Chapter 1627: Have you ever seen a rain ball as big as a fist?

An hour later.

Li Hang looked at his watch, walked up to Song Zhihong and asked:

"It's been an hour, why hasn't it rained yet?"

Song Zhihong observed the changes in the clouds in the sky and said to himself:

"It shouldn't be. It should be raining. Why? Could it be that the water droplets contain too many DI elements? That shouldn't be the case."

"What did you say?" Hearing Song Zhihong mumble, Li Hang didn't hear clearly.

Song Zhihong said seriously: "Wait a little longer, it should be about to happen."

Li Hang crossed his hands on his chest and raised his head to look at the sky.

A few minutes later, he saw a black shadow coming towards him.

And getting closer and closer to him, the clearer he could see.

It's raining, but why is it so heavy?

Bang!

A rainball about the size of a fist hit his head, and his hair was instantly soaked by the rainball.

"What the hell! Such big raindrops? No, rainballs!"

A rainball as big as a fist hit his head, giving him a headache.

Bang bang bang bang!

Countless rainballs fell from the clouds in the sky, ranging from the size of glass beads to the size of two fists.

Almost like hail.

Ta-ta-ta!

In the rain, some hailstones fell together.

The smallest of these hailstones were as big as a fist, and they shattered when they hit the ground.

"Run!" Song Zhihong shouted to everyone after seeing the huge hail and rain falling.

Li Yu was right next to the door of the duty room. He reacted quickly and immediately got up and picked up the stool and walked to the duty room.

This rain was so unusual.

Hailstones the size of fists can already be called hailstones.

Generally, hailstones that fall before the apocalypse are no more than the size of mung beans, with diameters usually ranging from 5 to 50 millimeters, but there are also larger hailstones that can reach more than 10 centimeters in diameter.

The size of the hail falling now is a very large hail that is rarely seen before the end of the world.

In addition to hail, there were rainballs the size of fists.

Each rainball was connected in a line, and the rain was very dense. Looking at the scene in front of him, Li Hang finally understood what pouring rain looked like.

This was more exaggerated than any rainstorm they had ever seen before!

Boom, boom, boom!

Ding-ding-ding-ding-ding!

Huge hailstones hit the iron sheet of the crane at the construction site, making a crisp sound.

Even the roofs of some cars in the buffer city were hit by hail and had small dents.

"not good."

Anya looked at the huge hailstones and asked Song Zhihong anxiously:

"Didn't you say it's raining? How come it's hailing? There's such big hail!"

Song Zhihong thought for a while and then said: "The rain bombs fired by the anti-aircraft guns have a height of more than 4,000 meters, and there is a chance of producing hail. What's wrong?"

Anya looked worriedly at the greenhouses in the buffer city and rolled her eyes at Song Zhihong.

"With such a big hail, I'm worried it will cause damage to the greenhouse!"

Li Yu frowned when he heard Anya say this from the side.

He stood up and walked over, "Song Zhihong, how long will it rain?"

"this."

Song Zhihong clasped his thumb nails on his palms and said with some anxiety:

"This time it is just a test. Not many rain gas bombs will be fired, but the cloud layer is too thick, and the effect of the tear gas bombs will be maximized. It is estimated that it will take one and a half to two hours."

"However, our rain bombs were launched in the west direction. We have delineated the test locations. The rainfall locations are mainly in the west and outside of the buffer city. There may also be some in the first outer city, but the inner city and the second, third, and fourth outer cities should be Not affected”

When Li Yu heard this, he immediately looked at Anya.

Understanding in seconds, Anya picked up the walkie-talkie to contact Li Peizhen and the others to determine whether it would rain in the inner and outer city.

After Xiao Jun heard this, he moved a table directly, raised his hands above his head and walked out of the duty room.

Look in the direction of the inner city and the outer city.

Taking the first outer city as the dividing line, there was no rainfall in the inner city and several other outer cities, but the rain on their side was extremely exaggerated.

Rainballs mixed with hail struck the table above his head, crackling.

Hail fell from a high altitude and hit his hand holding the table leg.

It hurts!

At the same time, hailstones and huge rainballs knocked the table above his head upside down, and Xiao Jun hurriedly ran towards the duty room.

call--

After entering the duty room, he breathed a sigh of relief.

