Now that I'm thinking about what to do, it's better to go back to the question-and-answer mode.

Question 1: Where is the other party now?

This question is not operable, start again.

Question 1: How do you know where the other person is?

It's easy to go and take another look at the other side, it doesn't take more than two minutes, but it's risky.

In any case, those people have already killed people. Zheng Rui can't understand this kind of killing without being threatened by survival for the time being, but what can be known is that these people who kill people under unforced circumstances are beyond the scope of normal human beings. They could no longer follow normal human social patterns, and if they met, she would not be able to predict their behavior.

Therefore, you can't rush to them.

So what to do?

You can't leave them alone. As I have just judged, these people can no longer be predicted by normal human social patterns, and therefore there is no way to predict whether they will attack the commissary. Although Zheng Rui should be considered relatively strong, and Bian Na also has a certain combat ability, she is outnumbered after all.

You can't meet, you can't wait, it stands to reason that you have to escape.

But...... Do you really want to escape?

The commissary is a godsend, and its isolation from other crowded areas is also very conducive to the survival of a small number of people. It stands to reason that Zheng Rui could have survived until the army took over in the future, if there were no people on the other side.

She doesn't want to give up for the time being, Zheng Rui has already made this place her territory.

So what should I do if I can't meet openly and wait here, except for abandoning my territory?

Zheng Rui suddenly realized that the tactic of breaking down one by one may not be impossible, but it may be a little risky - it depends on luck.

"I have an idea." Zheng Rui said emphatically to Zuo Youcheng and Fang Tong, "I especially need the help of the two of you." ”

"No problem, listen to you." Zuo Youcheng immediately said seriously.

"It's not that difficult, haven't you two ever observed the activity time of the alien?" Zheng Rui said, "It's still time to observe the activity, but it's just to observe the other side." It's best to be able to predict which basements they are in and how the number of people will be distributed. ”

"That's fine, my brother's vision is 2.0." Zuo Youcheng immediately reached out and patted Tong's head, which was sitting on the ground one meter lower than him.

"Sister Na, how is your eyesight?" Zheng Rui asked Bian Na again.

"I ...... A little short-sighted. Benna muttered awkwardly, "About fifty degrees, but I'm not used to wearing glasses." ”

"I'm also short-sighted, I'm more than 100 degrees nearsighted." Zheng Rui scratched her hair, walked to the counter of the commissary, opened the drawer and took out a glasses case, "This seems to be the glasses of the previous commissary owner, I tried it and thought that the prescription was deeper than mine, so I didn't wear it." But you should be able to use it if you aim. ”

"Aim?" Benna asked, a little surprised.

"Sister Na, when the time comes, I will squat in the green belt of the opposite community, and when their boss comes out, you will take aim." Zheng Rui said, "If you can aim at it, although the divergence of the electromagnetic beam from a distance may be a little large, the interference caused by burning your head should be big enough, take this opportunity for me to go up, and it is best to solve it with one knife." ”

What she said by "getting rid of" obviously meant the killer, and in the current situation, it is far more difficult and risky to abolish a person than to directly wipe the neck. But the other three did not raise any objections, apparently because they also knew that the other party had killed their former allies, and in that sense they were no longer human in the social sense.

"But...... You can't just know their activity time in advance, right? What if it was supposed to be one person coming out, but everyone came out, wouldn't it be ......," said Ben Na with some concern.

That's a bit of a question.

Zheng Rui explained with some excitement: "In order to avoid this, you need to know what they are doing in real time. This is actually easy, we can maintain the connection of consciousness, share a map, the sentry person will mark the real-time information of the enemy on it, and the ambush person will know the specific situation at the moment. ”

This is exactly how she and Bian Na simulated the actual combat when they tried to connect their consciousness for the second time, and I believe that Zuo Youcheng and Fang Tong, two young people who at least played a multi-player battle game, would not be too unfamiliar.

"That's it, you have to practice." Zheng Rui added, "And it is necessary to test the relationship between the time that the consciousness connection can be maintained and the amount of blood given." ”

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【August 22nd 12:30】

Test of blood volume and duration of consciousness connection:

Instruments & Materials:

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When she wrote this, Zheng Rui thought for a moment that she wanted to use a container to quantify the blood used each time. The most commonly used bottle is a drink bottle now, but that thing is too big, and she may not be able to put a bottle of blood once, which is really a waste.

But fortunately, Zheng Rui had a strange habit of drinking Coke with a Coke bottle cap when she was in junior high school, so she specially checked the volume of a 500mL Coke bottle cap, which was about 4.5mL. In this way, it can be almost quantitative.

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【August 22nd 12:30】

Test of blood volume and duration of consciousness connection:

Instruments and materials: 500mL Coke bottle cap, fresh blood of the experimenter, mechanical watch

Experimental process: take fresh blood and fill three bottle caps, give them to three subjects respectively, and start with the timing of t0; When the consciousness connection is established, the time t1 is recorded, and the subject follows the mechanical watch to count the seconds in the consciousness connection. Time t2 is recorded when the conscious connection is lost. Repeat the experiment with an increase in the amount of blood given (Coke cap, 4.5 mL) each time.

[Table: Blood Dose and Maintenance Time]

J=-D·dc/dx (crossed out)

∂c/∂t=D·∂^2c/∂t^2 (crossed out)

Suppose Gaussian distribution: f(x)=exp(-x^2/(2σ^2))/(σ√(2π))

[Calculation Process] (all crossed out)

Suppose the corresponding σ/t1=cV, where c is constant:

[Calculation Process]

c=0.55

Suppose △t=bV:

[Calculation Process]

b=61822

Conclusion: The effective movement velocity parameter of effective particles in the blood from the blood feeding point to the brain (hypothetical) c=0.55m·s^-1· L^-1, the maintenance time △t was proportional to the blood volume V and the proportionality coefficient was b=373333s/L.

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Since materialization was learned in the first semester of the third year, and now it has been returned to the teacher, Zheng Rui really can't figure out the diffusion thing on her own. Just remember that Fick's law is useless, and I have to set up a "universal" Gaussian distribution, but in the end I have to use my own linear fitting hypothesis, the only guarantee that it can be calculated.

However, given that the blood is given at such a distance from the mouth to the brain, a linear fit should be sufficient. If you calculate it this way, it is actually equivalent to the effect within ten seconds after giving blood, and after the effect, a bottle of blood can last for about twenty minutes. A simple scaling of the coefficients can roughly estimate the effect of changing the dose, but the measured coefficients will facilitate subsequent quantification.

These are two very important parameters, which Zheng Rui copied to the last page of the experiment notebook.