Rebirth King of Pit Climbing

()When the Ritou gradually turned west, Yang Ling saw that it was almost done, and summoned all the people who made fireworks and firecrackers to watch the so-called Thunderbolt Fire show. This thing is the second kicking type that everyone put together during the Chinese New Year.

, limited lethality.

Yang Ling shook her head when she saw it. No wonder the old man threw himself into the craftsman's prison. There was indeed a lot of room for improvement. Yang Ling concentrated all the people involved in the creation of the thunder fire in a small house and was ready to give it to him.

They took a chemistry class that was not systematic. Of course, Yangling still had a half-deal knowledge of chemistry in three years of high school.

Yang Ling did not directly talk about what gunpowder is, "Everything in this world has an energy conservation, and everything in this world is about energy. It's like a shear arrow, and an arrow is placed there, even a small

The child will not be afraid, but once he puts the string, it is a killing weapon. If the arrow is to be shed, someone must pull the string. This is the process of energy release. Some people will be tired after one arrow, while others will be shed.

A few arrows still feel relaxed. First of all, it is a problem of personal energy accumulation, and there are also technical issues. An excellent archer can use the smallest strength and the greatest skills to achieve this effect, just like this thunder fire, and you must make the things in it.

Only by exerting one's own effect can you achieve the greatest power."

After Yang Ling finished speaking, he glanced at the craftsmen who were at a loss and sighed, and finally understood the hardships of the physical education teacher who was old in Chinese class, "In this way, I'll change the way and let's do an experiment.

”

At this time, a trembling hand raised. Yang Ling was overjoyed when he saw this. Such a student who is eager to learn should be trained well. He quickly changed to a kind smile and asked, "Student, do you have any problems?"

"Sir, I...I...I want to go to the thatched cottage!"

Yang Ling had the intention of vomiting blood, so he held back, waved his hand, and continued his teaching process. Yang Ling ordered two pieces of ancient firecrackers to pour out the gunpowder from the thunder fire, igniting three fires.

Pile, some gunpowder was sprinkled on the first fire, the second fire was placed with nothing, and the third fire was placed with firecrackers filled with gunpowder, and then they took everyone away from them.

The result is obvious. The first fire has nothing but burning more vigorously, the second fire recalls a slight sound, while the third fire is blown to scatter the flames.

After the experiment, Yang Ling pointed to the experiment site and asked, "Do you have any results from the experiment just now?"

Everyone shook their heads together, Yang Ling took a deep breath, I endured, I was indeed not the teacher's material, Yang Ling said: "The experimental results are obvious, such as the comparison between the first fire and the second fire is that we both

I know what is in the thunder fire. Gunpowder will explode. You also know, but the first fire did not explode. On the contrary, the second fire without gunpowder did not explode, but it produced very similar to the explosion.

The phenomenon, which proves that gunpowder will not explode, and the firecrackers will explode. Let's look at the difference between the second fire and the third fire, which is also a very obvious thing.

All firecrackers were intercepted and exploded, but why was the power different?"

Yang Ling paused and said, "This is back. What I told you at the beginning is energy. The explosion process can be regarded as a process of energy release, and a process of rapid energy release."

At this time, someone finally asked: "Then why can the second firecracker explode? There is nothing inside, just like you said, there is no energy inside."

"Good question, promising!" Yang Ling praised: "Here, I must correct your point of view. There is not nothing inside, there is air inside."

"Air?" Everyone was puzzled by the new noun that Yang Ling repeatedly popped up.

"We can't see or touch the air, but we can't live without air at all times. This air is very similar to water. For example, if I put a basin of water, it's full in summer now

A basin of water, but in winter, the water becomes ice, and you will find that the full basin of water will look less than before. Why? Because it involves thermal expansion and contraction,

Thermal expansion and contraction means that things will start to expand and become larger when they encounter heat, and they will shrink when they encounter cold. Everything will expand and contract with heat, but when we look at it with our eyes, you find that only water can be there.

In this case, it is because of thermal expansion and contraction. There are still requirements for this heat and this cold. The heat and cold required for thermal expansion and contraction are different. Just as the conditions required for water are

The relatively low air is very similar to water, and it will quickly expand and contract. Now, let’s talk about the difference between the second fire and the third fire. The firecrackers in the second fire have only air and nothing else.

At this time, the air inside begins to heat up and slowly expands. Then, the bamboo cannot bear it and will explode, but the power inside is very small. On the third fire, the air inside is not the heat of the fire.

Instead, the gunpowder inside is ignited. Just when your eyes blink, the heat emits more than the heat in your fire. The air inside is swelling in the blink of an eye.

It is very large, so an explosion occurs. The heating of anything is a process of releasing energy. The energy released by the gunpowder cannot be absorbed in all the air in the bamboo, so it is possible to see that after the bamboo explodes, a

This kind of impact is that the energy that is not absorbed inside is eager to find the air."

