I'm reborn and I'm an international student again?

City.

"Now you have changed your strategy and want to cooperate with the foreigners. It seems that you have truly integrated into foreign life." After Mark left, Alin sighed.

"There's nothing we can do about it. Eating on someone else's land without bringing others along will only lead to one outcome: the other party will overturn the table." Chen Xi lit a cigarette.

"Hahaha, that's true. Those damn ghost guys just overturned the table and didn't want us to eat."

"Let me tell you a true story. More than a decade ago, the world's richest man, Bill Gates, went to a press conference. When he walked to the door of the venue, he was shot in the head by a man holding a cream cake. Before he could react, two more people hit him with cream cakes. If this had been replaced with weapons, Bill Gates would have gone to see God long ago.

The reason was that Microsoft had a monopoly in the global technology market at the time. Think about it, almost all computers in the world use Windows systems. Although there are other systems such as macOS on the market, they are not mainstream.

Think about it, even Bill Gates, the world's richest man, was caught because of monopolistic behavior, so what are we facing now? "

"Haha, we don't have a monopoly yet!" Alin was a little amused.

"I'm just giving an example. According to our original development ideas, we will definitely take this step." Chen Xi explained earnestly.

"That makes sense. By the way, what's in your bag?" Alin pointed curiously at a large backpack that Chen Xi brought.

"Secret weapon!" Chen Xi raised the corner of his mouth and smiled evilly.

This is indeed a secret weapon, why didn't I put it in the car but brought it to Ah Lin? That's because cars in Australia are often visited by thieves. If you put valuables in the car and look back, there is a chance that they will disappear, not to mention this killer weapon!

Go back to two days ago.

Inside the warehouse at Balwyn Villa.

There was a workbench in the middle of the warehouse, and Chen Xi was sitting on a chair fiddling with a bunch of strange parts.

Some of the things here are things he brought from his own factory, which are made by 3D printers.

There are many types of energy in the world, and hydrogen is one of them.

Anyone who has taken chemistry classes knows that water is made up of hydrogen and oxygen, and that electrolysis of water produces hydrogen energy.

When water is connected to electricity, the current decomposes the water molecules and generates oxygen at the anode and hydrogen at the cathode.

Chen Xi peeled off the outer shells of dozens of used carbon-zinc batteries. Unlike alkaline batteries, carbon-zinc batteries have a graphite rod in the center of the battery, and it is very easy to disassemble.

As an electrochemical material, graphite rods will not be corroded or consumed by electrolytes. They also have high electrical conductivity and current stability. Graphite can also increase the contact area with water and improve the reaction rate, making them very suitable for electrolysis.

Then take out the two fixed insulating rings with holes made by the 3D printer and fix the graphite rod on the insulating rings.

The two insulating rings are placed one above and one below, connected by a graphite rod in the middle, perfectly forming the cathode and anode.

The cross arrangement of graphite rods also helps to improve the uniformity of the current waveform, reduce the interference of bubbles on the reaction, and optimize the mass transfer efficiency of other mobile phones and flows...

Specific steps omitted...

In order to allow more water molecules to participate in the reaction at the same time, Chen Xi made another identical device, welding it together with copper wires in parallel to accelerate the generation of hydrogen...

Then put it on with a special acrylic tube... because the acrylic tube is resistant to low-concentration acidic liquids.

Specific steps omitted...

Chen Xi took the bolt on the table and tightened it to prevent leakage... Then he placed it horizontally on the table, added an acrylic empty chamber on top, and inserted an acrylic tube...

In this way, the acrylic chamber below is the reaction chamber, and the one above is the combustion chamber...

The reaction chamber is connected to a hose for hydrogen exhaust and a one-way valve is installed. Water is injected into it to prevent the combustion chamber from backfiring and entering the reactor, and to prevent gas backflow...

Continue to inject 80% water into the reactor to prevent the pressure from being too high, while allowing hydrogen and oxygen to escape freely, but electrolytes are still needed to improve the reaction efficiency...

Chen Xi then took the sulfuric acid with a concentration of 0.1% from the bottle next to him and put it into the reaction chamber... This ratio can enhance the conductivity without causing any side effects...

