Datang Nongsheng

Chapter 174 The First Generation Telescope
Even though he had been mentally prepared for a long time, Li Chunfeng was terrified by the scene in the telescope.

"Li Daochang, this telescope needs to look far away."

"Far away? That's right. I said why your nostrils have become so big. I'll go out and have a look."

Li Chunfeng realized the beauty of the telescope after brainstorming a little, and ran out in a hurry, and then he didn't come back for a long time.

Sun Xiangfu roughly guessed the reaction of people who saw this magical item for the first time. With the experience of assembling the first telescope, the subsequent assembly became faster.

"The ratio of this kind of sleeve is the best. Remember the scale. When you go back, make some smaller ones. The lens will be reduced according to the same ratio. I will get a few smaller ones to install on the sextant. In addition, these redundant ones will be melted away. Let's just make the one with the best ratio." Sun Xiangfu picked out one of the hundreds of copper sleeves.

A simple concave-convex mirror cannot actually make people see things that are too far away, so Sun Xiangfu asked craftsmen to make a telescope tube that can be installed with a third convex lens, so that the inverted image formed when passing through the second convex mirror can be transformed Forming a positive image greatly increases the viewing distance of the telescope, but what Li Chunfeng holds in his hand is the simplest version of the telescope with only one concave-convex mirror, which can only magnify the object several times at most.

Holding the combined binoculars in his hand, Sun Xiangfu first observed the tea on the table, and the tiny decomposed particles inside could be clearly seen.Visually, this telescope can magnify objects at least forty times. Of course, if the craftsmen are given more time, they can manufacture telescopes with higher precision, and even astronomical telescopes that can observe celestial bodies. This requires continuous firing thickness The crystals of different sizes can be explored slowly, and it cannot be completed in a short period of time.

However, a telescope with a magnification function of more than 40 times is already a great thing. In fine weather, it can at least help people see objects at a distance of 1000 to [-] meters. If the target is large enough in an open place , several kilometers are not a problem.

Imagine that on an open grassland, you can find the whereabouts of the enemy a few kilometers away. Then, there is no such thing as an encounter, because everything will become an ambush. Even a war horse needs at least a few kilometers to run. One or two quarters of an hour is enough time for the general to set up a battle formation to counter each other according to the number and types of enemies.

Of course, Sun Xiangfu did not use the telescope for war. What he needed more was a microscope that could help him see the development and changes of seed embryos clearly.
The principle, but the manufacturing of this thing still needs a long way to go in terms of technology. The initial investment will be huge, and the things produced are also extremely huge. A microscope made purely by optics can magnify objects by 160 times. Sun As long as the enjoyment is [-] times, it can almost be used for plant research.

Sun Xiangfu showed his work to Ma Lin and Zhang Quan for a try, and after a quarter of an hour, they realized how miraculous the things they had made in the past few days were.

"The technology of firing glass with sand still needs to be studied, so that we can have enough raw materials when we study this kind of telescope. In addition, the manufacturing process of the lens barrel still needs to be explored. I want a whole lens barrel, and The telescope that can change the focal length by adjusting the prism lens, let the craftsmen continue to explore, and the first one to come out will be rewarded. Also, when I go back later, you can help me bring this gift to Xiu'er."

With that said, Sun Xiangfu gave the two of them a crystal glass mirror painted with mercury and inlaid in a silver tray.

"This······"

They could see clearly what Sun Xiangfu did just now, but they didn't expect to simply brush mercury on a flat transparent crystal plate, put it in a thin silver frame, and get a picture that made everything show clearly. of magical things.

"This thing is called a mirror. When you expand the flat crystal in the future, don't make a square shape. It should be a rectangle! It can be so big that the whole person can be reflected in it. As for the small one, it should be round! The cost of mirrors is too expensive at present, remember After brushing fish gelatin on the back, inlay it in a gold, silver and bronze mirror of just the right size, so as to prevent the mirror from breaking." Sun Xiangfu explained to the dazed two.

"Are we using the remaining crystal ore to make this mirror?" Zhang Quan stroked the mirror like a treasure.

"No, all of them are used to make concave-convex lenses. We will have the time to make this kind of mirror after you burn the pure and transparent glass with sand."

The role of the mirror is not much practical except to make people look beautiful, but the telescope microscope is an important thing that allows people to enter the microcosm. Once humans enter the microcosm, they will take a big step forward on the road of science and technology. For example, the telescope in Sun Xiangfu's hand can clearly see the structure of blood cells, because blood cells are very large, and when he can distinguish blood types, blood transfusion, a widely used medical method, can come in handy.

For Sun Xiangfu's arrangement, Zhang Quan and Ma Lin basically followed blindly. After wrapping the glass mirror with thick cotton cloth, Zhang Quan still felt unsafe, so he put it in his arms and covered his chest with his hands.This is the first mirror in the world. Zhang Quan is more cautious, but Sun Xiangfu thinks it's okay.

