In the open space in front of the Yin-Yang Courtyard, Qin Yu was holding a broom and cleaning unhurriedly.

I heard that the teacher inside was teaching the students yin and yang gossip, the nine palaces, the river Tuluo book or something. The teacher on the podium was teaching finger pinching and calculation, and the fingertips of the three thumbs represented the number of operations, three hundred and eighty-one, two forty-six, and seven ninety-five. Each number represents different directions, different things, and then predicts the good luck and evil through the finger pinching algorithm.

The teaching content of the Yin-Yang Academy can be said to be all of the mystical metaphysical culture of China.

He neither fully believed nor completely disbelieved in these ancient metaphysical cultures.

However, it is obviously not possible to use these things to determine the security of the country. To strengthen the country and rejuvenate the country, we must rely on natural science.

But we can't completely deny metaphysics, thinking that it's just dross and useless.

Therefore, in Qin Yu's concept, if you want to make the civilization of the Ming Dynasty rich and strong, you have to mainly develop mathematics, physics and chemistry. As for the ancient metaphysical culture, as an auxiliary, secondary development.

What if it turns out in the future that metaphysics is really the end of science?

At that time, at least the Ming Dynasty did not completely abandon it, and it was still developing obscenely there. It's just that it's not the main development, so let the enthusiasts study it.

It is better for the general public to study science.

Therefore, he planned to suggest in the future that Emperor Zhu should study the palace in Jixia and add the Academy of Natural Sciences.

The Academy of Sciences is the main body, and the other schools are auxiliary departments.

"This person's state is so ethereal and detached!" At this time, Liu Bowen, the dean of the Yin-Yang Academy, happened to pass by, and after seeing Qin Yu, he couldn't help but be shocked:

"He stood there sweeping the floor, but he didn't feel like a scavenger at all."

"Rather, it was as if the heavens and the earth were in his bosom, and he could be on top of the whole world."

"This kind of temperament is not available to ordinary people."

"Who is he, and why haven't I been before? There is no student like him in the Yin-Yang Academy, and if there were, I'm afraid I would have found out a long time ago. Liu Bowen asked a student next to him.

"Isn't it just a sweeper?" The student next to him replied casually, "I heard that it was recommended by Senior Brother Lin Shuo, but he didn't get the opportunity to be assessed, and it is estimated that he is a distant relative of Lin Shuo." ”

"A person like him who wants to rely on his relationship to enter the Jixia School Palace should not have any real skills." Another student said, "He is proud enough to sweep the floor in the Jixia School Palace." ”

At this moment, a fallen leaf fell at Liu Bowen's feet, and Liu Bowen picked it up and taught a lesson in divination. Then he shook his head, but he didn't get any results.

He didn't take the matter to heart, and turned away.

……

"Your Majesty, the envoys of the Heavenly Side, have been staying in Honglu Temple for ten days, and I ask to see Your Majesty as soon as possible." In the imperial study, Yang Xian, the prime minister of Zhongshu Province, entered the door and said.

"We just have time tomorrow, so let's summon them tomorrow in the Wenhua Palace." Zhu Yuanzhang said.

Zhu Yuanzhang had already known about the envoys of the Heavenly Kingdom coming to Beijing, and as soon as the envoys arrived in Yingtian, Zhongshu Province reported the matter to the emperor, which can be said to be very timely.

In history, Hu Weiyong was seized by Zhu Yuanzhang because the envoys of the Zhancheng State came to Yingtianfu, and Hu Weiyong did not report it in time, let alone deal with this matter in time.

As a result, the envoys of the Champa State wandered in Yingtianfu for more than a month.

Great loss of national body.

Foreign envoys must have asked the emperor to meet in person, but he did not report to the emperor, which shows how powerful the prime minister was at that time. There are many major events, and the prime minister of Zhongshu Province is the first person to know.

Zhu Yuanzhang was furious when he found out, so he took the opportunity to take down Hu Weiyong and let him be punished for several crimes.

I'm afraid that only Hu Weiyong, a person who likes crazy skills, dares to hide the affairs of foreign envoys coming to Beijing from the emperor. Yang Xian definitely didn't dare to do this.

Although he knew the news early, Zhu Yuanzhang had no intention of meeting the envoys of heaven.

Because when he heard that this group of people had come to Ying Tianfu, they made a lot of nonsense, and their words were very rude, giving people a feeling of being invincible. So he didn't know how to be polite, so he hung them for more than ten days.

When the envoy of your small country arrives in the Ming Dynasty, do you dare to nostril to the sky?

"Yes." Yang Xian said, "The minister immediately went to inform the Ministry of Rites and asked them to prepare the etiquette for the reception. Presumably, the arrogance of the heavenly envoys this time will not be so arrogant. ”

"Yang Xian, which country in the sky does this envoy group come from?" Zhu Yuanzhang asked. Celestial Formula refers to the Arab region of the time, not to a specific dynasty.

The region is at war all year round, there are many small countries, and regime changes are frequent. Because of the underdevelopment of transportation and information at that time, many people in the Ming Dynasty felt that Tianfang was a country.

"Listen to them, it seems to be from the country of Merga." Yang Xianyu played.

"Hmm." Zhu Yuanzhang nodded noncommittally, the backward and small country in that area of Tianfang, and it was very far away from Daming, he didn't pay attention to it at all.

In this area of Tianfang, in his impression, there is only one thing that he remembers very clearly.

It was a man named Maha, who had traveled far and wide, and who was fluent in the language. Ma Ha only has a son named Ma He, and now he is a little eunuch in the Yanwang Mansion.

Because Maha was only proficient in the heavenly language, he followed the expedition team of the Ming Dynasty and went on an ocean expedition.

And the direction of the fleet's expedition is the sky.

It is definitely more convenient and faster to take the sea route than the land route, and it is estimated that it will take several years to travel from the land to the heavens.

And by sea, it will be a few months at most.

"Could it be that the arrival of the Heavenly Envoy is related to the Ming Dynasty's expedition fleet?" Zhu Yuanzhang secretly thought in his heart, "There is no love for no reason in the world, and there is no hate for no reason. ”

"After the envoys came to the Ming Dynasty, they made a lot of nonsense and were rude, and they must have been dissatisfied with what the Ming Dynasty's ocean-going fleet did after they arrived there."

"Yang Xian, how far is Persia from heaven?" Zhu Yuanzhang asked again.

The peasant uprisings in the feudal era basically relied on religion, using the omnipotent god to give the soldiers the courage to kill the enemy, and using the name of the god to collect food and wages from the people, so that the desperate people could see a glimmer of light in the darkness.

The Yellow Turban Uprising, the Yellow Nest Uprising, the Chen Sheng and Wu Guang Uprisings...... All of them were used. Zhu Yuanzhang used Mingjiao, and Mingjiao originated in Persia, so he knew this place in Persia.

He took advantage of Mingjiao, but never went to Persia.

The Central Plains has transformed Mingjiao into its own.

I vaguely remember that Persia was probably in the area of the heavens.

"Back to the emperor, please forgive the ministers for their short-sightedness, the ministers don't know the direction of heaven and Persia." Yang Xian said embarrassedly, "If the emperor wants to know, you can look at the world map drawn by Mr." ”

"Looked." Zhu Yuanzhang said, "There is only one lang marked on it, but there is a Persian Gulf next to it." ”

The next day, the Mandarin Palace.

A group of envoys appeared on the main hall, the crowd dressed in white robes and turbans.