Chen Dali is an old craftsman in the glass workshop.

As the only seventh-level worker in the glass workshop, Chen Dali has his own unique skills in firing glass or grinding lenses.

This kind of thing, sometimes even if it is taught to you in 1510, you can't learn it.

Especially for ground glass, the most test is the feel and vision.

This can't be simply put into words.

Therefore, the top glasses and magnifying glasses produced by the glass workshop are all polished by Chen Dali himself.

"Lord Wang, this lens has been polished according to the requirements you said, and the carpenter has also made the frame of this microscope, as long as you install the lens, you will know what the effect is."

Chen Dali saw that Li Kuan had been squatting in the glass workshop in person for the past two days, and he also felt a trace of pressure.

"Put them on the frames and see how they look."

In order to improve the success of microscope production, Li Kuan spent a lot of points from the system to exchange for a microscope and put it in his own dedicated laboratory.

Then, according to the structure of this microscope, the drawings were completed, and the skilled carpenter was arranged to make the basic frame.

Even the lens barrel and the helical focus adjustment gadgets have been installed in advance.

"Lord Wang, just put the two lenses together like this, and you can make the magnifying glass ...... Has the magnification of a microscope become hundreds or thousands? ”

Tong Zhou stood aside and asked with great confidence.

"A magnifying glass is just a lens, and basically the best is more than 20 times better. On the other hand, a microscope has two lenses, an eyepiece and an objective lens, which are combined to view together, which is equivalent to the magnification of the multiplication of the two lenses. So the microscope that we're making now can be magnified about 500 times. In the future, if the magnification of a single lens is increased, it is not impossible to increase the magnification of the microscope to 1,000 times. ”

Li Kuan is still willing to explain its working principle to Tong Zhou, the most important user of the future microscope.

In fact, its principle is not as complicated as imagined.

It can even be said that the principle is very simple, and it is rare to make excellent lenses.

In later generations, there is a saying that online games ruin a lifetime, and SLR is poor for three generations.

Although there is an element of joke in this, it also shows the high cost of high-end lenses.

Why are premium lenses so expensive?

Because the best lenses are hand-polished by top craftsmen.

For example, this telescope and microscope, as long as the lens is powerful enough, other things can be tossed to produce an excellent product.

"Magnified to five hundred, a thousand? That...... Can our microbes be directly observed through this microscope? ”

Tong Zhou looked at Li Kuan expectantly.

"Why did I name this thing a microscope? It's because it's a mirror that shows microbes. Do you think you can see the microorganism you are talking about through this microscope? ”

Li Kuan looked at Tong Zhou with a smile.

This guy is a bit of a loser right now.

But it's normal.

In Chang'an City, the impurities of Guanshishan Academy and Science have now been discussed as a joke after dinner.

The word microbiology has become a "hot word" in Chang'an City in recent days.

Even some people who can't read big characters may have heard of this thing.

As the initiator, Tong Zhou's mental quality is not as good as Li Kuan's, although he firmly believes in his own speculation, but after all, he is not like Li Kuan who has God's vision.

So the pressure on everybody is completely different.

"Lord Wang, the eyepiece and objective lens have been installed, and this reflector is also installed on the lens base. Would you like to give it a try and see how it goes? ”

Although Chen Dali wanted to see if the effect of this microscope was as powerful as Li Kuan said.

However, at the critical moment, he still figured out who was the boss.

"Bring me some of the beakers that are for sleeping, and let's see what's in the clear-looking water."

Li Kuan did not hesitate to prevent the microscope from being in front of the table, with one eye closed and the other eye facing the objective, and then began to operate the microscope.

Since the lens holder is made of wood, and even the knobs for the spiral adjustment are made of wood, this microscope is relatively less sensitive to operate.

However, Li Kuan quickly found his senses.

After all, he was already able to use the microscope exchanged in the system very skillfully.

Now it's just a knockoff, and you can master it with a little operation.

"Lord Wang, the water is here."

Chen Dali personally placed the beaker filled with clean water next to the microscope.

