Su He took the junior class students to finish their meal.
He personally took the junior class students back to their dormitories and made their way back to the dormitories.
Su He said with a smile: "I am your teacher, we teachers and students don't need to see anyone outside.
You can make some suggestions to me directly.
What are you planning to do for your homework after class this time? What is the reason for this choice? "
Qin Yun was holding a large glass of milk and drinking milk while walking.
It was only when she came to the Junior Class of the Academy of Sciences that she tasted milk for the first time.
When Qin Yun heard Su He's question, she said straightforwardly: "Teacher, I think the "Nature" book in primary school should be changed.
"Nature" should be changed to "Science" to mainly cultivate primary school students' interest in science.
Teach simple knowledge systems, such as physics, chemistry, and biology.
Now "Nature" is too general and the story lacks focus.
A lot of knowledge is not systematic and ordinary students cannot understand it at all.
Astronomy, geography, and popular science conjectures abound.
Smart people can learn independently and pick out the key points.
People who are not smart cannot understand this lesson at all. "
Su He understood what Qin Yun meant. The elementary school book "Nature" was not systematic.
Children who have not been exposed to science cannot understand it from the shallower to the deeper.
Others just taught according to the textbook, and most students did not even finish the first volume of "Nature".
Qin Yun has studied the entire book by himself.
Her suggestions are more representative.
Su He also knew about this problem. He and Tian Jiapeng had sorted out the knowledge system and were preparing to correct the elementary school science textbooks.
Not only the book "Nature", but also "Mathematics" need to be modified to make the overall mathematical system from shallow to deep.
Primary school mathematics also pays more attention to practicality, focusing on the four arithmetic operations and abacus.
Su He found that most people graduated from elementary school.
Qinwangfu provides free primary education, covering almost all children of school age.
When Su He was most nervous about money, he did not cut back on education expenses.
These students who have received primary school education will be his most die-hard supporters.
The Qin Palace did not have the ability to provide a comprehensive and universal university education.
In the university envisioned by Su He, students are divided into two parts: talented poor children study for free, and ordinary rich children spend a lot of money to study.
If the university is well run, the tuition fees received may be able to make up for the large losses of the primary school.
Su He smiled and praised:
"Qin Yun said it very well. The teacher is already preparing to change the primary school textbooks.
You have an important task next, to help me move from the shallower to the deeper.
Compile a primary school textbook "Science" that primary school students can understand.
The primary school "Nature" eliminates the theoretical formula part and focuses on science popularization. "
Encouraged by Su He's eyes, the students in the youth class put forward many suggestions.
Students have not entered society, most of them have naive ideas, are too young and have little experience.
Most of their suggestions are based on things they have experienced.
The students put forward some excellent suggestions, and Su He accepted them humbly.
For some suggestions that could not be realized, Su He also pointed out the problems and broadened the horizons of these students.
The dormitory was not far from the cafeteria, and Su He arrived quickly with the students.
Dormitories for students are not just a place to stay.
There are also small laboratories and small processing workshops in the dormitory.
Allow students to do it themselves, do some less dangerous experiments, and process some simple items.
Su He placed some high-quality lenses he brought back today in the small laboratory in the dormitory.
He had just asked these students at the dinner table what kind of optical equipment they wanted to make.
Many of them are interested in telescopes and microscopes.
Gao Xiang wants to build an astronomical telescope.
He wanted to see if there was Chang'e on the moon and the Golden Crow on the sun.
What does Ying Huo Xing look like? Why was he considered a disaster star when he was born on the day Ying Huo Shouxin was born, and was abandoned by his biological parents?
If he hadn't met kind-hearted people, he would have died at a young age.
Qin Yun wants to make a simple microscope.
When she was in elementary school, she heard that the cause of the plague was something called a germ.
When she was running away from famine as a child, she saw with her own eyes the horrors of the plague.
She wants to learn knowledge and solve these diseases.
After attending the junior class of the Academy of Sciences, she learned that there are many types of germs.
There are three major categories: viruses, bacteria, and fungi.
The authenticity of the microorganism has been verified through cowpox vaccine and snake-neck bottle experiments.
But how exactly do bacteria cause disease? Can a cure for the plague be found?
The current understanding of microorganisms is still very shallow.
She is determined to solve the disease-causing bacteria and protect people from the plague.
Su He is very satisfied with the students' choices. Most students have goals in life.
Tian Jiapeng is preparing to manufacture astronomical telescopes and microscopes on a large scale.
Astronomy and biology will definitely take advantage of this opportunity to flourish, and students will catch up with the good times.
Most of them will become pioneers in a certain field.
Among the thirty-six classmates, the one with the most unique ideas is Liu Dongliang.
Liu Dongliang heard Su He say that people can see the world because they perceive light.
