On the second day, Wu Yanzhi slept until he woke up naturally, and when he opened his eyes, he found that the sunlight had shone in through the gap in the curtains.

But it's sunny again! It shouldn't be too early.

Ten o'clock? Or eleven o'clock? At this time, there was no clock, and I didn't know the time.

This, he thought, is inconvenient! It seems that we will have to find a way to make clocks in the future.

But when you think about it, the principle of this clock is simple, it is nothing more than a ring of twisted springs that drive several sets of gears. However, the spring also needs good steel to make it, and the precision parts such as gears inside also need steel or brass.

Therefore, materials science is very important, and it cannot be done by relying solely on the skilled craftsmen of Shang Fangjian.

When he thought of brass, he couldn't help but think that he still had dozens of catties of zinc that he hadn't processed! If this thing is not processed into a "stone", if the zinc is smelted on a large scale in the future, this thing will be at the same price as lead and tin, and it will already be thirty or fifty yuan.

The smell of mosquitoes in the house was very strong, and he couldn't help frowning, and quickly opened the curtains and opened the window.

This window is not closed at night, there are a lot of mosquitoes, second, they are afraid of snakes, centipedes and other poisonous insects crawling in, and third, they are afraid of rain.

Push open the window and a breath of fresh air hits your face!

It's so cool!

But I saw a large bunch of tender green plantains hanging low, slowly growing. Ay! I'm afraid I won't be able to eat this plantain! It's still months before it matures!

Suddenly, through the gap of the banana leaves, he saw a figure.

Hey? Isn't that the Nine Heavens Dao Chief? How did he wander behind this house?

"Nine Heavens Dao Chief! What are you doing here? He asked.

When the Nine Heavens Dao Master heard this, he hurriedly said: "Seeing that Wu Lang is not awake, come here to wander around, I will come over immediately!" ”

The Nine Heavens Dao Leader was very happy to see that Wu Yanzhi had woken up, and hurriedly came around the front door.

Wu Yanzhi took some salt from the jar and put it in his mouth, then picked up the cup and drank a large sip of cold water and rinsed his mouth.

Then he opened the door and welcomed the Nine Heavens Dao Elder into the door.

When the road arrived in front of the door, his face was excited: "Oops! I heard that Xue Gong sent someone to inform him that Wu Lang had been made the county prince and became a winter official Langzhong, and the poor Dao specially came to Gongxi! ”

With that, he handed the bag in his hand to Wu Yanzhi.

"Dao Chief! Where does this start? I'm thanking the Taoist for taking it in, it's too late! He shirked everything.

Helplessly, the Jiuxiao Daoist was very resolute, and said: "Without Wu Lang, where can the contemptible people seal the county and give the land?" Where can I be awarded a loose official from the five ranks? This little gift, Wu Lang has to accept it no matter what! ”

"Dao Leader is too polite!" Wu Yanzhi had to accept it and put it aside. I feel that there should be some gold and silver in it, but I don't know how much.

However, receiving this long gift is not considered a bribe, but it is not a big deal.

"By the way, Wu Lang, didn't you say last time that there were still dozens of catties of zinc? I thought, why don't I go find some copper, how about refining it for Wu Lang? It's time to try out the techniques that Takerou taught me! He said suddenly.

"This ...... That's good! However, pure copper is afraid that it is not good, the general copper has been added with lead and tin, but it is not very good to process the stone, that is, it is processed, and the color is not very pure! ”

"This is not to worry about Wu Lang, it is also very convenient for Poor Dao to know a few people who are quarrying and refining copper in Wangwu Mountain!"

"Then it's a long trouble." He said.

This also requires more than 100 catties of copper, which will be exchanged for money, about 25 pounds. So he said, "I still have to ...... the money to buy copper."

"What is this copper? Wu Lang taught me the method of metallurgy so generously, I haven't paid the tuition yet! He was a little embarrassed.

At the beginning, I didn't want to tell Wu Yanzhi the secret of the refining stone, but who knows, but people already have extremely high technology.

He had been uneasy about it. Wu Yanzhi dragged out more than sixty catties of zinc and handed it to him. He then went out to find a handyman and took him back.

