"Ah, it's okay, it's okay, I'm thinking about it."

I hurriedly agreed.

"I want to do laundry in the afternoon, do you have any ...... that need to be washed?"

The more Yan Su spoke, the quieter his voice became.

No matter how dull I am, I know what she wants.

"No, no, it's all washed."

I hurriedly stood up and gestured as I spoke, I didn't know what I was gesturing, I just wanted to be natural, even though it backfired.

"Okay."

A hint of loss flashed in Yan Xu's eyes, and he turned around and walked out.

She definitely liked me.

I like her a lot, too.

Sun Hao also likes her.

This......

I slammed my head!

I'm on a mission now.,What do children look like?,Wait until the task is completed!

Just as he was about to go out for a walk, Cao Hua pushed the door and came in.

"Didn't take a lunch break?"

Without waiting for me to open my mouth, Cao Hua asked me first.

"The days are short and the nights are long, and there is no time for a lunch break, so I'm thinking about going out for a look."

I want to finish using the horn to attract the living corpses as soon as possible.

"I turned around, nothing happened, Lao Yan and He Yang sent them food."

As soon as Cao Hua finished speaking, Yan Liangyi came in with He Yang.

Several people sat together, Yan Liang started to make tea, and I asked about the situation in the prison.

Yan Liangyi poured a cup of tea, pushed it over, and said with a smile:

"I wanted to say something, Feng Yuan's old boy, I just interrupted, this Feng Yuan, it's not simple."

"Great Leap, they didn't bully him?"

I can't help but be a little curious, it seems that it should be reasonable for the three of them to partner up to bully Feng Yuan.

"Not only that, they get along quite well, and now they're in a group."

Hearing Yan Liangyi say this, I chuckled in my heart.

The original three villains, plus this scheming Feng Yuan, is not a good thing!

Looking at Sun Hao's virtue just now, if he is rebuffed by Feng Yuance......

"Will Sun Hao do anything out of the ordinary?"

I voiced my concerns.

"Look at Sun Hao's whole scene just now, this person is very ambitious, but he doesn't have a city government at all, and several people around him have offended him, so he should go up and gamble with himself at this time, and nothing should happen."

In Cao Hua's eyes, the current Sun Hao has no threat.

"I'm afraid he'll go to the prison people."

Yan Liangyi handed me a cup of tea and said.

My scalp tightened, and Yan Liangyi thought of going with me.

"Yo, it's really hard to say, Zhijie, you must put the key away."

Cao Hua admonished.

I touched the key on my waist again and nodded.

Just chatting with each other, the sky gradually darkened, and Wang Dongru walked into the restaurant with a piece of paper in his hand.

"Didn't you sleep again?"

Cao Hua asked.

"Ah, I can't sleep Brother Cao anymore, I can't sleep at night if I sleep again."

Wang Dongru said and sat next to me and spread the paper on the table:

"I've almost calculated, the hertz and decibel number of the sound are all key data, with our existing loudspeaker, after recording the sharpest sound, adjust to the maximum volume, and it can only spread about ten kilometers, I have improved the loudspeaker, and now it can almost reach twenty kilometers, which is already the limit, if you want to expand the range, the only way is to make a large expander."

"If I want to spread close to a hundred kilometers or so, how big of a megaphone do I need?"

I listened to him hard, digested it, and continued to ask questions.

"That's hard to do...... There will also be some loss in the process of sound propagation, and the propagation loss in the open environment is faster, and if it is 100 kilometers, the amplifier is estimated to be as big as our building......

Wang Dongru looked very embarrassed.

Such a large megaphone, with our current capabilities, simply can't be made.

"Air defense siren, that thing is easy to travel 100 kilometers, I watched the news before, and the air defense siren in some areas can spread up to 200 kilometers."

Cao Hua said.

"That requires too much equipment, and it's too big, and with the current conditions, it can't be made at all."

Wang Dongru explained.