He wanted to leave the light behind so that people could always see the world as it was then.
Su He fully supports Liu Dongliang's idea.
If Liu Dongliang's idea can be realized, this will be a camera.
Su He didn't understand the technology used by ancient cameras, but he knew the imaging principle of cameras, which was also closely related to lenses.
As long as he works hard and lives longer, he should be able to see the emergence of cameras in his lifetime.
…………………………
It was getting dark, and Tian Jiapeng came to the junior class dormitory area to look for Su He.
He came over and said excitedly: "Your Highness King Qin, I have proved with facts that my calculations are not wrong.
Some time ago, astronomical telescopes and microscopes processed with crystal lenses had a problem of blurring the scene and making them unusable.
It is the effect of the material of the crystal itself. Their crystals have too many impurities.
It is used to make a telescope with a simple lens set such as a telescope, which has not had much impact.
When making astronomical telescopes and microscopes with complex lens groups, impure materials will have a great impact on the accuracy of the equipment. "
When Su He heard Tian Jiapeng's words, he felt relieved.
Material problems have always plagued the progress of scientific research, but there are solutions to them.
He believed that Tian Jiapeng's mathematical skills would not make such a simple calculation wrong.
The assembly of astronomical telescopes and microscopes some time ago failed.
In addition to material problems, the most likely possibility is that there is a major error in the theory of lens imaging.
If there are errors in the theory, no matter how much trial and error you try, it will be in vain.
The worst outcome did not happen. The theory that Su He and Tian Jiapeng jointly researched did not make any mistakes.
“The role of glass is still very important, especially in the field of scientific research.
This assembly is successful. How many telescopes and microscopes did you make? "
Tian Jiapeng said with a happy face: "Your Highness, King Qin, we have worked hard all afternoon.
Twelve microscopes, twenty-six astronomical telescopes, and ninety-eight conventional telescopes have been manufactured.
Even the most difficult microscope to assemble will be completely assembled in a day or two. "
Su He was very satisfied when he heard the number of astronomical telescopes and microscopes.
Tian Jiapeng saw Su He's smile, and he continued to say proudly: "Your Highness, King Qin, there is absolutely no problem with my theory.
Both telescopes and microscopes can meet the expected design requirements.
Conventional telescopes are replaced with glass lenses to make them clearer.
The telescope adopts a binocular structure and can see farther and more accurately than a single-cylinder telescope.
Astronomical telescopes can already clearly see the scene on the moon.
There is no Chang'e, no fairy palace, not even a weed there, just big and small pits.
I have tested the microscope and it can already see small bugs in the water. These should be the microorganisms His Highness King Qin mentioned.
His Highness the King of Qin ordered the soldiers to drink hot water. It turns out it really works!
Who could have expected that there are so many little bugs invisible to the human eye in the clear and clean water. "
Su He looked at Tian Jiapeng's face, with an expression of excitement and fear.
Only when you see microorganisms with your own eyes can you realize how scary these things are.
"Dapeng, go back and arrange these appliances now.
The Academy of Sciences retained five astronomical telescopes and sent the remaining telescopes to the observatory.
The Academy of Sciences will keep five microscopes and send five microscopes to Hanzhong Hospital. I will take away the remaining two microscopes.
I then took the students in the junior class to experience the effects of the new telescope and microscope. "
When Tian Jiapeng heard Su He's instructions, he turned and left.
Su He couldn't wait to see the effects of using glass lenses on telescopes and microscopes.
The students heard the two of them talking.
Know that the astronomical telescope and microscope you just learned about have been made.
Qin Yun said in surprise: "The teacher just finished explaining the principles of telescopes and microscopes.
Telescopes and microscopes were made so quickly.
I thought I could be the first person to make a microscope.
Can the teacher take us to see the astronomical telescope and microscope? "
Su He saw Qin Yun's expectant look.
He touched Qin Yun's head and said with a smile: "Qin Yun, if the teacher can teach you, it means that this technical theory has matured.
As long as the materials and processing technology meet the requirements, it is not too difficult to go from theory to reality. "
Su He turned to look at the other students and ordered:
"Students, the teacher agrees to Qin Yun's request.
Let me show you the telescope and microscope. "
Gao Xiang whispered: "Teacher, what about our homework after class?"
"Your after-school homework still has at least half a month left.
Teachers are very busy during this period, and some tasks also require your assistance.
The content of the next lesson is related to these things.
Your after-school homework can be handed in before the next class. "
The students in the junior class understood Su He very well when they heard that the next class would have to wait for more than half a month.
Students all know that teachers are usually too busy. It is already very difficult to spare half a day to teach them. As a human being, you must be content.
Su He took the students from the juvenile class to a spacious laboratory.
