What Zuo Menggen wants to do is naturally the famous Magdeburg Hemisphere Experiment.
But now it needs to be renamed Linqing Hemisphere Experiment.
The specific method is still the same as the original version.
The two iron balls are put together (the Magdeburg hemisphere experiment used copper balls), and a leather pad is used in the middle to seal.
Speaking of this, Zuo Mengeng thought that rubber has already begun to be used in Europe. When the time is right, rubber must be introduced.
Because during the Magdeburg hemisphere experiment, the thing used for sealing in the middle was a rubber ring.
After the two semi-hollow iron balls are closed, water is poured into them through the small holes. After filling, the water is pumped out.
The reason why the air is not pumped directly 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 entire process, Zuo Mengeng not only asked Kong Xiangru to inspect and supervise it personally, but also randomly invited some people to come up and witness it one by one.
Human curiosity is very great.
One guy even came up with a hammer and knocked on the iron ball. Well, with the crisp knocking sound, no one had any doubts about the iron ball.
Wang Siyi also took it upon herself to put the two iron balls together and pull them apart at will.
"Aren't you lying?"
Zuo Mengeng smiled slightly, full of confidence.
"Next, it's time to witness the miracle."
After the iron ball was filled with water, drained, and sealed, Wang Siyi stepped forward again and grabbed the iron rings on both sides.
Just pull...
The iron balls closed together did not move at all.
Wang Siyi's expression changed slightly and she put in a little more effort.
As a result, the iron balls still tightly closed together, as if they were born that way.
"Hey, Xie Men."
Wang Siyi didn't give up, she sat down and leaned on her horse, exhaled loudly, and tried her best. As a result, her tired arms were about to tear, but the iron ball was still tightly closed together.
Wang Siyi, who prided himself on being powerful, was dumbfounded.
"Zuo Mengeng, what's going on?"
Zuo Mengeng picked up the iron ball and showed it to everyone.
"Look, 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 were tightly closed together. With General Wang's magical power
, can't open it."
Someone in the crowd shouted: "General Zuo, General Wang is not the one you invited, right?"
The crowd burst into laughter, and Zuo Mengeng also laughed.
"I know you don't believe it. Then, if we don't use people, how about Malayla instead?"
As he spoke, he handed the iron ball to the soldiers and let the ropes of four horses on each side be tied to the iron ring.
Shandong people are very accepting of death, and several people immediately ran out.
"General, can we do the work of driving horses?"
Obviously, they were afraid that the soldiers might not be careful.
Zuo Mengeng looked at a few people and asked the people around him, "Do you believe them? If you don't, you can bring in a few more people."
Immediately, a few more people came out of the crowd, including adults and children.
Moreover, after discussions among the people around them, the identities of these people were confirmed, and they could not be peddlers.
Zuo Mengeng divided them into groups and said: "You all are ready and listen to my orders. When I say start, you drive the horses and pull them to both sides."
Several people nodded, but they were all a little nervous.
The ones who were more nervous than them were naturally the onlookers around them.
"Hey, tell me, how powerful are these eight horses? Can they be pulled apart?"
"It certainly can. Such a little gadget can be pulled apart by eight people, not to mention eight horses."
"It's just that the atmospheric pressure is strong, it's just a fiction."
Over at the VIP table, 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, Luo Yagu answered for him.
"The person who discovered the strong atmospheric pressure was my compatriot Torricelli. His theory was widely spread in Europe, but many people did not believe his conclusion."
Yes, atmospheric pressure is not recognized by everyone in Europe today. 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 nearby and quickly comforted her in a low voice.
"You can rest assured Yaya, he is not a random person. He has tried it many times before today, and everything is foolproof."
Xu Guangqi paused, his eyes gradually became brighter, and then he laughed.
"You are all little foxes."
Yes, before doing the experiment here today, Zuo Mengeng had actually verified it with the students many times in private.
After all, the sphere material and sealing material in this experiment are different from those in the Magdeburg hemisphere experiment. Who knows whether the results will be the same?