After plugging in XX volts of DC, the water started to bubble like crazy, indicating that the electrolysis reaction was quite good...

Hydrogen is colorless and odorless when it burns at room temperature and pressure, which is quite environmentally friendly. However, the heat released during combustion is higher than that of natural gas and gasoline, so Chen Xi is always very cautious when operating.

He took out an electronic igniter made from a high-voltage module and placed it in the combustion chamber to connect...

"Okay, it's done, let's try its power!" Chen Xi stuffed a XX into..., aimed at a large target placed on the wall of the warehouse, and pressed the ignition.

There was a crisp "pop" sound, and the target hanging on the wall shook violently.

Chen Xi walked over, picked up the target and took a look. There was actually an object on such a thick target... The power was unimaginable.

"No, this thing will leave traces..." Chen Xi shook his head and picked up the fallen things on the ground.

Then he took out a glass bead that he played with as a child and put it in.

"Snapped!"

"Crack!"

"Fuck!"

At the moment of firing, the door of the warehouse was opened. This time the target was still penetrated, but the glass beads shattered after hitting the wall.

Chen Xi looked at the ground with great satisfaction, but Xiao Ming was scared half to death. He fell to the ground and kept pointing in the air.

"What the hell are you doing! In Australia...but..."

"Why are you here? This is just an ordinary device. Do you think it looks like XX? I said it is obviously a cleaning tool for cleaning carpets." Chen Xi laughed and patted the weapon he had just made.

"I was drying clothes in the yard just now, and I heard a noise from the warehouse, so I walked over. Damn, what are you doing!" Xiao Ming stood up from the ground.

That’s right, the equipment that Chen Xi just made looked exactly like the steam cleaner used by cleaning companies to clean carpets and sofas.

"Haha, I just made something to play with out of boredom."

Xiao Ming walked to the equipment, took a look and said, "You haven't fallen behind in physics and chemistry. In high school, the two of us always ranked first and second in these subjects. Now I have almost forgotten everything. How come you can still make this thing..." Xiao Ming was surprised. He had good theories, but it was impossible for him to make a weapon in practice.

"This was taught by Little Baldy. He mentioned the air cannon in class, and I secretly wrote down the principle." Chen Xi lit a cigarette and started smoking. Little Baldy was their high school physics teacher, and he was also a famous professor at the University of Melbourne. I don't know how he ended up teaching physics in a high school.

"I remember he also taught how to make a simple rocket launcher! That thing can be made in a few minutes, why not make that thing?"

"That thing can't be aimed. It's better to call it a flying rocket than a rocket launcher."

The simple rocket launcher that Xiao Ming mentioned is actually to put water in a container, then block the air hole and pour in an appropriate amount of butane, then turn the container over, and the container will fly out with a whoosh.

The principle is actually very simple. The density of butane is smaller than that of water. When the container is turned upside down, the butane will move to the bottom of the container. During the movement, it will take away the heat of the water, causing vaporization and expansion, which can generate huge thrust.

Water can also be replaced with Coke, and it will still have a propulsion effect, but the disadvantage of this thing is that the direction cannot be controlled.

The little bald guy once said that you can put explosive substances inside the container, which will be no different from a rocket launcher.

However, he did not introduce how to improve it and control its direction, perhaps because he was afraid that his classmates would make weapons that were too dangerous.

"Why are you doing this?"

"Of course it's for self-defense. Remember what happened with the refugees last time? Okay, let me try out its effective range." Chen Xi lied and picked up the weapon from the table.

The air cannon is about the size of two 2L Coke bottles, but it is very light because only a few things are placed in the reaction chamber and the combustion chamber is empty.

A girl can easily lift it with one hand, let alone Chen Xi. It is lighter than a bottle of drink.

"What are you thinking about? You're smiling so lewdly." A Lin's sudden words interrupted Chen Xi's memories.

"It's okay, you go ahead and do your thing, I still have things to do." Chen Xi stood up, picked up his backpack and turned to leave.

At ten o'clock in the evening, in front of a nightclub in the city center, Chen Xi sat in the car and listened to music leisurely.

