Perhaps the last question aroused the enthusiasm of the students, and the classroom was noisy, much more lively than in the past.

Another student raised his hand and asked, "Teacher, teacher, can you tell us about nuclear weapons. The book says that we humans have made the most powerful weapon. How powerful is that?"

Master Yu waved his hand to stop other students from asking questions, and said with a smile: "Okay, everyone knows that the most powerful weapon that mankind has made is nuclear weapons, that is, atomic bombs. How powerful is the atomic bomb, in simple terms. , The generated vibration waves can shake the earth’s crust. The temperature at the center of a nuclear explosion can reach hundreds of millions of degrees Celsius. There is almost no real matter to withstand. Everything in the center of the explosion will be vaporized. Note that vaporization does not disappear."

"Is there any difference?"

Yu Fuzi explained: "According to the law of conservation of energy, the total amount of matter in the universe is constant. Gasification means that matter transforms into other forms, such as light and heat, but it will not disappear."

Qian Yuan followed and said, "With such a great power and such a high temperature, the fierce beast should not be able to hold it!"

Master Yu was silent, and shook his head: "Some things can't be measured by material concepts when they reach a certain height."

...

The bell rang for a long time before the classmates below reacted and hurriedly ran towards the school cafeteria.

Qian Yuan also picked up his own tableware and muttered: "This old man is getting older and more shameless, and the stories he tells are getting more and more mysterious."

Then flattered to Zhang Xiaofang at the table next door: "Fat brother, are you still the same?"

Zhang Xiaofang nodded, turned his head and looked at Master Yu's croaking back in the corridor, thoughtfully.

Soon after, Qian Yuan hugged five or six rice crackers and a large plate of dishes. He ran back out of breath, put it on his table, and said, "Fat brother, eat first, I have something to do." After that, he disappeared. NS.

Zhang Xiao had a big appetite, and in a short while, he swept away the food. After eating, he took out a book of electromagnetic theory and began to read it.

The Cataclysm has erased all the records and knowledge about electromagnetism, and even the word "electricity" is gone, and now this basic force for constructing matter has once again appeared in the world.

The theory of electromagnetics is a book that comprehensively introduces electromagnetic effects. The specific author is unknown. It is the emergence of electricity that has gradually alleviated the complex dangers faced by mankind in the past two years.

Electromagnetic force is different from the energy under chemical action such as fuel and gunpowder. It has higher energy efficiency and more comprehensive action, covering almost everything.

Therefore, the engineering school has a new subject, electric power engineering. Zhang Xiaofang is very interested in electric power. After a month, there will be an electrician qualification examination. If he passes the examination, he can go to work in a thermal power plant.

He has two dreams, and he also faces two choices. One is to go with the sword of Lao Zhang, and the other is to have a family of his own and a stable job in Hope City.

The second dream is because of a woman, a woman he has a crush on for a long time. This woman is called Lu Yun. She is a teacher at the school. Although she is a teacher, she is actually not very old. She taught directly after graduation last year. Just two or three years old.

After school in the afternoon, Zhang Xiaofang walked slowly towards the house, thinking about finding someone to help.

The two rats were so big last night, and they are likely to be fierce beasts in the growth and even maturity stages. I am afraid that ordinary physicists can't deal with them. They need physicists, but he does not recognize superior physicists.

Unknowingly, I arrived at that small alley again. Lu Yun lived here. She hadn't gone to class for two days, and there was no news of asking for leave.

Zhang Xiaofang was a little worried. After reaching the door of her house, he looked around and didn't knock on the door this time. Instead, he climbed directly over the wall.

As soon as I got into a room, I heard a low sound of footsteps from the living room outside, followed by a mop mopping the floor, and at the same time an inexplicable coolness spread. Could it be that Lu Yun has already returned? But no door opening sound was heard.

Zhang Xiaofang gently pushed the door through a gap and peeked at the outer room. In the dark room, there seemed to be a figure with a body on the floor mopping the floor, just like the old woman I saw last night.

In the impression that Lu Yun had no such relatives, Zhang Xiaofang hesitated and pushed open the door boldly. Just as he was about to question, the old woman disappeared.

He scratched his head, and there were still water marks on the ground, which proved that it was not an illusion, hell!

Just when he was a little frightened, the water mark on the floor suddenly formed a layer of frost, and it spread quickly. In an instant, a biting chill surrounded him, his whole body was frozen, and he tried hard to move it. If he can't do it, his body doesn't seem to belong to him anymore, he can't control it at all, and even the sense of touch, sight, and hearing are lost.

At the critical moment, Zhang Xiaofang's mind flashed, and he used all his strength to bite the tip of his tongue. A stream of heat gushed out from his mouth, and a faint scream was heard in his ear. The stiffness disappeared, and the control of the body was restored. In the hands.

His eyes were restored to vision, and the first thing he saw was an old face full of wrinkles floating in front of him, looking at him with a strange expression that was not a smile.

"What the hell!"

Zhang Xiao put up goose bumps and punched out instinctively.

