Starry Sky of the Magic Tower

Because the Midi version of the Microscope is based on magic, unlike Earth’s, it is not a big deal for a Microscope to observe multiple targets at the same time. Even this maze version can do the same thing as Earth’s Dissection Microscope, making the observation sample appear three-dimensional.

However, Fen did not intend to use such a complicated operation. The second sample she prepared to present was the leaf she had ordered the pupils to pick. It was also a simple and neat action. After she skillfully took out the film of the epidermis, she put it on the stage after the same treatment.

With an animal sample and a plant sample, Fen explained the characteristics of the various parts of the cell and the differences between animals and plants. In order to let everyone know the cells more clearly, she also took skin and blood from someone and made an introduction. It makes someone feel like a little white mouse, and this little white mouse also helps to control the screen in class.

There are only one kind of animal and plant cells, of course it is impossible to delay too long. After all, the fascinating Academy is not as pressured by exams as the Earth’s schools, so teachers have to say from time to time in class:’Here is the key point, and the exam will come out in the future’ and so on.

Teaching in Midi is more like giving a briefing on Earth, focusing on the key points, and then outputting a lot of information. This is someone’s new experience after taking a few math courses.

Especially, the people who come to this advanced course are magicians, who have a solid foundation, not the kind of apprentice who has just received enlightenment. As for those who can become a formal magician, memory and understanding are no longer a problem. To put it simply, it’s the kind of feeling that I’m teaching each student. It’s no wonder that teaching in Holy City, if one is not good, he will be disgraced and ousted.

The definition of well-taught is also very simple. Either the new content is shocking or subversive, or the new content is too much for others to receive. Achieving these two points is a good teacher among this group of academic masters.

So after talking about the basic differences and types of animal and plant cells, Fen directly introduced the cells of all parts of the human body. Including the differences and uses of each cell, the use of organs composed of cells, and the use of these organs within the body system.

Then a gratifying thing, the next introduction is to use pre-prepared pictures instead of collecting them on the spot. Someone escaped the fate of being dismembered.

However, although these new knowledge are novel, they have not been able to touch the calm hearts of these old magicians. Everyone’s learning in the classroom was calm and quiet, and they copied their notes quietly. For such a situation, someone can of course guess at first. After all, the fascinated masters all follow the practical route. Too purely academic, it’s hard not to doubt’what is the use of learning this’.

So when there are 30 minutes left in the first life course, the syllabus suggested by Lin will change a small direction. Fern’s ability to control time is also very precise, even if she doesn’t look at her pocket watch-a magic gold pocket watch made by someone a long time ago is still one of Lich’s spoils of war. Can’t get it back, ooh-or the clock, she It is still possible to say one hour and thirty minutes after the beginning of the class:

“The above is the introduction to the cells of various parts of the human body. Including humans, everyone on the fascinating land can be returned as long as they are visible creatures. It is similar to multicellular organisms, that is, each organism is composed of thousands of cells with different functions. Then the question is again, whether there are single-celled organisms? It is the kind of single cell that has activity , Fanyan and other abilities.”

The same did not wait for anyone to answer, and Fern asked again: “Who is there with water?”

Although no one answered , But none of the magicians opened their mouths to chant a spell, and easily used a ring of apprentice-level magic ─ ─ water collection technique, and condensed into one after another water ball in the air.

“Sorry, everyone, I didn’t make it clear. What I need is drinkable spring water or well water, not water made by magic.”

In the air The water ball dissipated silently. One of the magicians took a mouthful of a sheepskin water bag and said, “This is the spring water from the Fairy Spring in the forest. Can this water be used?”

The spring water from the Fairy Spring, Holy City One of Stari’s special products, high-priced products. It is said that long-term drinking will help magician increase the speed of accumulating power. But those who are not suitable, or those who drink too much, will have symptoms of resistance.

“Yes, this is really very good.” Fen took out an empty petri dish, came to the magician who was speaking, and said, “Please pour some on this glass dish. .”

Although the Elf Spring is expensive, the amount of the small dish seems to be less than a mouthful. The magician with the spring water didn’t care about it, so it was half full.

“Okay, everyone, this is the spring water of the Fairy Spring. Let’s take a look at what’s in here.”

Back to the podium, Fen did not respond to the petri dish. Do any treatment of the water in the water and put it directly on the stage of the Microscope. The next operation was performed by herself, not by Lin, who was an assistant. The operation is not just a simple microscopic enlargement, but the analysis function and comparison of the program are turned on. Looking at the constantly updated data on the water mirror screen, Fen said with a smile: “Hehe, the world in the water is really wonderful.”

