Apocalypse Rebirth: 3000 million won at the beginning

The western section of the outer city wall.

The militia captain, Wang Xin, was directing his men to shoot at the Vajra zombies below.

Under the attack of the sonic zombies, the guillotine became extremely fragile. The vibrations generated by the sonic impact on the guillotine made its operation extremely unstable.

In addition, the collision between the climbing King Kong zombies and the guillotine can easily damage the guillotine.

"What's the situation now?" Li Gang rushed over in a small electric scooter.

Upon seeing that it was Li Gang, Wang Xin quickly reported, "We are currently focusing all our efforts on killing the King Kong zombies. Forty blades have been damaged on the first layer of the guillotine in the wall. When will the people from the military industry department arrive?"

Li Gang frowned deeply. The zombies in this sea fog disaster were more troublesome than he had imagined.

The series of troubles caught him off guard.

"We'll be there soon." As soon as Li Gang finished speaking, a group of people poured out of the elevator in the wall behind them.

The zombie researchers Bai Jie and Ma Di, along with Lao Zhou and Qin Feng from the military industry department, and even Meng Yu and a few other doctors, also came.

"You've finally arrived. The most urgent thing now is to find the location of the zombie emitting the sonic waves. If this continues, the first layer of moving guillotines will collapse." Li Gang ran over to them as soon as he saw them.

Old Zhou slowly took a silver machine out of the box.

"Could you please bring over a table?"

Li Gang looked at his teammates behind him, and the two teammates immediately ran towards the watchtower.

Before the table was moved over, Lao Zhou said to Li Gang:

"I spoke with Dr. Meng Yu and the others on the way here. The injured people you evacuated earlier all experienced dizziness, nausea, and vomiting. The most serious one had blurred vision and difficulty breathing."

"We roughly judged that this kind of zombie emitted infrasound waves. We simply call this kind of zombie a sonic resonance zombie."

While the previous screaming zombies also emitted low-frequency sound waves, the frequency was not as low, and they mainly relied on pulsed high-noise vibrations, which could cause the eardrums to rupture.

However, the sound waves emitted by this kind of acoustic resonance device should be below 20.

We'll need to use instruments to determine the exact amount.

Seeing his calm demeanor, Li Gang asked somewhat anxiously:

"Could we find this kind of...sound wave...sound wave resonance corpse?"

After hesitating for a few seconds, Lao Zhou said:

"It should be possible. This machine can be an infrasound detector, which can detect the frequency and the location of the emission."

"However, this machine is not the most powerful. We also have a military-grade, ultra-large infrasound detection device in our base, which was previously removed from the destroyer. However, it is too large for us to bring over."

Just then, two combatants carried a table over. "The table is here."

Old Zhou placed the infrasound detector on the table. This device must be used on a stable surface to detect any errors.

That's why Lao Zhou insisted on having a table.

After placing the infrasound detector on it, he quickly plugged it in and started the device.

To prevent the equipment from getting wet in the rain, several combat personnel even brought over a small shed.

Drop drop drop-

The infrasound detector was turned on and emitted a sound after ten seconds.

Old Zhou quickly stood behind the infrasound detector, looking at the text and images displayed on the screen.

"Captain Li Gang, it is indeed infrasound, and it is infrasound of 8-12 Hz. Infrasound of this frequency can easily resonate with human organs, such as the eyes and lungs, which is why it can cause temporary blurred vision and difficulty breathing."

"No, it's gone down again. It's only 7Hz now."

Old Zhou's expression changed drastically. Staring at the image on the screen, he quickly shouted to Li Gang:

"11 o'clock position, 200 meters away. Left and right spacing approximately 100 meters. Quick!"

"That sonic resonance corpse is probably in that area."

Li Gang looked sharply in that direction, but the location wasn't precise enough, and there were just too many zombies below, so he couldn't pinpoint which sonic resonance zombie it was.

But if this sonic resonance zombie continues, the entire first layer of mobile guillotines on the western side will be rendered useless.

He immediately gave Wang Xin the following order:

"At 11 o'clock, at a distance of 200 meters, with a spacing of 100 meters on the left and right, fire eight mortar rounds."

"receive."

Wang Xin quickly made the arrangements.

The people working under him moved very quickly, calibrating and adjusting the height in one smooth motion.

First test shot. Deviated.

The second shot hit the area, but the infrasound detector still showed that the sonic resonance corpse was still there.

Immediately afterwards, eight more shells were fired.

They blew up the area they described, which was several tens of meters in radius.

Li Gang suddenly felt much better, and his anxiety subsided considerably.

It felt like I had been standing on the edge of a rooftop, about to fall, and now I had landed safely, as if my heart was no longer being held.