Yang Ling finally concluded: "Now let's look back and see what conditions are required for explosion? First, energy release, without energy release, there is nothing, secondly, it is in a confined space. Today we can use bamboo poles as this confined space and paper

Can you use a crock pot or a pot, then can we use an iron pot? I tell you it is okay. But I want to tell you that each material is different, and the energy required to explode in this confined space is also different. Of course, the explosion is

The power is also different.”

Yang Ling feels that there is no time to travel through time now than today. No wonder he always says that teachers are a great profession. He not only needs to tell others the truth, but also needs to divide the truth very carefully so that others can accept it. Yang Ling feels that he is all

I was exhausted, took a few sips of cold water, and said, "I just said a lot to you. You may not understand it very much, but it doesn't matter. How much do you remember just now is the amount of what you said. I'm with you now

Let’s talk about the formula of this gunpowder.”

The craftsmen with bitter faces just now sat upright. Yang Ling was so confused that he was just talking. To be honest, no one could understand it. It has been like this until now. It would be better to tell him how to do it if you tell him the principle.

It comes well, which is why foreigners make money away, while the Chinese have paid such a big price but only gained a little benefit.

"The gunpowder recipe I have now is about one sulfur, dinitrogen, and three charcoal, two pounds of saltpeter, three pounds of charcoal, and grind it into very fine powder, and then stir it thoroughly together. But I want to tell you, this

It is not the best and most powerful formula for gunpowder. You have to keep trying the real powerful formula. For example, you can have one or two more sulfur and one or two less saltpeter, and do it a little bit until you get the best one.

”

Yang Ling announced the get out of class to be dismissed, and all the craftsmen were exposed, and they went to test the new formula Yang Ling said, but one person stayed, and he was the only craftsman who asked Yang Ling's question, "Sir, I still have many things I don't understand. Can you ask me to teach me again?”

Yang Ling looked up and said, I'll go, this dark skin, sweat shining under the sun, and what's even more hateful is the eight-pack abs that blinded Yang Ling's eyes. Yang Ling unconsciously touched his lower abdomen.

With a whole piece of abdominal muscles, Yang Ling asked sourly: "What's your name?"

"Little Li Goudan."

"Good name, it matches very well," Yang Ling raised his thumb and said, "It seems that you like what I just said. Can you tell me why?"

"Because I like to play, I like to hear what the teacher said about the explosion." Li Goudan said shyly.

Interest is sometimes the best teacher. Although Yang Ling envies Li Goudan's abdominal muscles, he still answers many questions seriously, but many Yang Ling doesn't know how to do it, Yang Ling has to vaguely pass. Yang Ling is not only about the current Pilihuo

He put forward some improvement suggestions, and also proposed some concepts of firearms in later generations, such as grenades, rockets, and muskets. Li Goudan's eyes shone brightly.

Yang Ling regrets that his weapon advantages exceed the level of technological development that the times can have. It is probably a double-edged sword. But think about it, let’s forget it. Now the Han people are surrounded by various ethnic minorities, not my race.

Their hearts must be different. It is obviously more beneficial than disadvantages to threaten these people and protect domestic production.

In the backyard of the craftsman's prison, the emperor and Old Man Shen were sitting opposite each other. What Yang Ling had just said, including some of the things Yang Ling later proposed to Li Goudan, were also recorded on it.

The emperor rubbed his swollen head, raised his head and said to Old Man Shen: "My dear, look at what Yang Ling said, how credible is it?"

"Your Majesty, I don't know why, but I have some confidence in what this kid said. Your Majesty doesn't need to worry. I believe that it won't take long to test what this kid said, which is good." Old Man Shen

After a pause, he said, "However, this kid always likes to think about things from the perspectives that others don't pay attention to, just like the economic aggression plan that the old minister had proposed to His Majesty before, and what limited killing and damage he said later today, saying that he would not kill.

The mortal enemy hurts the enemy. These views seem absurd at first, but after careful consideration, they are really useful."

The emperor sighed and said, "I have ordered someone to investigate this kid. It seems that such a monster has appeared overnight. I am a little unsure. I don't know if such a monster is beneficial to my success."

Is it still harmful? I will have to trouble you to help me watch him well in the future."

Old Man Shen smiled slightly and said, "Your Majesty is too worried. In fact, although this kid is a bit absurd and does not follow the common sense, this person has one of the biggest advantages and biggest shortcomings, which is that he values ​​love and righteousness. Your Majesty can ask the Crown Prince as long as possible.

”

"The prince said so, but after all, I'm still a little worried."

"Your Majesty, be content with the prince's kindness. He is even more acquainted with him. I believe that the prince's kindness will definitely attract his heart. Why do you need an old minister?" Old Man Shen said quietly.