Li Kuan raised his head, picked up a piece of glass, dripped a drop of water on it, and put it on the microscope.

Then, when he used the microscope again and adjusted the focus, a different picture appeared in front of him.

"Tong Zhou, come and see, what is the difference between the world in this drop of water, is it so clear, clean and calm as it looks to the naked eye."

Li Kuan didn't speak, but directly asked Tong Zhou to come over and operate the microscope.

Tong Zhou, who has long coveted this microscope, will not carry forward any tradition of respecting the old and loving the young at this time.

He didn't see Chen Dali's curious eyes, and sat directly in the place where Li Kuan was sitting just now.

I saw him take a deep breath, and then follow Li Kuan's example just now, close one left eye, and lean his right eye against the eyepiece.

"Ahh

Tong Zhou just looked at the camera, and immediately lifted it up like an electric shock.

Then he closed his eyes hard and opened them again.

Then re-probe into the microscope.

It's the same in the footage.

It's not an illusion!

These little things that are constantly swimming are the microorganisms that His Royal Highness the King of Chu said, right?

It turns out that there are so many microorganisms in a drop of water.

Tong Zhou stared at the camera intently, as if he wanted to keep everything in his heart.

"Director Tong, can you let me also take a look at the effect of this microscope? That's how I can find a way to improve. ”

Chen Dali didn't hold back his curiosity after all.

After seeing Tong Zhou staring at the microscope intently for five minutes and not getting up, he urged.

"Lord Wang, I think this microscope is really amazing. Through it, you can really see microorganisms, and to put it mildly, it is the greatest invention of Zhenguan in the past 15 years. ”

Tong Zhou reluctantly gave up his position to Chen Dali, and then talked to Li Kuan.

"Now the magnification of this microscope is not high enough, and the clarity of the microorganisms seen is still not enough. If you can make the multiplier a little bit bigger and sharper a little bit higher, then you will be able to discover a lot more.

In addition, this microscope can be modified to see things such as water droplets, wood chips, animal hair, etc., and the requirements for the microscope are also different. Some things have poor light transmittance, and you have to think of a way to see them clearly. In short, there should still be a lot of room for improvement in this microscope. ”

Li Kuan had just used the microscope that the system had exchanged for yesterday, and now he used the copycat version of the microscope, so naturally he couldn't feel any joy and surprise.

However, his performance made Tong Zhou even more admired.

His Royal Highness the King of Chu is really humble.

After inventing such a great microscope, I was not complacent at all, but put forward so many suggestions for improvement in a short period of time.

I still have to learn more from His Royal Highness the King of Chu, and I feel that it is great if I can't put forward a theory of microorganisms.

Tong Zhou stared at Li Kuan with sparkling eyes.

made Li Kuan can't help but hold back.

I'm interested in your talent.

But I'm not interested in your people.

……

In the Xuanzheng Palace, Li Shimin was immersed in a bunch of twists and turns.

"Your Majesty, His Royal Highness the King of Chu asks to see you."

Li Zhong gritted his teeth and interrupted Li Shimin, who was busy.

In the past few days, Li Zhong has been busy enough.

There were so many words talking about microorganisms in Chang'an City all at once, and Baiqi Si naturally had to pay close attention.

Originally, Li Zhong thought that "Datang Daily" wanted you to have a debate with other newspapers, but there was no movement at all.

Even Li Kuan's people haven't been on the road in Chang'an City for several days.

Now that he suddenly came to see Li Shimin, Li Zhong felt that it would definitely not be because he was full of food and had nothing to do, so he came to chat with Li Shimin.

"Kuan'er is here? Then let him in. ”

Li Shimin didn't know very well why Li Kuan came to him today, but he was still willing to spare a little time to come out.

"Your Majesty, Weichen has brought you an artifact."

After Li Kuan came to Li Shimin's side, he didn't bother to salute pretendingly, and directly threw out a fierce material.

"Huh?"

Sure enough, Li Shimin, who had been keeping his head down. He immediately raised his head and looked at Li Kuan.

"What artifact?"

"His Royal Highness the King of Chu, let me help."