“She got a halo around her finger
Around you
You know that I love you boy
Hot like Mexico, rejoice
At this point I gotta choose
Nothing to loose
......"

A song was playing on the car's speakers, but the sound quality was a bit disappointing.

Today Chen Xi changed to a second-hand car in order to avoid being noticed by acquaintances.

Another half an hour passed, and he looked at the time and couldn't help muttering to himself, "Why hasn't he come out in so long? This guy won't stay here overnight, will he?"

Just as he finished speaking, Chen Xi saw a man hugging a beautiful woman walking out of the nightclub.

He raised the corner of his mouth and started the car immediately.

"Handsome guy, where is your home?" the beautiful woman who was clinging to the man asked softly.

"I forgot to bring my keys. Let's go to your house." The man thought for a moment, then reached out and pinched the woman's butt.

Forgetting to bring the key was just an excuse. He didn't want the other party to see the things in the house.

"You have an interesting accent, are you from the Wan District?"

"Hahaha, you even heard it. I've been abroad for several years. Is it that obvious?" The man laughed and put his hand into the beautiful woman's clothes again.

"We're on the street, don't mess around. I'll let you touch me as much as you want when we get back." The beautiful woman felt hot all over after being touched. She forcibly pulled the man's hand out of her clothes, pulled the man and walked towards the parking lot.

Across the street, Chen Xi sat in the car looking at Jack in the distance, sneering in his heart.

Last time, I was messed with by this bastard in the bend area. If Ma Zhongyuan hadn't arrived in time with his men, I would have been beaten up by Jack, and Zhao Lingshan would probably have been bullied by that gang of thugs.

Chen Xi is a man who will never let go of a grudge. How could he tolerate someone bullying his woman? Naturally, he would make the other party pay the price.

The car followed the two men to the parking lot, and soon he saw a modified black Evolution 9 slowly driving out of the garage.

After pressing the play button of the music, a passionate song immediately filled Chen Xi's car.

“Got the chrome
Hit the zone
Hit you all my time
And it fits the road
Had known
Speed ​​to the top
no drops
What cha gonna do
won't stop
I can't take any more
......"

"Buzz!"

Jack's Evolution 9 roared and headed east.

Chen Xi held the direction indicator tightly and followed closely.

"Don't drive so fast, you are driving under the influence. Drive slower, I don't want to die early." In Jack's car, the beautiful woman shouted nervously while grabbing the handle.

"It's so noisy. I hope you'll scream as loudly when we get in bed." Jack picked his ears and turned on the music.

The loud music filled the entire street. This kind of midnight racing happens every night and the residents of Australia are used to it.

Soon, the beauty began to adapt to the speed. She still felt that it was not enough and urged Jack to drive faster. Young people naturally like to seek excitement. Chen Xi also liked racing before.

About half an hour later, the car stopped in front of a remote residential area.

The residential streets in Australia are different from those in China. Basically, there is a street light every several dozen meters. The dark streets look a bit scary.

Chen Xi turned off the car lights when they were about the same distance away and slowly followed the other car.

When the Evolution slowed down, he looked at the backpack on the passenger seat and unzipped it.

"Click." The car stopped in front of a house that looked a bit old, and the door was quickly opened. Jack got out of the car anxiously, wanting to have a night rally with the beautiful woman next to him.

The houses in this area are not very good and should be where poor people live. Chen Xi silently lowered the car window and stuffed the glass beads into the chamber.

"I forgot to bring that thing. Do you have it at home? Otherwise I'll go buy some." Even now, Jack still has the awareness of family planning.

"We have everything at home, but I'm just worried that you won't be able to bear it soon." The beautiful woman covered her mouth and smiled jokingly.

"How could I not be able to do this? I used real guns when I was in the army. I'll show you the power of the T65K2 rifle in a moment. It can be fully automatic, with three-round bursts and single shots..." Jack lit a cigarette and proudly began to show off the gun he had used when he was in the military.

Men, when faced with women's doubts about some aspect of themselves, will definitely brag about themselves.

However, just as he was happily trying to see how the beauty would react, a tube in a car in the distance was silently pointed at him. (End of this chapter)