"Qin Qingjue: Loyalty 30, Opinion 20, Important Information: Not Yet."

"Shuntianfu Yin: Zhou Shuhang, loyalty: 100, favorability 10. Important information, not available at this time. ”

"Night Rose: Loyalty. 100, 30 Opinion, Important Information: Cold-blooded and ruthless, killing machine. ”

“…………”

Tang Wenyuan recorded this information in a small notebook and put it in the storage space, so that he could turn it out and look at it if he was fine. After all, it's impossible to see so many people every day.

What is recorded in the small book is not only the attributes displayed by each character, but also what Tang Wenyuan knows about the Wen Dynasty now. As long as they are put in the storage space, these things will become Tang Wenyuan's own secrets, and outsiders will never be able to know.

The weather in the Wen Dynasty seemed to be a temperate monsoon climate and a subtropical monsoon climate? Tang Wenyuan had no way to accurately judge, and most of the geography knowledge he memorized when he was in school was returned to the teacher. The knowledge in the system is not comprehensive enough, and there is no knowledge related to geography.

As for the northern hemisphere, the southern hemisphere, the eastern hemisphere, the western hemisphere, and so on, it is even more difficult to judge. The navigation skills of the Wen Dynasty were not even one-thirtieth of that of the Ming Dynasty, but some princes in the south had some naval troops under them.

These are all the current situation of the Wen Dynasty that Tang Wenyuan learned from books.

Early in the morning, Tang Wenyuan instructed the little dog to let people prepare pieces of cardboard, palm-sized square pieces of paper, the more the better. Taking advantage of the time when Jinyiwei gathered, Tang Wenyuan exchanged a saltpeter from the mall, planning to try to make ice.

In the scorching summer, ice cubes have naturally become a good product to cool down. But even in such a prosperous Wen Dynasty, saltpeter was a rare item, and ice cubes were only enjoyed by the royal family and nobles, and ordinary families could not afford it.

With the knowledge of basic chemistry and basic physics, some simple experiments can be made.

Tang Wenyuan took out the purchased saltpeter from the storage space and found that the 50 points were quite cost-effective, and one saltpeter was enough for a cubic amount.

Mu Ruyi followed Tang Wenyuan's instructions and went to get a silver basin. Among the common metals, gold, silver, copper, iron, aluminum, and silver have the highest thermal conductivity, so they are most suitable for saltpeter to make ice.

Boiling water and large wooden basins have been prepared, Tang Wenyuan is really not at ease about the quality of the well water in the Wen Dynasty, and if he wants to make edible ice cubes, boiled water is naturally the best choice.

The oranges are also ready, and Tang Wenyuan plans to make some chilled orange water today. It's a pity that the Wen Dynasty didn't have watermelons, so they couldn't taste the delicious taste of chilled watermelon juice.

Everything was ready, and the little dog and Mu Ruyi looked at the pile of white saltpeter crystals curiously.

"Your Majesty, what is this?"

"Saltpeter, the ice used in the ice is made from it. Ruyi, you ask the palace maid to pinch some more orange juice, put some rock sugar in it, and prepare a big pot. Today I will make you chilled orange juice to drink. ”

"Chilled orange juice?" Mu Ruyi had some expectations in her heart, she was born poor, and she had never seen many things used by nobles. Don't talk about chilled orange juice, oranges are rarely eaten.

After coming to the Funing Palace, it was a great benefit, not only used soap and toothpaste, but also served as food in the imperial dining room. The main Tang Wenyuan did not have the extravagant and wasteful behavior of the ancient emperors, and he could only eat a little of the food prepared in the imperial dining room, and the rest was distributed to the attendants of the Funing Palace.

Tang Wenyuan nodded, "Well, chilled orange juice." ”

As he spoke, he poured boiling water into the silver basin, and then put the silver basin into the large wooden basin that was already filled with water. Ice formed by reacting saltpeter directly with water cannot be eaten directly, so this method is used.

Let the water in the large basin react with saltpeter, and through the thermal conductivity of the silver basin, the water in the silver basin will freeze.

After putting the silver basin, Tang Wenyuan began to pour saltpeter into the wooden basin, and there was no accurate measuring tool, so he used a bowl to act as a bowl, and the ratio of water to saltpeter was about three to one. Although you can't be sure, you can slowly try to add it to it, and saltpeter ice making is not a dangerous experiment, try slowly, and you can always find a good balance.

Saltpeter, whose scientific name is calcium nitrate, is a simple physical reaction that absorbs heat when dissolved in water, causing the water to freeze.

Tang Wenyuan continued to add saltpeter to the large wooden basin, and as time passed, a thin layer of ice began to slowly condense on the surface of the water. It won't be long before the water in the silver basin will freeze.

"Your Majesty, why is that? It looks like a trick. Mu Ruyi stared at the incredible scene in front of him with wide eyes.

"Saltpeter absorbs the heat of the water when it is put into the water, and the temperature of the water is getting lower and lower, and it will slowly freeze in the silver basin in the wooden basin...... Well, it's just some very simple basics, and I'll teach you slowly in the future. Tang Wenyuan didn't think that Mu Ruyi could understand this basic physical reaction. And if you want to change something, from changing knowledge and thinking, it is undoubtedly the best choice.

Mu Ruyi really didn't understand, so he had to pretend to be thoughtful and nodded, otherwise wouldn't he seem too stupid?

"Ruyi, after the ice cubes are formed, you can refrigerate those orange juices and freeze them more, I will be of great use today."

"The slave obeys."

At this time, Tang Wenyuan asked the prepared pieces of cardboard to be sent over, and no one knew what he was going to do with them.

On the side of Night Rose and Dogdan, everyone has been gathered, and the entire Jinyi Guard plus the guards of the Funing Palace, a total of more than 1,100 people. Fortunately, the Funing Hall is the emperor's bedroom, the building is magnificent, the courtyard is vast, and it is more than enough to accommodate these people.

Tang Wenyuan walked out with a headset and a megaphone, and more than 1,000 people lined up in the courtyard.

"Xiaoye, dogs, dogs, come over for a while." Tang Wenyuan greeted.

Night Rose They hurriedly stepped forward, "Please give your Majesty's orders." ”

"I'm going to change some of the people in Jinyiwei, you can remember it. From the left, the eight people behind the first row are all changed. The second row, four in the middle and six in the back. Third Row ......"

Tang Wenyuan screened out all those who had a loyalty of less than 80. After all, he plans to build a team of henchmen, and absolute loyalty is a must.

Coincidentally, after Tang Wenyuan finished screening, he counted the remaining people and found that there were exactly 666 people left, 666.

This number made Tang Wenyuan quite satisfied, well, Geely.

"Xiaoye, dogs, dogs, the three of you will also follow the training today, learn how I trained you, and the matter of training the army in the future will be in your hands."

"Obedience."

"Let's run first, around the courtyard of the Funing Palace, run fifteen laps, fast or slow, but you must run, you can't stop, whoever doesn't run enough, will be punished."