Chapter 240: Accuracy

"Please give me your instructions, Your Highness." Yang He looked expectant.

"You go to Jinling and hold an exhibition with Dong An."

Zhao Xu said to Yang He.

"Exhibition?" Yang He frowned.

Zhao Xu nodded, "Just find a place with dense crowds to display the goods of the palace."

He still attaches great importance to this exhibition.

After all, after a fight with the powerful families, he basically took over the entire market of Dasong.

His goods will be unimpeded in Dasong in the future.

So if this exhibition is well organized, it will bring huge orders to the palace.

The financial problems of Yanzhou will be greatly alleviated.

"I see, I understand." Yang He smiled and said, "Speaking of which, I miss Dong An a little bit, hehe."

Zhao Xu said, "Except for not being in Yanzhou, he is living like a fish in water in Jinling."

In order to facilitate timely information from Jinling, he had already asked Xu Ke to stuff a few members of Yanwei among them.

Before long, Yan Wei's hot pot restaurant will open in Jinling.

At that time, the news exchange between Yanzhou and Jinling will be more frequent.

He can also grasp the dynamics of the capital in time.

Because of this, he still knows exactly what Dong An does in Yanzhou Business.

"Yes, Jinling is so prosperous, this kid will not let himself suffer." Yang He sneered.

Nodding, he said to Yang He: "You will set off in the next two days. By the way, prepare some to send to the palace, and send it before the exhibition starts."

He is creating a false impression for Zhao Heng.

That is, the relationship between him, the prince, and his emperor remains unchanged and has not been affected in any way.

Since everyone is using each other, it is still necessary to do the superficial work.

After all, he cannot leave Dasong yet, and needs the market of Dasong to provide him with a steady stream of silver to develop his fiefdom.

And when his fleet sets sail and occupies a certain overseas market, he will show his claws.

Let Zhao Heng know that he is not someone who can be manipulated at will.

After giving a few more instructions, Zhao Xu asked Yang He to leave.

Yang He turned around to leave, but Zhao Xu suddenly stopped him.

"Wait a minute, in addition to this bottle of fine wine, I plan to give you another commercial product to take to Jinling." Zhao Xu said.

His fiefdom expanded to four counties, and the construction of these four counties naturally required a lot of silver.

Taking advantage of this exhibition, the more commercial products he launched, the better.

And the thing he wanted to give Yang He was not complicated, but it would definitely make money.

"New commercial products!" Yang He heard this, and his eyes suddenly straightened.

Zhao Xu didn't say much, "You just go back and wait, I will give it to you in the next two days."

"Yes, Your Highness." Yang He was happy and went away.

After watching Yang He leave, Zhao Xu rested for a while.

In the afternoon, he went to the Armory.

One was to make new commercial products, and the other was to explain Wang Ying's last time.

When he arrived at the Armory, he directly mentioned the mercury column.

Wang Ying smiled proudly when he heard this, "To be honest with you, Your Highness, I ordered the craftsmen to make this first original ruler?"

"Made it?" Zhao Xu was shocked when he heard this.

Wang Ying nodded, "I saw that Your Highness has been busy lecturing in the school these days, so I dared to try it myself. As Your Highness said, after several attempts, the height of the mercury column is almost the same."

As he spoke, Wang Ying led Zhao Xu to a room.

In the middle of the room, there was a rough thin glass tube.

Most of the volume in the glass tube was occupied by mercury.

This is a rough mercury column.

Then Wang Ying said something to an official.

The official left and came back with a straight bamboo ruler soon.

There were horizontal marks on the bamboo ruler, which were short in millimeters and longer in centimeters. Basically, there was not much difference from the modern ruler.

"It's OK. I underestimated you." Zhao Xu was very pleased.

Ancient craftsmen were actually very smart.

Otherwise, they would not have created riveting, porcelain and other stunning craftsmanship.

In modern times, they just live under a failed system, so they will decline in modern times because they have not climbed the technology tree.

In fact, as long as they are shown the way.

They will create amazing achievements.

The same is true in Dasong.

Wang Ying and the craftsmen of the Arms Department just lack guidance.

Give them a blueprint, and they can also achieve it.

This original ruler is a proof. In the future, he should trust their abilities more.

"Your Highness is too kind. In fact, I have failed many times." Wang Ying smiled.

After all, it is a difficult project to divide this ruler into 760 equal parts.

He selected ten craftsmen to specialize in carving, and they almost went crazy in seven days.

In the end, only one scale was evenly spaced and met his requirements.

"Well, failure is the mother of success. In the future, you should carve this sentence on the wall of the Arms Department so that everyone in the Arms Department will remember it." Zhao Xu said.

Failure is to summarize the experience of success. If you fail more, success will not be far away.

"Your Highness, your words touched my heart." Wang Ying heard this and immediately felt that it touched his heart.

This is what he has always taught Wang Chong.

Zhao Xu smiled and nodded. He admired Wang Ying's quality, wear resistance.

The original ruler was made, and it was time for him to make a vernier caliper.

With this thing, the next step is to let the craftsman grind the drill bit.

After all, the drill bit still has certain requirements for accuracy.

So he asked Wang Ying to get a pen and paper and draw the vernier caliper on the paper.

It is not difficult to make a vernier caliper, but the difficulty lies in the scale.

But now that the original ruler has come out, it is not difficult.

You just need to take the original ruler and compare it on the steel bar.

Wang Ying nodded slightly at the figure on the drawing.

In his opinion, this vernier caliper is a ruler with multiple horizontal blades at one end, and then forged a buckle that can be put on the ruler.

Although it is more complicated, craftsmen can polish it out.

"Just follow this, the vernier caliper is made, and the manufacture of flintlock guns is on the agenda." Zhao Xu said.

Although he wanted to have everything immediately.

But in this poor place, he can only build a fine handicraft industry step by step.

Then develop more complex machinery on this basis.

After saying this, Zhao Xu said: "This time, I have another thing to do with you."

"Together?" Wang Ying was curious.

The King of Yan rarely worked with them to develop things now. He mostly let them explore on their own and only provided guidance.

Zhao Xu nodded, "Go to the glass workshop and get some glass first. This thing is related to glass."

Wang Ying nodded and immediately ordered the officials to get it.

Taking this opportunity, Zhao Xu told Wang Ying what he was going to make and the principle behind it.

The more Wang Ying listened, the more surprised he was, "It can actually be like this?"