Future Star Kindergarten has just opened, and there is no major turmoil for the time being.

Except for the heated discussion among the nobles in the first few days, everyone slowly became accustomed to it.

However, Li Kuan found that Gewu Academy actually brought him a surprise.

"Yan clan, this Tong Zhou, if I'm not mistaken, it's a not-so-brilliant teacher in the medical school, right?"

Li Kuan flipped through the articles to be published in the latest issue of Science in his hand and read them with relish.

"If you look at various things through a magnifying glass designed in collaboration with the glass workshop, you will find many interesting things. For example, when we usually use a quill pen to draw a smooth continuous straight line, when you look at it under a magnifying glass, you will find that it is actually very rough, isn't it unexpected? These lines are actually discontinuous dotted lines made up of many small black dots! ”

"Some women who love beauty always want their skin to be smooth, but these smooth-looking skin, when you put it under a magnifying glass, you will find that the pores under the skin are very large, and they are still uneven, which has nothing to do with beauty, and you can even see that there are some black things in the skin that are obviously mixed in it."

Li Kuan didn't expect that the magnifying glass was not fully used in Gewu Academy, but it was carried forward in the medical school first.

Of course, if this article is just a simple introduction to magnifying glass, then he wouldn't find it particularly strange.

After all, reading glasses and myopia glasses are all out, and the magnifying glass itself is not such a difficult thing.

"These things that we are used to in ordinary times all show a different world under the magnifying glass. Well, I'm thinking, when we stitch up the wound, it wasn't disinfected with alcohol before, and the wound will become inflamed nine times out of ten, and once it is inflamed, nine times out of ten it will not be saved. ”

"Why is it that inflammation rarely occurs after alcohol disinfection? Is there something on these wounds that we can't see? Although with the current magnifying glass, it seems that there is nothing to be seen. But we make a bold assumption that if this magnifying glass is ten times or a hundred times more powerful than it is now, would it be possible to see something? ”

"I think the result should be positive. There must be some very small things in this world that our glasses don't usually see. I think that whether the wound is inflamed or the food is spoiled, it should have something to do with these small things that cannot be seen. ”

When Li Kuan read this, he completely decided to add a fire to this teaching, called Tong Zhou, so that everyone's understanding of this world can be raised to a higher level.

"Lord Wang, although this article has not been confirmed, several members of the review committee of Science feel that this article is very imaginative, and maybe it will provide a new treatment idea for our medical school, so they are going to put it in it for publication."

Xu Jingzong saw Li Kuan looking at the article written by Tong Zhou with such interest, and also made some explanations on the side.

"The new issue of Science won't be published until five days later, right?"

"Yes, it's normally five days before it is published."

Although I don't know why Li Kuan asked this question, Xu Jingzong is obviously very familiar with these basic contents.

"In this way, you go and call Tong Zhou over, this king has an idea to verify the 'little things' mentioned in his article, and when the time comes, this article will be changed, and the speculated 'little things' will be directly implemented, and the sensation caused will definitely be different."

Li Kuan felt that in order to make a breakthrough in the development of medicine, things like bacteria and viruses must enter the field of vision of the Medical School of Guanshishan Academy, otherwise no matter how much they toss, they would not be able to make a big name.

……

"I've seen His Royal Highness the King of Chu."

Although Guanshishan Academy is not small, Li Kuan wants to see someone, and it is still very fast.

"Tong Zhou, your article, this king thinks it's very interesting. Did you bring your magnifying glass with you? ”

Li Kuan didn't beat around the bush with Tong Zhou, and went directly to the topic.

"Yes, this is."

Tong Zhou was slightly excited and took out a small wooden box from his arms.

Obviously, he cherished the magnifying glass.

Because the magnifying glass was encased in a delicate sandalwood box, and wrapped in a woolen cloth, for fear of damage.

"How many times can this magnifying glass magnify an object?"

