The sun is shining again, the land is already full of crops in early summer, and after a harsh winter, the mood of the people is also lively.

In a field, hundreds of people were gathered there.

I saw that in the crowd, Zhao Yan was standing there, holding a round ball in his hand, and there were more than 20 horses on the side. In the crowd of onlookers, some people asked in confusion from time to time: "Is the chief soldier going to perform a circus?" ”

"I don't know."

"You know what, the chief soldier is doing an experiment on atmospheric pressure." Suddenly, a young man with a pencil and paper in his hand said.

"Atmospheric pressure? What is it? Someone asked puzzled.

"This is something that our Academy of Science and Technology is researching, and I won't be able to tell you clearly for a while." Another middle-aged man who was watching the situation intently said.

These people were all literati and had studied Western studies. There were thirty-two people, all of whom were recruited by merchants from other places.

Among them were even five Western missionaries, and Zhao Yan organized these people and established a science and technology institute. The people of the Academy of Science and Technology are his students.

One of the missionaries said in fluent Chinese, "Atmospheric pressure? I don't think there is such a thing! If there is real pressure, then aren't we crushed to death? ”

"Yes! He was only a general, not a scholar, and he should have led the soldiers, not us. Another Westerner said.

These missionaries who were proficient in Western studies scoffed at Zhao Yan's desire to teach them, and their time in Daming was not short, in general, Oriental people paid more attention to the application of a single object, but they were very neglectful of those systematic knowledge.

It should be up to them to teach them, and this general actually wants to teach them knowledge, in the words of the Chinese, isn't it self-sufficient?

Truth be told, however, the general was paid very well, and the missionaries did not stop him from making such unreasonable demands.

Instead, with the attitude of watching jokes, they looked at Zhao Yan who was arranging experiments in the field with great anticipation, this Dongfang general would definitely be disgraced!

Soon Zhao Yan finished arranging everything in the field, and saw a huge rope tied to each side of the ball, and on both sides of the rope were four tall horses that were already in place.

Added up to eight horses on both sides, each with a groom on standby.

What Zhao Yan wants to do today is to give them an experiment on atmospheric pressure to prove the existence of atmospheric pressure, and the concept of atmospheric pressure he proposed was first rejected by those Western missionaries.

Westerners in this era still did not believe in the existence of atmospheric pressure, so Zhao Yansuo decided to do a hemispheric experiment. In the future, the 'Magdeburg Hemispheric Experiment' will be changed to the 'Zhaojiabao Hemispheric Experiment'.

The Magdeburg Hemispheric Experiment happened in 1654, and now it's 1635, 19 years earlier!

"Do you see the ball?" Zhao Yan touched the big ball with his hand and said to the onlookers, "This ball is actually separated, and the air inside has been pumped out just now, now let's take a look at the size of the atmospheric pressure!" ”

Those who don't understand Western studies don't know what to say when they hear the word air. However, the members of the Academy of Science and Technology knew about it, and watched Zhao Yan pump out the air in the two hemispheres.

This hemisphere is very expensive, it can be said that it took a lot of effort, it took half a month, and the most skilled blacksmiths were mobilized to create it, and the airtight surname is already very good.

"Ready, go!" As soon as Zhao Yan's voice fell, the eight grooms urged the horses vigorously, and the thick rope suddenly tightened.

The eight war horses were constantly pulling in different directions, as if it was a tug-of-war.

"Oh! Oh my God, why hasn't it been pulled open? One of the missionaries exclaimed in the out-of-tune Chinese.

"Stop, add two more horses." Zhao Yan ordered. The tug-of-war stopped, and two grooms, who were on standby on the side, hurriedly led their horses forward and tied ropes to the horses.

"Ready, start ......"

The groom urged the horses again, and the ten horses pressed forward desperately, and the hooves of the horses made deep marks on the ground, but the balls were still together.

The members of those science and technology institutes suddenly exclaimed again, and the ten horses couldn't pull it!

Soon he stopped again, and took two more heads and went immediately.

Twelve horses!

But the ball still hasn't been pulled apart.

Fourteen horses!

"I think I can pull it away this time!" Everyone thought in their hearts.

But the result was unexpected again, and the strength of the fourteen horses still did not pull the ball away.

Soon it was increased to sixteen, but the hemisphere remained motionless as sixteen horses pulled desperately.

"Eighteen horses!" Zhao Yan shouted.

Eighteen horses were tied to ropes, and the groom urged the horses again!

Soon the two sides reached a stalemate, and the rope creaked in the tightness.

Suddenly, I heard a loud "pop ......", and the horses on both sides suddenly galloped forward, and the ball was finally pulled apart and became two hemispheres, and the horses dragged on the ground as they ran.

"Pull away, pull away, eighteen horses!" A member of the Academy of Science and Technology exclaimed, and everyone cheered for a while.

"Richardson, do you still think that atmospheric pressure doesn't exist?" Surrounded by everyone, Zhao Yan asked one of the missionaries with a smile.

"General, you are so great, you are the one who let me out of the foolish misunderstanding." The missionary named Richardson shrugged his shoulders and praised with a red face, as if he had forgotten that he had strongly rejected Zhao Yan's theory of 'atmospheric pressure'.

"Yes, General, you are great enough to light up the whole sky, and it is a pleasure to study science under your teaching." An English missionary named Putragus praised on the side.

"Study hard! As long as you can contribute to my Daming's scientific and technological research, your benefits are absolutely indispensable. Zhao Yan patted Richardson on the shoulder.

"General, is it possible that if we contribute to the scientific and technological research of the Ming Dynasty, we will be able to spread the gospel of the Lord to every Ming person?" Richardson asked Zhao Yan with a solemn expression, including longing.

"We are not allowed to proselytize in the Ming Dynasty, this is the rule set by our saints, even I can't change it, and I don't want to change this policy, we Ming people don't need the gospel of the Lord." Zhao Yan refused Richardson's request for a missionary without any room for manoeuvre.

"Oh! It's a shame. Richardson shook his head, but his expression didn't show much regret. The same was true of the four missionaries on the side.

Strictly speaking, they are all pseudo-missionaries, and the primary purpose of coming to the East is not to preach, but to make a fortune, and whether they can proselytize or not is not a big problem for them.

There are also missionaries with firm beliefs, after all, there are so many missionaries in the Ming Dynasty, and those businessmen are not only digging these five, but those missionaries with firm beliefs all rejected Zhao Yan's temptation of money and did not stay in Zhaojiabao to serve him.

"Nothing to regret, think about it! As long as you can contribute, you can buy a large estate in Europe, marry a beautiful noble lady, and bring your gospel to those nuns, and live a happier life than the nobles. Zhao Yan said with a smile.

At the mention of the nuns, the missionaries' expressions became very obscene.

This hemispheric experiment ended with a perfect end.

Atmospheric pressure was confirmed to be real, and the force was great. At the same time, Zhao Yan also impressed the members of the Academy of Science and Technology.

In the words of later people: in the eighth year of Chongzhen, the hemispheric experiment of Zhaojiabao successfully confirmed the existence of atmospheric pressure, which became a milestone in the opening of modern science......

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