Not sure about this, how dare Zuo Mengeng directly experiment in public?
It can be said that the fact that he dares to stand here today means that he will never lose.
In the field, those who took the initiative to participate had followed his orders and began to drive the horses to pull the iron balls in opposite directions.
Everyone could see clearly that the ropes were pulled up one by one and then stretched straight, which showed that the horse had exerted its full strength.
The iron ball hovers in mid-air with the support of power from both sides.
But no matter how hard the horses on both sides tried, the iron ball just couldn't be pulled away.
Everyone had seen the whole process of closing the iron ball before, and there was nothing surprising about it. But now that the eight horses couldn't pull the iron ball apart, many people were dumbfounded.
"This...this...this..."
Kong Xiangru danced and ran up to him, and even touched the iron ball with his hand. After he was convinced that it was the iron ball that 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. They pointed at the iron ball and talked about it. At the same time, they also learned a lot of knowledge.
Zuo Mengeng was most satisfied with this effect and ordered more horses to be added.
This time the number of horses increased to sixteen. They also tried their best and finally pulled the two and a half iron balls apart with a loud bang.
Looking at the empty appearance of the iron ball, everyone still felt that it was magical.
Just two little things, just taking the air out of them, became so inseparable.
Zuo Mengeng didn't stop there. He stood up 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 having someone come up to inspect it, complete the final sealing, and then use an air pump to extract the air.
The reason why there is no water injection and extraction this time is just to present a more intuitive effect to the public.
While Zhang Jinhai and others were trying hard to extract air, the wooden barrel that had been placed quietly suddenly made a loud crackling sound and shattered into pieces in front of everyone.
This was simply more terrifying than being transformed into a living person, causing everyone to take three steps back.
Only Zuo Mengeng behaved as usual, pointing to the broken barrel and saying: "Everyone has seen that because the air in the barrel was taken away, the atmosphere outside the barrel relied on strong pressure to squeeze the 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, checking the fragments of the barrel one by one, unable to calm down for a long time.
"General, I have something unclear, please enlighten me."
He first pointed to the iron fairway: "Why is it that after the air in the iron ball is extracted, it is not crushed by this... this atmospheric pressure, but the wooden barrel is shattered to this point?"
Zuo Mengeng gave a rough explanation.
"The atmospheric pressure around us is strong, and the strength has a certain value. The hardness of the iron ball exceeds the atmospheric pressure, so it cannot be destroyed by squeezing. But the hardness of the wooden barrel is lower than the atmospheric pressure, so once there is no air inside, this is what will happen.
"
Kong Xiangru is quite easy to ask questions.
"Then...then...then our flesh and blood bodies are incomparable to wood, so why are we not crushed to death by the atmosphere?"
Everyone around them pricked up their ears and were very concerned about this issue.
Zuo Mengeng laughed and said loudly: "Why can we humans be safe and sound? Not only us, but also everything in the world, including pigs, cows, horses and sheep, have not been squeezed to death by atmospheric pressure. It's just because there is air in our bodies. We
People are breathing all the time, and an important role is to maintain the balance of pressure inside and outside the body. Only in this way can we stay safe and sound."
"call out……"
Good guy, the scene of tens of thousands of people breathing together was like thunder.
In fact, people are very curious and want to experience the existence of air pressure.
Not to mention that in the past, people were accustomed to breathing, but they ignored it. With this special experience, you can immediately feel the slight difference after the air enters the body.
Sure enough, after inhaling, there will be a slight feeling of expansion in the body.
People who have insufficient knowledge of natural science mistakenly think that this is atmospheric pressure.
But no matter what, through this open experiment, the first scientific popularization to the public was completed.
In addition, what impressed the people the most and talked about endlessly afterwards was the costumes of Zuo Menggeng and others.
Young people who are brave enough to pursue innovation and change, especially those from rich families, have begun to ask around where they can buy such clothing.
Under such circumstances, in a corner of Chaoguan Pier, the signboard of "Artistry" has been hung up and it is getting ready for business.