He said to the people who were looking at him: "Song Zhihong is right, there is no rain in the inner city and several outer cities, but there is hail rain in the front area."

At the same time, Anya also received news that Li Peizhen was staying in the inner city, and she was relieved.

fortunately.

Such large hail may cause damage to greenhouses and affect their food production.

However, the area in front is mainly a residential area. Although it is adjacent to an agricultural production area, the greenhouses affected are limited.

Moreover, they actually have experience in resisting hail before. The greenhouses use PVC solar panels. PVC materials have high impact resistance, are not easy to break, and can effectively resist external impact and damage.

If it were made of glass, it is estimated that such a large hail would directly smash holes in the greenhouse and destroy all the crops inside.

In addition to using PVC materials that are relatively resistant to damage, they also installed anti-hail nets on the roof of the greenhouse.

This anti-hail net is made of polyethylene material with added anti-aging agents.

Can resist hail.

Anya stood at the door of the duty room, staring at the direction of the greenhouse in the buffer city, observing the impact of hail on the greenhouse.

When she saw that the greenhouse resisted the attack of huge hail, she was relieved.

In the crackling sound of rainballs and hail,

Second Uncle had a serious expression, pulled Song Zhihong aside and whispered:

"This hail rain is not quite the same as the expected result you submitted before."

Song Zhihong replied awkwardly:

"My problem, we misjudged it, mainly because of it."

Second Uncle didn't listen to him and continued, and interrupted:

"It's not just your problem, I should have let you do the experiment outside."

Second Uncle blamed himself a little, and he also had some responsibility for this emergency.

"In addition."

"Why are there such large rainballs and hail falling?"

Song Zhihong thought for a moment and said:

"I think it may be because the water droplets in the cloud contain a lot of DI elements, which makes the mass lighter. If the raindrops want to fall, they must have a large enough volume and mass, so the rain and hail will be so large."

The second uncle nodded thoughtfully, "Write an experimental summary report later, write down the defects of this experiment, and reflect on it."

"Yes." Song Zhihong breathed a sigh of relief.

Writing a self-criticism report is fine, fortunately there is no accountability.

In this huge hailstorm, the construction workers and transportation workers in the buffer city were also stunned.

Hua La La——

"Are you fucking going to die?" Gao Zhongtian threw down the iron plate on his head and cursed at his subordinates who were bruised by hail.

"I didn't expect it to be so hail." The man touched his arm that was bruised and purple, and said aggrievedly.

Gao Zhongtian said speechlessly:

"The radio has announced that we should stay indoors and not go out. Why did you have to run out and do something?"

"Brother Gao, don't be angry. I'm fine." The man with a mole on his nose smiled and approached Gao Zhongtian.

Gao Zhongtian pointed at him and was furious.

"Are you still laughing? If I hadn't come to save you just now, what would have happened if you were knocked unconscious?"

"Thanks to Brother Gao."

Seeing that he was still smiling, Gao Zhongtian sighed and shook his head and said:

"Soldier, you will die sooner or later because of your recklessness. We have survived for so many years. I don't want you to die because of some small mistakes..."

In the dormitory building next door.

Le Ziqing looked at the heavy rain and hail, and Ya was stunned.

"This rain is too heavy, and there is hail. It's really too exaggerated!"

Sergeant Luo raised his eyebrows and touched his ears.

"We just made a bet. You have to massage my shoulders and feet. Come on, give me a massage."

Le Ziqing looked disdainful, "Tsk! I didn't promise you just now."

"You want to default?" Sergeant Luo looked at Le Ziqing.

Le Ziqing stretched, "I didn't promise you just now! Don't be so self-indulgent."

He stretched and walked towards the accommodation room.

He said:

"It's raining and hail, so I don't have to go to work. Call me when the rain stops. I'll take a nap. He also said that it's easy to get sleepy when it rains."

In the distance.

Some people chose to stay in the car.

They listened to the crackling sound on the roof of the car and regretted why they didn't go to the accommodation building.

"Brother Jie, this big camphor tree base can also create natural disasters? It's really amazing." A green-haired man in the main driving seat asked.

Snap!

The man in the co-pilot slapped the green-haired man on the head.

"Stupid, this is artificial rainfall!"