There are three exquisite utensils placed here.
The smallest one is the binoculars, which are also the simplest in structure among the three instruments.
Beside the window sill, there are five instruments more than two meters long, which are astronomical telescopes.
You can see a thick lens in front of the astronomical telescope.
The overall shape is segment by segment, very thick at the front and getting smaller towards the back.
In the end there is only a small hole left, which is the eyepiece of the astronomical telescope.
It can only accommodate one eye.
This is the astronomical telescope designed by Tian Jiapeng. Its lens group is magnified and allows people to see the craters on the moon.
Placed on the table is a very delicate instrument, which is the world's first microscope.
It has three objective lenses and three eyepieces, which can adjust different magnifications.
Theoretically the maximum magnification allows one to see cells.
Tian Jiapeng used a microscope to see microorganisms in water.
In this room, there are several people who are adjusting astronomical telescopes and microscopes.
When they saw Su He enter the house, they bowed immediately.
"Meet His Highness the King of Qin."
"Hello teacher."
Su He looked at them and said happily: "Get up quickly, you have made a great contribution this time."
He turned to the junior class students behind him and said, "Today the teacher will take you to experience telescopes and microscopes.
Let you have a deeper understanding of what you learned today. "
After Su He finished speaking, he handed out binoculars to every student in the junior class.
"Let's stand by the window and look into the distance with telescopes."
Su He taught them how to use telescopes.
The telescope lens set is very simple and can only be adjusted slightly to make the scene you see clearer.
Qin Yun picked up the telescope and followed Su He's instructions, holding the telescope to his eyes with both hands.
"Teacher, why can't I see anything?"
Qin Yun heard the exclamations from the classmates next to him.
She used the telescope but could not see anything, only a dark mass.
I was very anxious and could only ask the teacher for help.
Su He heard Qin Yun's voice and looked at the telescope in Qin Yun's hand.
"Qin Yun, you didn't unscrew the cover on the front of the telescope."
After Su He finished speaking, he helped Qin Yun unscrew the cover in front of the telescope.
Qin Yun picked up the telescope again. It was already dark now, and most houses in Hanzhong City were lit with lights.
She could see the lights of thousands of houses.
"I saw my house, Huahua was squatting on the roof of my house.
Huahua is my big orange cat.
The telescope is so powerful. The Academy of Sciences is separated from my house by the Han River, and I can see the roof of my house. "
Su He personally experienced the effect of the telescope.
Glass lenses are indeed more effective than crystal lenses.
Transparent and impurity-free crystal is too difficult to find, but transparent and impurity-free glass is very easy to make.
The telescope can now see far and clearly.
Especially for plain battles, a telescope combined with a hot air balloon will be a great weapon.
Su He had long wanted to set it up. Long distance rapid information transmission system.
With this kind of telescope that can see far and very clearly, formal preparations can be made.
This system uses command flags during the day and traffic lanterns at night for simple information transmission.
The scene in the distance seen through the telescope was too blurry before. I could only see the movement of the army, but could not see the specific things clearly.
It's useless to build this kind of system too close, it's not as fast as riding a horse.
"Students, you have experienced telescopes. Let's come in batches to experience astronomical telescopes."
Su He and the others were using the telescope.
Tian Jiapeng and Lu Lingxiao have already adjusted the astronomical telescope by the window.
Su He took students from the junior class, in groups of five, to let them experience the astronomical telescope.
The astronomical telescope has been adjusted and is pointed at the moon. Students can see the scene on the moon directly by looking into the eyepiece.
Lu Lingxiao stood in front of Su He, looking at the second-term junior class classmates, he said with envy:
"Teacher, the junior students are so lucky. They can enjoy your long-term teaching."
Lu Lingxiao is a son of a soldier and has a good academic talent.
When he entered the first junior class of the Academy of Sciences, his chosen research direction was astrophysics.
Su He talked about the idea of longitude and latitude in class.
There is also a sextant, a device that allows you to know your position at any time based on the position of celestial bodies.
Lu Lingxiao's father was a pirate and was recruited by Su He who was in urgent need of water warfare talents. He now serves in the Yangtze River Navy.
He was very interested in all things sailing.
Now that he doesn't have access to the ocean, he's even more interested in space.
Lu Lingxiao was appointed director of the Observatory by Su He.
The observatory is under the jurisdiction of the Academy of Sciences. Its main function is to observe the movement of celestial bodies and formulate complete longitude and latitude.
Su He knew the concept of longitude and latitude in his previous life, but if he was asked to name the longitude and latitude of a certain city, he couldn't come up with one.
He can only come up with the concept of latitude and longitude and recreate their own latitude and longitude.
There is no dispute that the starting point of latitude is the equator.
