Seeing the joy of the two famous feng shui masters in history holding this "Chemistry", Zhang Nan knew that this matter had not run away, so he left the Taishi Bureau and went to the Ministry of Industry.

In fact, Zhang Nan is reluctant to put this Tiangong Department into the Ministry of Industry, after all, there are many people, and what can this Tiangong Department do in the future, even Zhang Nan does not have a quasi-spectrum in his heart. If the things inside are used by someone with a heart, then Zhang Nan's sin will be great.

So Zhang Nan decided to ask Wei Tianwu to see if there were any secrets in this Ministry of Industry, so that he could carry out scientific research quietly.

When he came to the Ministry of Industry, Zhang Nan found Wei Tianwu and said straight to the point: "Master Wei, do we have any secrets in this Ministry of Industry?" ”

When Wei Tianwu heard this, he smiled and said: "Master Zhang said that he was laughing, look at this Ministry of Industry, it is such a big place, where can there be any secrets?" After speaking, Wei Tianwu pointed to the location of the office of the Ministry of Industry.

"Eh, don't stick to this place, it's just the place where the craftsmen in our Ministry of Industry make things, and if there is a secret place, it's okay." Zhang Nan still didn't give up and continued to ask.

"It's true that there isn't, but Master Zhang, why are you asking this?" Wei Tianwu is a little strange, where to work is not to work, why does it have to be a secret place? It's not about doing something unseemly.

"Well, this, it's still inconvenient now, when my Tiangong Department is established, I'll take Master Wei to the Tiangong Department to take a look, and Lord Wei will know." Zhang Nan scratched his head and said, no matter how much you talk to Wei Tianwu now, it will be in vain, useless, many things still have to be seen to be believed.

"Then I'll have to wait for it, but this secret place, the Ministry of Industry really doesn't have it, why don't you ask the emperor?" Wei Tianwu Dao.

"Okay, Master Wei go and get busy with you, I'm thinking of a way." Zhang Nan said as he knocked on his brain. Indeed, it is very difficult to do something that everyone does not want to know about in this place that everyone knows.

Zhang Nan had no choice but to ask for help from the big man in this land, that is, Comrade Li Er, although Zhang Nan didn't want to see Li Er, but there was no way, this matter, not to see.

"What do you say? Do you need a secret place to carry out the work of the Heavenly Works? Li Er was half-lying on the warm bed at this time and talking to the eldest grandson queen, and when he heard Zhang Nan ask to see him, Li Er didn't want to see him, but the eldest grandson queen was too virtuous, so Li Er put state affairs first, and as a last resort, Li Er announced Zhang Nan in, but as soon as he came in, Zhang Nan gave Li Er a problem.

"That's right, it's better where everyone doesn't know, that's the best." Zhang Nan said.

"What do you want to put in the Ministry of Labor this day, is it so important?" Li Er asked with a frown.

"Does the emperor think that thunder is important?"

"Important."

"Does the kamikaze matter then?"

"Important."

"Does the hot air balloon matter?"

"Of course it's important."

"That minister's heavenly ministry has things that are 10,000 times more important than these three things." Zhang Nan said with a smile.

"Oh? What is it? When Li Er saw Zhang Nan's appearance, he immediately asked with interest.

"Technology, talent." Zhang Nan said.

"What is this technology?" Empress Changsun asked, although these two couples asked why Zhang Nan didn't want to answer any of the 100,000 questions, but there was no way, who made Comrade Li Er the emperor, and he didn't want to answer.

"Technology, it's Gewu, Empress Changsun must know what Gewu is." Zhang Nan said.

Of course, the eldest grandson queen knows what Gewu is, Gewu, which means to explore the truth of things and correct people's behavior, and "Ge" here has the meaning of "exhaustive research". "The Book of Rites: University": "Enlightenment is in the object, and the object is then known." Gewu is an important issue in Confucian epistemological methodology, and the cornerstone of the "Eight Eyes" in the Three Principles and Eight Eyes.

"Is this inquiry into the truth of things going to a secret place?" Empress Eldest Sun had a strange expression.

"Ordinary things are not used, but if it is an important weapon of the country, then does the queen think that this needs to be carried out in a secret place?" Zhang Nan asked rhetorically.

"This ...... I agree with what you said, but I really don't have anything good here to keep secret. Li Er agreed with Zhang Nan's statement, but he couldn't give Zhang Nan a good place, because the most secret place Li Er used it himself, and it was impossible to draw a piece of land for Zhang Nan to engage in scientific research.

"Then the emperor will give the minister 10,000 Turkic prisoners, and the minister will open a piece of land in the Qinling Mountains outside Chang'an City, let them work in the mountains to reform, and finally the minister will put the Ministry of Heavenly Work inside." Zhang Nan said seriously.

Seeing Zhang Nan's serious nonsense, Li Er was like beating Zhang Nan hard.

"Where do you need 10,000 Turkic captives, this is the Ministry of Gaitian Gong? You just want to build a palace in the mountain. Li Er glared at Zhang Nan, and Li Er naturally disagreed with Zhang Nan's opening of his mouth to ask for 10,000 Turkic prisoners.

"Then the emperor, you should find a place for the minister, otherwise you will give the minister 10,000 Turkic captives. Your Majesty, look at it, anyway, the Ministry of Heavenly Works was ordered to be built, and the Emperor Bang Chen estimated that you also sent it out, if in the end those people came but there was no place to work, I'm afraid the emperor You can't hang it on your face. After Zhang Nan finished speaking, he stood aside and stopped talking, as if you didn't give me land today, I wouldn't leave.

"10,000 Turkic captives don't have it, at most you will give you a thousand, it's up to the sky, love it or not, don't pull it down." Li waved second-hand, indicating that this matter was not negotiable.

"You really can't give more?" Zhang Nan asked.

"No, do you think the Turkic captives are ants? Everywhere? You are still the director of the Datang Labor Reform Bureau, how much do you have left under your hands now that you don't have any points in your heart? Li Er asked.

Zhang Nan's heart naturally has a number, although there are many of these 100,000 Turkic captives, but at least 80,000 of them have been sent to the border by Li Er to repair the city wall, Li Er is not a good person, and he doesn't want these 100,000 Turkic captives to eat the grain of the Tang Dynasty in vain, and most of the remaining 20,000 are also sent to the periphery of Chang'an City to build roads and open up land for the people of Chang'an City, and there are less than 10,000 Turkic prisoners left in the current Labor Reform Bureau.

Li Er didn't want Zhang Nan to take a break, this group of Turkic captives was all drained, otherwise there would be some disaster in the state capital around Chang'an City, and this group of Turkic captives would have to rebuild after the disaster.

"A thousand is a thousand, the minister moved this Tiangong Department to Qinling, the emperor has covered it, and the minister invites you to come and see." Zhang Nan had a cheap and obedient expression on his face, and Li Er, who saw it, was angry, but this matter had already been decided by himself, and he couldn't change it if he wanted to.