Whoosh...

The elevator climbed quickly and led to the highest point vertically. Chen Ya also took out the second-hand Geiger counter he bought yesterday. After pressing the switch, the value was immediately calculated on the micro electronic blue screen:

Current radiation value: 315msv

Soon, when the elevator reached the highest point, Chen Ya and his friends had just walked out of the elevator, the Geig counter in his hand began to make a sound.

Sizzle... Sizzle... Sizzle...

The next second, the radiation value soared rapidly.

Current radiation value: 563msv

Current radiation value: 785msv

Current radiation value: 9o6msv

...

The Geiger counter jumped several times in succession before stopping.

“9o6 millish.”

Chen Ya's eyes twitched, almost three times more. Fortunately for the children, as long as the radiation value is only one thousand millimeters, the body will not have much impact.

To put it a little bit, the radiation value is the radiation dose per hour.

The maximum radiation that the "ordinary" human in the previous life can withstand in a year is 1 ooo millimeters. Radiation less than 1 ooo millimeters in a short period of time is not harmful to the human body.

In other words, the hourly radiation dose on the wall is equivalent to the maximum radiation that ordinary people could withstand in a year a hundred years ago.

It's no wonder that humans mutate.

Now, the mutant's resistance to nuclear radiation has been greatly improved.

If compared with ordinary people a hundred years ago, the basic data should be:

Ordinary people

First-level boundary: 1oo millimeters

Secondary endurance: (year) 1ooo millimeters

Level 3 death: 6 Xiwot, which is more than 6 ooo millimeters, will directly kill.

...

Mutants (children)

First-level boundary: 1ooo millimeters

Secondary endurance: (time) 2 sirvot, both 2 ooo millimeters.

Level 3 death: 15 Sifot, which is more than 15 ooo millimeters, will directly kill.

...

Shivot is a large unit, which has been introduced in the previous article.

The first-level boundary represents that the human body's "harm boundary" will be affected by radiation after passing the value. For example, the leukocytes in the blood are reduced. If you stay in this environment for a long time, you will have a higher chance of getting sick.

Secondary endurance means that the human body's "endurance limit" exceeds the numerical value and will suffer from radiation disease.

Level 3 death represents the "lethal dose" of the human body, and it is a one-time death, and it is not a struggle.

...

As for the types of ‘nuclear’ radiation, I won’t talk about it here.

There is still a chance to popularize science in the future.

At this moment, Chen Ya and his friends came to the wall and saw that it was gray in the distance, as if they had climbed a hundred-meter-high skyscraper. The pedestrians under the south gate behind were also turned into the size of an ant.

The width of the wall is about thirty meters, the ground is made of concrete and lead plate materials, the surface is mottled, and there are even some dark blood stains.

Obviously, there have been many battles on the wall.

In addition, some heavy artillery were placed inside the eaves of the wall on the outside, and there were also many guards who were guarding.

But he saw Chen Ya and four friends walked straight to a guard, raised their right hands and saluted:

"Hello Uncle Guard."

The guard in combat uniform immediately returned a standard military salute.

You read that right!

It is the traditional military ritual of China in the previous life. In addition to feeling very close, Chen Ya also said three words in his heart.

Guardian

Or, it should be called the ‘human’ guardian.

This is a special group, because their predecessor was the soldiers of various countries before the catastrophe. They had firm beliefs and tenacious fighting will, and the guardians remained neutral regardless of the situation.

The reason is very simple.

Although the nuclear war before the catastrophe was inseparable from the soldiers, the real culprit was the one who issued the order. After all, the soldiers took obeying orders as their duty.

Of course!

The real reason is...

Once a nuclear war breaks out, it will be basically difficult to stop unless the earth's environment is greatly changed.

Just like the fuse of World War II, it was a chain reaction.

You won't fight?

Someone else bombs you with a nuclear bomb, won’t you blow it back?

The reason is that simple.

After the catastrophe, facing the high dose of nuclear radiation on Earth, countries could only unite to form a community with a shared future for mankind. Although the concept of "country" was abolished, soldiers still existed and became guardians of mankind.

Even the places where humans gather are built by the guardians.

In fact, the guards were also the food and clothing parents of Chen Ya and others. The orphans in the shelter received free nutritional agents before the age of eight were squeezed out from the guards' teeth.

At this moment, the guardian said with a friendly smile:

"The radiation on the wall is high, don't play for too long."

"Know."

The five nodded one after another. It was obvious that the guardian had been used to it when he often met children who played on the wall, and he just told them to pay attention to radiation.

The damage boundary for adult mutants is much higher than that of children, and they will also wear protective clothing. The radiation value on the wall is within the safe range, but it is not suitable for long-term stays.

Chen Ya and his friends came to the edge and saw the thick radiating clouds in the distance, and knew why the radiation value rose rapidly.

Because the radiation cloud contains various radioactive substances, the closer it is to the radiation cloud, the higher the radiation value.

This is also the reason why Chen Ya speculated that the floating city could shield radiation.

Of course, the giant walls built in the gathering place are not just to isolate radiation, but more to block the attacks of mutant creatures.

Chen Ya and his friends were lying on the edge of the eaves of the wall, opening their eyes wide and looking at the dim sky outside.

The ground is very barren, with almost no grass growing, and you can only see about three kilometers at most.

After three kilometers, there is the haze formed by nuclear dust, with almost no visibility.

Seeing a barren ground, occasionally there was yellow sand spinning, Chen Ya couldn't help but say to himself:

“Is this wasteland?”

At this moment, a terrifying roar suddenly sounded in the smog three kilometers away.

Roar! ~

Immediately afterwards, a "strange" crazy corpse ghoul appeared from the thick fog.

But I saw that the crazy corpse was red all over, with a lot of cloth wrapped around my back, and my hands were tightly tied. At the same time, there was a pink balloon tied to my left shoulder and a wooden stick on my right shoulder.

Roar...roar...

The crazy corpse ghost followed the direction pointed by the wooden stick and headed straight to the east wall, which naturally attracted the attention of the guard beside Chen Ya.

The next second, the guard raised his laser rifle and quickly aimed at the target.

But after seeing the crazy zombie through the optical sight, the guard couldn't help but wonder:

"balloon?"

Although he was a little confused, the guard did not hesitate and immediately pulled the trigger.

Honey! ~

An orange-red light shone over.

The light was too fast and could not be described. In less than a blink of an eye, the crazy ghoul was shot and fell directly to the ground.

At the same time, the guard also lowered his gun.
To be continued...