The group came to the newly established Firearms Bureau in Huangzhuang outside the city, right next to the gunpowder workshop.

It’s a pity that the steel plant has not yet started production. Although Li Chengqian really doesn’t want to use copper to make cannons, qualified steel has not yet been produced, so he can only use it for the time being.

We have to build at least one or two guns for testing, from scratch, and sum up the experience!

As officials in charge of supervising the manufacture of cannons, Cheng Yaojin and Yuchi Gong now spend all day in the Firearms Bureau and gunpowder workshop.

Both of them had witnessed modern warfare and knew the role of artillery in the Tang Dynasty.

Cheng Yaojin even fantasized about creating a machine gun in the Tang Dynasty to realize his dream of endless rattling.

At this time, Li Shimin brought people here, and it was their time to show off.

The two had already cast three qualified bronze cannons yesterday and were waiting for Li Shimin and Li Chengqian to test them.

"Your Majesty, you are finally here. Come and see how powerful the cannon built by me, Old Cheng, is!!"

Cheng Yaojin patted a cannon next to him. The diameter of the muzzle was about 50 centimeters, and the diameter of the inner wall was 20 centimeters.

The thickness of the cannon base is even more exaggerated. The whole looks like a long pumpkin, and its length reaches three and a half meters.

Heavy, rough and ugly!

Li Shimin took a closer look and said, "This is too crude. It is totally incomparable to the Japanese cannon."

Li Chengqian also took a closer look and said, "It's OK. It's good enough that we can build it with our technology. But it's a little too big. I'm afraid it's not suitable for marching. We can only use it for city defense."

Cheng Yaojin said helplessly: "I made a small one before, but it exploded when it was fired. The craftsmen studied it for a long time before formulating the current specifications. It is already the smallest size we can make."

Li Chengqian sighed: "How is the steel mill doing?"

Cheng Yaojin replied: "It's still under construction. It will probably take at least three months."

"It's too slow. We must use the existing iron smelting workshops of the Ministry of Industry to see if we can transform them based on the existing technology. This may speed up the process." Li Chengqian looked at Li Shimin.

Li Shimin did not hesitate: "I will issue an edict later to grant you the power of Shangshu Ling, and you can inquire and command the affairs of the six ministries."

Everyone was shocked!!

The power of the Shangshu Ling, isn’t that the power of the prime minister?

The prince and the prime minister have unlimited power!

Awesome!

"Let's try out the power of these three cannons first." Li Shimin issued an order.

"Your Majesty, please step back a little. I will ask someone to test the cannon." Cheng Yaojin said.

Soon, three large iron balls were brought out. The craftsmen first filled them with gunpowder, tamped them, put in projectiles, and inserted fuses.

After doing this, everyone stayed away.

If this situation goes wrong, the two most powerful people in the Tang Dynasty will die here.

The craftsman held up the torch and looked at Cheng Yaojin who was hiding far away.

Cheng Yaojin swung his right hand heavily: "Fire!!"

Sizzling...

Boom boom boom! !

The three huge cannons roared, shaking the earth! !

The entire imperial farm was shocked.

Li Shimin and Li Chengqian also raised their eyebrows. The noise was not much smaller than that of the Japanese infantry artillery.

Liu Rengui was so shocked that he almost fell to the ground.

Looking again, three cannons were aimed at a mound...

Boom boom boom! !

Suddenly, dust rose up and thick smoke billowed!

After the smoke and dust cleared, it was discovered that a layer of the mound had been shaved off!

Horror!

Liu Rengui stared blankly. If this so-called cannon could be loaded onto a ship, wouldn't it be possible to kill the enemy thousands of meters away in a naval battle?

But Li Shimin and Li Chengqian frowned.

Li Chengqian said: "It's too weak. It can be used to attack cities, but it won't do much damage to the army. We still need to use shrapnel bombs."

Li Shimin nodded: "Yes, compared with the devil's small infantry gun, this is shit!"

Cheng Yaojin spread his hands and said, "There's nothing we can do. It's because our Tang Dynasty is technologically backward!"

Yuchi Gong also said: "Too backward..."

Liu Rengui looked at the emperor and his two ministers pretending to be cool, and his heart was filled with excitement.

This is still backward!!

Don’t be like this!

Makes myself look like a bumpkin.

And what about the Japanese infantry gun? What kind of magical weapon is it?

Li Chengqian looked at him: "How do you feel?"

Liu Rengui bowed and said, "This is a powerful siege weapon. If the navy warships are equipped with this cannon, they can kill the enemy thousands of meters away. It is really a magical weapon!"

Li Chengqian nodded: "Then Sir Liu can use this kind of cannon as a basis to study new tactics for naval warfare. Do you have any ideas?"

"Don't worry, Your Highness. I already have an idea in mind."

"Very good. I will build you a hundred of these cannons within a month. As for how many cannons to install on a ship, you can research it yourself!"

One hundred doors!!

Liu Rengui was shocked and quickly bowed and said, "I understand."

Leaving Liu Rengui at the Firearms Bureau to continue familiarizing himself with the cannon, Li Shimin and Li Chengqian headed to the steel plant construction site not far away.

The base of a blast furnace with a diameter of more than five meters has begun to take shape, and workers are still working hard to consolidate the base and lay refractory materials.

Some other supporting measures are also being built in full swing.

Cheng Yaojin said it would take three months, but Li Chengqian thought it would take at least half a year to complete.

"It's really too slow. When will this blast furnace be completed?" Li Shimin said unhappily.

One hundred cannons required a huge amount of copper, which was a huge expense that even the emperor could not afford.

"What are the chances of success in improving the existing iron smelting technology into a blast furnace?"

"100 percent. The technology is all on-site, but it must be kept confidential. I don't know which people in the Ministry of Industry are trustworthy."

Li Shimin nodded and said, "You are right. Large-scale steelmaking must be mastered by ourselves and must not be learned by the aristocratic families."

"Leave this matter to me. I will select a group of available people for you."

After inspecting the steel plant site, the father and son went to the rice experimental field.

The hybrid rice has grown to half a meter tall. Not sure if it’s because the genes of the seeds have changed after the time travel, but Li Chengqian always feels that this batch of rice is different from what he remembered.

I quickly went to look at the other seeds I had brought back.

The corn stalks also seemed thicker than he remembered.

The tomato seeds that I thought would be laughed at before have sprouted and grown, and are growing well.

The same was true for other crops. Perhaps his impression was wrong, or perhaps it was really as he thought, the genes of the seeds had changed after the time travel! !

Li Shimin was very satisfied with these crops that he had never seen before. They were growing well!

At this time he suddenly said: "When is the next time I travel through time?"

Li Chengqian smiled and said, "What's the matter? Can't wait?"

"The key is that I have no cigarettes. It's uncomfortable!"

Li Chengqian sighed: "Yeah, no more cigarettes..."

The two of them hurried to check on the growth of the tobacco.

The result is very frustrating. Although the growth is good, it will take at least three months to harvest.

And I don’t know which era I’ll go to next time I travel through time. It’s so hard!

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