Chapter 244 Liquid Nitrogen Freezing

Thinking of this, Yu Yifeng suddenly had an idea and jumped up.

He shouted loudly into the communicator: "Liquid nitrogen! Everyone, look for liquid nitrogen! Or ice cubes will do... As long as it can lower the temperature. These insects are afraid of low temperatures!"

"Yes, yes, yes!" Several people who reacted quickly immediately dug out a few liquid nitrogen cans from a corner and shouted anxiously.

In addition, there is a lot of ice cubes in the food freezer!

The voices of other vehicles also sounded in the headset: "Can dry ice fire extinguishers be used?"

"Yes, as long as it is a low-temperature object!" Yu Yifeng replied immediately.

Liquid nitrogen and dry ice are commonly used materials in laboratories. They are also used to quickly freeze food and make fire extinguishers, so there are still some reserves in the car.

After two minutes, Yu Yifeng roughly counted and was a little disappointed.

"Is that all?"

But now that things have come to this, they can no longer force it. When we left the flight base, we didn't know what to bring. These things were brought up in a hurry, so the quantity must not be large.

In less than a second or two, Yu Yifeng accepted this reality and said loudly: "Okay... Everyone, turn the power armor to the minimum, then spray some water on your body, and then spray some liquid nitrogen or dry ice to lower the surface temperature."

"Everyone take what you need and get ready to go! We can't waste time here!"

"Captain, let me go out and try first!" Zhao Yao gritted his teeth and said first.

We can't let Yu Yifeng take the lead in everything.

To be honest, in Zhao Yao's mind, Yu Yifeng's life is more important than all of them combined!

Yu Yifeng was stunned for a moment, then nodded solemnly. He first sprayed some water on Zhao Yao, and then sprayed some liquid nitrogen. The temperature of liquid nitrogen is -196℃. In just a moment, it mixed with liquid water to produce a white mist, freezing the water into ice beads.

"Be careful, come back immediately if anything goes wrong!"

"Yes!"

Zhao Yao opened the door with a brave face, and then jumped out first...

Facing the endless army of black insects, Zhao Yao's heart was beating wildly, and he felt that the blood in his body was about to boil! There were even a lot of densely packed black insects under his feet, and these black insects flew up nimbly before he stepped on them.

Facing the direct threat of the god of death, he was of course afraid, especially after witnessing the death of several comrades...

Their entire faces were like being splashed with sulfuric acid, and even their skulls were corroded. How could he not be afraid?

But some things are more important than death. As a soldier, you must face what you should face. When you encounter danger, you must bite the bullet, otherwise what kind of soldier are you?

Since you have stood up, you will never retreat!

Zhao Yao made up his mind and stepped forward...

However, the situation has obviously improved. These black insects feel the low temperature, as if they are very disgusted, and they have no intention of stopping at all, and they have moved away from this ice man.

Seeing this scene, Yu Yifeng was overjoyed and shouted loudly: "Did you see it? They are afraid of low temperatures! Everyone bring your own things, and then use water and liquid nitrogen to lower the temperature of the power armor surface!"

"Let's set off immediately!"

"And... bring all the incendiary bombs and fuel!"

The unknown is always the most terrifying, and fear often comes from human imagination. Humans always imagine some strange things to scare themselves.

However, when everything has a reasonable explanation, this kind of fear is completely gone.

This large group of black insects is the product of natural evolution, not a nonsensical alien, nor the legendary Zerg...

When people saw Zhao Yao intact in the swarm of insects, the panic in their hearts slowly calmed down.

They tried to step out of the door and found that there were no insects biting them, and they were relieved.

Yu Yifeng frowned and estimated in his mind that even if they were more economical, the refrigerant gas in people's hands would only be enough to sustain everyone for about four to six hours, which was shorter than the time of a nuclear explosion.

That is to say, it is best to find an exit and escape from this cave within four hours!

"Follow up, follow up quickly!"

Before setting off, they also turned the engines of the three tracked vehicles to the maximum, but all of a sudden, a large number of insects surged wildly again.

Then another incendiary bomb was dropped, and the three dead people rested here forever...

There is no way, the current human team has no way to bring them to the ground.

While the insect swarm was rolling wildly, hundreds of people with frozen bodies took the opportunity to rush out. Yu Yifeng walked at the front of the team, and Zhao Yao and several other senior soldiers walked at the back to maintain order in the team.

There were also soldiers carrying stretchers in the middle of the team. Several patients who had broken legs and injected with broad-spectrum immune reagents had lost their ability to move and had to be carried.

Because of the power armor, this was not considered a heavy job.

As for how to go and which direction to go...

First, rely on the compass to find the approximate direction. Second, the geologists will draw maps while walking. They carry professional work computers and can fully draw the path they take with their personal professional qualities! Third...of course it depends on Yu Yifeng's intuition.

In fact, although they managed to escape the disaster temporarily, people's morale was still low. Three brothers died, and they worked together and met each other every day. No one could be happy.

But the crisis has not passed yet, and people have no time to think about other things. In addition, the underground caves are full of strange landscapes, which have dispersed people's sadness to a certain extent.

The diversity of underground creatures on Nix Star is completely beyond people's imagination!

Not to mention the strange insects, there are also animals of all sizes. The smallest is only the size of a person's fist, and the largest is comparable to a monkey!

Most of these creatures appear in groups, and they generally have scales that resist acid. From the perspective of human aesthetics, they look really ugly, and they are hideous and abnormal, just like underground aliens.

Affected by the insect tide, they drilled out of the cave one after another and hunted.

This kind of insect that can easily corrode human helmets is actually at the bottom of the cave food chain. It's incredible!

There was even a group of small rat-like predators that confronted the human team for a while!

However, when people threw a few pieces of ice to make them feel the cold breath, they left immediately.

Heat energy is the most precious thing in the cave!

No creature is willing to fight with these strange-looking, cold steel.

"The surface temperature has reached 11 degrees Celsius, and it may be higher if you go down. It is completely capable of supporting large life. It is a miracle! A miracle created by geothermal heat." A biologist had to sigh.

However, at this time, no one had time to capture biological specimens. Because they were delayed for two hours, people were speeding up their journey and wanted to find the exit of the cave as soon as possible.

Yu Yifeng also explicitly prohibited people from shooting and killing the creatures here at will.

Because shooting will inevitably generate heat, which may trigger attacks from other creatures.

It is better to do less than more. Capturing biological specimens can only be discussed later. The most important thing now is to escape from the cave and escape before the nuclear bomb explodes!