Li Mengxi is different from Guan Yu. Guan Yu has far more energy than ordinary people. Even after staying up all night, Guan Yu is still full of energy. Li Mengxi is not the same. Li Mengxi is still a child. He has not slept all night and he is very sleepy.

Li Mengxi estimated again that he would have to sleep until the afternoon when he returned, which would lose a whole day. So before going to bed, he informed Guan Yu of the remaining experiments and asked Guan Yu to help him with the work.

"General Guan, you can go find the blacksmith at dawn.

Still, chop the sesame, put a few handfuls of sesame into the pot, pour half a jar of vinegar, and then add three-quarters of water.

Then, add a cover, melt iron to seal the cover, and then ask the blacksmith to fill up the air holes."

After explaining, Li Mengxi thought again and again, "General, you should remember to wear armor when burning firewood.

Furthermore, if you can use hard wood, use hard wood. When you need to add more firewood, go closer and add more firewood. After adding more firewood, walk farther away."

"Besides, when you light a fire, you can burn it for a while and stop it for a while."

The reason why Li Mengxi made this explanation and let the burning stop for a while was because Li Mengxi felt that it would be better if the pot had a vent and it would not explode, but if the vent was blocked, the contents of the pot would be

The air pressure is so high that it can easily explode.

If a completely sealed pot is heated continuously, the air pressure in the pot will continue to increase. Eventually, the iron pot will no longer be able to withstand the pressure and eventually the iron pot will explode.

Therefore, it is necessary to burn for a while and stop for a while, so that the air pressure in the pressure cooker can always be maintained at a very high level, and the air pressure will not increase without limit and cause the pot to fry, which is the best of both worlds.

Li Mengxi repeatedly made sure that Guan Yu knew all the processes and details, and repeatedly told him to stay away from the pot. It was not a joke if the pot exploded. After receiving Guan Yu's repeated assurances, Li Mengxi yawned and went back to sleep.

When Li Mengxi went to the bedroom to sleep, not long after, his younger brother Xiao Zhuan woke up.

Xiao Zhuan woke up and saw that his brother didn't get up, so he insisted on waking Li Mengxi up.

Li Mengxi was extremely sleepy and didn't want to stay in bed to set a bad example to his younger brother. He was too sleepy, so he had to suppress his sleepiness and get dressed.

Soon it was dawn.

Li Mengxi forced himself to have breakfast with his younger brother, then sent his younger brother to school, and then finally went back to sleep.

The new day is the 19th day of the twelfth lunar month.

Li Mengxi went to bed, and Guan Yu took care of all the papermaking.

Guan Yu followed Li Mengxi's instructions, chopped the sesame seeds, found vinegar, and added three-quarters of water. Then he ordered the craftsmen to fire up a blast furnace to melt the iron. After the iron melted, he sealed the pores on the pot lid, and then put the pot

The edges are also sealed tightly.

Then, he strictly followed the process described by Li Mengxi and used hard wood to light the fire. After the fire started, people stood far away.

Throughout the morning of the 19th, Guan Yu kept adding firewood and moving away.

A craftsman volunteered to come forward to burn firewood, but Guan Yu refused.

Li Mengxi said that the consequences of the frying pan were so terrible. The hot air hit his face, and his skin was burned off in an instant, and his eyeballs hung out. The pot exploded, and the broken iron flew everywhere. A small iron star scratched his neck, and the person died.

He died on the spot, which is too scary to say.

Li Mengxi deliberately scared Guan Yu because he was afraid that Guan Yu would be brave and arrogant and not take it seriously. He was afraid that something would happen. The danger of the frying pan was deeply rooted in Guan Yu's heart, so Guan Yu could be cautious.

Get together.

The pressure cooker burned all morning without any incident.

Just after noon, while Li Mengxi was still sleeping, something happened to the simple pressure cooker.

As the pot continued to burn, I don't know whether it was due to the deformation of the pot or a structural defect. Suddenly there was a loud bang and the lid of the pot exploded. With a loud bang, a piece of thin iron as big as a palm was blown up into the sky several feet high by the water vapor.

This sudden loud noise made the blacksmiths scream in shock.

