After getting off the podium, Guan Yi took Ganlingwang and others to visit two full-time teachers from Longshouyuan College.

One is the famous Huangfu Mi. This man is the "ancestor of acupuncture" respected in the traditional Chinese medicine community. His medical skills are well-deserved as the first in the world in this era when Hua Tuo and Zhang Zhongjing had passed away.

As Huangfu Song's great-grandson, Huangfu Mi is of course a child of aristocratic families. Fortunately, he is an alternative among the children of aristocratic families: he is not interested in being an official, but likes medicine and literature. Therefore, after Sima Yan ascended the throne, he did not accept it. Guan Yi just described the concept of preventing smallpox in a letter, Huangfu Mi willingly came to Chang'an and signed a ten-year contract to Longshouyuan Academy.

And the other one, if you are not a math major, you don’t know that he is not surprised. If you are a math major, then his name cannot be avoided: "Nine Chapters of Arithmetic Notes", the author of "The Island Arithmetic Sutra", the founder of the ancient Chinese mathematical system, Liu Hui.

The general division, approximate division, four-point operation, square opening, square opening generation irrational numbers, linear equation systems, methods for finding areas of various irregular geometric figures, sphere area formulas, reparative differences, circle cutting method to find pi, etc., are all created by it or summarized by it into theory...

And mathematics is the basis of all natural sciences. Guan Yi, the greatest mathematician of this era, certainly had to take it under his command.

As a noble family, Huangfu Mi specializes in medicine and literature without any worries. Liu Hui is a commoner and lives a hard life. Therefore, the invitation to Liu Hui is much easier than Huangfu Mi: After Si Wen Cao brought Guan Yi's letter, promising to hire him at a high salary and unlimited funds to support him in scientific experiments, Liu Hui was happy.

"King, everyone, this one is Mr. Huangfu Jing'an. In Yi's opinion, Mr. Jing'an is the first doctor in the world."

As an official society, officials have always been the best. Below officials, teachers are the second respected profession. As for doctors...

Zhu Danxi, a medical master of the Yuan Dynasty, was a super master who made pioneering contributions to traditional Chinese medicine theory. What did the Ming people say about it? In "The Biography of Danxi Weng", although the author Dai Liang introduced Danxi Weng's medical skills with a lot of pens and ink, the last paragraph still exposed the contempt of the Chinese scholar-official doctors in the industry of doctors: Zhu Danxi learned Confucian classics when he was young, so strictly speaking he is the same type of person as us. Don't look down on him just because he is a doctor.

In short, one sentence: You are not an official, you are...

Therefore, when Guan Yi introduced Huangfu Mi as a doctor, Liu Yong was not particularly enthusiastic.

"Jing'an not only has the ability to be wise in medicine, but also has a very noble family character. He is the great-grandson of Huangfu Yizhen's legitimate lineage."

"Oh, it turns out that it is the descendant of my great Han war god Huangfu Yizhen. No wonder he is good at medical skills!"

"I dare not, I can't stand it if I have any medical skills and masters. However, the idea of ​​preventing smallpox proposed by Da Sima is really amazing!"

"What? Zifeng? Do you have a way to prevent smallpox?"

Of course, there is, although Dr. Jenner has gone through a lot of hardships in researching and promoting the vowel method in history, the technological content here is not high. As long as you understand the theory, it is actually very simple to copy it.

In the late Han and Three Kingdoms era, the population decline due to war was actually limited. The real and biggest murderer was actually a disease. To be more specific, it was a plague (infectious disease).

Looking at the historical books of this period, records of the epidemic and death in the city are vividly remembered.

Because of the backwardness of medical technology and epidemic prevention concepts, the damage caused by ancient plagues is incomparable to modern epidemic diseases. In 2003, I believe modern people have deep memories of SARS. At that time, the panic atmosphere across the country was extremely strong. Beijing, Guangdong, Hong Kong and other severely affected areas were like purgatory. In the end, the World Health Organization's statistics were: a total of 8,422 cases of illness and 919 deaths were killed. On the eve of the demise of the Jin Dynasty, a plague occurred in Kaifeng City. What did the history books at that time say: more than 900,000 people died in various gates, and those who cannot be buried are not counted. In other words, in just Kaifeng, the death toll exceeded one million! Almost the entire city died! It is precisely because of this that the Jin Dynasty no longer had the ability to resist the Mongolian attack and eventually perished.

Therefore, in ancient society, all kinds of fierce infectious diseases were the biggest enemy of population growth!

