"What I just said is a fictional character, you don't have to take it seriously. I already understand your intentions, hurry up and get rid of the wattles on your body, you see it's bleeding. It's all my own brothers, and I've long forgotten what just happened. What's more, you are still apologizing to me so sincerely, and I have no reason not to forgive you again, right? ”

"Well, Chairman, can you help me get it? It seems that this wattle has pierced the back, it hurts! Zheng Ze said bitterly with his teeth gritted.

At this time, Xiaohu also happened to go out, saw Zheng Ze outside the door, and learned that Zheng Ze was guilty of Jing pleading, and he was also impressed by his righteousness. Together with the Supreme Treasure, he helped him remove all the thorns from his body.

"Brother Zheng, you are really a man, you are injured on your back like this, and you don't say anything?"

"What is this? I used to fight and kill when I was much more serious than this, and this is a minor injury, as long as I can get the chairman to forgive me, I am nothing with this injury. ”

"Forget it this time, don't take it as an example. You just need to realize your mistakes and stop making jokes, no need to harm yourself! Here, this is the black jade intermittent cream I concocted, you should know that the treatment of trauma is very effective, take it and ask Xiaoyu to help you wipe it, be careful not to get infected. I want to accompany Xiaohu to practice night sniping, so I can't help you apply this medicine. The Supreme Treasure handed the black jade intermittent paste that he carried in his pocket to Zheng Ze and said.

Zheng Ze was moved to take the black jade intermittent ointment, "The chairman won't say anything, I won't say those stupid things in the future, I will only do things obediently in the future and absolutely obey your orders." ”

After helping Zheng Ze untie the knot, Supreme Treasure took Xiaohu to the jungle at night to train sniping.

Because Xiaohu's eyesight is special, there is no need to use night vision equipment at all, and although night vision equipment can indeed help soldiers see farther at night, but the actual use is not as good as imagined, especially for the garrison, although night vision equipment provides better night vision ability, but its narrow field of view is not conducive to the sentry to find the target.

To give a slightly irreverent but tangible example, a person who uses a night vision device is not as good at observation at night as a military dog. Although night vision devices can bring the observer closer to the target, it is very difficult to observe in a narrow field of view. The dog's eyesight is not good, but it can see as clearly at night as it does during the day, and more importantly, its field of view has not diminished. Anyone who has studied physiology in middle school knows that the cones and rods in the eye determine the ability to perceive color and light/shade. The foveal area of the human retina facing the pupil is full of cones, and the corresponding area of animals with strong night vision contains not only cone cells, but also a large number of rods that are sensitive to light.

Not only that, but the eyes of many animals can also reflect incident light to enhance vision, such as the eyes of wolves at night glow yellow-green, cat's eyes glow green or blue, cow's eyes glow blue, and so on. If one day, night vision technology is highly advanced and it is possible to develop a contact lens that surpasses the level of night vision of animals, then the night on the battlefield will end up being the same as the day. Of course, this idea still seems quite sci-fi now.

Regarding Xiaohu's night vision, Supreme Treasure can't explain it, it's like a mystery. Even a body like the Supreme Treasure, which had been purified by an artifact, might not be able to reach his high level of visibility at night. The physiology of night vision in the general human eye, it is undeniable that there are blind spots in the human eye.

There is a test chart with a large white dot in the center of the black screen, and a few centimeters to the left of the dot is an image of a sniper. You close your right eye and stare at the point in the picture with your left eye, then move your eye to the point in the picture, and when the distance reaches a certain point, you will be surprised to find that the sniper on the left side of the picture is magically gone. This is because the visual cells at a certain point in the human eyeball are relatively dull, and when you observe with one eye, when the target is in that point in the eyeball, you will naturally not be able to see it. This is the blind spot of the human eye in normal light.

As a sniper on a night mission, how do you observe a target when it appears in front of you, keeping your eyes fixed on it? One eye on the target through the scope? Or is it something else?

To find out the answer, you can first do an experiment by looking at a target in a dark room, and then try to shift the focus of your gaze slightly to the left of the target, and you will find that you can see more clearly than if you were looking at the object itself. This is because the most sensitive areas of the human eye do not align with the normal field of view, which is known as the "principle of left strabismus". In fact, the use of left-squint observation at night has become very popular among special forces, and the civilian population and even many police officers are unaware of it. Knowing the principle of left strabismus, the above question is not difficult to answer. Whether looking binocular or monocular through the scope, the sniper should place his or her gaze to the left side of the target, offset by ten degrees, in order to obtain a clearer image.

The process of seeing at night is actually the process by which certain visual cells of the human eye are activated. Usually, this process takes about half an hour. When a person moves from a bright environment to darkness, something that helps with light perception begins to accumulate in the eye, eventually increasing the sensitivity of the human eye to light by a factor of 10,000 to 100,000. It should be pointed out that due to the low oxygen carrying capacity of the blood, the night vision ability of smokers is only 80% of that of normal people.

The next thing is to hide yourself in the dark, which objectively is beneficial for snipers. The darkness makes it easy for snipers to conceal and achieve the suddenness of the attack. How should I hide myself at night? The easiest way to do this is to hide behind bushes and leafy plants.

Another important point of concealment at night is camouflage. According to the actual combat experience of the Mi army, the night camouflage effect of the jungle camouflage combat uniform is better. During Operation Desert Storm, the Mi Army equipped the ground troops with a special night desert camouflage combat uniform. This kind of combat uniform makes up for the defects of the night combat of the white light desert camouflage uniform of the Mi army, which can scatter, blur and absorb the light emitted by infrared equipment, and the actual combat effect is very good. However, after later comparisons, the effect of the jungle camouflage combat suit is better than that of the night desert camouflage combat uniform.

Speaking of sniper camouflage, it is impossible not to mention the Gillette camouflage suit. What are the special features of the Gillette camouflage suit used at night? Sniper experts in the Mi Army believe that snipers do not need to wear a full-body Gillette camouflage suit at night, as long as they wear a Gillette camouflage shawl. This shawl breaks the silhouette of the human body when the sniper is traveling at night, and when the sniper is lurking, the camouflage shawl can achieve the effect of full-body camouflage in the night.

Supreme Treasure had already made an improved version of Xiaohu's auspicious suit according to the instructions in the encyclopedia, which was more suitable for him to hide himself in the jungle.