Chapter 30: Make a telescope

During a cross-country training, Marin surveyed the terrain there, but found that the distance seen by human eyes was limited, and he couldn't see clearly from a distance. So Marin thought of the telescope ...
The telescope was only invented in the early 17th century. There are still more than a hundred years before. Marin had to find a way to make an "invention" ...
Of course, as an advanced technology and a strategically advanced technology, Marin is not willing to let others know the existence of the telescope. So he went to the optician shop in Robach, looked for the artisans in the shop, and polished a batch of circular concave lenses of the same size. Then, he rode to another town and found a local optician. The optician in this shop polished a batch of convex lenses (magnifying glass) of similar specifications for him.
接着 Then, he went to Vienna and found an artisan who was good at making wooden crafts and made a batch of wooden barrels for him. The front and back ends of the wooden barrel are detachable spiral-shaped card holders, which can fix the polished lenses.
Of course, in order to hide the lenses, there is a length of wooden barrel in front of the card holder so that the glass inside can not be seen. If you don't pay attention, when Marin looks at the distance with a telescope, others think Marin is looking through a wooden tube.
However, what makes Marin depressed is that the quality of glass in this era seems to be inadequate. Normal glass is a bit green. This is because the iron ions in the glass are not removed, so the transparency of the glass is not very good. The earlier optical glass, lead glass, appeared to appear in Britain in the 17th century.
So Marin can be sure that telescopes of this age will not look too far. Because the clarity of the glass is not enough ...
Sure enough, after Marin received the goods a few days later, he assembled the telescope himself, and he could draw a long wooden barrel and adjust the focus. However, no matter how Marin adjusted, the telescope's telephoto distance did not exceed 5 kilometers. Farther away, it starts to blur. Even at a distance of 5 kilometers, it can only be distinguished, and it cannot be seen clearly. Of course, this is used to detect enemy conditions, which is much stronger than the naked eye.
After assembling the two telescopes, Marin bought two wooden boxes and locked the telescopes. The keys are only for him, and others cannot open them. Even if Kahn was few, they didn't know what it was.
Later, in order to train Schwartz (in fact, Marin decided to be lazy and let Schwartz do some daily work for himself), Marin organized several group confrontations. The confrontation was mainly in the mountains, and Marin also took out the tactics of ambush commonly used in the mountains. However, he did not dare to use the trick of smashing stones on the mountain, because it would kill people.
Schwartz took the man in pain, carefully carried out a long roundabout, and then quietly touched the camp guarded by Marin. What he didn't know was that, at a high place in the camp, Marin had long used telescopes to figure out his troop deployment and marching direction 5 kilometers away, and made corresponding adjustments.
When 50 people from Schwarz touched the camp, they faced the traps and encircles under Malinbu ...
Others didn't understand it, but Kohler, who wasn't on the sidelines, seemed to understand it—as if Marin could make the corresponding subordinates, which had something to do with the two cylinders locked in the box. However, as an attendant, he is not easy to inquire about, and cannot do so. Depressed Schwartz, however, did not quite understand why Marin could "see the enemy first." Then Schwartz worshipped Marin even more ...
After several drills, Marin seemed to notice that Kohler noticed the cylinder in his hand. So he felt that the cylinder in his hand seemed too conspicuous.
As a result, he again found artisans, customizing smaller lenses and smaller and less humble cylinders, and assembled small telescopes again. This telescope is small, and Marin can cover most of it with two hands, but it can also reach an observation distance of 5 kilometers. When Marin stood high and looked out with a telescope, others saw Marin with his hands in front of his eyes, thinking that his hands were used to block the sun ... In fact, his two hands, holding With a small cylinder ...
In fact, the telescope thing is most useful for scouts. Marin is the head coach. It is possible to observe enemy lines before the battle, but it is not possible to go out to investigate frequently. (There are also coaches who investigate in person, but the end is generally not good. For example, Li Zicheng went out to investigate in person and was armed to KO by an unknown landlord. Washington personally investigated , And was almost sniped by Colonel Ferguson ...). So, after much deliberation, he decided to develop Sauer as a scout ...
He chose Sauer because the Sauer family were their own serfs and more reliable than outsiders. Moreover, Sauer has a very calm personality and a good mind. From his recommendation of Schwartz, Sauer is also a bit wise. At least, he sees people. Moreover, Sauer's vision is also good. What's more, when hunting before, Sauer also often carried out reconnaissance tasks, and had some experience in this. He was able to return to report the position without alarming the deer herd or wild boar, proving that he was well suited for investigation.
Moreover, in this era, the scouts often had to approach the reconnaissance, which was very dangerous. If you are not careful, you will be found and pursued by enemy sentries.
After you have a telescope, the scout does not need to approach the other camp, as long as you find a high point a few kilometers away, you can do it with a telescope.
In the era when telescopes were not popular, even the best-sighted people had to be within one kilometer to get some important data. Most people can only see clearly if they are within a few hundred meters. Therefore, people in this era will not exceed 1 km away even if they are anti-reconnaissance.
Therefore, as the first people to use a telescope to detect, in general, Sauer's safety can be guaranteed.
After the encounter, Marin and Sauer exchanged privately. Marin tested Sauer's loyalty and found it to be good. He then made Sauer swear that he would never allow anyone to reveal anything about the telescope. Moreover, every time Sauer goes out for investigation, he can come to collect the telescope here. Usually, Sauer's telescope is locked in Marin's box.
Not only that, Marin also demanded that in front of others, Sauer not use a telescope to avoid being seen as a problem.
Sauer didn't care at first, but when he got the telescope, he was really surprised. The first time he used the telescope, he was so scared that he almost dropped it.
这 "This ... this is amazing!" Sauer was shocked.
"Well, Sauer, remember, never reveal the secret of the telescope to anyone! Including your loved ones!"
"Yes, Master UU reading www.uukanshu.com!"
还有 "Also, don't drink too much alcohol in the future. Drunk is easy to talk about."
"Yes!"
"Well, go!"
A few days after his death, Marin provided Sauer with several investigative missions, taught him how to hide himself, and gave him a camouflage investigative costume.
After training, Sauer accomplished the task better than ever. In fact, this kind of task is also very difficult. Peeping with a telescope a few kilometers away, who can't do such a thing. The key is to choose the right place to avoid being discovered by the other party. Moreover, investigations also require patience. Fortunately, Sauer is a very patient person. If it's as quick-tempered as Kahn, there's certainly not that much patience to slowly count the details of the number of people, the number of animals, and the number of horses in and out.
Of course, this involves knowledge in inferential calculus, and Sauer is certainly not at that level. What Sauer can do now is to estimate the number of the other party through the house / tent, and to estimate how many pots the other party has by using the amount of cooking smoke raised during cooking, so as to simply infer the number of the other party to eat ...
These are the basic truths. Westerners in this era prefer to go head-to-head. At this time, they will never come up with any plan to "reduce the stove". This estimation is quite accurate.
In addition, Marin also urged Sauer to strengthen the observation and estimation of enemy food storage locations. In the Middle Ages, Europeans didn't think of ways to use sand to disguise military rations to stabilize people's hearts. Therefore, investigating the other party's food reserves is also conducive to estimating the other party's military heart (the food will be stable only when the military heart is sufficient), and it can even facilitate the destruction of the other party's food and grass ...
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