Li Kuan took out the wooden frame from the box, and there was a magnifying glass with a lens in the middle, and turned it curiously.

"His Royal Highness the King of Chu, this magnifying glass can magnify things about twenty times, which is the best lens that the glass workshop has ground so far."

Li Kuan was a little disappointed when he heard this, but he felt that it was normal.

A simple magnifying glass, even in later generations, can generally only be about 30 times larger, and no matter how big it is, it has to be made into a microscope.

Now Tong Zhou can take out a magnifying glass about twenty times larger, which is already a great achievement.

"The lens of this magnifying glass, have you ever thought about fixing it to a frame and then looking through the other lenses to see what's underneath the lens?"

Li Kuan has also used a microscope, and the principle of the microscope is often tested, so he is still a little impressed.

Now that medical schools are going to study bacteria and viruses, the emergence of microscopes is necessary.

Although he can also exchange a microscope directly from the system, the plastic material of those lens holders is not available at all in this era, and it will be very troublesome to explain at that time.

It's better to redeem a technique yourself and directly guide Tong Zhou to study the microscope, which is more reliable.

As for now, it's just a matter of talking to him first.

"Your Royal Highness the King of Chu, I haven't tried this method before, I'll go to a glass workshop when I go back, discuss it with Chen Dali, and see if I can make this kind of magnifying glass."

"Yan, you can ask the academy to cooperate with the glass workshop to set up a special research institute to study how to make the magnifying glass magnification higher. This is of great significance for the development of medical schools. For Gemu Academy, it may also have a unique use. ”

As a very common equipment in scientific experiments, the microscope is naturally indispensable.

"Don't worry, Lord Wang, I'll go to the glass workshop later to finalize this matter."

Xu Jingzong saw that Li Kuan seemed to be very interested in these things, so he was naturally ready to deal with them as soon as possible.

"Back to this article, Tong Zhou, why do you firmly believe that there are still some 'little things' in this world that cannot be seen directly by human eyes?"

Li Kuan pointed to the manuscript in his hand and shook it in front of Tong Zhou.

"Make bold assumptions and be careful to verify. What His Royal Highness the King of Chu said at the lecture at the academy at the beginning, I remember it by heart. There are things in this world that our eyes can't see directly, based on my research on wound inflammation and food decay, and I'm trying to confirm the existence of 'little things'. ”

Tong Zhou is a little wooden, but on the contrary, it makes people feel very stable.

"So what do you have in mind now?"

"Not yet." After Tong Zhougang finished speaking, he hurriedly continued, "But I believe that I will be able to find an idea soon." ”

"If you don't have an idea yet, this king has some ideas. In the case of food decay, according to your meaning, there should be some small things that fall on top of the food, and then multiply there, eventually causing the food to rot. Can we design an experiment where small things in the air can't easily get on top of the food, and then leave it for a few days to see if it will rot? ”

Li Kuan explained the experimental method step by step.

"But there's no way we can keep the little things in the air out of the food? Even if it is sealed in a box, the food will still rot. ”

"That's because there are still 'little things' in the sealed box."

"So how can we make the 'little things' not exist? Otherwise, there would be no way to carry out this experiment. ”

When it came to specific academic issues, Tong Zhou did not treat Li Kuan as a prince.

The conversation between the two of them became faster and faster, so that Xu Jingzong on the side slowly became incomprehensible.

"In this way, don't the laboratories of medical schools have flasks? These flasks are open, so if they are used to hold food, they must be able to easily get the 'little things' in. The king drew another gooseneck flask, so that the mouth of the flask was curved like a gooseneck.

Then we fill both flasks with broth and heat the broth to a boil. According to my understanding, most living things can't survive in a boiling state, so the 'little things' in the flask should have been killed after being treated in this way.

Then we put both types of flasks in a warm room to see if they start to rot and deteriorate at the same time. If, the king is saying, if the broth in the gooseneck bottle has not gone bad for a few days, or even after a month, then does it prove that there are 'little things' in the air that we can't see? ”

In order to let Tong Zhou understand what he meant, Li Kuan was rarely verbose.

