After thinking about the matter of the title a little, thinking that since it was Lao Zhu's order, it was impossible to drive the four little eunuchs away, Zhu Yuan didn't mention it for the time being, and turned to others.

He Xuan sent another letter from Lao Zhu.

Zhu Yuan dismantled it on the spot.

Lao Zhu first said that all kinds of tokens had been received, and then asked Zhu Yuan in a commanding tone to pay attention to his body, not to be tired, and to be taken care of by the four little eunuchs every day in the future.

Then came the business.

The first is about the collection of shipbuilding timber.

Lao Zhu sent 100,000 taels of silver, and squeezed ten more sea boats over, and gave Zhu Yuan a cheap deal, so that coastal residents could use wood to deduct this year's taxes.

When discussing shipbuilding, Zhu Yuan also thought of using taxes as a deduction.

However, on the one hand, this is not something he can decide at will, and Lao Zhu needs to make a decision, just like the fishermen were exempted from taxes before. On the other hand, because they already had the idea of collecting wool from the maritime merchants, they did not need to use taxes.

During this time, the various maritime trade merchant ships transferred to Mingzhou to complete the tax collection, and the cumulative amount of silver received by the Yinghai Division has exceeded 43,000 taels.

Unexpectedly, Lao Zhu still thought of it for him.

Not only did he give another cheap act, but he also sent 100,000 taels of silver.

With only 100,000 taels of silver, plus a tax deduction, even if Zhu Yuan didn't have the previous plan, he could still get the matter of collecting timber.

It is equivalent to Lao Zhu helping his baby twenty-third grandson to do a big thing.

Not only that, Lao Zhu probably also realized a certain problem, and said in the letter that he had sent a letter to all the armies of the Southern Expedition, strictly ordering the generals to seize any more sea vessels, not to detain them privately, and to send them all to Mingzhou.

When Zhu Yuan read this, he couldn't help but sigh again about his 'system' and his 'grandfather'.

No.

It's the ancestors!

How the song is sung.

Only the ancestors are good in the world~~~ The children with ancestors are like a treasure~~~

What a treasure!

Then read on.

The second is about Zhu Yuan's work log.

Lao Zhu asked not to use the previous post pass, and he specially sent a team of Gong Wei Si soldiers to come over, and these people were responsible for the letters that came and went.

When Zhu Yuan read this, he paused for a short time.

It seems that even if he can't reach the level of "Book from Heaven", Lao Zhu also takes his work logs very seriously.

Thinking about it, it's really important.

When dictating, in addition to not directly breaking a certain fact, many things that Zhu Yuan said can be understood at a glance for Lao Zhu, who has read "Book from Heaven", that is, all kinds of things in the next few hundred years.

It is indeed not advisable to pass it out.

As for asking the women around him to ghostwrite, Lao Zhu didn't mention it.

That's a good thing.

After all, how can you mention it, let His Majesty the Emperor praise them a few words?

Square peg.

If you don't mention it, you will have it by default.

At the end of the letter, Lao Zhu told Zhu Yuan again, telling him not to be anxious, not to be tired, and to be safe and stable.

It doesn't matter if things are messed up.

After reading this letter, Zhu Yuan felt more and more that Lao Zhu really regarded him as his twenty-third grandson.

You know, to put it mildly, for his subordinates, Lao Zhu is just calling like his own mules and horses, on the one hand, it is due to his character, on the other hand, Lao Zhu is also like this to himself, for decades like a day, 'a hundred bureaucrats rise before I get up'.

But for his children and grandchildren, Lao Zhu is a typical Chinese-style parent.

On the surface, he may be stricter with the children, but if he can give it to his children and grandchildren, Lao Zhu can't wait to stuff them all, which can be seen from the strong contrast between the 'prince' and the 'minister' who are both at the same level and 50,000 stones a year and 900 stones a year.

Most people know the allusion of '50,000 stones', but they may not know that there is actually a long list after that, and even the horse material of the children and grandchildren's families has been taken into account, and it is specially listed in the list of Yulu.

Zhu Yuan clearly felt that he was receiving more and more similar treatment.

Thinking of this, Zhu Yuan put the letter back into the envelope, solemnly put it away, and looked at He Xuan again: "Is there anything else?" ”

He Xuan continued.

