It didn't take long for everyone to notice that the western sky had begun to darken, and the light was getting weaker and weaker. As soon as you look at this situation, you know that it is going to rain.

"That's accurate!" Li Quan admired.

"So, sometimes you don't have to be very high-tech to explore the world and perceive the world. By taking a closer look at the things around you, you may be able to plan ahead. Hong Lao said.

After taking a sip of tea, Hong Lao continued: "In ancient times, Zhuge Liang was known as a miracle and a clever man, and he could speak through the heavens. Actually, it's not that there are any superpowers, it's just that he pays more attention to life than others, and he is also very smart and thinks about things comprehensively. ”

"Go get down! There may be thunder in a while. After the second uncle finished speaking, he went to the side of the house and pulled the knife down. In the countryside, electricity is used very carefully. Usually thunder and the like, they don't put the TV on for fear of breaking the TV.

Seeing the rolling dark clouds rushing over, everyone knows that this time God is really moving, not a joke, don't think that people are thundering and raining.

"It's probably going to rain a lot." The second aunt looked at the gradually darkening sky outside and said with some concern in her heart.

"It's okay, the summer rain is short-lived, and it passes quickly. Come fast and go fast. Moreover, thunderstorms are not without benefits, at least the crops are equivalent to fertilization. Chu Jiaqiang said.

When thundershowers come, there are often strong winds and thunderstorms. When the wind comes, the sand and rocks are flying, the roofs are blown down and the walls are blown down, and in the wind and rain, the things in the street dance with the wind, flying everywhere, and even uprooting big trees.

Those who have studied chemistry know that when thunder strikes, it can decompose nitrogen in the air and mix it with rainwater to become fertilizer water, which is conducive to the growth of crops.

At this time, among the black clouds in the distance, there was a muffled sound of thunder.

"Why do you hear thunder without seeing lightning? Odd! Someone said. In his recognition. The speed of light is much faster than sound, and lightning must be seen first, and then thunder must be heard.

"What's so strange about that? These muffled thunderbolts do not produce lightning. Thunder does not necessarily have lightning, but if there is lightning, it will definitely thunder. Chu Jiaqiang said. As soon as I heard that guy, I knew that he didn't observe life much before.

When it rains. Some of the clouds in the sky have positive electricity. Some are overcharged, and when the two clouds collide together, they will be discharged, emitting very bright lightning, and at the same time emitting a lot of heat, so that the surrounding air is quickly heated, expanded, and makes a loud sound, which is thunder.

"Last time. When I went to the north, it was winter, it was snowing, and there was thunder. "A tourist told everyone.

"Thunder in winter, although rare. But it's not a strange thing. After the man finished speaking, Wan Lao spoke.

"Isn't it surprising that it snows and thunders in winter? No? As soon as Wan Lao's words came out, someone immediately exclaimed.

In the textbooks they used to study, there was a poem in the ancient Han poems called "Shang Evil": Shang Evil! I want to know you and live a long life. There are no mountains and no tombs, and the rivers are exhausted. Winter thunder shakes summer rain and snow, heaven and earth are together, dare to be with the king!

Thunder in winter, snow in summer, mountains without tombs, rivers running out, and heaven and earth are listed as natural phenomena that cannot happen.

"You kid didn't pass physics before!" Zhou Furong said with a wicked smile at the tourist.

Chu Jiaqiang explained to them:

The formation of lightning must meet certain conditions, that is, there must be sufficient water vapor in the air. To have the power to raise the warm, moist air, the air must be able to produce a violent upward and downward convective movement. Why is there so much thunder and lightning in spring and summer? This is because the warm and humid air flow is active, the air is humid, and at the same time, the solar radiation is strong, and the air near the ground is constantly heated and rises, forming a strong upward and downward convection, which is prone to lightning phenomena.

"In winter, the air is cold and dry due to the control of the continental cold air mass, coupled with the weak solar radiation, the air is not easy to form violent convection, and lightning rarely occurs. However, when there is a strong warm and humid air to the north, after the cold air is forced to rise, it will also produce strong convection, and thunder and lightning will appear at a certain intensity, and hail can also fall when the warm and humid air flow is particularly strong and the convection is particularly strong. Chu Jiaqiang said.

When the men heard this, their faces turned slightly red. They really don't know about such a thing.

At this time, the wind began to rise in the village, and it slowly increased and strengthened, and the fallen leaves were blown all over the sky, and the trees were blooming. Everyone looked up and found that the dark clouds had covered half of the sky in Chujiazhai.

"Huh! These dark clouds actually stopped, not gone? Chen Wu said in surprise.

Everyone also discovered this situation, now, Chujiazhai is full of sunshine on one side, dark clouds on the other side, and the whole sky is a yin and yang day, which is very peculiar.

All the tourists in the village took out their cameras to record this strange scene. Even Ye Caiping and others couldn't help but take out their cameras to take pictures of this rare weather spectacle.

"What a unique sky! I've seen people who rain and don't. I have never seen this kind of spectacle of black clouds pressing down on the city while the sun rises. Some tourists were amazed.

"Don't say you haven't seen it, I'm my age, and I don't remember such a situation." The old village chief looked at the sky and said.

Soon after, lightning and thunder began to roar on the dark side of the sky, and the wind was fierce. After a while, the bean-sized raindrops suddenly came, and then a torrential downpour was formed. On the other side, the sun is fierce, indescribably weird.

At this time, the small animals in the house are all retracted into the house. They are born with a fear of thunder, and the fear of Tianwei at this time is innate to almost all animals.

Chu Jiaqiang and the others watched this scene with relish at the door of their homes, it was not raining here, and the sun was still shining.

Just then, the giant bear ran back. Seeing its dress, everyone immediately burst out laughing. I saw that the guy was wearing a straw hat on his head, and he didn't know where he came from, carrying two banana leaves on his body, blocking the rain, and running quickly towards the sun.

"This guy is pretty funny, too!" Yang Lao said with a smile.

As soon as he finished speaking, a dazzling bolt of lightning struck down and landed under a tree in the village. I saw that the tree was split in an instant, and although it was not on fire, it was also smoking.

"What did that tree create?" Zhou Furong was secretly speechless.

"Don't go under the tree to hide from the rain in the future, you will be chopped by Lei Gong." The second aunt said to Xiaobao. Adults will always teach children in this way, when thunder, pay attention to something, this is all from elementary school.

When it is thundering and raining, it is strictly forbidden to stay on the top of the mountain or in the high hill area, and even more so do not continue to pedal to a high place to watch the rain, do not take shelter under big trees, near telephone poles, and do not walk or stand in an open field, you should hide in a low-lying place as soon as possible, or find a house or a dry cave to take shelter as much as possible.