The analysis speed is very fast, and it will be all in a while. finished. Fen said: “The amount of water in the petri dish is about three to four milliliters, and some different types of microorganisms are detected, most of which are not large. However, the most is this, ──”

At this time The water mirror screen showed a large number of long strips with round ends, no spores, and rod-shaped bacteria.

“──E. coli, which is mainly parasitic in the large intestine of animals. Some strains are beneficial bacteria, which can produce substances needed by the human body and prevent the growth of other pathogenic bacteria. But some strains can It causes food contamination, which in turn causes food poisoning symptoms. Common manifestations include vomiting, abdominal pain, and diarrhea. Except for biological intestines, most of them exist in environments contaminated by feces.”

Fen’s speech When it came out, everyone was in an uproar.

What a joke! This is the fountain of spirits, one of the most popular items in Holy City by magicians. It can be used as a material for making props, or it can be drunk directly. The person who provides the Fairy Spring is not an unknown young man, but a well-known old magician, so he is impossible to take out fakes and will not deliberately deceive people.

The water in the small glass dish was poured out of the sheepskin sac in front of everyone. Although it was through that Lich got her strange machine to check, but in full view, there was an impossible chance to do something.

So what is it that there are poisonous things in the water? It even has something to do with feces!

There has always been only Fern performing in the classroom, and somebody finally spoke. The first question is: “Your Excellency Fanny, did you make a mistake? How could there be something poisoning in the Fairy Spring. I have never heard of anyone dying from drinking the Fairy Spring.” /p>

“What do you think is’poison’? Simply eating something that will kill you? Here I will introduce another concept, lethal dose. Anything is poisonous, but the question is, how much does it take to eat? Put people to death. Some things are highly toxic, even if it is just a little powder, it will cause death if it touches the mouth. But some things are not like this, like chronic poison, it will continue to accumulate in the body. When the cumulative amount When it reaches a certain level, it will cause disease in the human body and die. Although the operating mechanism of the disease is not exactly the same as the poison, there are still places to refer to.”

“Yours What do you mean?”

“These single-celled organisms, I call them bacteria. Bacteria are everywhere, but after ingested into the human body, there may be more or less. In the case of small amounts, the body’s immune system will These disease-causing bacteria are automatically eliminated. But if the amount is too large to be eliminated, they will induce human symptoms, which is the so-called sickness. As for yourself, no one suffers from physical discomfort because of drinking the Spirit Spring Is the situation? Especially the characteristics are similar to what I just said.”

“This…” The magician who asked the question was speechless for a while. Because the symptoms mentioned by Fen just now are actually resistance symptoms of those who are not suitable. In the end, he could only reluctantly argued: “This is all about the meeting?”

Fen was not angry at the distrustful questioning raised by someone and the suspicious look cast by others. Instead, he moved towards Lin nodded and started showing pictures.

The first picture is of a semi-abandoned village with lying dead bodies everywhere. The very few people who seem to be alive also look miserable. The deceased did not die from the disaster of war or demonic beast. There were abscesses of various sizes on his face and body, and the extremities were black.

Only one glance, the people present recognized this disease as the notorious Black Death—the plague.

“This is the record I left when I heard that a plague occurred somewhere during my trip and went to observe. Most people think that this infectious disease is transmitted by rats, and in fact it is the vector of infection. There are two. In addition to mice, there are fleas, but they only serve as bridges for disease transmission. The main pathogen is—”

Lin changed a picture in due course.

“──The Yersinia pestis is similar to the previously displayed Escherichia coli, but the bacteria are longer and have segments, which belong to the diplococcus. Plants grow in large numbers, and herbivores and Insects proliferate in large numbers. Rats multiply because of the increase in food, which exceeds the number that can be controlled by the feeders for rats, and then expands the disaster. The methods to prevent them are rodent prevention, rodent control and Eliminate fleas, don’t get close to the infected people, and avoid continuing to spread the germs.──”

The next picture is another rundown of a village. The same dead people, but unlike the villages that died due to the plague, the faces of the dead here are haggard, as if withered.

“──This is another village, which is infected with a type of plague, which I call cholera. The main features of the infected are diarrhea, dehydration, vomiting, muscle twitching, etc. It causes sunken eye sockets, clammy skin and lack of elasticity. The main way of transmission is through water or food contaminated by the patient’s feces. The method to prevent it is simply to isolate the patient and drink clean water. The main pathogen is- ─”

Change another picture.

“──Vibrio cholerae. The bacterium is short, but has monoflagellate, fimbriae, and some capsules. There is no good treatment. The only thing to pay attention to is to avoid dehydration of the patient. So only I can continue to replenish water and wait for the patients to survive this level.”

After that, Fen continued to display several plague-level infectious diseases, as well as the bacteria in the main lesions. At this time, the faculty who changed the bottom could not sit still!