In addition to the ten large ships and one hundred thousand taels of silver mentioned in the letter, there was also a batch of crystals.

The Shosaku Division has recently identified the location of a very extensive crystal deposit, located in Haizhou, Huai'an Province.

Zhu Yuan asked a few words carefully to confirm the location.

Later, Lianyungang Donghai County, the famous crystal township, I heard a few words when I purchased crystal utensils in my previous life.

After chatting for a while, after the matter was discussed, Zhu Yuan asked Freehand to take He Xuan and a few people to settle down first.

Zhao Xu and Zuo Qi both began to lead the troops, and they were already thousands of households with the fifth grade, and it was not appropriate to let them be in charge of all kinds of trivial matters in the mansion all the time, since Lao Zhu sent a few little eunuchs, they could be trained to be the stewards of the outer courtyard.

As for the inner house.

Zhu Yuan didn't really indulge in indulgence, so he didn't let a few little eunuchs get involved.

I really can't get used to it.

Later, I saw the Gongwei Si Baihu who came with He Xuan, named Wen Zao, a short man of about thirty years old.

Of course, Zhu Yuan knew the nature of Gong Weisi.

Lao Zhu sent a message to him, in addition to being responsible for delivering letters, he should also inquire about some news. Of course, since Zhao Xu and Zuo Qi were promoted to Qianhu and confessed some of Lao Zhu's explanations to Zhu Yuan, Zhu Yuan knew that his ancestors no longer monitored him.

What's more, even if it is surveillance, it doesn't matter.

Except for one of the biggest secrets, Zhu Yuan really has nothing to hide from Lao Zhu.

After talking about the details of the future delivery of the letter, I sent away the news, and the sky also darkened.

Zhu Yuan ordered dinner to be set directly in the hall on this side of the garden, and asked people to call Qingniang's two younger brothers.

Seeing people, Zhu Yuan once again had a strange feeling.

The kind I saw when I first saw the green tea girl.

Because the 'Gui'er' and 'Zhen'er' mentioned by Qingniang, one is 29 years old and the other is 23 years old, both of them have already married and belong to the kind of children who can run all over the ground.

Fortunately, Zhu Yuan is just a teenager's skin, and he is bigger than both of them inside, but he is just weird.

After the salute, everyone took their seats.

He Xuan quickly entered the state, and took the initiative to come over to be responsible for hospitality, placing tableware, and delivering dishes, which was very skillful.

Li Gui and Li Zhen are scholars after all, according to the clothing and other details, they faintly feel the identity of the four little eunuchs, and they are not sure, after all, according to the etiquette system, how is this possible?

Between serving, Zhu Yuan also noticed that the two brothers were wearing old clothes.

Thinking about the first time I saw the two Nizi families of Freehand and Liubai, they were still dressed decently, Fu Shou should not favor one over the other in this regard, but just smiled.

Didn't feel anything.

Zhu Yuan has never been morally clean, and believes that no matter what personality type, he is a talent if he uses it well.

Asked about the journey.

Sure enough, the seven aunts and eight aunts around the Li family, a total of ninety-six people, except for the two brothers Li Gui and Li Zhen who were confessed by Zhu Yuan, all went to Jinling.

also said that Fu Shou gave a settling-in fee again.

However, probably learning from the experience of being returned last time, this time the family only gave ten taels of silver.

Zhu Yuan didn't say anything after thinking about it.

When the water is clear, there are no fish.

Zhu Yuan hopes that the people around him can be measured, rather than necessarily being a fish in clear water.

So while eating, he turned to various other daily topics, and Zhu Yuan quickly figured out the general personalities of the brothers.

The third Li Gui is a little 'roundabout', but it is not yet the level of 'rot', cautious and polite. The fourth Li Zhen's mind is very active, and Zhu Yuan guesses that the idea of the two brothers wearing old clothes to see him should be put forward by Li Zhen.

Towards the end of dinner, Zhu Yuan drank a small bowl of chicken soup and finally asked the two, "What are your plans for the future?" ”

At the time of the meal, the two Li brothers only felt that Zhu Yuan's way of speaking was ...... I can understand it roughly, and I feel weird and weird, but I don't dare to question it. Hearing this question, the two put down the tableware together, got up at the same time, and Li Guidao, who was the elder brother, said: "My lord, the Li family is grateful for the kindness of the adults for saving their lives, and my two brothers have nothing to repay, but they are willing to be driven by the adults." ”

With that, the two knelt down together and bowed.