This punch was completely empty, and the old face in front of him seemed to be a plume of smoke, and the fist passed directly through without any touch.

"Chat..." The old face grinned and let out a wicked treacherous laugh, then slowly disappeared.

Zhang Xiaofang finally found Lu Yun. She was lying in the room next to the hall, as if she was sleeping soundly, with a sweet smile on her face, but her cheeks were sunken, and the whole person was only skin and bones, like a corpse.

Zhang Xiaofang rushed over and patted her on the cheek, and called out anxiously, "Ms. Lu, wake up."

No matter how he screamed, even the people who pinched Lu Yun didn't respond. If it weren't for her breathless breathing, Zhang Xiaofang would suspect that she was dead.

Being in a hurry, a strong sense of danger rose again, and his body and mind instantly concentrated, and a sharp piercing sound came from behind his head. He only had time to tilt his lower body slightly, his shoulder pained sharply, and a sharp fruit knife was already Insert it on the shoulder.

In the dark part of the room, the old woman arched like a shrimp slowly emerged.

Zhang Xiaofang suppressed the fear in his heart and asked, "What the **** are you?"

The old woman Yin Kesi responded: "I'm so hungry, little guy, let me eat you." The voice fell, and it turned into a cloudy wind.

Fearing that this thing would hurt Lu Yun, Zhang Xiaofang didn't dare to run away, so he could only greet him with his fists. Similar to the situation last time, this punch seemed to be hit in a cloud of cold air, passing through the old woman's body. pass.

However, the old woman didn't seem to be able to hurt him either, and the figure passed through his body directly, as if she had been poured through ice water, and she was so cold.

When the old woman realized that she couldn't hurt him, she let out a hoarse grunt, and began to manipulate various objects, flying towards Zhang Xiao like raindrops.

The room was very small, and Zhang Xiaofang could not evade him because he was afraid of hurting Lu Yun. The items manipulated by the old woman were so powerful that they were no less powerful than the attacks of the practitioners of physical skills.

After a while, Zhang Xiaofang's nose was bruised and face swollen, and his body was also bloody. Fortunately, there was nothing metal in the room except for his own fruit knife, so he could hold it for the time being.

After a while, the entire room, including some tables, chairs, and benches, had been dismantled by the old woman, but Zhang Xiaofang was found to be unstoppable. The old woman screamed angrily, took a sharp wooden stick, and rushed at him again.

Zhang Xiaofang secretly said that he was finished, he could not hurt this thing at all, but this thing could use the real thing to hurt him, and the power of directly holding the real thing is definitely higher than manipulating the real thing.

Seeing that the old woman rushed forward again, she could only meet again with her fist.

This punch hit the old woman's head directly. Unexpectedly, the touch of this punch was different from the previous one, as if it hit a soft entity, and its power was beyond imagination.

"Ah..." Accompanied by a screaming scream, the old woman could no longer maintain her shape, and with a "bang", it shattered like a balloon and turned into a thick black fog.

The scarlet blood above the black mist is unusually noticeable, slowly corroding the black mist like sulfuric acid.

Zhang Xiaofang looked at his fist suspiciously. It turned out that he was injured just now, and the blood stained his entire palm red.

"Smelly boy, I want your life!" A resentful scream came from the black fog, and a large cloud of black fog charged straight.

Zhang Xiaofang was not afraid of anti-happy, and finally found a way to harm this ghost.

This time, every punch was like hitting a balloon, and at the same time "chichichichi" kept ringing. The black mist that the old woman turned into became smaller and smaller, and the voice became weaker and weaker. After a while, there would be no more The sound came, and the black fog disappeared.

Zhang Xiaofang looked at his blood-filled hands, so such a terrifying old ghost died like this?

After staying in the same place for a while, he rushed out with Lu Yun in his arms after regaining his senses.

...

Along with a cloud of black mist, Master Yu walked in slowly and frowned as he watched the water marks on the ground.

The lives of the Hungry Ghost Dao have spread to all corners of the world over the years. Although it is terrifying and difficult, but subject to material rules, it is actually difficult to reveal too much harm.

Different worlds have different rules ~lightnovelpub.net~ Although ghosts are not physically harmed, they do not have too strong physical attack ability. Because they are abandoned by the energy of heaven and earth, they also have no ability to control energy, but this hungry ghost obviously has With the ability to manipulate the energy of the water system, he is a water ghost!

Not only the hungry ghosts undergoing silent mutations, but also the demonized beasts that appeared last night, the overall rules of the world seem to be changing!

He closed his eyes, and a faint star-like shadow floated out between his eyebrows.

In an instant the whole city was shrouded in his spirit.

As small as a tree or a stone, as large as humans and other creatures, everything is filtered in the consciousness.

When in a four-dimensional soul state, the three-dimensional world has almost no secrets to him.

He can see what has happened before and what is about to happen in the future through the time axis of four-dimensional space.

It's just that this "seeing" process is like watching the changing trend of the mountains in the mountains, watching the vicissitudes of life in the earth, watching the expansion of time and space in the universe, and the circulation of galaxies. It is simply difficult to sort out the case.