No palace servant knew why the emperor was suddenly depressed. Even if the military reported urgently and the financial situation was insufficient, he would not see the emperor frowning and thinking hard.

"Who will encounter people or things outside when the emperor leaves the palace?" Wang Tigan reported two good news to the emperor. The emperor was just happy for the time being. He didn't understand why, so he secretly called Fan Xiaohui out to ask.

Fan Xiaohui was also puzzled, tilted her head and frowned for thinking, and said, "I talked and laughed with those students at the Academy of Sciences, and then returned to the palace. I didn't encounter anything!"

"Think about it again." Wang Ti couldn't stop and asked again: "The Emperor probably has to sleep in the warm room tonight. You should serve him. If you don't let the Emperor be happy, you should be careful to punish him."

Fan Xiaohui blushed. The emperor's punishment is so embarrassing!

The girl thought hard and finally thought of the little thing about the mouse catching rats. It sounded unimportant, but the emperor seemed to be unhappy from that point on.

Wang Titan touched his chin and thought for a while, and randomly guessed: "Is it because the emperor is worried about the White Lady and those cats eating mice, and he feels disgusting?"

As he said that, Lao Wang turned his gaze to Fan Xiaohui and ordered: "You go and bring the mistress that the emperor likes the most, or Xiaowu, and see if the emperor is because of this."

"Why are you really angry?" Fan Xiaohui widened her eyes, very reluctant.

Wang Tigan looked majestic, and Fan Xiaohui had to admit defeat and pouted and left.

After a while, Fan Xiaohui walked into the hall with her cat in her arms. When she saw the emperor's gaze turning, she immediately stood still and did not dare to move forward.

Will cats get plague when eating mice? It seems that they have never heard of such things, why?

Zhu Youxiao's eyes were filled with scrutiny and confusion. When Fan Xiaohui approached, he reached out to bring the cat over and looked at it thoughtfully.

Oh, it turns out that it was not because cats eat mice. Fan Xiaohui breathed a sigh of relief and said with a smile: "The cat is very well-behaved and has been taken care of."

The emperor smiled, a little bitter and a little helpless.

Of course, he knew that good hygiene habits could reduce the breeding of mosquitoes, flies, bed bugs, and mice, and reduce the occurrence of various infectious diseases.

However, most of the people in the Ming Dynasty were not rich and could take a bath and change clothes frequently. There was no standard for the treatment of garbage in the city, and it was inevitable that drinking water would be contaminated.

Of course, compared with the poor, dirty and foul-smelling Europe in the Middle Ages, the Ming Dynasty was still good. Although this was still far from Zhu Youxiao's standards.

Personal hygiene habits depend on their wealth. At least a few pieces of changing clothes must be available and soap can be used.

Public health requires government investment to continuously improve the urban system, such as sanitation, epidemic prevention, etc. From scratch, it will require continuous and huge funds.

The emperor held the cat in front of him, and looked a little smiling on his face, and asked jokingly: "Why do cats eat mice? Why are you not afraid of getting sick?"

Although the emperor was not particularly clear, he knew that eating mice was definitely good for the body, and it should be a supplement to the lack of some element.

Moreover, he also knew that cats' immune system was probably resistant to plague bacteria. Just like scavengers, they would not get sick by eating rotten food.

Meow! The cat screamed obediently, and stretched out his tongue to lick the emperor's hand.

The emperor laughed, and his happy look made Fan Xiaohui and Wang Tigan, who had been standing respectfully beside the hall, breathed a sigh of relief.

The emperor teased the cat for a while, and then gave Fan Xiaohui another head and ordered: "Summoners from the capital to enter the palace tomorrow."

Foreign devil?! Fan Xiaohui blinked her big eyes and was very expectant. I heard of it, but I haven't seen it with my own eyes. This time I can see it fresh.

How did the Black Death stop in Europe?

Although Zhu Youxiao had his own guesses and judgments, he still wanted to know more so that he could prepare in advance and prevent in advance.

This is not a small matter, but a major event that concerns the life and death of tens of millions of people. According to historical records, more than 10 million people died in the plague in the late Ming Dynasty. Wherever more than 10 million people were placed, they were all the population of a medium-sized country!

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Pacifying Liao and destroying slaves, and exerting the whole country's strength, is the main theme of the "Da Ming Tribune" recently, and it is the word that appears the most frequently.

But no one would think that the emperor was still worried about the rat, and even if he said it, no one understood.

Jiannu can be destroyed, and the painful history will not repeat itself. Even if we cannot compete for the full results this time, it will only delay for another one or two years. Even if there are a few more years, the emperor will still have confidence.

But the emperor knew that he could not stop the plague, nor could he destroy it. This was like the major disaster of the Little Ice Age, and it was inevitable and would definitely come.

Since this is the case, the emperor was also ready to try his best to reduce the harm. There is only one way.

Alas, knowing too much is the main reason why I have to work hard. Although the little carpenter in history is a short-lived ghost, he should be happier than himself, right?

Maybe this is how life is, and you can spend it through constantly solving problems. It’s better to just follow the steps, deal with them one by one, and solve them one by one!

"Five hundred rockets were produced in such a short time?" Although the emperor was a little surprised, he still praised more, "Thank you for your hard work in Sun Qing."

Sun Yuanhua hurriedly bowed and said humbly, "Long live the misunderstanding, the duty of a weak minister is not dared to say the word "hard work."

The emperor smiled and said, "Where is the operator, you cannot be fully equipped, nor can you fully exert the power of the rocket!"

"Long live the start of the game." Sun Yuanhua replied: "The rocket launch is simple, only a small number of operators can be used. It is nothing more than going to the [567 Chinese www.567zw.top] to measure the distance, and then roughly adjust the next direction."

The launcher is a triangular iron frame with an iron pipe on it. After inserting the rocket, it can only adjust the elevation angle. If the direction is changed, it can only be moved as a whole.

Simple manufacturing and easy to operate, which is exactly the advantage of the Rockets.

In terms of accuracy, it is definitely not as accurate as the artillery, but its maximum range can reach more than two thousand meters, which is nearly twice as far as the Red Barbarian Artillery.

The emperor thought about it and believed that it was necessary to explain to the frontline generals, make full use of the Rockets' ultra-long range, and use it at critical moments to achieve the greatest effect.

After his thoughts were settled, the emperor raised his head and asked with a good heart: "Her Xu is focusing on studying agriculture. Please resign from the president of the Academy of Sciences. Sun Qing is willing to take charge."

The first president of the Academy of Sciences was the imperially appointed Xu Guangqi, and he was well-deservedly appointed.

But while Xu Guangqi compiled the calendar, he guided Chen Zilong and others to conduct agricultural research. The dean was just a name and had no time to manage and guide.

Sun Yuanhua bowed and said, "I am willing to go."

After pausing, he added: "But Weichen thinks the work of the Gunpowder Weapon Bureau is more important."
Chapter completed!