Guan Yu raised his head and looked at the broken iron that was shooting up. Guan Yu looked calm, stroking his long beard, but his eyes moved slightly, thoughtfully.

After another hour, Li Mengxi finally woke up after catching up on his sleep. He got up, got dressed, and went to the blacksmith camp.

As soon as Li Mengxi arrived at the blacksmith camp, he found the pot on the ground on one side and the blacksmiths were forging iron.

Seeing Li Mengxi coming, Guan Yu came up to him and said, "Xi'er, the pot just exploded."

Guan Yu said calmly, but Li Mengxi let out a surprised sound and asked quickly, "Exploded?!"

"It exploded."

"Did it hurt anyone?"

"Fortunately not."

The pot did indeed explode, as expected.

Li Mengxi walked to the pot to see the pot, and Guan Yu followed behind.

When we got to the pot, the sour smell in the pot was overwhelming, and a pot of messy and turbid grass soup was boiling.

Li Mengxi checked the pot again. The pot was fine, but the lid might have blown.

At this time, Guan Yu clicked his tongue and exclaimed, "Xi'er, you didn't see it. The pot exploded and flew several feet high in a whoosh! Tsk."

Guan Yu was full of admiration when he talked about that time.

Li Mengxi found this a bit funny. He could probably imagine the scene at that time. The pot exploded and the lid flew high with a whoosh, and everyone in the audience was shocked.

But Guan Yu's next words immediately surprised Li Mengxi.

After Guan Yu praised the pot for frying Tie Fei, he asked, "Xi'er, tell me, if we make a bigger pot, tilt the pot toward people, and replace the lid with a knife, if it explodes, won't the knife swish?

It flies out, tsk! One knife flies out and can kill the enemy!"

Li Mengxi suddenly raised his head and looked at Guan Yu in shock. He opened his mouth wide. His heart was full of shit at this moment. (Fuck, Guan Yunchang, you want to play with a steam cannon?!)

Li Mengxi was so surprised that he couldn't understand. How could Guan Yu see the pot lid flying up and think of using steam as a weapon?

When the pot was being fried, how violently did the pot lid fly away, and how violently did Guan Yu become interested in the lethality of steam? Could it be that the pot lid flipped off the human head?

Li Mengxi couldn't help but look around. Looking around, all the heads were in good condition, and no one's head was missing.

After being reminded by Guan Yu, Li Mengxi thought seriously about steam weapons? Steam-driven crossbows? Once his thoughts started to unfold, Li Mengxi's thoughts started to fly, and he had many ideas in an instant.

"Yes, the steam pressure cooker can be used as a weapon!" Li Mengxi nodded affirmatively. He looked at Guan Yu, "It can be made into an iron pipe. The iron pipe is connected to the pressure cooker. A crossbow arrow is placed in the pipe, and then with a whoosh, the crossbow arrow is released.

Fly out.

This is for one use, or you can give it a try.

In addition, it is said that water vapor is hotter than boiling water. Boiling water is only a hundred degrees, while steam is hundreds of degrees. When defending a city, water vapor may hurt people. If it is hot water, and the enemy soldiers wear hats and raincoats, the hot water will still be hot.

It can be blocked for a while, but the heat is coming in all directions, even if there is a coir raincoat, it will be difficult to stop it!"

Li Mengxi's eyes rolled, and he murmured thoughtfully, "Thankfully, the general reminded me that I remembered that there is another thing, using steam as a machine, which can bring about earth-shaking changes in people's livelihood, and can be utilitarian for thousands of years!"

Inspiration came suddenly. Li Mengxi couldn't wait to take out his pen and ink and listed [Steam Pipeline Ballista], (to be verified), [Using high-temperature steam to defend the city] (to be verified), and most importantly, [Steam Power Machinery],

Write them down together.

The first two are not difficult. Whether it is a steam crossbow or a steam jet gun, it is easy to make with an iron pipe, a pressure cooker, and a valve to control the gas.

But steam-powered machinery can bring about earth-shaking changes in productivity, but at the same time, it is quite complicated.

Li Mengxi only knew that steam could be used to make machinery and that it could drive huge wheels loudly and loudly, but he did not know the more detailed structure.
Chapter completed!