Zhu Yuan didn't stop the two, he had small arms and legs, he couldn't stop it, he had given up struggling for this kind of thing, and when the two brothers got up, although they noticed that Li Zhen's expression was somewhat mixed with some others, he still pretended to nod his head and said: "In that case, let's start doing things tomorrow, I happen to be short of manpower." ”

Summoning the two brothers over, in addition to looking at the character and the like, the main purpose is also for this.

The two brothers saluted again.

At the end of dinner, Zhu Yuan called Zuo Qi and asked him to take the two of them to settle down, and by the way, he gave them a tutorial of "Sketching Techniques" and "Fundamentals of Mathematics", and asked them to learn it as soon as possible.

As soon as the dinner plate was removed, Dai Sanchun rushed over with a jade craftsman, Cui Shen.

Because I heard that another batch of crystals was delivered.

These days, Dai Sanchun has been talking about the microscope, but the plan is always disrupted by Zhu Yuan.

The group of jade craftsmen sent by Lao Zhu earlier was originally intended to serve the Tai Hospital, so Lao Zhu also set up an instrument bureau under the Tai Hospital, and appointed Cui Shen, who came with Dai Sanchun, as the head of the instrument bureau.

Zhu Yuan brought all the craftsmen over this time.

Then, not only a few days ago, these people have been polishing the convex lens needed for telescopes, but in recent days, Zhu Yuan has been pulling a strong man to polish the ball copper ball in the bearing required for the hydraulic saw table.

I have to say that compared to ordinary coppersmiths, let this group of craftsmen who can make all kinds of delicate jade to polish the copper balls, well...... Rounder.

It wasn't until Zhu Yuan thought of another method later that Cui Shen and the others were freed.

Quite simply, car beads.

I remember that in my previous life, there was a very popular string of various wooden beads, in fact, a little understanding can be seen that there are people behind the scenes who are specifically promoting hype, just like fried tea, fried flowers, fried shoes and even fried onions and garlic.

The hype is a bit excessive, and car beads have become an Internet buzzword.

Everything can be beaded.

A simple hand-cranked lathe was made, and there was no need for the top jade craftsmen to do such a small thing.

Zhu Yuan also ordered to build a hydraulic lathe by the river today, and the efficiency will be even higher when the time comes.

Dai Sanchun used to be an old-fashioned doctor, but now he looks like an old-fashioned university teacher, with a thick stack of drawings, charcoal rulers, and a newly made vernier caliper.

Cui Shen, who is similar to an assistant, is carrying a wooden box with lenses and other related things.

Vernier calipers were thought of by Zhu Yuan a few days ago.

If you want to match the lenses, you must first make more accurate measurements, and in this era, the most accurate measurement method, Zhu Yuan can think of, is the vernier caliper.

The principle of vernier calipers is actually very simple.

Just like in the past, the main ruler scale is 1 centimeter, and the secondary ruler scale is 0.9 centimeters, both of which are divided into 10 parts, and the difference between them is used to narrow the accuracy to 0.1 millimeters.

The current inch is too long, and when Zhu Yuan gave a suggestion, he also proposed that he could divide an inch into two and then continue to be accurate.

So the vernier caliper in Dai Sanchun's hand is naturally named: half-inch caliper.

In order to make a microscope, the 'university teacher' Dai Sanchun continued to dig up information from Zhu Yuan, and now he can be regarded as an 'optical expert' in this era, and he is also studying mathematics.

These days, Dai Sanchun has discovered a way to determine the focal length of lenses.

It's actually quite simple.

Pair the light, gather the point, and then measure the distance.

Zhu Yuan didn't know if this was the standard convex lens focal length in his memory, but he also had to admire Dai Sanchun's carefulness, a very common phenomenon, he had also used a magnifying glass to demonstrate to everyone that ignited a fire in the sun before.

It was still impulsive at the time.

I want to catch an ant.

At this time, the ants have not yet come out of the nest and escaped.

