Li Zhi threw himself into the ice basin in front of Empress Zhangsun, felt the cool air, and said comfortably.
"Where did you go to play crazily? Why are you covered in mud? "Empress Zhangsun lovingly held a handkerchief and wiped the mud off Li Zhi's face.
"Imperial Mother, Meton was digging a pond. This child accidentally got a bit of mud on it." Any child was naturally close to their mother, even if their mother was the Empress. If Li Shimin was here, Li Zhi would have hidden far away.
"Marquis Merton? Why is he digging a pond? To raise fish? "Princess Changle said in surprise.
Empress Zhangsun also showed a surprised expression.
"It's for swimming to avoid the summer heat! He wants to build a big swimming pool. The water is blue. It's very beautiful! "Li Zhi said and gestured.
"Ninth Brother, what nonsense are you talking about? How can the water be blue?" Changle touched Li Zhi's dirty face lovingly. She had never heard of a swimming pool. It was just a place to bathe. But why would the water used for bathing be blue?
"Is it true? If you don't believe me, Imperial Sister, look! " Li Zhi saw that Changle didn't believe him and immediately became anxious. He took out a piece of drawing paper from his sleeve and handed it to Changle.
"This is?" Princess Changle took it and looked at it in confusion. She was immediately attracted by the scenery in the drawing.
In the wide pond, there was a pool of blue water that rippled. Three sides of the pool were covered with white marble slabs, while the last side was covered with sand. With Moton's Spring and Autumn brushwork, a beautiful painting of a swimming pool appeared on the paper.
Meton's plan to avoid the summer heat was exposed when he accidentally bumped into Li Shimin. Meton might as well go all the way and offer the swimming pool to prevent Li Shimin from coming after him in the future.
At the same time, he also offered the rendering of the swimming pool. Li Shimin decided to build a swimming pool in the Imperial Palace at first sight. Meton was undoubtedly the strong man in charge of building a swimming pool for the Imperial Palace. After all, he was the only one who had built this kind of new thing.
"It's so beautiful!" Princess Changle was immediately attracted by the beautiful scenery in the drawing.
"Beach, seawater, it's just like being in the sea?" Empress Zhangsun murmured.
"The sea?" Princess Changle's eyes immediately lit up and she fell into a reverie.
The most important reason why swimming pools in the future were so stylish was because it gave people the feeling of being in the sea.
The longer one stayed in the Imperial Palace, the more they yearned for freedom. The sea was the most vast and representative of freedom. Princess Changle couldn't help but become more and more interested in the swimming pool in the drawing.
On the hot summer day, on the several weeping willows that were as thick as a person's arm around the Imperial Liquid Pool, a few cicadas that had escaped the pursuit of the eunuchs kept chirping, adding a bit of irritability to this hot weather.
In front of a side hall beside the Imperial Liquid Pool.
Meton was sweating profusely as he directed a group of craftsmen to work hard. Although the efficiency had increased by more than ten times with the help of the Mohist Machinery, the swimming pool that Meton was building for the Imperial Palace was much larger than the work in the Mo Estate's backyard.
"The adult area should be more than three feet deep, the children's area should not be more than three feet deep, the diving platform should be two feet deep, and the track should be more than fifty steps deep." Meton explained his requirements to the craftsmen sent by the supervisor.
Of course, the one in charge of the construction was not Mo Jiazi's brother, but the craftsmen sent by the supervisor. The leader was a middle-aged craftsman with excellent craftsmanship. In the Mo Family Village, only Old Zhang and other craftsmen could compare with him.
"Marquis, don't worry. It won't delay the construction period." The middle-aged craftsman sweated profusely as he promised. In his opinion, building this swimming pool was the simplest thing. Although the work was a bit large, it was only a matter of time before it was completed. There was no technical content in itself.
Meton inspected again and found that everything was working normally. Then he returned to a pavilion under the weeping willow and found that his drawing on the stone table in the pavilion had already disappeared. Only then did he remember Li Zhi's sneaky actions just now. He must have taken it away.
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