The starting point of longitude has no recognized reference point and can be set arbitrarily.
Su He made the location of Hanzhong Observatory the starting point.
Su He ordered Lu Lingxiao, saying:
"Ling Xiao.
The Academy of Sciences has five astronomical telescopes left here. I have already helped Tian Jiapeng and handed over the remaining astronomical telescopes to the observatory.
Tian Jiapeng is compiling a new calendar, which requires accurate movement patterns of the sun and the earth.
Your observatory must cooperate well with Tian Jiapeng's work. "
Lu Lingxiao replied respectfully: "Teacher, our observatory will definitely cooperate with Secretary Tian Jiapeng."
“Lingxiao, the observatory is open to the public free of charge.
Let everyone see what space really looks like.
People with broad horizons will not be fooled by the theory of divine induction and religion. "
Lu Lingxiao nodded and said, "Okay, teacher.
We have specially opened a viewing area to allow people to observe space for free. "
Su He finished explaining to Lu Lingxiao about the observatory.
He looked at the students beside the window sill. Most of them had already experienced astronomical telescopes.
Su He stepped forward and asked these students.
"What do you think after watching the astronomical telescope?"
Liu Dongliang said with a disappointed look on his face: "Teacher, are all the contents in the astronomical telescope true?"
Su He looked at Liu Dongliang's expression and said in a serious tone: "Is the content in the astronomical telescope true?
You should use the knowledge you have learned to judge.
Not everything I say is correct.
You need to use the knowledge you have learned to verify whether these things are correct.
From the look on your face, you should have the answer in your mind. "
"Teacher, I was wrong."
Liu Dongliang lowered his head, not daring to look directly at Su He.
He learned about optics on his own.
We know that astronomical telescopes only use lens groups to change the image of light and magnify the scenery.
If the lens group is configured incorrectly, the object may be turned upside down, left, and right.
But it will never appear that a person seen through an astronomical telescope is actually a cat.
There will be no difference in the physical form of things observed through a telescope and those observed up close.
He just couldn't believe that the moon was so desolate.
The entire moon surface is bare and full of large and small craters.
Su He looked at Liu Dongliang's performance. His imagination was broken by reality, and his three views were subverted.
This requires him to step out on his own. If he wants to become a scientist, he must have a good mentality.
Now is the period of scientific enlightenment, and many things that were previously considered common sense will gradually be broken.
They are still very young and can reshape their outlook on life.
The views of those craftsmen in the Academy of Sciences have been finalized, and many of them are not suitable for theoretical work.
Qin Yun left the astronomical telescope still unfinished.
“Teacher, it’s so disappointing that the moon looks like this.
There is no Chang'e, no gods, and no moon palace on the moon.
It doesn't even have a laurel tree. "
Gao Xiang was one of the last students to use an astronomical telescope.
He had his own plans and didn't want to watch the moon.
While Su He was chatting with other classmates, Gao Xiang turned the astronomical telescope.
Use it to find other celestial objects in the sky.
"Mars is so red, no wonder it's called Yinghuo."
When Gao Xiang saw the appearance of Mars in the astronomical telescope, he couldn't help but exclaimed.
He then covered his mouth and looked at Su He with fear.
Su He looked at Gao Xiang's actions, but he did not criticize Gao Xiang.
He just moved the astronomical telescope secretly, and Su He also noticed his little move.
You can use an astronomical telescope to find the location of Mars yourself.
Gao Xiang has certain talents in the field of astronomy.
Interest is the best teacher. Gao Xiang was interested in astronomy, and Su He trained him in this aspect.
"Gao Xiang, you did a great job. You were able to find Mars by yourself. You can do this only because you have a certain understanding of space."
Gao Xiang smiled again when he heard Su He's compliment.
“Students, let’s experience the microscope next.
The teacher takes you into the microscopic world. "
After Su He finished speaking, he started to operate the microscope himself.
Turn on three microscopes and select a drop of water, thinly sliced pork and cabbage leaves respectively.
Su He mounted these things on glass slides.
He adjusted the microscope so that it was in the clearest state.
"Everyone queues up to take a look at the microscopic world."
The students in the juvenile class, under the guidance of Su He, began to look at these three objects.
Qin Yun said in surprise: "Teacher, there are small insects in the water.
Pork and cabbage leaves are also made up of small bugs.
Are we humans also made up of these little bugs? "
Su He explained with a smile: “Except for a few microorganisms such as viruses, other living things are composed of cells.
The little bugs in the water are single-celled organisms.
Humans and animals and plants are multicellular organisms. "
Su He gave students some scientific knowledge about biology.
After all the students had experienced it, he sent them back to the dormitory.
He returned to the Prince of Qin's Mansion with two microscopes, which were gifts to Wang Wenjun.
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