The weapon tycoon who traveled to Daqin

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Shangwen shrugged helplessly.

"You don't eat meat, and you don't say a word. The victim spent more than two hours on you." Ying Yu felt very wronged when she thought of her painstaking efforts.I finally made chicken soup for this white-eyed wolf.did not expect.They don't even eat meat.I'm furious.

"It won't take so long to cook chicken soup! I remember that people use a pressure cooker to finish it in an hour or two." Shangwen asked suspiciously.

"You." Ying Yu said, pointing at Shang Wen's head.

"You white-eyed wolf." After speaking, he walked out the door.

"Does it really take that long?" Shangwen asked.

"Boom." Ying Yu kicked the door open again.He picked up the chicken soup and put it in a food box and walked out.You don't drink the chicken soup I made myself.Someone is drinking.When Ying Yu walked out, she thought that she couldn't take advantage of this white-eyed wolf.Since this idiot doesn't drink.It's better to dedicate it to your father and king.Ying Yu has never been in a losing business.

"Ah." Shang Wen sighed as he watched Ying Yu go out.

"Oh, I remembered. At this moment, what kind of pressure cooker is there?" Shang Wen said, patting his head.After Ying Yu made such a fuss, Shang Wen finally understood.

Then Shangwen hurriedly drew up the design drawings.Shangwen personally ran to Wenyang Arsenal.There are punching machines there, and there are all kinds of materials.Pressure cookers have been around since the 17th century.And Shangwen felt that according to Qin's current level, this pressure cooker should be able to appear.Why didn't that appear.Is there no need for people to make soup, or what reason.Shangwen thought about it in the car.

459 Proving Atmospheric Pressure

The principle of a pressure cooker is simple to Shangwen.But for Qin, who has just established an education research system.This is still an unknown mystery.And discovery requires a process.For example, this problem was discovered by Captain Ma Zhendong who participated in meteorological observation, but he could not explain this phenomenon.And Shang Wen certainly knew what was going on.

The pressure cooker is composed of a pot body, a pot cover, a fusible sheet, an air release hole, a safety valve, a sealing rubber ring, and other new forms of air release channels.But now, steel materials are very tight.Don't say it's a pot.Thinking of this, Shangwen explained in his heart why it cannot be popularized.

The generation of new materials takes a time process.Priority usage levels are also different.These Shangwen can't control it for the time being, so they go to manufacture, steel, which becomes an important material for high pressure.Some key things Shangbun all use steel instead.Such as air vents.Pressure cookers require a locking mechanism.This structure can be used on guns.But the appearance of the thread cutter can solve this problem for Shangwen.

The pot body is made by stamping.rather than handcrafted.Before, there was an "iron helmet" in the Qin State Armory, which was stamped from a whole piece of iron plate and was used to block bullets.But individual equipment is already very high.Equipment "iron helmet." Obviously not cost-effective.Ever since, it was abandoned.The production mold was changed to the production of iron pot.Cast iron pots are unusually expensive for coal.The price of coal needs to be shipped from the far north.Therefore, Qin's pots began to be made of medium-sized stamping.

The pressure cooker is done.Workers don't understand what this thing is for.Shangwen didn't want to explain, so he did an experiment himself.Cook the meat.

Same weight, same water, same fire.The time to open the pot is short.The result is no guesswork.

The pressure cooker is a natural winner.

"What is this?" Qin Wang put down the evening paper in his hand and asked.Zhao Gao gently put down the pan in his hand and replied.

"Your Majesty, this is the chicken soup sent by the Eldest Princess. Her Highness made it herself." Zhao Gao said.

"Oh. Yu'er can cook soup too. Let me have a taste." As he said that, King Qin put down the newspaper in his hand, and the current King Qin handed over most of the work to Shang Wen.And he just has to check it at any time.The emergence of newspapers has made politics more transparent to some extent.Qin Wang reads the newspaper every day, which is equivalent to knowing all aspects of Qin.Delegating power must be under certain monitoring before King Qin dares to do so.

"En." Qin Wang picked up the jade spoon and took a sip.

"My lord, how is it?" Zhao Guo asked in a low voice.

King Qin swallowed it more painfully.

"It's not too hot." King Qin said.In fact, Ying Yu put too much salt in it.After Mei'er put away the seasoning, she got out the salt in advance.But Ying Yu saw that there was too little salt, so he added an extra spoonful.And it's a tablespoon.Everyone else wanted to try, but Yingyu thought it was done, so she gave it directly to Shangwen.Shangwen didn't move.Then send it to King Qin.Only King Qin suffered.However, as a father, he is naturally happy for his children to be able to make soup and respect him. Even if there is something wrong, he naturally does not say anything.

And Ying Yu, who was eavesdropping outside the window, said. "That's not right. I've boiled it for more than two hours, it should be ready."

"The principle of a pressure cooker is very simple, because the boiling point of water is affected by the air pressure. The higher the air pressure, the higher the boiling point. In high mountains and plateaus, the air pressure is less than 1 atmosphere, and water can boil less than 1ooc. Eggs are cooked in ordinary pots. It is undercooked. When the air pressure is greater than 1 atmospheric pressure, the water will boil when it is higher than 1ooc. The commonly used pressure cooker is designed using this principle. The pressure cooker seals the water quite tightly, and the water evaporates when heated. The water vapor in the pressure cooker cannot diffuse into the air, and can only be kept in the pressure cooker, which makes the pressure inside the pressure cooker higher than 1 atmospheric pressure, and also makes the water boil when it is higher than 1ooc, so that a high temperature and high pressure environment is formed inside the pressure cooker. The rice is easy to cook quickly. Of course, the pressure in the pressure cooker will not be exhausted, or it will become a bomb." Shang Wen explained to everyone.