Li Zhong saw that Li Kuan was about to open a box in his arms, and immediately took the initiative to help.

Although Li Kuan considered it from any aspect, there was no possibility of assassinating Li Shimin.

But for what might appear in the box, Li Zhong still vigilantly kept an eye on it.

Don't be afraid of 10,000, just in case.

Li Zhong's current role is destined not to allow any possible danger to appear.

"Then there is the commander of Lao Li."

Li Kuan didn't care, put down the box, and asked Li Zhong to open it.

However, Li Zhong was obviously going to be disappointed.

When he opened the chest, he found that there was no artifact inside.

A piece of wood was simply placed in a box, with some cotton next to it, as if to prevent a collision.

As for dangerous goods such as swords, not to mention, there must not even be a shadow.

"Kuan'er, is this the artifact you are talking about?"

At this time, Li Shimin had already gotten up and stood beside him.

When I saw the contents of the box that day, I couldn't help but show a disappointed expression.

Sometimes, the greater the hope, the greater the disappointment.

"Your Majesty, don't be impatient, if it's an artifact or not, you'll know in a moment."

Li Kuan took the microscope out of the box without hurrying.

Then it was directly placed on Li Shimin's royal table.

After seeing a cup of tea next to him, Li Kuan directly put his finger into the teacup, dipped a drop of water and put it on the glass piece.

This move, Li Zhong's eyes jumped.

Even Li Shimin frowned slowly, but he still couldn't help but speak.

This guy, haven't I criticized him for a long time, and I've started to let myself go?

Li Shimin couldn't help but glared at Li Kuan.

However, Li Kuan, who was busy debugging the microscope, didn't notice the expressions of Li Shimin and Li Zhong at all.

"Okay, Your Majesty, you can look with your eyes to see what's in this drop of tea, as I did just now."

Soon, Li Kuan adjusted the microscope to the best viewing field, and then gave up the position to Li Shimin.

Seeing Li Kuan pretending to be a ghost there, Li Shimin didn't understand what he wanted to do.

However, at this time, he couldn't help but speak, and directly used the microscope like Li Kuan.

"Huh? Where do these little bugs come from? ”

Li Shimin saw the small insects swimming in his field of vision, and couldn't help but ask.

"Your Majesty, these little insects are from the drop of tea just now."

"Huh? How can there be small insects in the tea, His Royal Highness the King of Chu, you don't want to spew blood. ”

Hearing Li Kuan's words, Li Zhong on the side was anxious.

This is like blaming himself for not doing a good job of protection, so that tea full of insects appeared on Li Shimin's table.

The most important thing is that Li Shimin drank half of the tea.

"Could this be the microbes you talked about earlier? Is there really so much in this tea? ”

Li Shimin's brain is very smart, thinking of the recent movements, he immediately guessed seventy-seven-eighty-eight.

It turns out that my understanding of the world is so little.

"That's right, Your Majesty. This is the microbe. Normally, the tea is boiled, and the microorganisms are basically killed. But when Wechen put it on the glass, it brought a lot of invisible microorganisms, so you can now see a lot of small insects through the microscope. ”

"Microscope? Is this the magnifying glass you said you were working on? ”

Li Shimin looked up and down the microscope in front of him, but didn't find anything special.

However, if it is such an ordinary thing, you can see microorganisms through it.

No wonder Li Kuan said it was an artifact.

There's nothing wrong with that.

"That's right, this microscope can magnify objects about 500 times, so you can see a lot of microorganisms. The glass workshop in the back is still making microscopes with higher precision and higher magnification, so that the shape of microorganisms can be seen more clearly.

Your Majesty, microbial is just a general title, and Wechen speculates that there should be many kinds of it. In the next step, the Institute of Microbiology of Guanshishan Academy will focus on the study of various microorganisms that exist around us. Let's see if we can find some phenomena that we couldn't explain before. ”

Li Kuan briefly introduced the situation of microorganisms to Li Shimin.

Next, I'm going to slap the faces of those guys who are jumping in Chang'an City.

Obtaining Li Shimin's approval in advance can reduce a lot of constraints on his actions.