"Artificial rainfall, such heavy hail?"

Xia Jie opened the car window a little, and the temperature outside was obviously lowered due to the rain.

The cold air outside the car window blew in, with a fresh smell.

"Green Hair." Xia Jie suddenly spoke.

"Huh? What's wrong with Brother Jie?"

Xia Jie looked at the hail outside and said faintly:

"The big camphor tree base is unfathomable. Let's not go anywhere else. It's good to stay here. Let's settle here in the future."

Green Hair touched the green hair on his head, "Okay, where Brother Jie stays, I will stay there."

Over the years, they have joined many forces, but the big camphor tree force is the most powerful and stable one they have encountered.

Almost all the bases and forces they have been to have been destroyed.

The two seemed to have bad luck, and they brought bad luck wherever they went.

Not long after joining a force base, the base of that force was destroyed for various reasons.

The key point is that the base they joined was destroyed, but the two of them were still fine. It must be said that they were really lucky.

Three months ago, they fled from the south and joined the Dazhangshu Base.

Because they can drive excavators and build iron frames at high altitudes, they can get a lot of contribution points here. In addition to maintaining their lives, they can save a lot of points.

The three months at the Dazhangshu Base were the most stable three months since the end of the world.

The hail rain fell for more than an hour and finally stopped at two o'clock in the afternoon.

In more than an hour, the rain fell 400 mm, a super heavy rain.

Generally speaking, rainfall is defined as the depth of water falling to the ground within a certain period of time, usually measured in millimeters.

Example:

The meaning of 100 mm rainfall,

It means that when it rains 100 mm in one hour, it means that within this hour,

If there is a horizontal plane without penetration or evaporation, the depth of the accumulated water layer on the plane will reach 100 mm, which is 10 cm.

For 400 mm of precipitation, it is 40 cm.

In just one hour, 400 millimeters of rain fell, which was truly terrifying.

The underground flood discharge pipes in the buffer city are now operating at full capacity, continuously transporting rainwater to the cliff lakes in the buffer city.

It had not rained for more than four months, and the lake in the buffer city was less than half full. Now it rained for an hour, and the water level suddenly increased.

Master Luo came down from upstairs and stepped on the ground where there was still a few centimeters of water deep.

While walking to collect water, he was going to check the electric truck. He would have to go out to transport coal later.

It rained 40 centimeters deep in an hour, but it only stopped raining for two minutes.

There was only a few centimeters of rain left on the ground.

It must be said that the Dazhangshu base has extremely strong flood drainage capabilities.

Xu Zhen, a professional underground drainage engineer, transformed the drainage above and below the Dazhangshu Base to an extremely exaggerated level.

In the apocalypse, heavy rains and natural disasters occur frequently, and the base does not have a good underground drainage system, which can easily lead to waterlogging disasters.

After many renovations, once there is heavy rain, all running water will automatically flow to the artificial lakes and reservoirs in the base.

Once the artificial lakes and reservoirs are full, they will automatically open flood discharge channels to discharge excess rainwater to avoid internal waterlogging.

The rain stopped.

Li Yu and others also walked out of the duty room.

The clouds in the sky ahead were much thinner, and golden sunlight shone on the ground.

only

The accumulated clouds on both sides rolled away at a speed visible to the naked eye towards the location in the middle where the rain bombs had been bombed.

Due to thermal expansion and contraction, they were able to use rain bombs to digest the water vapor in this cloud layer, but they could not prevent the cloud layers in other locations from squeezing over.

Artificial rainfall can only remove clouds in an area, and it is a temporary solution. It doesn't solve the fundamental problem.

There are thick clouds all over the world, and the clouds are condensed with rich water vapor.

From this point of view, artificial rainfall can only be used as a way to replenish water, but it cannot solve the problem of cloud squeezing.

But.

Li Yu and the others were a little frightened.

In just over an hour, 400 millimeters of rain fell in this area.

Really scary!

Looking at the accumulated clouds in the sky, the clouds on both sides in front slowly filled the gap in the middle.

Li Yu was a little worried. If all the water vapor in the clouds in the sky condensed and rained, how terrifying would the falling rain be? How terrible a flood would be caused by so much rain?

hiss!

Li Yu took a breath as he thought about it.

grass.

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