Special Years

In fact, to understand the impact of camouflage, we must first understand a concept of angle points.

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The angular minute is actually a geometric concept, 60 angular minutes equals 1 degree. The maximum resolution of the human eye is 1 arc minute.

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If there is an incompatibility between the camouflaged target and the surrounding environment, a person with normal vision can distinguish an object 2.5 cm in size at a distance of 90 meters with the naked eye.

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Even at a distance of 180 meters, as long as you have normal vision, you can still distinguish objects 5 cm in size. At a distance of 360 meters, the resolution accuracy of naked eye observation is expanded to 10 centimeters.

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But even so, the naked eye's ability to observe is still very terrifying.

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By analogy, if the observation distance of the target is too far, for the observer, when the angle in the entire field of view is less than one arc minute, then the naked eye cannot identify the lurking pretender.

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At the same time as distance discrimination, the pretender must also be familiar with color matching.

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This is a big problem, and a fatal problem.

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For example, if a black square with a side length of 2.5 cm is placed on a white background, people can clearly distinguish it with the naked eye at a distance of 90 meters.

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Two factors are considered overlapping, in this regard, refer to the experimental results of relevant aspects

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At a distance of 460 meters, it is difficult for the naked eye to distinguish a 12-centimeter target.

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460 meters does not seem to be a very long distance for a sniper.

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Because the most basic theoretical range of many sniper rifles is 800 meters, you can completely increase your sniper distance to 500 meters in operation, so that the enemy cannot recognize you.

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However, human technology has greatly extended this value by 20 times for ordinary observation telescopes. Under the magnification effect of 20 times, it is theoretically possible to achieve the target of 0.25 cm at a distance of 460 meters, even if it is not good. , it's a matter of distinguishing 0.5 cm or sprinkling water (easy).

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When I understand this, I also understand solemnly. In the past, when the field troops were training and exercising, comrades in arms liked to stick some grass on their helmets, or use plants to make things like headbands and wear them on their heads. Everyone thinks that this kind of camouflage is not bad, just like the war movies that you have seen before, right? !

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However, after coming to the special forces, Zhuang Yan realized that this simplest camouflage was simply too fragile to be attacked in front of the observer.

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Just like the team of Zhang Yuanyi and Chai Yifa just now, they were all dressed in auspicious suits, with camouflage paint smeared on their faces and hands, and they used to be in the field army. This is an awesome camouflage technique.

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It's a pity that in front of Han Yanwang and a group of comrades in Class B who are also special forces, they only climbed to a distance of 800 meters before being discovered.

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Just because the black on a pair of combat boots exposed the position, thinking about it, the telescope is simply too threatening to a sniper.

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After understanding this, Zhuang Yan understood why on the sniper target sequence list, soldiers with observation instruments belong to the priority level, because that is the eyes of the enemy. If the observation hand is eliminated, the opponent will become blind.

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Now, it seems like nothing can be done.

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Zhang Yaoyi and Chai Yifa's group were finished. In this jungle, four groups of people from Class A, including myself, survived.

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Time passed slowly, and there were only one hour and twenty minutes left.

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Solemn can only wait.

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Can't can't.

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A sniper must have better and more determined patience than normal people.

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If the enemy does not move, I will not move.

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It's like a snake hiding in the dark, quietly staring at you, watching you, and when you reveal your flaws, it will suddenly attack and bite the key.

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The two of them were lying on the left and right behind the tree. After a while, they solemnly said, "Old Yan, give me the sight glass. My scope is not very useful. The field of vision is too narrow, and I can't see clearly."

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Seriously handed the telescope to solemn.

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I slowly scanned the surroundings, and then looked at the sky.

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Fuck!

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The weather doesn't seem to be about to change.

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It seems that Zhang Yaoyi's group was impatient just now. I guess they didn't think about waiting for the sky to get dark, but because they couldn't wait, they felt that the weather would not change, so they simply took a risk.

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As a result, under the powerful observation and monitoring capabilities on the observation platform, he immediately became cannon fodder.

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Zhuang Yan doesn't plan to act rashly now.

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Isn't there more than an hour left?

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Then wait.

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Sniping and sniping, sometimes it is patience that is often confronted.

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Whoever has the best patience, who controls himself, who sees the opponent's flaws first, will win the duel.

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Although Zhuang Yan felt that he really didn't have much chance of winning the confrontation with Han Zizuo, but who knows?

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Class B and Han boasted that although they had telescopes, they had four different angles.

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Han boasted that it was impossible to stare at one angle forever.

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As long as Han Yanwang's attention is not on the other three aspects, he may break through.

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He felt that he should find the weakest place to start.

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Now, he prides himself on looking at the lookout from the binoculars a little bit, instead of looking at the surrounding scenery.

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The terrain and scenery here have been deeply imprinted in his mind, and he has remembered what the small shrub looks like.

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Now, what we need to see is the flaws of Class B, Han Zixuan and others.

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There are flaws in human beings, this is solemn and very firm.

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Although Han claims to be the captain and a veteran sniper, there are times when tigers doze off, right?

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Not to mention that this place is so big, he is not a robot, with eyes on the back of his head.

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Zhuang Yan had an idea in his heart, avoiding Han Zixuan's gaze to find the entry point.