"The sonic resonance corpse is dead!" Old Zhou breathed a sigh of relief, took off his headset, and said to everyone.

Then he added:

"The reason we were so tense just now was because the frequency of the sound waves emitted by the resonant corpse was getting lower and lower. Once it drops below 6Hz, it may be close to the natural frequency of the human abdominal internal organs, causing strong resonance, which can lead to violent vibration or even rupture of the organs. This is the most dangerous range of infrasound frequency."

"In this way, we also have many infrasound detectors in our base, among which the super-large infrasound detector has the best effect and the highest detection accuracy."

In addition, we need to build a system that uses a multi-sensor array to capture infrasound signals and calculates the location of the sound wave emission point by analyzing the time difference, with a positioning accuracy of within 10 meters.

The location of the acoustic resonator can be pinpointed within 10 seconds.

Li Gang thought for a moment and asked:
"Why haven't we encountered these sonic resonance zombies at the city fortress? What are they doing there?"

After pondering for a moment, Old Zhou replied:

"There are fewer people there, so we haven't encountered them yet, but they and even the people at the headquarters will be slightly affected, it's just that the distance is relatively far, so the impact is relatively small."

"I think the best solution right now is to temporarily transfer a dozen or so infrasound detectors from the headquarters base, and you can use them for the time being."

Simultaneously, our military industry department built a complete system on the outer city wall, relying on that ultra-large infrasound detection equipment and multi-sensor array.

Once the system is established, it will be able to cover an area of ​​100 kilometers in radius. We will then provide you with the exact location of the sonic resonance targets, allowing you to conduct precise strikes.

Li Gang scratched his head and asked:
"What range did you just say you could pinpoint precisely?"

He considered the range of the location and then matched it with suitable artillery.

Otherwise, each time they discover something, they would have to fire at least ten shells.

"A ten-meter radius, which is equivalent to a 100-square-meter space," Lao Zhou replied.

A suitable artillery model quickly appeared in Li Gang's mind: a 120mm mortar with a kill radius of about 20-30 meters and a coverage area of ​​over 100 square meters.

It is the most suitable type of artillery.

"Okay, how long will it take you to set it up?" Li Gang asked.

“One day,” replied Lao Zhou, the chief technology officer of the military industry department, confidently.

Li Tie looked at Lao Zhou with some admiration and said readily:

"Okay, no problem. Get more infrasound detectors over as soon as possible. The buffer city wall area is so large, and although we haven't encountered the city fortress yet, we might encounter it in the next day."

We need to prepare everything.

"Okay." After saying that, Old Zhou turned and left.

He left abruptly, without even saying goodbye. The other people from the military industry department quickly followed him.

Li Gang looked at Lao Zhou and thought to himself:
As expected of a top expert from the military industry department, he was able to come up with a solution in less than ten minutes.

Cow.

After Lao Zhou and the others left

Bai Jie and Ma Di were left somewhat awkward; they mainly studied zombies and were involved in biotechnology.

Old Zhou, who studies engineering technology, was unable to see this infrasound zombie, so Bai Jie, Ma Di, and the others were naturally not as good as Old Zhou.

Bai Jie coughed and said:
"Then we'll go back too."

"Okay, thank you for your hard work." Li Gang nodded.

"Oh, right," Bai Jie suddenly remembered the new type of zombie they had just been researching and made some discoveries, so she casually reminded Li Gang:
"Among the new types of zombies we just captured, one type has extremely hard fingernails that are shaped very similar to a hoe. This type of zombie should primarily attack with its fingernails, and we've named it the Tunnel Zombie."

We found a lot of dirt in their nails.

Therefore, I'm worried that these zombies have a digging habit! You'd better keep an eye out, in case any of these zombies are digging holes under the wall.”

"What?!?" Li Gang's expression changed drastically.

God!

Heavenly Bodhisattva!
Oh my God!

A wave of unrest, a wave of up again.

Two waves already, and here we go again!
What are they most afraid of? They're most afraid of zombies that can dig holes.

There have been previous discussions about the emergence of zombie rats, and how they should deal with a large-scale zombie rat horde.

However, this topic has been discussed for a long time, but no reasonable solution has been found.

Perhaps it was fate that favored them, but as mammals, rats have been unable to transform into zombie rats in all these years of the apocalypse.

Once a rat is caught by a zombie, it will die. Even if it is bitten and manages to escape, it will be infected with the zombie virus and die directly, instead of turning into a zombie rat.

But now.
It's possible that a zombie that can dig holes has appeared!

