PS: The third update, if you have a monthly pass, please give a few more, thank you.

"Old Qian, don't blame us."

At the same time, Yu Feibai argued: "This is obviously what is recorded in the textbook, Zu Chongzhi was a person from the Northern and Southern Dynasties, a great mathematician, who calculated pi to the number of decimal places for the first time, and then did not mention anything else. ”

"Yes."

At this time, Wang Guan tried to recall: "It seems that there is something else mentioned, it seems to be a calendar." ”

"Yes, yes, yes......"

Yu Feibai nodded and said: "It seems that he has compiled a calendar, how many years ahead of the world, so in order to commemorate him, he also deliberately named a crater on the far side of the moon after him." ”

"You only remember his achievements in mathematics and the astronomical calendar, but you ignore that he was also an outstanding mechanical expert." Qian Lao shook his head and talked eloquently: "Zu Chongzhi is a native of the Southern Dynasty, and his grandfather Zu Chang was the master craftsman of Liu Song and was in charge of civil engineering, so he can also be called a family scholar. ”

"Civil engineering must involve machinery, which is what the ancients called organs. Zu Chongzhi has been exposed to these things since he was a child, and under the influence of his ears and eyes, he must have developed a strong interest, and then began to study. ”

At this time, Hou Lao added beside him: "As early as his youth, he had a reputation for erudition and talent, and was sent by the imperial court to an academic research institution at that time, which was the so-called Hualin Province to do research work. After that, he was also released to official positions such as engagements and prefectural orders, but he continued to continue his academic research and achieved great success. ”

"Anyway, according to the literature, he built a variety of ingenious machines such as guide cars, thousand-mile boats, and water mills."

While speaking, Hou Lao said with a smile: "It is estimated that this is the reason why some organ masters respect him and set up an ancestral sect. Unfortunately, since this is a secret organization, its activities are very secretive. So there is no record in the history of literature. ”

"If it weren't for the discovery of artifacts similar to bronze medals among the artifacts unearthed from some ancient tombs, I'm afraid we wouldn't know that there is still this organization in the world."

Hou Lao sighed: "But there are too few things, just a scale and half a claw, I don't know why, I don't know what it is, and I don't have any understanding of the rules and regulations of this organization, the purpose and proposition, or anything." ”

"That's not bad." Qian Lao comforted: "At least I know that there is such an organization, and other things can be discovered slowly, as long as you study it patiently." Sooner or later, the truth will come out. ”

"I hope so." Hou Lao said a little sadly: "But at that time, I guess I can't see it." ”

Everyone doesn't know how to take this, if you comfort it directly, wouldn't it be right to acquiesce to Hou Lao's words? If it's not comforting, and it doesn't seem to be appropriate, it's really a bit of a dilemma.

Fortunately, this little thing was not difficult for Yu Feibai, but he smiled and directly changed the topic: "Old Hou." Now that we've cracked the bronze mechanism, does what you said still count? ”

"Count, how don't you count."

Hou Lao immediately smiled and said, "You can pack your luggage now, and you can leave later." ”

"Just wait for your old words."

Timely. Yu Feibai didn't say a word, so he pulled Wang Guan to pack his luggage. Fang Mingsheng was also quite interested in the objects, and at the same time, he couldn't help but ask: "Old Hou, can you also take me?" ”

"Yes." Hou Lao readily agreed. Anyway, a sheep is to drive, a group of sheep is to be released, and I am not afraid of one more.

I don't say much about the rest of the matter. Everyone was ready to go, and after saying goodbye to Qian Lao, they went to the airport in a big way, just in time for the flight that was ready to take off.

"By the way, where are we going?"

After arriving at the airport, Yu Feibai thought of asking Hou Lao about the specific location.

"Go to Xianyang first, and then transfer to Hanzhong." Hou Lao explained: "In fact, Hanzhong has also repaired the airport, but it is only in the testing stage, and it has not yet been officially opened, otherwise it will be able to fly directly over." ”

"It turned out to be Hanzhong, a good place." Yu Feibai nodded, immediately bought a ticket, and boarded the plane through security.

At this time, Hou Lao smiled and asked, "You said that Hanzhong is good, where is it good?" ”

"Uh......"

In an instant, Yu Feibai became dumb, racking his brains and thinking for a long time before he held back a sentence: "The birthplace of the Han family must be excellent." ”

"That's not wrong."

Hou Lao said with a smile: "At the beginning, Liu Bang, the king of the Han Dynasty, did build an altar in Hanzhong to worship Han Xin as a general, repaired the plank road in the Ming Dynasty, secretly crossed Chencang, chased the Central Plains, pacified the three Qins, unified the world, and achieved the Han Dynasty for more than 400 years. Later, Liu Bei established himself as the king of Hanzhong, Zhuge Liang went out of Qishan Mountain, the Northern Expedition to the Central Plains, did his best, and finally returned to the Dingjun Mountain......"

In Hou Lao's narration, the plane set off smoothly and landed at Xianyang Airport about two hours later.

Xianyang ......

