Wu Wei is a very good person, and immediately patted his chest, with a confident face, "Don't worry, classmates, I'm covering you!" ”

Wu Wei's father is a builder, and he is a strong man in the local area, but he is a good person, and he has long realized that Liu Xin will be a great figure in the future, so he asked Wu Wei to help Liu Xin unconditionally.

Wu Wei's physical fitness is close to the level of a junior physical teacher, and people like him will generally be recruited by major forces after graduating from high school, so the average teacher in the school really can't control him.

Wu Wei has always listened to Liu Xin's words, but after a while, there was really a monster coming, and he couldn't say anything else.

Liu Bi and Liu Cha on the side also echoed: "With Angkor here, don't be afraid!" ”

Tang Yun didn't like to be noticed, he just nodded, agreeing with Liu Xin's statement, and the most important thing was to stabilize the mood of other students at the moment.

The crowd climbed uphill and started from the road and walked back.

The students were all walking vigilantly, and Tang Yun saw that there was no danger for the time being, so he chatted with Liu Xin.

"Teacher Liu, if the little mushroom that grew in my wound before hadn't been cleared, it would grow into a monster's red bump in the future, right?"

Liu Xin replied succinctly, "Yes." ”

"Listen to Wu Wei, you don't let the little mushrooms be pulled, otherwise the flesh and blood will be torn off."

"Well, it's already rooted."

Wu Wei on the side interjected: "I can't understand it, if the mushroom is pulled, then Tang Yun will most likely die of blood loss, so how can the mushroom continue to spread?" ”

Liu Xin: "You say that monster is dead or alive?" ”

Wu Wei was stunned, he was really not sure whether the monster was alive or dead, and he felt that the root zombie was almost the same.

"No...... I don't know ......."

Liu Xin: "It doesn't matter whether you live or die, anyway, your consciousness must be controlled by the red pimple." In the same way, it doesn't matter whether Tang Yun lives or dies, the red bump will stop the bleeding for him and make him act like a monster. ”

Tang Yun frowned: "Teacher Liu, I always feel that something is wrong in this world, but I can't say why, it just feels wrong!" ”

Liu Xin glanced at Tang Yun and put his gaze back to the front.

"Is it just a feeling...... But you feel like it's accurate. ”

Liu Xin took out a small instrument from his bag and said to himself: "The earth's rotation has slowed down. ”

Wu Wei: "What? Wasn't that something that happened a hundred years ago? ”

Liu Xin: "No, it's the speed of deceleration that has accelerated, my device can sense the speed of the earth's rotation, although it can't be connected to the Internet now, but once the latitude and longitude are determined, it can accurately measure the speed." ”

Wu Wei: "Listening to what you said, everyone has never had a network in their hands, and this time the signal was cut off for too long, and it hasn't been so long before!" ”

Tang Yun: "Teacher Liu, when do you say the earth will stop rotating?" ”

Liu Xin: "This is not clear, it is difficult to estimate, it may be hundreds of years, it may be a few years, and the trend of deceleration cannot be determined." ”

Wu Wei: "What? Probably a few years? What are the consequences? ”

Liu Xin: "Okay, let's continue to teach you a lesson!" ”

Liu Xin clapped his hands, attracting the attention of his classmates.

"Students, here is to popularize some knowledge for everyone, listen to what you want to hear, and do your own thing if you don't want to listen."

Liu Xin looked back at Tang Yun and Wu Wei, "You two have the best perception ability here, you must be on guard!" ”

Liu Xin continued to talk to the students, "You won't use this knowledge in the exam, so you should study extracurricular knowledge." ”

"These are all theories, and they may not all be correct, I will select a part of my published papers to explain to you in layman's terms, which will not involve specific model operations and data ......."

"You already know that because of the rotation of the earth, there will be a day and night alternation, time differences, and geostrophic deflection forces, which will promote the flow of water and heat around the world......"

"If the rotation slows down, what do you think the sea will change?"

The students began to talk about it.

"How can this change?"

"yes, is it freezing or volatilizing?"

"Is there any connection between that?"

