Yu Fan asked Chen Wanli very panickedly: "Wait?" You just said I was in the cotton warehouse? Didn't you say that we are a fabric warehouse? ”

Chen Wanli: "No one said it was a cloth warehouse, it was originally a cotton warehouse." ”

Yu Fan's brain was running rapidly, concentrated sulfuric acid, concentrated nitric acid, cotton!

This is...... Cotton recipe!

In 1845, in Basel, a city in northwestern Switzerland, chemist Szernberg was conducting experiments at home when he accidentally touched concentrated sulfuric acid and concentrated nitric acid on the table, and he hurriedly picked up his wife's cloth apron to wipe the mixed acid on the table. After the incident, he hung the apron by the stove and dried it, but it burned with a thud and burned to the fullness of the apron in an instant, much to Sainberg's great surprise. Sainberg returned to the lab with this question and kept repeating this "accident" that had occurred as a result of a mistake. After much experimentation, Sainberg finally found the cause. It turns out that the main component of the cloth apron is cellulose, which is in contact with a mixture of concentrated sulfuric acid and concentrated nitric acid to form cellulose nitrate, of which the nitrogen content of more than 13% is called "fire cotton", and the nitrogen content of about 10% is called "low nitrate cotton". This serendipitous discovery led to the creation of nitrocellulose, which is widely used.

The explosive power of cotton wool is 2~3 times greater than that of black powder, and it is mainly used as industrial explosives and gunpowder, such as explosive glue, projectile (Kodak, Barriste gunpowder, etc.), and propellant.

Yu Fan had an extremely ominous premonition, and now he couldn't care so much, Yu Fan stood up and ran towards the gate of the warehouse.

That's when the unexpected happened!

There was a loud bang, followed by a loud "bang"! The door to the warehouse is closed!

Bang, the lights are on, the lights of the entire warehouse are on, Yu Fan has just adapted to the darkness, and now he is a little irritated by this strong light. The plot of this scene seems familiar.

I saw a man dressed in black at the door of the warehouse with his back to Yu Fan, and he was chaining the door. The warehouse illuminated by the light suddenly opened up its vision. It can be clearly seen that there is a pile of cotton here, and in addition to the shelves, the ground is also full of piles.

The man in black turned around and swallowed the key to the warehouse in front of Yu Fan. Then he showed a hideous smile, this person was the arsonist Lao Li. And the cotton full of warehouses has been treated with concentrated sulfuric acid and concentrated nitric acid - fire cotton.

Or rather, it's a warehouse full of explosives.

Lao Li didn't say a word, took out a lighter from his pocket and lit it.

Yu Fan shouted in horror: "Wait! No! ”

But Lao Li has already said that the lighter is thrown high into the air, and the flames of death fly in the air.

Yu Fan turned around, turned his head and ran.

Yes! Great, there is a small door inside this warehouse, and Yu Fan smelled a trace of life.

Yu Fan desperately ran towards the small door. People tend to secrete a lot of adrenaline in the extreme situation, improving the potential of human beings, Yu Fan only took a second to rush into the door, and before Fan closed the door, there was a violent noise in the warehouse!

Lao Li's lighter ignited the cotton wool in the entire warehouse, causing a huge explosion, and Yu Fan was directly knocked away by the bomb's shock wave.

Yu Fan stood up with difficulty, and he looked at his surroundings. It turned out to be ......

The circular staircase from the previous dream. Yu Fan touched the headset, fortunately, the headset was still there, and he asked Chen Wanli in the headset: "Where am I now?" ”

Chen Wanli said with a little doubt: "Well, I don't know where you are, your location has disappeared, it's so strange, if Teacher Ma Qianli is not blind, he should be able to help me find you." ”

Yu Fan was stunned for a second, feeling that there was something wrong.

Wrong! At this time, Chen Wanli didn't know that Ma Qianli's eyes were blind. Well? Wait, why do I know what's going to come in the future? How do I know I'm in the past now? And then there's this familiar hollow-shaped staircase.

Isn't all this real? Yu Fan came to a conclusion - he was now in a dream.

Everyone dreams, but not many people realize that they are dreaming in their dreams, and these people either have a high level of insight or are beginning to awaken their potential.

In fact, isn't our real world a dream? It's just that we are all dreamers, this dream is tired and long, and in which world is the sleeping real self napping? Maybe when we wake up one day in the future, we won't remember the previous dream clearly.

If there is really a theory of reincarnation, the reincarnation of that person from life to life may be just a dream one after another.

Although Yu Fan knew that everything he encountered in his dream was fake, the feelings he felt at this moment were real, he could feel fear, feel anxiety, and even feel the pain caused by the explosion.

"Hmph, haha." The sinister laughter sounded again, this was the laughter of the arsonist Lao Li, and I saw Lao Li's whole body flames coming out of the small door, revealing his hideous face and approaching Yu Fan step by step.

Yu Fan subconsciously fled, he grabbed the stairs and rushed downstairs.

At this moment, a touch of white floated in front of me, and a person stood in the way of the staircase, and the white ghost appeared again!

In the previous dream, Yu Fan felt that this white ghost felt so familiar to him, but the last time he didn't see it clearly, he woke up.

This time, Yu Fan decided to widen his eyes to see who this white ghost in his dream was, anyway, he was dreaming, and there was nothing to be afraid of.

Yu Fan rushed towards the white ghost, but this ghost was very flexible and shook Yu Fan, but Yu Fan still grabbed his hat and removed it, Yu Fan saw the back of an old man, Yu Fan wanted to go up to see, but this white ghost suddenly slapped!

Yu Fan was directly ejected, Yu Fan was very unwilling, he was falling at extreme speed, he felt that he was weightless, and the falling speed was getting faster and faster, Yu Fan began to panic, he struggled to grab something, but nothing.

"Fanfan, don't be afraid of falling, when you hit the bottom, that's when you rebound" A warm and familiar voice sounded, Yu Fan's heart calmed down, he felt that he was getting lighter and lighter, and fell asleep surrounded by love.

When Yu Fan opened his eyes again, it was already 8 o'clock in the morning on Saturday, and Yu Fan had a nightmare last night, oh, not exactly a nightmare, it was a very strange dream. In the depths of Yu Fan's memory, there was something calling to him, but he couldn't remember it.

Yu Fan got up and got out of bed, looked in the mirror, and saw a tear stain on his cheek.

Yu Fan touched his tears and wondered, "I, why are I crying?" ”