"That's what happened, and that's all I have come to visit you about."

After sitting down and talking for a while, Wang Fuchou suddenly knew the purpose of Xu Maogong's coming.

He dragged a telescope in his hand, and from time to time he looked into the distance.

Wang Fuchou obviously didn't expect that in addition to being a noble bird, he, a student, also had such a 'family heirloom' before.

Li Hongru has made the telescope old, but if he meets a master in his peers, his little trick will be exposed.

Although this heirloom has rust on it and looks a little old, Xu Maogong mentioned that it has not been left for more than a year.

If it weren't for Li Hongru's own handiwork, his ancestors would have been a little young, and they were still alive at this time.

"There are many aliens in the khanate, and they are good at anti-snooping and confusing, and many of our Yuanshen masters have been repeatedly restrained by it."

The aliens Xu Maogong mentioned are human beings who are good at using demonic power.

The warrior spirit is stable in the body, and many large-scale investigations have always been dominated by literati.

The primordial spirit of the literati master escapes and can detect traces within the corresponding range.

But Genshin also has restraint means.

Yin fire, wind, and heavenly thunder can all damage or even kill the primordial gods.

For example, Wang Fuchou's Nanming Ding Huo belongs to the category of Yin Fire, which is good at restraining ghosts, and can also burn the soul and hurt the original spirit.

And some of the hexels are more targeted.

"If we restrain each other, it will be enough, many literati masters are weak and it is difficult for them to follow our legions to attack and kill quickly, and it also makes us attack and kill again and again, even the plundering regiments that enter the country are difficult to hunt down."

Xu Maogong was obviously dissatisfied with the physique of the literati.

But each has its own way of cultivation, and there are very few people who can take care of both.

For example, his son, Xu Maogong, once thought about both civil and military skills, and tried his best to cultivate them, but in the end, he could not succeed in martial arts, and it was difficult to come in handy.

He couldn't do anything about it.

Cultivation has its own advantages and disadvantages, and it is difficult to take advantage of all kinds of benefits.

The khanates relied on monsters, and Xu Maogong set his sights on manufacturing.

He wanted to have some special ordnance and utensils to use in the wars he might face in the future.

Originally, he was eyeing Li Chunfeng's armillary zodiac.

It is said that this treasure is very magical, good at stargazing and positioning, and any wind and grass can not hide from the controller of the armillary zodiac.

However, Li Chunfeng's armillary zodiac is too precise and can only be fixed in one place, and any swing and turmoil will disrupt the observation ability of the armillary zodiac.

This treasure is good, but it is not of any use.

He originally wanted to return to the state as soon as possible, but he learned about a gadget from the military department.

In the end, there was also this trip to seek treasure.

"This treasure mirror is amazing, and the distance of snooping is extremely far."

Xu Maogong was full of praise for the telescope.

"The most important thing is that it only needs to be observed with the eyes, and it is difficult to arouse the perception of the other party."

The most important point was raised by Xu Maogong, that is, Wang Fuchou was silent.

Li Hongru was young and ignorant and did not understand the importance of it.

This treasure mirror is not just a toy, it is a military heavy weapon.

If it spreads, it will bring about a major change when the nations go to war.

He hoped to be used in the army of the Tang Dynasty, but he never thought of making Li Hongru a craftsman.

Li Hongru had never communicated with him about this matter, which made him a little confused for a while, and it was difficult to deal with this matter.

"I need ten treasure mirrors, and I also need treasure mirrors that can be observed farther and clearer, and I hope that Dr. Wang and Li Hongru can help me wait," Xu Mao said.

"You're looking for the wrong person," Wang Fuchou smiled reluctantly: "I still haven't understood what this is going on." ”

He swept his eyes over Li Hongru, and saw that Li Hongru's expression was quite calm, and he was relieved again.

Xu Maogong treats each other with courtesy, and how to do it depends on Li Hongru's own thoughts.

In any case, as long as he does not encounter pressure from the powerful, Li Hongru has the ability to dialogue on an equal footing, and it is impossible to be oppressed like ordinary craftsmen.

Like shame pants, they can be imitated and manufactured by the public, but at least they can eat some of the early dividends.

"It is extremely difficult to make a treasure mirror, but I am afraid that I will disappoint Xu Dudu."

Li Hongru's words made Xu Maogong happy, but then he frowned a little.

He is happy that Li Hongru no longer regards this thing as an ancestor, and listening to Li Hongru's meaning, the other party must know the production method.

But the other side mentioned the difficulty, which is likely to be difficult to customize in batches.

"Let's talk about it and see if we can do it," Xu Mao said.

"I'll tell you the basic principle of this treasure mirror first, and then we'll talk about the materials."

Li Hongru took a brush in the study, dipped it in ink, and built a complete schematic diagram.

"This is the objective, the lens that we use to collect images from afar......"

Li Hongru talked eloquently, Wang Fuchou listened with his cheeks raised, Xu Maogong looked pensive, Rong's father stared wide, and Rong Caijun was full of confusion.

"Focus, focal length, angular distance, line distance, what you said is a bit profound, I think Xiaoyou just understands."

Half-ringing, Xu Maogong had a headache and spoke.

A simple schematic diagram involves not a simple operation.

Although he didn't understand the key to this, he knew the crux of the matter by now.

Those two clear crystals.

These two pieces of clear crystal need to be constructed at a specific angle and distance in order to present a distant scene.

And these two pieces of transparent crystal obviously have a requirement.

If he asks for clarity and a longer viewing distance, that's fine.

The main issue is that the crystals need to meet the standards.

Li Hongru happened to come across a pair of mandarin duck eye crystals, which made this heirloom.

If you want to make another piece, you need to have the same material, or even a higher material.

Where would he find this kind of mandarin duck eye crystal at this time.

"Is it possible to carve this special shape of clear crystal?" asked Father Rong.

Crystal can be made into a variety of jewelry, if it is polished, it may not be able to be made into an eyepiece that meets the specifications, mandarin duck eye crystal is rarely completely natural, how much it needs some processing.

His suggestion made Xu Maogong's eyes light up.

Commanding all the year round and sitting in the barracks for a long time, Xu Maogong's familiarity with Chang'an Instruments Division and other public workshops is only average.

But there are so many skilled craftsmen in the world that it is impossible not to carve two special crystals.

He didn't want to have ten more sets now, he wanted to have a telescope that could see farther and clearer.

Even if the clearly visible distance is only a few hundred meters or even a hundred meters away, it may have enough impact on the battle situation.

"Please come with me to the Instrument Division."

was reminded by Rong's father, Xu Maogong immediately took action.

He is in a high position, and he does not need to apply in advance to go to these places, and it is very convenient to go straight to the point, and he can also ask for the final answer directly.

Xu Maogong had a bit of hope on his face, but it was also mixed with some apprehension that he might be disappointed.

He extended an invitation to the crowd, and they immediately responded.

If it can be done, some rewards are indispensable.

If it can't be done, Xu Maogong will die, and this treasure mirror can be concluded, and there will be no connection from then on.

Wang Fuchou glanced at Li Hongru.

Since entering Taixue, this student's practice has been quite uncompetitive, but he didn't expect that there were a lot of small inventions and small creations in private, and he gave some small surprises.

Seeing the small appearance of Li Hongru's head introduced by the Tao, he was angry and happy for a while, and it was difficult to describe the taste, and he didn't know how to teach this student for a while.