After seeing the cannon, Cao Shu was not very satisfied.

He asked Miheng again: "Have you created the mines I asked you to build?"

"Report to the lord, the mine has been really created." Mi Heng said: "It's just that it cannot be confirmed whether it is available."

"How can't it be verified?" Cao Shu asked.

"The mines are buried underground." Mi Heng replied: "If it can be used, someone must go there. But who would be so stupid that he knew he would die that he would try the mine?"

"Take me to see." Cao Shu did not answer, but just gave a command to Miheng.

Mi Heng responded and accompanied Cao Shu to the craftsman's workshop on Penglai Island.

I heard that Cao Shu was coming, and the craftsmen had been waiting there for a long time.

When they saw Cao Shu, they bowed and bowed.

Cao Shu smiled and raised his hands at the craftsmen: "No need to be polite, I'm just looking at how you made thunder."

"Introduce it to the lord." Miheng ordered the craftsman's workshop manager.

The manager is a craftsman who is slightly older than others.

He said to Cao Shuo: "The lord ordered the craftsman workshop to develop cannons and landmines. Although we were in Shouchun City at first, we did not master the essence at all. Although we are still far from mastering the essence, we are not very different from that time. The lord should have seen the cannons..."

When the manager mentioned the cannon, Mi Heng's face looked a little unfavorable: "The cannon is so close, how can I be embarrassed to say it? Don't talk about the useless ones, choose the important ones."

Mi Heng mentioned that the cannon range was too close, and the manager immediately understood that Cao Shu didn't like it.

I wanted to take credit, but I didn't expect that the matter would be done badly. He quickly changed the topic: "The landmines were indeed created, but they couldn't prove them. I don't know how much damage they can be."

"Everyone said it cannot be confirmed, but I find it strange." Cao Shuo asked with a smile: "What did you do to cause thunder?"

Accompanying Cao Shuo into the craftsman workshop, the manager replied: "We used fuses to light thunder, but later we found that gunpowder only needs a tiny of Mars to explode. If we use a spring to thunder body and hit sparks, there is no need for fuses, which can cause mines to explode."

What the manager said really aroused Cao Shu's interest.

Springs are extremely useful. Applying them to landmines can really cause staggered fuse detonation.

"Is there anything that has been made?" Cao Shuo asked.

"Yes!" the manager replied: "I didn't dare to build more, I only created one or two hundred."

"Take me to see!" Cao Shuo waved his hand.

Miheng, the manager and a group of craftsmen from the workshop accompanied Cao Shuo to the warehouse where the mines were stored.

After entering the warehouse, the manager ordered two craftsmen to go in and get the thunder.

After a while, each craftsman took two landmines.

The mines are round and have a very bad shape, but Cao Shu didn't see any fuses in it.

The structure of landmines in later generations is far from that simple.

But it is beyond common sense for the craftsmen in the craftsman workshop to think of using springs to detonate landmines for people of this era.

Taking the landmine from a craftsman, Cao Shu saw that there was indeed a spring snap on it.

He asked Miheng: "Is there any place to prove whether the landmines can be used in Penglai?"

"Yes!" Mi Heng replied: "I can take my lord to see it now."

"Go over and take a look!" Cao Shu called out, "Take all the mines with me."

"It is impossible to prove whether the landmines can be used. What should the lord take them to do?" Mi Heng asked in surprise.

"You can't prove it, can't I do it either?" Cao Shuo didn't say his plan and gently patted Mi Heng's arm: "If it can be used, I will understand after a while!"

Miheng and the craftsmen in the craftsmen were confused.

Since landmines were created, they have been thinking about how to verify whether they are available or not.

After thinking about it, they didn't think of a solution.

Cao Shu had just arrived here and actually said that it could prove whether the landmines were practical or not.

The craftsmen took out all the mines and accompanied Cao Shu to the trial ground in Penglai.

The so-called trial ground is specially developed for craftsmen's workshops.

This is an open space, and the vast sea is connected to the open space.

When he arrived at the trial site, Cao Shu ordered: "Buried all the mines."

When landmines were developed, craftsmen had long been used to burying them in and digging them out.

Not long after, they buried every thunder in a familiar way.

Next, we will verify whether the landmine will detonate. Everyone present looked at Cao Shu.

Cao Shu instructed Deng Zhan: "Take people to get some wooden barrels, fill them with clay, soak the soil with water, fill it up and send it over."

Deng Zhan left in response.

The craftsmen didn't understand what was going on, and Mi Heng suddenly realized: "Does the lord want to use a wooden barrel instead of a man to thunder?"

"Have you ever used this method?" Cao Shuo asked.

"I've used it." Mi Heng replied: "It's just that we used sand and soil at the beginning..."

"The sand and soil are soft, and even if they are filled, they will slide in the barrel." Cao Shuo said: "The sand and soil in the barrel will definitely cause them to go too far. Your method is indeed not very good."

As soon as Cao Shu explained, the craftsmen also realized it.

Everyone said, "The lord is still very wise and lofty. If the lord doesn't come to Penglai, we are afraid that we will not think of this method even if we want to break our heads."

"It's not that you can't imagine it, but you gave up too early." Cao Shu said: "I tried several methods and said it could not be confirmed without achieving the goal. Don't you feel sorry for yourself?"

Walking to the wooden box where the mines were placed, Cao Shu picked up one: "It's much easier to verify whether the mine can be used than to create thunder. You haven't given up on creating thunder. When you reach the last step, you can't retreat. How can you develop new weapons in the future?"

"With cannons and mines, the lord can already sweep the world." Miheng asked: "What new weapons do you need to develop?"

"There are many weapons that can be developed in the world. One day you will find that landmines and cannons are just the prototypes of hot weapons. Real hot weapons still need further research." When saying this, missiles, nuclear weapons and other large-scale destruction appeared in Cao Shu's mind.

The workshop built cannons, and even developed landmines detonated with springs.

With the first step, there will be a second step and a third step in the future.

The development of technology is to move forward rapidly after people find that the world is really strange.

The era he lived in once had a new technological breakthrough every five years. In the changes of the times before that, the development of technology was very slow, and there would not be too many breakthroughs for hundreds or thousands of years.

Unlike everyone who has seen the technology of later generations, although Miheng and the craftsmen are looking forward to it, they all think what Cao Shu said is a bit incredible.

Cannons and mines are extremely destructive. Are there any weapons in the world that are more powerful than them?
Chapter completed!