"Lord Wang, if the little things in the air move on their own, then even if the broth in the gooseneck bottle is spoiled, it doesn't prove that the 'little things' don't exist."

Tong Zhou said in a tangled manner, "However, if the broth in the two flasks is spoiled, it can't prove the existence of 'little things'." ”

"That's right, if the broth in both flasks goes bad. Then it does not mean that the 'little thing' does not exist, nor does it mean that it exists. But if it's just that the broth in the gooseneck flask hasn't deteriorated, then it basically means that there are unknown 'little things' in the air, and even in the water we drink and the food we eat, there are such 'little things' that are invisible to the eye. ”

Pasteur's gooseneck test itself is not used to prove the existence of bacteria, but only to prove that living things can only originate from living things, and that non-living substances in nature can never spontaneously produce new life at any time.

However, Li Kuan feels that where to prove the existence of 'little things' can also have a certain degree of convincing.

Of course, the best thing to do is to quickly produce the microscope and let everyone see what the 'little things' look like.

Facts speak louder than words, and then everything will not be so entangled.

"Lord Wang, this method is really good, I'll go and prepare for the test now."

After listening to what Li Kuan said, Tong Zhou stood there and thought for a while, then slapped his thigh and applauded loudly.

"Wait a minute, this gooseneck flask, this king already has some ideas, I will draw it directly, and then let you Xu join the army and send someone to take it to the glass workshop, and start firing this gooseneck flask today."

Although the cost of firing such a small batch of gooseneck flasks alone must be high.

If Tong Zhou contacted him by himself, the craftsman in the glass workshop would not necessarily take care of him.

But if Li Kuan arranged it directly, there would be no need to wait for tomorrow, and the gooseneck bottle would appear in Tong Zhou's laboratory.

"Thank you, Your Royal Highness the King of Chu, if you can really prove the existence of 'little things', then ...... Then this discovery is very meaningful. ”

Although Tong Zhou firmly believed that 'little things' existed, he struggled with how to prove him.

That is, the journal "Science" likes to publish some innovative articles, otherwise he may not dare to write about his own idea.

……

After Tong Zhou left, Li Kuan told Xu Jingzong some things alone.

"This Tong Zhou, do you now have your own special laboratory?"

"Huh?" Xu Jingzong was stunned for a moment, he didn't expect Li Kuan to ask this question, "Lord Wang, there is no one yet, and I use the public laboratory of the medical school." Now in the medical school, only Sun Simiao, Lin Ran and Kujou Xingxiang have special laboratories. ”

"Arrange a courtyard for him and let him concentrate on studying this 'little thing', this king has a hunch that the discovery of this 'little thing' will be a thing that will last for a hundred years."

Li Kuan naturally knew that bacteria were inevitable, and now it was just how to prove its existence and how to see it with his own eyes.

"The subordinates will arrange it immediately. Speaking of which, the talents cultivated by Sun Simiao and Lin Ran in the medical school slowly began to grow. Even the female trainees who were just recruited last year also produced talents like Jiujo Xingxiang and Qibi Duoduo, and there is also a person named Chao Qiong, and it is said that Lin Ran's expectations for her are also quite high. ”

"Chao Qiong?"

Li Kuan thought about it and didn't have any impression.

"That's right, this is the daughter of the nest doctor of the Tai Hospital, she has studied medicine since she was a child, and unlike other female students, she can actually come to our medical school to teach. So now it's basically Sun Simiao and Lin Ran who are teaching her by themselves, and the other teachings are basically no longer taught. ”

"Female students have the advantage of female students, and a group of female students can be recruited every year in the future. Select the right seedlings, focus on cultivating, and make a name for yourself. It is best to have the imperial doctor in the Daming Palace in the future, and there are a few more girls. ”