Doomsday Bunker Upgrade

"DiDiDi...DiDiDi..." The phone that had set the time rang on time, waking up Chen Xin, who was still sleeping.

Reaching out and grabbing the phone, Chen Xin glanced at the time on it, put the phone back on the bedside table, yawned, then rubbed his face and sat up from the bed.

Picking up the clothes on the bed, and just putting a shirt on, Chen Xin suddenly felt a gust of cool air pass from the clothes to him.

A shiver stimulated by the coolness, Chen Xin hurriedly retracted his bed.

Wrapped in a quilt and using the residual warmth in the quilt to warm up his clothes, Chen Xin stuck his head out of the quilt and thought about what happened today, it would be so cold.

Now is not the time. If it suddenly becomes so cold in the morning before the disaster, it is estimated that it has encountered a cold snap. It is not uncommon for the temperature to drop by more than ten degrees in the autumn and winter.

And the thermal insulation effect of ordinary houses in the south is the same. The temperature outside is more than ten degrees, and if there is no heating in the house, it will drop by at least three or five degrees or more. It is normal to get cold in the morning.

But now it is the end of the world, and Chen Xin lives in a shelter with a good thermal insulation effect. Logically speaking, it should not be so cold.

Is there a problem with the ventilation system to keep warm? Chen Xin passed this idea in his mind, but quickly dismissed it.

Although he feels cold now, it is only because he has not worn much clothes on his body, and he has just climbed out of the warm bed and put on clothes with a relatively low temperature. In fact, the temperature is not unbearably cold. Degree, at least there are still a few degrees.

If there is a problem with the insulation of the ventilation duct, causing the cold air from the outside to flow in directly, the temperature will be at least minus zero.

In that case, what Chen Xin felt was not cold but ice.

Moreover, he only covered a camel hair quilt last night. Although the thermal insulation effect was good, it was not yet to the extent that a quilt could withstand the freezing temperature.

Faced with this strange situation, Chen Xin didn't think about it any more, and quickly put on the clothes next to him one by one, and crawled out of the bed.

After putting on the clothes, although the temperature before the clothes was a little low, Chen Xin felt that he was still sitting on numbness and cold, but it was not unbearable.

Especially after Chen Xin turned the sweater and cotton trousers that had been in the closet and put them on, he didn't feel cold anymore.

Previously, because of the shelter's thermal insulation capacity, even if the outside temperature dropped below zero, the shelter would still have more than ten degrees Celsius. As long as he wore a thicker jacket and had to work, Chen Xin didn't feel that it would be cold.

But today's sudden temperature drop caught him off guard.

If it was before the disaster, Chen Xin might have touched the phone to check the weather forecast before he even got out of bed, but now he can only look at the thermometer hanging on the wall of the living room after brushing his teeth and washing his face.

"Seven degrees? The temperature dropped six degrees overnight, isn't it so scary?" Chen Xin couldn't help but be surprised when he saw that the temperature on the thermometer had dropped to single digits.

I am in a shelter, not to mention the surrounding reinforced concrete walls and the thermal insulation measures inside, even the ground temperature brought by the more than 200-meter-high earth mountain above my head will not keep the temperature of the shelter overnight. Drop so much!

Chen Xin was so surprised that he didn't even bother to eat breakfast, so he left the living room and went to the public space to check the ventilation system.

However, looking at the ventilation system that was still working well, and the cool breeze that was clearly blowing out of the ventilation system, Chen Xin couldn't help but touch his face, he already understood what was going on.

Chen Xin didn't think too much about it. It wasn't a problem with the ventilation system, nor was there something wrong with the insulation of the shelter. Unless he upgraded the ventilation system again or upgraded the shelter as a whole, this problem could not be solved.

Back in the bedroom, he pulled out a temperature measuring gun and checked that it was still usable. Chen Xinyou touched a large tool hammer from the workbench, and then came to the preparation room and changed into protective clothing. After putting on the protective mask, he took the flashlight and climbed through the passage in the corridor to the small bunker where the communication antenna was placed.

As soon as the door was opened, a gust of cold wind came over the surface, instantly making Chen Xin's protective mask form a layer of ice.

Looking at the ice flower on the protective mask in front of him, Chen Xin reached out and touched it. Seeing that it couldn't be wiped off, he didn't care anymore. Anyway, it didn't affect his vision much.

Turning on the flashlight, Chen Xin glanced around the inside of the small bunker. Sure enough, as he expected, a layer of ice had formed near the vent, and the gap between the small bunker and the outside world was covered with a layer of ice. The thick layer of ice almost covered the entire gap.

Carrying the hammer to the edge of the gap, Chen Xin raised his hand and knocked it hard.

Fortunately, the ice layer is not very thick. Although it is quite strong, it can still be broken after a few knocks.

And as Chen Xin smashed the ice layer that sealed the gap, more cold wind poured in.

Chen Xin raised the thermometer gun in his hand and pointed it towards the gap where the cold wind was pouring into the small bunker. The temperature displayed was -34°C.

"Isn't it? Wasn't it minus 4 degrees yesterday? It dropped by 30 degrees overnight?" Chen Xin couldn't believe it. The horror of the times.

However, if it really cools down by 30 degrees overnight, it is indeed similar to the effect shown in "The Day After Tomorrow". After all, the Ice Age was 8-12 degrees lower than the normal temperature before the disaster, and it was not as cold as it is now. .

It's just that Chen Xin couldn't help but worry about another problem.

Before the disaster, the blue star's climate was actually abnormal. At that time, scientists said that because the environment was destroyed, and the solar activity cycle entered a minimum period, the heat irradiated on the blue star weakened, and the blue star was about to enter A Little Ice Age.

It’s just that this has always been just a statement. The Little Ice Age that scientists want to talk about has never arrived, even though the time scientists predicted is within 30 years.

But in the current situation of Blue Star, it is very likely that it will directly enter the ice age, or it is already an ice age now.

If the ice age has entered, then the extremely cold and long nights expected to last a hundred years may last longer.

Humans are creatures that need a warm environment to survive. Although we have extended our range of activities to cold areas through construction, clothing, and heating, this does not mean that humans can face low temperatures of dozens of degrees below zero. long-term survival.

Even in polar scientific expeditions, it is difficult to exercise outdoors for a long time, and most of the time they stay in the scientific research station.

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