"There should be an air defense siren in the urban area, but I don't want to go there to sound it, what I want is to bring out the living corpses around and even in the urban area to eliminate them in a unified manner, rather than introducing them, such a large urban area, in fact, it is very likely that there are survivors, which is one of the reasons why the army did not carry out a devastating blow, and the second is that reconstruction is a big project, and now most of the living people have become living corpses, and under the premise of a sharp decrease in the number of survivors, unnecessary destruction will definitely affect the reconstruction after the disaster."

Now, it's my turn to popularize science with the two of them, as far as the existing modern weapons are concerned, the earth can be destroyed, and only living corpses are really not a problem, but human beings must continue to survive, and the army cannot use extreme military methods, so it can only be cleaned up with small-scale armed forces.

Yan Liangyi pondered for a long time and said:

"Since it is an elimination, we might as well find a place in the middle of the city and here first, spread the sound, so that the urban area is good, this service station is good, it will be safe within ten kilometers around, and then go to the city to trigger the alarm, and wait for the living corpses within a radius of 100 miles to be brought to the city, let's turn off the alarm and trigger our sound device again, so safe and labor-saving, it needs to be operated twice."

"It's a feasible solution, but who's going to turn off the alarm then."

Cao Hua raised new questions, apparently pondering every step.

"...... that can time the switch to"

Wang Dongru said helplessly, maybe these are ordinary common sense in his eyes......

"That's fine, that's it!"

Cao Hua instantly became excited.

"Don't worry, let's discuss how to eliminate the corpses that we have attracted? I only have one grenade left. ”

I was a little puzzled, Cao Hua thought very carefully, why didn't he mention this stubble.

"I have to ask Cao Hua about this."

Yan Liang squinted his eyes and picked up the teacup after speaking.

"College student, S nitrotoluene, can you match it for me?"

Cao Hua patted Wang Dongru and asked.

"Ah...... Actually, yes, nitric acid and sulfuric acid are fine, and you also need glassware, I'll make a list for you. ”

Wang Dongru should have heard this kind of professional term come out of Cao Hua's mouth, a little incredible, and turned around to find a pen and paper after speaking, he should have understood Cao Hua's purpose.

"At that moment, the two of us will go to the city, and then go around to find the location where the mines are buried, and in the next two days, let the buddies show you the housekeeping skills."

Cao Hua's expression was obviously in his chest.

I asked Cao Hua about explosives before, and that time he and I said that the raw materials were not good, and now it seems that with Wang Dongru, a nerd, it seems that all chemical material problems can be solved.

After taking Wang Dongru's list, I didn't forget to ask how far the explosion of the explosives made by Cao Hua with this material would spread, after all, before burning the train, a burning bottle explosion attracted a group of corpses, I dare not forget this matter.

Wang Dongru pushed his glasses and began to popularize science again:

"This has reference data, a homemade bomb like his, if the individual is less than 100 grams, the sound can penetrate six or seven kilometers away is almost the limit, but the power is enough to kill the living corpses around."

When I heard this, I put my mind at ease, and the two of them went to the gas station to get a barrel of gasoline to fill up the luxury car and run to the city.

I was already familiar with the road again, and I drove straight to the hardware store where I was last visited.

This store is very complete, there are special chemical raw material classification shelves, I took the list, compared it word by word, looking for these unfamiliar words everywhere.

In my eyes, beakers and measuring cups are glass cups, and condensers and measuring cylinders are glass tubes...... Not to mention the weird bottles and cans.

I simply found a cardboard box, put the previous materials at the bottom, took two or three of each bottle and put it in the cardboard box, picked it up, and beckoned Cao Hua to prepare to retreat.

Cao Hua was taking a hanging of firecrackers to look at it carefully, and when he saw that I had finished purchasing, he took the firecrackers, picked up a shovel from the shelf, pushed the door and walked out.

These two visits to the city went smoothly, and I even felt as natural as when I used to go home and go to the county seat to buy something.

As I drove through the car and looked at the street scene that I was passing through quickly, I silently thought:

If you lure all the living corpses out of the city, it will be much safer to come and get things again.

Of course, it would be more convenient if you could move in.