Han Jinxin looked at the long "astronomical telescope" placed on the city wall and was amazed. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Jin Guogong sent this kind of telescope, so that Han Jinxin could use it to spy on ten important people in Shandong on the city wall. Han Jinxin tried this telescope and found that this kind of telescope is really amazing. If the naked eye can see a person's face 30 meters away, and it is difficult to see it far away, this telescope can help the observer see the face of a person 3,000 meters away.

The telescope has a diameter of two inches and looks like a burning stick.

According to the words of Jin Guogong, the magnification of such a telescope is a hundred times. Compared with the original binoculars with 25 times magnification, the magnification of this "astronomical telescope" has been qualitatively improved.

In fact, the principle of such a telescope is very simple, it is a Kepler telescope. The use of two convex lenses as the objective and eyepiece increases the magnification exponentially. There is also a total reflection prism in the telescope, which is used to make an inverted image a positive image.

Of course, this kind of telescope has the problem of chromatic aberration, and when correcting chromatic aberration, a lens with a different refractive index should be added.

The grinding of this lens took a lot of time in the telescope workshop, and it was not until a year ago that it was successfully tackled. However, once the first piece is grinded out, the subsequent production is carried out in batches. This year, the telescope workshop produced more than 300 "astronomical telescopes", which are now just in handy.

Han Jinxin looked at the yamen of the governor of Shandong in the distance through the binoculars, and found that he could clearly see the expressions of the two officials at the gate of the yamen who looked at the people with contempt. The two officials were two miles away from the city wall where Han Jinxin was located, and they could only see two points with the naked eye, but they could distinguish the slightest hair with a telescope.

Han Jinxin felt that he admired Jin Guogong more and more. How could Jin Guogong invent so many new things? Each one is extremely practical. Even compared with the ingenious Lu Ban, Jin Guogong might as well let it go.

This ingenious invention after invention convinced Han Jinxin that the future of Jin Guogong was far beyond his current position. Han Jinxin doesn't know what will become of Jin Guogong in the end, the king of the county? Prince? But Han Jinxin believes that as Jinguogong grows bigger, more and more people will benefit Jinguogong.

Li Zhi thinks about the people everywhere and benefits one party. Every new thing Li Zhi took out, and the people benefited in the end. This is also the reason why Han Jinxin is loyal to Li Zhi.

Han Jinxin found a hundred discerning guards and arranged them on the Jinan city wall to use telescopes. The Jinan city wall itself is more than ten meters high, and the telescope can see all the people on the entire street when standing on the city wall facing a certain street.

Of course, in order to further reduce the attention of being watched, Han Jinxin built a lot of small wooden sheds on the city wall, and the telescope was hidden in the small wooden sheds to operate.

Now the city walls of the six provinces in Shandong are under the control of Li Zhi, and Li Zhi has placed some small wooden sheds on the city wall, and no one pays attention to it. Even if the organizer of the assassination of Li Zhi was more vigilant, he would not have thought that there was a telescope magnified by a hundred times in the world, and he would not have thought that the wooden shed on the city wall could monitor the entire city.

In this way, there will be no surprises.

What needs to be watched in Jinan City are the three figures of King De, the Governor of Shandong and the Prefect of Jinan.

Han Jinxin asked the watchman to focus on the main street at the gate, side door and back door of the three families, and clearly saw all the characters, slaves and maids who entered and exited the mansions of the three families, and recorded the figures and physique of these people. A few lookouts were then left to keep an eye on the gates of the three families, while the others were scattered to keep an eye on the other main streets of the city, monitoring the activities of the three families in the city.

If any of these three families left the city, there would immediately be lookouts standing on the tower and scouting from the twenty-meter-high tower. Basically, activities within a radius of ten miles cannot escape the surveillance of lookouts.

On the city walls of the other five prefectures outside Jinan Mansion, they are also arranged in this way. For each target to be stalked, Li Zhi was equipped with thirty secret guards to monitor them, striving to grasp the every move of these civil officials and nobles.

For some time at first, the lookout did not fully know all the servants and servants of the target, and could not fully grasp the activities of the target inside and outside the city. However, Han Jinxin adopted the method of rotation and asked each lookout to observe the gate of the target for several days, and carefully remember the appearance of the people entering and leaving. A month later, the lookout was fully familiar with the target.

As soon as the servants, the householders, or the civil vassal kings themselves left the mansion, their behavior was thoroughly monitored. The lookouts on the city walls watched from all angles and kept a close eye on the city's affairs.

The governors of Shandong, the prefects of the prefectures, and the three vassal kings were all closely monitored from then on, but there was not a single stalker on the ground, and there was not a single secret post that could easily attract attention, and these ten people were unaware that they were being watched.

Soon, the suspicious aspects of the ten civil officials and nobles were discovered one after another.

On May 15, Li Zhi was processing official documents in the third hall of the Tianjin Guogong Mansion, but saw the guards saying that the Son of Heaven had sent someone.

Not long after, a eunuch walked in with two little eunuchs.

"Jin Guogong, Shengshang sent Dongchang to inspect the leakage of Lu Mi Gong in the Beijing camp this month, and there are already results. The Son of Heaven asked me to send the list to the Duke of Jinguo. ”

Li Zhi nodded and said, "There is Father-in-law Lao." ”

Li Zhi took the list and saw that it listed sixteen Lu Mi guns that had been missed in the past three years. The time, place, and reason for the omission are listed aside.

However, the Lu Mi Gong craftsmen who left the capital camp were not on the list.

The father-in-law seemed to be quite proud of this list, and asked with a smile: "Grandpa Guo, Dongchang has put a lot of effort into this month, and then investigate the whereabouts of these Lu Mi Gong in detail, maybe you can find out the organizer of the assassination." ”

Li Zhi pursed his lips and said, "Father-in-law, according to what I have checked, the Lu Mi Gong who assassinated my father was not built in the craftsman of Beijing, but was built by a craftsman who left Beijing six years ago in other places. ”

When the eunuch heard this, he was stunned and suddenly embarrassed. If Li Zhi is right, Dongchang has been busy for a month.

The eunuch's face turned red and said, "However, according to the rules of the Beijing camp, once the craftsman enters the Beijing camp, he is not allowed to leave. What Grandpa Guo said seems unlikely. Unless... Unless the craftsman dies, he must go to the craftsman's office every day to work. ”

Li Zhi smiled and gently placed the list on the table. He didn't expect Dongchang to find out, and it was expected to get this nonsensical list.

During the Chongzhen period, Jinyiwei and Dongchang were in vain. In the original history, there was even a matter of the first assistant Zhou Yanru going out to supervise the defeat of the teacher, but he reported a victory. Even for such a ridiculous thing, Zhu Youzhen didn't know the inside story for a while, and he praised Zhou Yanru and entered the Taishi. It can be seen that the intelligence agency has never reported the affairs outside the palace to the Son of Heaven in a timely manner.