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Class B are all players who joined the team at the same time as themselves, and these people can be coached and measured at a level with dignity.

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The biggest problem lies in Han Yanwang, Zhang Zhiang and Yan Guanjun.

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One of the three is a captain, an officer, and a master; the other is an expert in parachute and an eight-year veteran, who is also a master who is not easy to mess with.

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In the end, it was Champion Yan.

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Yan Guanjun has three years of military service, the same as his squad leader Luo Ping'an.

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According to the solemn observation, these three people occupy one side and observe together with the other team members.

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Occasionally turn around, look in other directions, and change observation positions.

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In this way, just like the patrols in the camp, if you want to go in and check the sentry, you have to avoid the patrols.

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As long as the shifts are handed over, there will be gaps.

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The three great men looked at the three sides, but one side was only monitored by people from class B. Even if the three of them switched occasionally, there was definitely a time difference.

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A bold idea suddenly took shape in the solemn mind.

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Last night, I don't know who talked about a long-standing rumor in the VIP subscription group that special forces like to use sanitary napkins as insoles when marching.

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I don't know where this rumor came from, but it has been spreading all over the Internet, as if using a female aunt's towel as an insole seems like a cow. I have listened to this rumor for so many years, and I am also noncommittal.

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Because I'm too lazy to explain, at least in the past, whether it was field survival, long-distance training or long-distance raids, I never tried to remember that I never tried to use my aunt's towel to pad my soles.

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Everyone discussed it for a long time last night, and I analyzed the unreliability of this rumor based on my own experience.

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First, it is true that aunt towel absorbs water, but it will swell when it absorbs water. You can imagine that your shoes were originally very close to your feet, but when you put aunt towel on, it swells after absorbing water, and you will grind your feet and feel uncomfortable. It is good for the blood circulation of the feet. As a soldier, you know that the long-distance zipper is the most likely to have swollen feet, so generally the shoes will be relaxed a little bit, and put on the aunt's towel? Don't even think about it!

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Second, field training or long-distance raids and rallies are not on flat roads, not on roads, but on mountain roads. On the way, you have to travel through various jungles, and sometimes you have to cross mud rivers, swim across, etc., please put the towel in the water. After soaking it for a while, what does it taste like? I haven't used it, but I can imagine what it would be like if you could try it.

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Third, such things are not allowed in the internal affairs of the army. The most famous one is the muzzle of the US military in those days. This is scientific, no problem. But if aunt towel enters the military camp... I can't imagine this state, the picture is too beautiful... I dare not think about it. In a strict army, there are strict requirements for the placement of items in the lockers. For example, in our past, clothes were folded into small squares, books and notes, as well as belts and armed belts, as well as scattered items. All have strict requirements, so strict that officers will check them all the year round, especially the most terrifying inspection.

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The check is divided into regular check and irregular check. Usually once a month on a regular basis, if it is irregular, I don't know, but come once when I'm happy. We used to have a staff officer from somewhere with a superior in the army, and suddenly drove into the camp, looked for the brigade leader, and then blew the emergency muster whistle. All the people came out and stood in line. The staff officer and the inspector lined up the rooms one by one to search the cabinets. Are there any prohibited items (because our unit has been shooting live ammunition for a long time, so we are afraid that soldiers will keep and hide ammunition, this is a key point).

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But the illegal items, such as radios, bb machines, etc., are also confiscated, and they will be severely punished. You can imagine the expression of the superior inspection staff who came to find a lot of female aunt towels in the drawer?

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It's funny to think about it, right?

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Later, a few group friends who like hiking and mountain climbing and cross-country discussed for a long time. Among them, the "storyteller" brother likes hiking. He also used his aunt's towel for experiments. The original story is that when you first put it in, it was very dry (of course it was dry! Otherwise, how did the advertising slogan write it?), and then stepped on it and it was soft (the texture is good! Who buys it? Sandpaper is ready.), and started hiking, with all kinds of slippage, curls, and sole separation caused discomfort on all kinds of terrain... (exactly as I imagined)

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So ~www.novelmt.com~ I'm not going to draw a conclusion, but I declare that I have never seen a single unit, including a member of a special team that exercised and trained together, used any aunt's towel as an insole. Those who spread this rumor with gusto, or some soldiers who have been in the military but have not been in the special forces, say that they have used it for the sake of face. Don't talk about it in the future. Really veteran soldiers will laugh when they hear this. .

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Later, the group friends in the group were still old-fashioned (I forgot, don't hit me...) and said, the earliest rumors that he can check is that the mold soldiers went to fight in the hot zone and put the aunt's towel in the helmet Absorb sweat and keep the inside of the helmet dry! Later, there was a rumor that my aunt's towel was used as an insole...

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Put it in the helmet? This is reliable! When sweating a lot, the sweat will seep into the eyes, it is easy to blink when aiming, and the shooting opportunity will be lost, no problem!

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I am in favor of putting it in the helmet, but in our Chinese culture, I think that such a thing is put on the head... Maybe the belief of the eagle sauce is different, people believe in the Virgin Mary... For me, I would rather put my daughter's urine piece……

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So, in the future, if anyone tells me that my aunt uses a towel as an insole and asks me if I have done this before, I will be in a hurry! I'm not that retarded!