After leaving the airport, Wang Guan carefully looked around and found that the whole city was full of modern atmosphere, which was no different from other cities in the country. But I don't know why, but he has a heavy feeling in his heart, maybe because the history here is too thick.

After the Qin Dynasty, five generations ago, in this place, the hinterland of Qinchuan for 800 miles, that was the center of the country, and it was the place where the princes of all dynasties must fight. As long as this place is seized, there will be enough capital to compete for the Central Plains and dominate the world.

Of course, no matter how good a place is, it has been tossed for a thousand years, and it has also been torn and broken. Therefore, after the Song Dynasty, the center of the world began to shift, first south and then north, so that there is the current pattern. But that's the general environment, at least the development of Xianyang is still very good, the tourism industry is very developed, and it should be ranked first in the world.

"Don't be stunned."

At the same time, Yu Feibai beckoned: "Let's go, go and change cars." Why, haven't you been to Xianyang before? ”

"No, it's the first time I've come."

"In this way, after reading the organ, I am not in a hurry to go back when I turn back, first take a turn in Xianyang, and then go to Chang'an. The antique market in Chang'an is very lively, and there are many good things. Yu Feibai said with great interest: "It's rare to come over, if you don't go back to a few treasures, I'm sorry for myself." ”

"That's right." Fang Mingsheng agreed.

"There are a lot of good things, but there are more fakes, you have to be careful, don't be fooled." Hou Lao kindly reminded: "Fakes are rampant here, and they have been flooded. ”

"We know that. It's the same everywhere. Yu Feibai said indifferently: "We have also been tested for a long time, so we will naturally be careful, and it is not so easy to be slaughtered." ”

"This is also true, you are Ling Xi's disciples, you should have some skills from him." Hou Lao smiled, didn't say anything more, led the way directly in front, and soon came to the train station.

bought a ticket and got on the train, and after a turnaround, it was considered to have arrived in Hanzhong. But this time. It was already late, and under the greeting of Hou Lao, everyone came to his house, had a hurried dinner, digested it again, and washed and slept.

After a good night's sleep, the next morning, when everyone got up, they immediately returned to their vigorous state.

"Hou Lao. Now you can take us there. ”

After eating breakfast, Yu Feibai couldn't wait to urge.

"Alright, let's go right away." Hou Lao led everyone out with a smile, and when he got in the car and set off for the research institute. He also reminded seriously: "After entering, there are no rules, but there is one thing that must be remembered, you can't take pictures." Although it's not a secret place either. But it's not advisable to over-advertise ......"

"Understood!"

Everyone nodded, then watched the car turn around and finally came to an office compound. Wang Guan got out of the car and took a look. I found that there was a signboard of the local cultural bureau hanging in front of the door, and the guards were quite strict. Not only were there wooden stakes to stop the car, but there was also a young security guard guarding the sentry box.

Of course, with Hou Lao leading the way, Wang Guan and others are naturally unimpeded.

"Hou Lao ......"

I met a lot of people along the way, but they were obviously not as high as Hou Lao's position, or out of respect, they naturally stopped to greet him. As for Hou Lao, he either smiled or nodded slightly, and he was used to it.

"Here we are."

A few minutes later, Hou Lao led everyone to a corner of the compound, which is a courtyard-style building composed of two or three small buildings.

Anyway, no matter how you look at it, it seems to be a good place for an old man like Hou Lao to retire in his old age, which is completely different from the research institute that everyone imagines is full of hidden weapons, surrounded by dangers, and frightening every step.

"Brother Hou, are you back so soon?"

At the same time, an old man came out of the courtyard and said with a smile: "Since you have taken leave, let's rest for a few more days, and you don't have to rush to work." ”

"I can't stay idle." Hou Lao shook his head and said: "It's time to retire next year, and you can rest as much as you want at that time." ”

"I'll see the hanging."

The man smiled: "It seems that it started five years ago, and you have been submitting applications every year to officially retire." But the higher authorities did not approve it, and tried their best to keep it, and next year will certainly be no exception. Unless you are ruthless and quit the real stack of picks, otherwise, you, the big consultant, will continue to do it. ”

Hearing this, Wang Guan also suddenly realized, and was still wondering why Hou Lao was still working at such an age, it turned out that he was holding the title of consultant.

"Besides, I really won't let you do it, are you willing to do it?"

At the end, the man asked again, but it made Hou Lao laugh and speak, and he couldn't answer. After all, studying mechanics is not only his job, but also his interest. If he is really tired and doesn't plan to continue researching, who can force him to fail? In the final analysis, Hou Lao wanted to continue the research, and the institute retained it, so he naturally agreed.

"Well, I'm right."

The man teased, then looked at Wang Guan and the others, and said a little strangely: "Brother Hou, who are they?" ”

"Ling Xi's juniors are more interested in hidden weapons, so I want to come and have a look." Hou Lao said with a smile, with his identity, he brought a few people over to visit, and it is estimated that no one will stop him.

This was also the case, the man nodded slightly, and did not ask any more questions.

"Brother Pan, then I'll take them in."

At the right time, Hou Lao beckoned and took Wang Guan and the others into the research institute that was different from what they imagined...... (To be continued......)