After Ma Lin and Zhang Quan left, Sun Xiangfu waited boredly in the cell for Li Chunfeng to come back, but the Taoist priest might be addicted to playing and didn't come back for a long time, but he asked Sun Xiangfu to wait for lawyer Pei.

"Zhengming, I have already done the training of spies for you, but my clan uncle is old, so he only promises to help you train a group of people, up to about 20 people, and these people will basically be available in half a year." See no People are here, Attorney Pei whispered beside Sun Xiangfu.

Sun Xiangfu didn't know what price Attorney Pei paid to invite his uncle, but he could tell from his tone of voice that he had tried his best.

"Well, twenty people are enough. By the way, you can take the things on the case table and give them to your clan uncle. This thing may be of great use to him." Sun Xiangfu's courteous lawyer nodded Nodded, pouted on the case table again.

"What is this?" Lawyer Pei asked while grabbing the binoculars made up of several screw-on sleeves with one hand.

"This thing is called a telescope. You can also call it a telescope. It can make people see things several miles away. It should be of great help to the investigation of intelligence. You look at one end of the lens barrel and look at the other end. I will know."

All right!Lawyer Pei, like Li Chunfeng, picked up the binoculars and looked directly at Sun Xiangfu. This time, he saw a huge thick lip.

"This······"

"Hehe, it's amazing! You have to use it to see things several miles away. This thick sleeve can be stretched and used to easily adjust the focus."

Naturally, Sun Xiangfu did not intend to keep the first-generation product of the craftsmen. It was too rough, and the focus adjustment was too simple. It is the second-generation product that can adjust the focal length according to the distance of the target.

"God, it's amazing, do you know? With this thing, my uncle who can speak lips can understand the conversation of people from a long distance."

Professionals who are responsible for espionage intelligence have some special skills. In addition to hiding whereabouts, this lip language is almost a compulsory course, because the target often won't let you get close to eavesdrop.

"Well, if you put it that way, I'm looking forward to these people even more." Sun Xiangfu said with some surprise when he heard the words.

The asymmetry of the amount of information often determines the strength of a person. A person who has a lot of information can easily kill a person who has a little information, because more information means that there are more ways to think about it.

Li Shimin was able to gradually stabilize this turbulent dynasty because he had the largest amount of information. Sun Xiangfu was always passively beaten because he did not have enough information, waiting for others to make moves every time. Only when you are on your own, can you see the tricks and deal with them passively. This kind of days will be gone forever in half a year at most.

Therefore, Sun Xiangfu is more grateful to Attorney Pei at this moment. He is the first friend Sun Xiangfu knew. He is deeper than Sun Chong in terms of emotion, and he is not comparable to Yuchi Baolin and Cheng Chumo, who are not yet sober.

"I will also participate in the battle of Shuozhou, so I'm not here to say goodbye to you. I ordered two sets of the cotton armor produced by your clothing workshop and tried them on. The effect is really good. If it doesn’t snow, you’ll be sweating in your clothes!”

"Are you going to Shuozhou too? There seems to be no flying cavalry in the expedition team!"

"If I don't have a flying cavalry, I will apply to be transferred to Duke Ying as a pawn! Anyway, I will go to the battlefield."

Hearing this, Sun Xiangfu was dumbfounded. Now the imperial court has no need for Pei Ji anymore. After the military parade, even Li Xiaochang, the king of Yi'an who originally planned to rebel in history, died down, and other rebel forces dared not take the lead. Therefore, Li Shimin He was already thinking about getting Pei Ji, who was occupying the latrine, to be used by his talented and practical officials. This process was two years earlier than in history.

If Pei Ji is dismissed, his fate will not be so good. He was the mastermind who once planned to rebel against Li Shimin. It is normal for such a person to die of illness and sudden death in his later years. Therefore, lawyer Pei, who wanted to save his father, wanted to do something. What.

"You are the only son of Prime Minister Pei, and you have returned to the princess. Even if His Majesty disposes of Prime Minister Pei, he will not touch you for the sake of the Supreme Emperor. Why bother!" Sun Xiangfu, who roughly guessed that Li Shimin might do something, persuaded .

"Hey, staying in Chang'an is a lot of trouble anyway, why not go to the battlefield for a walk, if I can wrap my body in horse leather, it will also fulfill my childhood wish."

Lawyer Pei said it was free and easy, but Sun Xiangfu saw his sad back when he left. It's a pity that he himself is now a prisoner whose life and death are uncertain.

However, Li Shimin would be too merciful if Lawyer Pei could choose things like this. Is Li Shimin merciful?A person who kills his whole family even with his own brothers and sisters, is not so kind.Therefore, Pei Ji must die. Lawyer Pei cannot be undone. He died in battle. The only thing he can prove to the world is his loyalty to Li Tang, and this loyalty will only destroy Li Shimin's painstaking efforts. Therefore, Li Shimin will not allow this kind of situation to happen, so his best ending should be to live in Chang'an and wait to die for the rest of his life.

(End of this chapter)