Ming Zuo

Chapter 354
What Zuo Menggeng has to do is naturally the famous Magdeburg hemisphere experiment.

But now it will be renamed the Linqing Hemisphere Experiment.

The specific method is still the same as the original version.

Two iron balls are put together (copper balls are used in the Magdeburg hemisphere experiment), and the middle is padded with leather to act as a seal.

Speaking of this, Zuo Menggeng thought that rubber has already begun to be used in Europe.When the time is right, be sure to introduce the rubber.

Because in the Magdeburg hemisphere experiment, the thing used for sealing in the middle is the rubber ring.

After the two semi-hollow iron balls are closed, water is poured into them from the small holes.After filling, pump the water out.

The reason for not directly pumping air is because there is no equipment to detect air in this era, and it is impossible to determine whether there is any remaining air in the sphere.

During the whole process, Zuo Menggeng not only asked Kong Xiangru to personally inspect and supervise, but also invited some random people to come and witness one by one.

Human curiosity is very great.

One guy even came up with a hammer and banged on the iron ball.Well, with the crisp knocking sound, no one has any doubts about the iron ball anymore.

Wang Siyi also did it herself, put the two iron balls together, and pulled them apart at will.

"You're not lying."

Zuo Menggeng smiled slightly, full of confidence.

"Next, it's time to witness the miracle."

After the iron balls were filled with water, drained, and sealed, Wang Siyi stepped forward and grabbed the iron rings on both sides.

Just kidding...

The iron balls that were closed together remained motionless.

Wang Siyi's face changed slightly, and she added a little more strength.

As a result, the iron balls were still tightly closed together, as if they were born like this.

"Hey, evil sect."

Wang Siyi did not give up, sat down on the horse, exhaled, and exerted the greatest strength.As a result, the tired arm was about to be torn, and the iron ball was still closed together well.

Wang Siyi, who prides herself on being extremely powerful, was dumbfounded.

"Zuo Menggeng, what's going on?"

Zuo Menggeng picked up the iron ball and showed it to everyone.

"Everyone, after a series of operations just now, the air in this ball has been drained. So under the pressure of the outside atmosphere, the two semicircles are so tightly closed together. With the divine power of General Wang , can't open it."

Someone in the crowd shouted: "General Zuo, General Wang is not the one you invited, right?"

The crowd laughed, and Zuo Menggeng also laughed.

"I know you don't believe it. Then, we don't need people, how about using Malayalam instead?"

As he spoke, he handed the iron ball to the soldier, and let the ropes of the four horses on each side be tied to the iron ring.

Shandong people are serious, and a few people ran out immediately.

"General, can we come here for this horse-driving job?"

Obviously, they were afraid that the soldiers might not do it carefully.

Zuo Menggeng looked at a few people and asked the people around him, "Do you believe in them? If you don't believe them, you can have a few more people."

At that time, a few more people ran out of the crowd, both adults and children.

And under the discussion of the surrounding people, the identities of these people have also been confirmed, and they cannot be trusted.

Zuo Menggeng divided them into groups and said, "All of you are ready, listen to my orders. When I say start, you will drive the horses and pull hard to both sides."

Several people nodded, even a little nervous.

More nervous than them, of course, are the onlookers around.

"Hey, you say, how strong are these eight horses, can they pull them apart?"

"It's definitely possible. For such a small thing, not to mention eight horses, even eight people pulled away."

"That is, what is the atmospheric pressure? It's nothing."

Over at the VIP seats, the bosses were also very nervous.

Xu Guangqi was afraid that his son-in-law would be embarrassed, so he grabbed Deng Yuhan and asked, "Is there really atmospheric pressure?"

Deng Yuhan didn't say anything, but Luo Yagu answered for him.

"The man who discovered atmospheric pressure was my compatriot Torricelli. His theory was widely spread in Europa, but there were also many people who did not believe him."

Yes, atmospheric pressure is not shared by everyone in Europe these days either.Otherwise, there would be no Magdeburg hemisphere experiment.

When Xu Guangqi heard this, he became even more worried.

"This...if this fails, wouldn't it be ridiculous?"

Xu Ruolin was beside her and quickly comforted her in a low voice.

"Yaya can be relieved, he is not a fool. Before today, he has experimented many times, and everything is foolproof."

Xu Guangqi paused, his eyes gradually became brilliant, and then he laughed.

"You guys are all little foxes."

Yes, before doing the experiment here today, Zuo Menggeng had already verified with the students many times in private.

