parentshiftbook Chapter 536: Microscopy Technology That Was Easily Pointed Out [Please Subscribe, Please Subscribe I
Chapter 536: Microscopy Technology That Was Easily Pointed Out [Please Subscribe, Please Subscribe I
Seeing the shocked and disbelieving expressions of the famous doctors below, Yan Changqing did not intend to explain too much.
No matter how much you say, it is better to let them verify and verify it by themselves, which will make them more convinced.
After all the famous doctors below calmed down again, Yan Changqing said calmly:
"For the specific development methods of allicin powder and allicin liquid, as well as related verification, you can find out about it from the relevant doctors at the Taiyuan Hospital.
"In the past two days, you should first get to know the general situation of Wanmin Medical College. If you have any reasonable needs, you can also talk to the two vice presidents Dai Sigong and Wang Lu, and they will help you solve it.
"If they can't solve it, they will report it to me again and I will solve it for you!!!"
Immediately, Yan Changqing turned to look at Dai Sigong, the envoy of Taiyuan Hospital, who was also the vice president of Wanmin Medical College, and Wang Lu, the hospital judge of Taiyuan Medical College, and said gently:
"Can you please arrange for them to stay temporarily at the corresponding lecturer's house "Ling Ling Ling" hospital later, and then take them to visit and familiarize themselves with the surrounding environment of Wanmin Medical College and Tai Hospital."
"During this period, if they have any reasonable needs and need to mobilize any resources from Wanmin Medical College to complete them, both of them can do so at will without having to ask me again.
"If you can't solve the problem even with the authority of two people, then report it to me and I will see how to solve it!!!"
Upon hearing Yan Changqing's arrangement, Zai Sigong and Wang Lu both nodded respectfully and said:
"Don't worry, Dean, we will try our best to arrange them!!!"
After seeing Dai Sigong and Wang Lu agree, Yan Changqing nodded with satisfaction, then looked at the famous doctors below, stood up and gave a slight salute:
"I have other things to attend to, so I will stop talking to you today. I ask for your forgiveness."
All the famous doctors below jumped up immediately, sideways avoiding Yan Changqing's salute, and at the same time said quickly:
"Dean, please go ahead and get acquainted with yourself!!!"
"Thank you for your explanation, Mr. Dean. I'm sorry to trouble you, Mr. Dean!!!"
"The dean is too polite, I should be the one to ask the dean for forgiveness!!!"
Although from the beginning to the present, Yan Changqing, a doctor from Saint Qibo, has never put on any pretense of being a Saint.
Even famous doctors like them are treated with great courtesy.
But this does not mean that they will get carried away because of this. On the contrary, they will only admire Saint Qibo's etiquette cultivation more and at the same time, always remind themselves not to be arrogant and arrogant.
For example, Saint Qi Bo gave them a slight gift just out of his own etiquette and cultivation.
That doesn't mean that they, famous doctors without clear official positions, can afford it.
Even if they later join the list of medical lecturers at Wanmin Medical College and have official status, they still cannot afford the simplest gift from Saint Qibo.
Because in the whole world, the only person in the world who is truly qualified to receive the gift of Saint Qi Bo, apart from the current emperor, is the Shennong family who is also a concubine.
Others, even important ministers of the country such as the Six Ministries, Seven Ministers and Eight Kingdom Dukes, strictly speaking, are not qualified to receive the Saint's gift!!!
This is the noble status of Saint!!!
Then Yan Changqing looked at Zhou Wang Zhu Ji on the other side, indicating with his eyes that he should leave with him and go to Zhu Yuanzhang to discuss something.
After Yan Changqing and Zhou Wang Zhu Ru left, Dai Sigong and Wang Lu, who were also the vice presidents of Wanmin Medical College, were also responsible for arranging related matters for many famous doctors.
After arranging the accommodation for the famous doctors, Dai Sigong, the envoy of the Taiyuan Hospital, and Wang Lu, the judge of the Taiyuan Hospital, began to take the famous doctors to visit Wanmin Medical College.
"This is the microscope laboratory of Wanmin Medical College!!!"
Dai Sigong led a group of famous doctors into the microscope laboratory and introduced.
Currently, there are two most famous research laboratories in Wanmin Medical College.
One of them is the microscope laboratory in front of you!!!
A group of famous doctors looked at the dozen or so imperial doctors who had their heads lowered and were looking at a strange thing with their other eyes closed in the microscope laboratory, and asked curiously:
“I wonder what they are doing?!”
Wang Lu on the other side smiled slightly and said:
"But still remember what the dean said about bacteria before?!!"
"Bacteria are as small as dust and difficult to see with the naked eye!!!"
"So we need to use some equipment that can amplify those bacteria so that we can observe the existence of those bacteria!!!"
"The equipment they are using now is the microscope invented by the dean. Through the microscope, tiny organisms such as bacteria can be magnified dozens to hundreds of times!!!"
After using the new technology of glass, it can be said that it is basically no difficulty to use a microscope!!!
First of all, glass beads are a special convex lens, which itself has a magnifying effect.
Secondly, the smaller the diameter of the glass bead, the higher its magnification.
However, generally a glass bead with a diameter about the same size as your thumb will have a magnification of about ten times.
And if it is to be used as a microscope, its magnification needs to be hundreds of times, or even thousands of times!!!
Therefore, ordinary glass beads with the diameter of a thumb cannot be used as a microscope...
But if the diameter of a glass bead can be reduced to two millimeters, its magnification can be as high as two or three hundred times!!!
In fact, the earliest single microscope made by Leeuwenhoek, the father of microscopy, adopted this principle.
He ground a piece of lens into a small lens, or small glass bead, with a diameter of only three millimeters.
Then this extremely small glass bead is installed as a single lens in a small hole on a brass plate. The specimen is placed on the protruding sharp point in front of the lens. By turning two screws, the position and focus can be adjusted.
Finally, when the eye is close to the lens, the magnified specimen can be observed.
Such a single microscope can magnify specimens up to 275 times!!!
The whole process, except for the slightly troublesome part of grinding the lenses into small glass beads with a diameter of only two to three millimeters, is basically not difficult at all. "Tonga doesn't have much technical content to speak of.
At least Leeuwenhoek could grind lenses and polish a microscope with his bare hands, then Ming craftsmen must be able to do the same thing.
So after Yan Changqing explained his needs clearly to the Ming Dynasty glass craftsmen, he got the world's first true single microscope the next day!!!
Even the glass craftsmen of the Ming Dynasty later felt that polishing the lenses into small glass beads with a diameter of two or three millimeters was still too troublesome.
So he went a step further and directly fired small glass beads with a diameter of two or three millimeters.
And this improvement process is also extremely simple. Just find a 0.9 piece of palm-sized glass and smash it.
Then select a relatively thin piece of glass, about the size of a fingernail, and pick it up with long tweezers.
Then put it under the stove to burn, the glass will be heated and melted, and under the action of gravity and tension, it will automatically roll into a small glass ball.
After it cools naturally, a microscope lens that meets the requirements and has a diameter of several millimeters is directly fired.
Compared with grinding a palm-sized lens into small glass beads of two or three millimeters, the efficiency is increased by dozens or hundreds of times.
So within a few days, there were three or five such single microscopes per person in the entire imperial hospital.
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