As a time traveler, Guan Yi certainly knows how to solve the problem of cowpox cultivation. Not only that, Guan Yi has studied some basic biological knowledge. He knows that the best way to solve infectious diseases is not treatment, but prevention.

How to prevent it? Different diseases are different. For various infectious diseases caused by the virus, injecting vaccines to people who are not sick in advance is the most economical and effective way.

The same goes for the same sentence: Shu Han used to be the weakest, and widely promoting various epidemic prevention methods was to seek death. Many technology trees only dared to go to the point at this time. After taking down Yongliang, Guan Yi not only locked agricultural technology points such as potatoes, new rice, and Quyuan Plough. The first skill to click on in medicine is to prevent smallpox from being smallpox.

"Haha, lord, I just have a little idea at the moment. Some human experiments are needed to verify whether this inference is correct."

"Hey, why is this difficult? I am the mastermind. You have to do as many slaves in the Ganling Palace as you want. As long as you can truly prevent smallpox, you will die all the slaves in the palace, and I will not complain at all..."

Why does this sound sad? Well, in this era, the views of the superiors on ordinary people are probably similar to those of looking at ants...

"I thank you for your kindness. However, the slaves in the royal palace are also Han people, so I am not going to use these people. A few days ago, General Pingbei wiped out the remnants of Qifu's tribe in front of him and sent about 500 prisoners of war. I and Mr. Jing'an were going to use these people for experiments."

"Hahaha, kind! Oh, it's really a surprise! If smallpox can be prevented, then my man's population will grow at least half a year! Mr. Jing'an, I'll ask you for everything about this. I didn't say anything. I want people to give them money and money!"

"I would like to thank King Ganling! This matter also needs to be continued guidance from the Grand Sima."

"Hahaha, I dare not take the guidance. Let's study it together and verify it!"

After introducing Huangfu Mi and his recent topics, Guan Yi turned slightly and pointed at Liu Hui: "King, everyone, this is from Donglai, Qingzhou, Liu Hui and Liu Ziyi. Mr. Ziyi is the first mathematician in the world. In my opinion, his achievements in mathematics are not inferior to Zhang Pingzi (Zhang Heng).

"oh?"

There is really nothing to say except "Oh". For a idle prince like Liu Yong, what is mathematics? Zhang Heng is of course famous, but in the minds of Liu Yong and others, the seismometer is just a decoration. What Zhang Heng deserves to respect is that he writes the Han Fu well. But what Guan Yi introduced here is that Liu Hui's math level is not inferior to Zhang Heng. How high is Zhang Heng's math level? I don't know.

"Hui is just a civilian, how dare he be with Mr. Zhang? The Grand Sima Zhesha is here."

"Haha, Mr. Ziyi, don't be humble." Didn't it mean that intellectuals are very arrogant? Why is Liu Hui a little inferior? "This, Mr. Ziyi, what do you have in the trigonometric function that Yi and you mentioned a few days ago?"

"Grand Sima!" As soon as he mentioned academic issues, Liu Hui's expression immediately became vivid: "Grand Sima is really a celestial being. He actually proposed such an unprecedented theory. With this thing, many structures that could only be done by experience will become traceable! I have confidence and improve it within half a year, and then I can use it in practice and guide production as stated by Grand Sima!"

Mathematics, the foundation of natural sciences. Trigonometric functions are a relatively basic thing in the huge discipline of mathematics. But even so, with it, surveying, mapping, architecture, cartography and even the future navigation, there is the most basic theoretical and scientific basis.

"King, my colleagues. Mathematics contains a lot of content, which is closely related to our actual life and even the major national policies. The simplest thing is, if there is no mathematics, houses cannot be built, and royal demeanor cannot be revealed. Without mathematics, land cannot be measured, and taxes cannot be discussed. Without mathematics, the proportion of maps is distorted, and it is impossible to guide marches and wars... Based on this, physics, chemistry, astronomy, geography, etc. are developed. This is the guarantee for the prosperity of our Han Dynasty in the future. The founders of all this are on Mr. Ziyi's shoulders."

After listening to Guan Yi's explanation, the people who had not paid much attention to Liu Hui instantly changed their attitudes. Everyone bowed to Liu Hui repeatedly, which made Liu Hui, who had always been accustomed to being humble, very uncomfortable.

"I have found the best leader in these two subjects in natural sciences. I just want to gain real gains, and I don't know when. Well, it's better to sow seeds than to do nothing."

After calming down, Guan Yi said to everyone: "Everyone, this is almost the case here. Next, hurry up and let's go to Wuzhangyuan!"
Chapter completed!