After all, this experiment is different from the sphere material and sealing material in the Magdeburg hemisphere experiment. Who knows if the results will be the same?
Not sure about this, how could Zuo Menggeng dare to experiment directly in public?

It can be said that if he dares to stand here today, it means that he will never lose.

In the field, those who took the initiative to jump out to participate have already followed his orders and began to drive the horses to pull the iron balls in opposite directions.

Everyone could see it clearly, the ropes were pulled up one by one and then stretched straight, which showed that the horse had exerted all his strength.

The iron ball hovered in mid-air under the power of both sides.

But no matter how hard the horses on both sides tried, the iron ball just couldn't be pulled away.

The whole process of closing the iron balls was seen by everyone, and there was nothing unusual about it consciously.But now that eight horses can't pull the iron ball away, many people are dumbfounded.

"This...this...this..."

Kong Xiangru danced with his hands, and even ran to the front on purpose, and even touched the iron ball with his hands. After he was convinced that it was the iron ball he had verified, his whole body turned into wood.

It turns out that the air in this world actually contains such great power!

All the viewers were shocked, and they pointed at the iron ball and talked a lot. At the same time, they also learned the knowledge well.

Zuo Menggeng was most satisfied with this effect, and ordered more horses to be added.

This time, the number of horses increased to [-]. They also tried their best to pull the two half-iron balls apart with a loud bang.

Looking at the empty appearance of the iron ball, everyone still felt magical.

It's just these two little things, but after taking the air out of them, they are so inseparable.

Zuo Menggeng didn't stop here, and stood up again and said, "Everyone, in order to verify the existence of atmospheric pressure, there is another experiment here."

This time, what Zhang Jinhai and others brought up was a wooden barrel.

Similarly, after someone came up to check, the final seal was completed, and then the air was extracted with a suction cylinder.

The reason why there is no water injection and extraction this time is just to present a more intuitive effect to the public.

Just as Zhang Jinhai and the others were trying to extract the air, the wooden barrel that had been placed quietly suddenly made a loud crackling noise and shattered in full view.

This is simply more terrifying than the big change of living people, causing everyone to take three steps back.

Only Zuo Menggeng acted as usual, pointing at the broken wooden barrel and said: "Everyone has seen that, because the air in the wooden barrel is sucked out, the atmosphere outside the wooden barrel relies on the strong pressure to squeeze the wooden barrel. Broken. I think, through these two experiments, there should be no objection to the existence of atmospheric pressure, right?"

Kong Xiangru squatted on the ground and checked the pieces of the wooden barrel one by one, unable to calm down for a long time.

"General, there is something I don't know about this old man, please enlighten me."

He first pointed to the iron ballway: "Why is the air in the iron ball not crushed by this ... atmospheric pressure after being extracted, and the wooden barrel is broken to this point?"

Zuo Menggeng gave a rough explanation.

"The atmospheric pressure around us has a numerical value. The hardness of the iron ball exceeds the atmospheric pressure, so it cannot be crushed. But the hardness of the wooden barrel is lower than the atmospheric pressure, so once there is no air in it, this is the end. "

Kong Xiangru is very good to ask.

"Then...then...then the flesh and blood of our people can't compare to wood, why is it not killed by atmospheric pressure?"

Everyone around them raised their ears, and they were very concerned about this issue.

Zuo Menggeng smiled and said loudly: "Why can we humans be safe? Not only us, including pigs, cattle, horses, sheep and other things in the world have not been squeezed to death by atmospheric pressure. It's just because there is air in our bodies. We People breathe all the time, and an important role is to maintain the balance of pressure inside and outside the body. In this way, we can be safe and sound.”

"call out……"

Good guy, the scene of tens of thousands of people breathing together was like thunder.

People are really curious and want to experience the existence of air pressure.

Not to mention, in the past, people were accustomed to breathing, but they were neglected.This special experience can immediately feel the slight difference after the air enters the body.

Sure enough, after inhaling, there will be a slight swelling in the body.

People with little knowledge of natural science mistakenly think that this is atmospheric pressure.

But in any case, through this public experiment, the first scientific popularization to the public has been completed.

In addition, what impressed the people the most and talked about endlessly afterward was the costumes of Zuo Menggeng and others.

Young people who have the courage to pursue innovation and change, especially those from rich families, have begun to ask around where they can buy such clothes.

Under such circumstances, in the corner of Chaoguan Wharf, the signboard of "Artisty" has been hung up and is ready for business.

(End of this chapter)