"This is called atmospheric pressure, so it's so powerful!" The workers exclaimed.

"Atmospheric pressure exists naturally, not human beings." Shang Wen patiently explained.

"Oh." Everyone nodded.Seeing that everyone still seems to understand.Shang Wen believes that it seems that Qin's physics is in urgent need of great progress.Otherwise, if you can't even recognize the atmospheric pressure, then the subsequent experiments cannot be done at all.Because, it is this pressurization and decompression that gives chemistry a test method, so that a large number of chemical industrial products can be extracted from petroleum and coal.Many of these industrial products are necessary for the use of weapons.

There are many experiments to prove the atmospheric pressure.For example, the most famous is the Madberg hemispheric experiment.And the Torricelli experiment.This experiment measured the value of atmospheric pressure.Shangwen decided to follow the example of Mayor Ma Debao and openly conduct this experiment.

Shang Wen draws a blueprint and asks the workers to make it.At the same time, Shangwen asked about the pumping device.The answer is yes.Because many places have begun to use water pumps.Already used on trains.It's just that people don't know how it works.After understanding this situation, Shang Wen decided to make it himself.

Rubber rings were used in Ma Debao's experiments back then.However, Shangwen did not have such materials.Shang Wen successively experimented with various sealing materials.Most of Qin's sealing materials are graphite, steel rings or other materials.The most expensive material is undoubtedly the resin, which contains a large amount of rosin and the like.There is also animal gelatin boiled from animal bones, which is capsules.

In order to do this experiment, Naofumi had to use two mixtures of resin and gelatin, so the experiment failed anyway.Naofumi in particular used leather as the sealing material.

Two thirteen-inch copper balls are filled with water under a special seal and bonded together.The water is then pumped out, making it a vacuum.Then let Mara do it.However, it is already early morning.Not everyone can see it.As a last resort, Shang Wen could only turn on the pumping place.Return to normal value.Without an audience, meaning is lost.

But Shang Wen decided.This experiment will be carried out tomorrow afternoon.Shangwen notified the news to the major newspapers.The newspaper office has dedicated staff on duty.They are in charge of the morning newspaper, because every day when the big clock reaches six.Newspapers must be delivered to every household that subscribes.

It was already four o'clock in the morning when the newspaper office received the news.Newspaper printing has begun.In order to grab the favorable position of the news, they had to issue another special issue.Announce the news.

460 Xianyang Hemisphere Experiment

The news came with the Morning Post special issue.After people heard the news, they were all guessing that the prime minister had something new to invent.People are ready to take a look in the afternoon with a curious attitude.

People wait for the morning hours to pass quickly.And Shang Wen gave the pressure cooker to Ying Yu.At the same time, a note was attached: "With him, it only takes two hours to make soup." Shangwen wrote.

"White-eyed wolf. Don't want to drink my soup in the future." Ying Yu said fiercely.

"Drink the soup. I'll let you drink the soup." Ying Yu rewrote a note and sent it back together with the pressure cooker.

"I'll punish you for making soup for me. Otherwise, I'll treat it as soup." Shangwen couldn't help smiling when he saw this note.

"I don't know how to make soup." Shang Wen said.

Look at the pressure cooker.Shangwen decided to advertise for free to promote this pressure cooker.

afternoon.On the open space outside the South City Gate.People are already crowded around.And Shangwen is busy making some strange preparations.The first is to check how the sealing material of the two copper balls is.Then people prepared a dozen horses.

Qin Wang also learned the news in the newspaper.Feel very strange.So I also felt the excitement upstairs at the city gate early.The last time the phonograph came along.It is because Shangwen did not notify.This time, Shangwen notified in advance.People guess that they don't know what new invention will come out this time.At a time when the public is discussing.Shang Wen finished the inspection.

"I am very happy that everyone can come. This time, the experiment I am going to do is about atmospheric pressure. It is to prove how much pressure the air around us has." Shang Wen said.As soon as these words came out, everyone was in an uproar.

"What, the surrounding air is under pressure?" one asked.

"Is this possible? The air is so light, how powerful it can be." A person said indifferently.

Saying that, Naofumi began to prepare, as he did yesterday.seal.Fill with water to combine.Then use the water pump to evacuate the water in the two balls.

"It's full of water first. The water squeezes out the air. Then we pump the water out. There's no more air in here." Shang Wen finished speaking.

"Now, let's see how powerful the atmosphere around us is." Shangwen waved his hand after finishing speaking.

Two coachmen stepped forward and fixed the iron ball with ropes, and then used two horses to pull it in different directions.

"Just this copper ball, and two horses. I can pull it apart." A strong man said.

"Can you be as powerful as two horses?" A man said contemptuously.

"Look. Both horses can't move." Another man said eagerly.

"What?" Everyone looked eagerly.

"The two copper balls can't be pulled apart by two horses." King Qin said while watching.In his impression, this is very easy.

"Get on two more horses." Shangwen ordered.