Liu Xin reminded: "You should open your mind, the earth is an irregular sphere with a slight drum in the middle and slightly flattened poles, and then consider the geostrophic deflection force. ”

Although Tang Yun had excellent grades, he was a science student, and these problems were obviously out of line, so he had to listen to Liu Xin's explanation silently while being vigilant.

At this time, a girl raised her hand with some hesitation, this is the class leader Xiang Yu, who looks ordinary, but has a very gentle personality, and is a standard school bully.

Liu Xin nodded: "No need to raise your hand, what do you say!" ”

Xiang Yu replied: "The sea water flows to the extreme south and the extreme north......"

The northern and southern ends of this world are known as the Extreme South and the Extreme North, both of which are snow-covered continents.

Liu Xin: "Yes, once the rotation force is weakened, the sea water will flow towards the poles. Let me ask you again, how does the air flow? ”

This time, Xiang Yu was obviously a little more confident, and replied in a raised voice: "The air will move towards the poles like the sea!" ”

Tang Yun was taken aback when he heard this, although Liu Xin didn't ask about the consequences, but after a little thought, he understood that as soon as the air was thin, not only human beings, but most living beings would be doomed!

Liu Xin didn't put the topic in a heavy direction, and asked again.

"The earth is divided into three layers, a molten core, a solid insulating mantle, and a hard crust, all of which rotate together. But what happens when the rotation slows down? ”

Xiang Yu: "Earthquake?" ”

Liu Xin: "Yes, each layer descends at a different speed, and finally the strong friction force is suddenly released, tearing ...... from the inside out"

Ryu Shin wanted to go on to say, "Earthquakes can occur in areas that have never had earthquakes before," but he didn't mention it even after thinking about it.

"You don't know about the magnetic field, I'll talk about it directly. The geomagnetic sphere formed by the magnetic field protects the Earth, and this electric field is maintained by the Earth's rotation. However, as the Earth's rotation slows down and the magnetic field weakens, radiation from outer space reaches the Earth. ”

Xiang Yu's expression was a little unnatural, "That'...... Would that kill humanity outright? ”

"That's not ......" Liu Xin seemed to realize that he had said too much, and waved his hand, "The geomagnetic reversal has happened many times before, and it will also be accompanied by the weakening of the magnetic field, as long as it is not greatly weakened, the living thing is not so fragile." Okay, I see you're all in good spirits, so move on. ”

Liu Xin was a little annoyed in his heart, and nodded at Xiang Yu's words, it is true that the creature will not be easily extinct, but will evolve more crazily on the basis of the previous one.

Moreover, the deceleration of the earth's rotation has brought about a series of effects, and I didn't explain it to the students in detail, and the current situation is even more serious.

At this time, Wu Wei came to Liu Xin's side and asked with a pair of big eyes eager for knowledge.

"Mr. Liu, what will happen if the earth suddenly stops rotating? How do we cope? ”

Tang Yun secretly laughed beside him, what kind of fun is a scumbag making fun, and does this question make sense? How do you deal with such a sudden stop?

Liu Xin sighed and looked at Wu Wei with love and sympathy.

"The equator turns more than 400 meters in 1 second, and if it suddenly stops, except for low latitudes, all animals and plants on the surface of the earth will be directly destroyed! As for the creatures that don't die, just take your time for a day......

Wu Wei muttered: "Is 400 meters in 1 second faster than my treasure donkey off-road vehicle?" ”

Liu Xin shook his head and ignored it, and continued to walk forward, Wu Wei asked simple questions that middle school students could figure out by themselves.

Liu Cha came over, "Brother Ang, how can you have your treasure donkey cart fast!" ”

Liu Bi also smiled and said: "That's it, Angkor is a physical teacher, and he runs faster!" ”

Wu Wei nodded with satisfaction: "Although you two are not very smart, you like to tell the truth, when you graduate, I will take you to eat and drink spicy!" ”

Liu Bi: "Angkor high! The results are naturally better than ours! ”

Liu Cha: "Angkor is hard!" Brains are naturally smarter than us! ”

The two looked at each other and smiled, and said in unison: "Angkor is tall and hard!" ”

Tang Yun on the side had goosebumps when he heard this, and he couldn't help but avoid these classmates who were in the bottom three......