However, I didn't expect the problem of focal length.

The two of them spread out various drawings on the round table where they had just dined in the hall, discussing with divergent thoughts, and according to Dai Sanchun's discovery, they confirmed a little more, perhaps, the focus of the concave mirror, I forgot whether there is one, but it can also be measured in a similar way, or inferred.

After all, the curvature of both concave and convex mirrors is only a part of the circle.

Now with vernier calipers, the measurement accuracy has been greatly improved, so it is possible to try to develop a set of standards.

The two of them wrote and painted and found the lenses on the spot to demonstrate and discussed for most of the hour, and once again scraped Zhu Yuan's inspiration in this regard, Dai Sanchun returned to the topic, and assembled the microscope on the spot.

Similar to the appearance in Zhu Yuan's memory.

It's nothing but a simple straight leg.

At present, it is not that refractive lenses cannot be made, but it is too troublesome and unnecessary.

I chose different eyepieces and objective lenses, tried all kinds of things, but still no results, and preferably just some light spots with no content.

Zhu Yuan was also pondering beside him, remembering that he had done a water drop microscope in his previous life, and he was indeed able to see things, and he was about to remove the lens from the cylindrical lens, reassemble it, look around, and found a problem: "It's too dark, I need to light a few more lights......"

After saying this, Zhu Yuan was suddenly stunned.

It's too dark...... It's too dark...... It's too dark......

Look at the microscope that Dai Sanchun is fiddling with, the eyepiece is right, the objective lens is right, the slide is also right, and then go down...... That's not right.

Something is missing.

That's what

What......

"Reflector!"

When he was about to start pulling his hair, Zhu Yuan finally slapped the table and shouted.

And remember that the light that can enter the microscope is very weak, so a reflector is needed to fill in the light.

No wonder it's always dark, with occasional bright spots and no content. I always thought it was a problem like the wrong focal length. finally reacted at the moment, just one word, too dark.

Well.

All right...... These are three words.

Dai Sanchun and Cui Shen saw Zhu Yuan suddenly slap the table and shout, and at the same time looked at him suspiciously, with worry in their eyes.

Don't ...... Sick again?

Zhu Yuan ignored the strange eyes of the two, and was about to explain, when a soft male voice came from outside the door: "My lord......"

It's He Xuan.

After the dinner with the Li brothers, Zhu Yuan sent them to rest.

How did you come back again?

With a promise here, He Xuan and another little eunuch came in with the curtain, bowed down and said, "My lord, it's already time, it's time to rest." ”

It's only nine o'clock.

Zhu Yuan did not refuse, waved his hand and said, "Wait a while." ”

turned to Dai Sanchun and Cui Shen, but saw that both of them had ghostly expressions.

Different from the Li brothers, Dai Sanchun and the two are very aware of the clothes of the eunuchs in the palace, and they can confirm it at a glance.

This......

How can there be eunuchs in someone's house.

What a great sin.

Zhu Yuan understood the thoughts of the two at a glance, and was about to explain, He Xuan had already said again: "My lord, the time is fixed, it is time to let your body rest, Your Majesty strictly ordered you not to be tired anymore." If you have any faults, slave...... The little ones don't live. ”

This ...... I don't need to explain it.

Hearing that it was Lao Zhu's order, Dai Sanchun and Cui Shen also relaxed, but their expressions when they looked at Zhu Yuan were still weird.

Even if someone is favored, he actually sends a eunuch to serve, this is too impolite.

Cui Shen, who is in his fifties this year and has rich experience and is an old man, also thought of another place.

Zhu Yuan.

Cinnabar......

'Zhu'.

I have to say, he thought it right.

No rewards.

Zhu Yuan saw that if he didn't go to rest, He Xuan would probably incarnate Tang Seng and keep chattering, so he could only nod.

Finally, he turned to the microscope in front of Dai Sanchun and signaled: "Below, there is a missing reflector that fills the light." Make one, well, flat or concave lenses, plated with silver, or grind a small silver mirror, and mount it underneath and look at it tomorrow in a well-lit outdoors. That's it, I went to rest. ”

After finishing quickly, Zhu Yuan and Dai Sanchun gave a simple salute before He Xuan was about to start reading, and then left the hall.