He himself said: "Wu Lang is now a high-ranking official, how can this be done without a horse." It's better to accompany Wu Lang to Beishi to buy horses today! ”

Wu Yan looked at it, but this hike was too difficult. So he said, "Okay! After I changed my clothes, I went to Beishi with the Taoist chief! ”

"Hmmm! Since Wu Lang agreed, Poor Dao also went back to prepare for it, and said goodbye first! He was very happy to see that Wu Yanzhi agreed.

I really didn't see the wrong person that day, if I didn't take in Wu Yanzhi, how could I have such a prominent position in Taoism today?

In the past, when Emperor Taizong was there, he rewarded the Taoist family generously, and many Taoist priests wore three-grade purple clothes and were also crowned the princes.

However, after the current Holy Lord is in power, he is closer to Buddhism, and this family has not been knighted and disbanded for a long time!

Wu Yanzhi changed his clothes and remembered to buy a horse, but thought: This horse is just like a car, and the price gap is very large. Ordinary horses can be bought for a dozen dollars.

A slightly better horse will definitely cost thirty or fifty times, and as for the best good horse and a thousand miles, I don't know how much it will cost.

His more than ten catties of rocks are more than forty pounds, and when he meets a good horse, I am afraid it is not enough. And it's not easy to take, because half of the stone that day has been exchanged for copper coins.

Yesterday, I won a hundred taels of silver, so I simply brought them all. On second thought, it seems that it is still not enough, the horse is like a car, the price is too cheap, even if the quality is good, it cannot be driven.

So I opened the money bag given by the Nine Heavens Dao Chief, and when I saw it, I couldn't help but be surprised, it was all gold!

Weigh it again, about four catties, and get more than sixty taels of gold!

Take it or not? He hesitated! Forget it, this thing was just given by someone just now, and it doesn't look good when you take it out.

So he took the hundred taels of silver and the few catties that were left, and went out.

……

Noon, North City.

When the two arrived, the North Market had just opened.

The Tang Dynasty was very strict with the market management of the two capitals, and the regulations were to open the market with 300 drums at noon and close the market with 300 cymbals at 7 minutes before sunset. That is, each market is only open for four or five hours a day.

Wu Yanzhi looked around, but saw that the North City was full of people. The stalls are neatly arranged in rows, vertical and horizontal. The vendors sell in their stalls, almost exactly like the markets of later generations, but each row is much longer.

"Wu Lang, you must rarely come to this place. There are 210 rows of stalls in this market, and everything that is the same is placed in one row. For each line, a line head should be designated by the city ordinance to manage each line. "Jiuxiao Dao said.

Wu Yanyi listened, it seems that the title of this "industry" comes from here.

But there are only two hundred and ten lines here, which is not a small gap from those three hundred and sixty lines! I don't know if the West Market of Chang'an is as big as 360 lines. Of course, 360 rows may not be the number of the market this week.

He also knew from the memory of this Wu Yanzhi that this market was managed by special officials, which was equivalent to the industrial and commercial bureau of later generations.

At this time, merchants do not have to pay transaction tax. Since there is no company, there is no personal income tax. It's just that you have to pay some household taxes and so on like ordinary people.

In addition to the low social status, in fact, the tax burden paid by merchants at that time was much lower than that of ordinary farmers.

Even many officials were opposed to taxing merchants, saying that it would cause prices to rise, which would be passed on to the peasants.

Of course, in ancient times, righteousness was valued over profit, and merchants happened to be people who valued profit, so it was reasonable that they were not liked by people.

"Wu Lang, the two of us will find a place to lunch first!"

"It's good!"

Then, the two paced to the door of a small wine shop. But I saw about twenty tables, and half of them were already sitting. It's all a few side dishes, and a bowl of rice wine in front of one person.

Wu Yanzhi said: "Dao Chief, I think you can eat casually here, and it is also good to drink two bowls of rice wine for one person!" ”

He thinks that these so-called "fly restaurants" actually taste very good.

The Jiuxiao Daoist felt that this place was too shabby, and wanted to propose a change of place, but seeing that Wu Yanzhi had already walked in, he followed into the store.