Seeing Li Gang so flustered, Bai Jie quickly said:

"But you don't need to worry too much. Most of the ground in our base has been hardened, and the passage between the fortress and the base is made of C140 concrete. These zombie claws cannot break through our concrete walls."

In addition, Lao Zhou just gave me an idea: the digging frequency of these zombies' claws must be specific. If we use a sonic detector, we should be able to find these zombies as well.

Furthermore, if it were possible to use acoustic resonance to directionally break apart the fragmented claws through the resonant frequency of the sound waves.

"Hmm, it's just a possibility," Bai Jie added silently to herself.

Li Gang breathed a slight sigh of relief after hearing her say that.

However, this discovery really gave him quite a shock.

The zombies of the past were never this strong. With the arrival of the sea fog, so many different kinds of monstrous zombies have appeared.

"I will have people keep an eye on this, and you should also try to come up with a solution as soon as possible."

"I know." Bai Jie saw the elevator that Lao Zhou and the others were waiting for arrive and quickly ran over.
"Old Zhou, wait a minute, I have something I want to discuss with you."

After the people from the Military Industry Department and the Zombie Research Department left, Li Gang wiped the sweat from his face.

I was filled with mixed emotions.

Zombies have evolved to the point where they can no longer be dealt with simply by firepower.

Technology is also needed to defend their city.

Without these scientific researchers, the camphor tree would probably have collapsed long ago.

Wang Xin, standing beside him, still looked terrified.

"Captain Li Gang, what should we do if these zombies dig dozens of meters into the ground and reach the city?"

Li Gang gritted his teeth and calmly said:

"What's there to be afraid of! Didn't Minister Bai just say that they can come up with a solution?"

"Moreover, the foundation of our outer city wall is tens of meters high, and the ground on both sides of the wall has been hardened. Unless the zombies can dig down tens of meters, they would have to cross hundreds of meters to reach the inner city of the outer city."

"Even if we take the worst-case scenario into account, Minister Bai and his team's method is not feasible. The tunnel crew dug a tunnel tens of meters deep and hundreds of meters long, and entered the edge city."

We have the antidote for zombies! Inject the antidote and everything will be fine!

After hearing this, Wang Xin's complexion improved considerably.

He was so nervous just now that he forgot there was such a thing as an antidote for zombies.

The main reason is that there haven't been any zombies on land for the past year, and no one has been infected with the zombie virus, so the antidote for zombies hasn't been used much.

As long as they have this zombie antidote, even if they are bitten by a zombie, as long as it's not a fatal wound, they can survive with just one injection of the antidote.

Li Gang looked towards the elevator, a thoughtful expression on his face, and said:
"Send a few people over there to help retrieve the infrasound detector."

"Okay." Wang Xin quickly gave the order.

Li Gang was also worried that more zombies might appear later, so he made preparations in advance in various corners of the wall so that he could deal with them in time.

This time, facing zombies in the sea fog, he no longer had the ease and confidence he used to have when facing them.

This time, the zombies they faced were endless, and much of their previous preparation was rendered useless.

This will severely test their adaptability.

However, after ten years of development, Dazhangshu has accumulated a wealth of talent, technology, and various equipment and support.

It already possesses the capability to withstand emergencies.

soon.

The infrasound detectors were transported to the twelve city fortresses, and three units were allocated to each of the responsible areas in the southeast, northwest and southwest walls of the buffer city.

After a series of setbacks, good news finally arrived.

Su Yan, the person in charge of repairing the gate valves on the buffer city wall, contacted Li Gang:
"good news!"

"The replaced manganese steel and tungsten steel alloy guillotine blades performed well in collisions with the King Kong zombies."

Although there is still wear and tear, the wear rate is significantly reduced.

Furthermore, in tests against other reptilian zombies, the blade was sharper and cut more effectively than simple manganese steel or tungsten carbide guillotines!

Upon hearing this good news, Li Gang finally managed a rare smile.

"Good."

"Then notify Zhao Sunli at the knife factory as soon as possible and have them modify more of these guillotines!"

"Yes!" Su Yan turned and left excitedly.

Li Gang looked up; the brim of his hat couldn't shield him from the rain falling from the sky.
Hmm? Not rain?
Snow?
Snowing?
Li Gang stared at the swirling snowflakes, his mind going blank for a moment.

Why has it started snowing?

As he stepped on the frozen ground, a sense of desolation welled up in his heart.

"Li Gang." A voice came from behind him.

He turned around and found that it was the Deputy Minister of the Military Department, who was also his maternal uncle, Liu Jianwen.

Next to Liu Jianwen was Yi Jing, the commander-in-chief of the city's fortress.

The two arrived together.

(End of this chapter)