Zhang Nan didn't want to pretend to be mysterious, so when he heard Bingzhi ask, Zhang Nan also said generously: "I don't know how much you know about the thunder." ”

After hearing this, Bing Zhi also said honestly: "If you go back to your lordship, I can now say that I know more about the Sky Thunder, because to build this weapon, I have already made a lot of Sky Thunder myself." ”

"Then since you can make a thunderbolt, then you must know that the thunderbolt does not rely solely on gunpowder to kill the enemy, when we make the thunderbolt, we will deliberately add something to the thunder, such as tiles or stones." Zhang Nan said.

As soon as Zhang Nan said this, Bingzhi immediately reacted.

"Lord Zhang, what do you mean is to use this gunpowder as a force, and with the help of this force, launch something else, so as to achieve the purpose of killing the enemy." Bing Zhi said excitedly.

"That's right, that's what it means, you don't have any problems using this steel pipe as a container, it's just not the wrong way, you can try, fill the gunpowder in a small warehouse, and then fill the front of the small warehouse with stones and other things, after igniting the gunpowder, you can launch the stones, you don't underestimate these stones, maybe a stone is nothing, but if there are more stones, and the distance is appropriate, it can even break people." Zhang Nan said.

The effective range of the assault rifle is 100 meters, and within 100 meters, the lethality can still be guaranteed, of course, Zhang Nan did not expect the Ministry of Heavenly Engineering to come up with a firearm with relatively accurate accuracy at one time, as for the semi-automatic weapon, Zhang Nan didn't even dare to think about it.

However, even if only the assault rifle is used, the assault rifle can be regarded as a sharp weapon in hand-to-hand combat with the infantry after the cavalry charge, or when defending the city. Of course, there are many shortcomings in the assault rifle.

It's like the stones inside are just put in, so they can only be used to shoot flat or hit the sky, and there is no way to lower your head or run to hit.

"Great, I'm going to make a working steel pipe now." After the soldier finished speaking, he was ready to leave and hurry up to experiment.

"Can you do it now? Is the forging technology of the Tiangong Department so mature? Zhang Nan asked strangely.

Zhang Nan felt quite strange, although now with the shaft furnace ironmaking method, the iron output and steel output have increased greatly, but this does not mean that forging steel is a simple matter.

You must know that this steel pipe is hammered out by craftsmen with a hammer, and it is not simple.

Hearing Zhang Nan's question, Mo Zu and Bing Zhi both looked at Zhang Nan with the eyes of aliens, and Mo Zu then said: "Qingquan, you really haven't been to the Heavenly Ministry for a long time, there are a lot of things in the Heavenly Ministry of Heaven, of course, this is second to none, it is the golden stone machine of our Heavenly Ministry of Heaven." ”

"The Golden Stone Machine? What's that? Zhang Nan looked strange.

What has the Ministry of Heavenly Work been making up in these times?

"It's just being able to draw the desired shape on the steel or iron, and I found that the circles and circles can be combined, so there is no need to re-forge, just connect these steel pipes together." Bingzhi said with a smile.

When Zhang Nan heard this, he was also shocked in his heart, if the gold and stone machine that Bing Zhi said in his mouth can really achieve this effect, then the gold and stone machine in his mouth is not a lathe? If the Ministry of Heaven's Work could build even the most primitive machine tools, then the other branches of machine tools in the future, such as boring machines, milling machines, grinding machines and drilling machines, would not be too far away.

Although automation cannot be realized, as long as it can be achieved by manpower, Zhang Nan believes that there is no problem.

With machine tools, it means that Datang has begun to enter the industrial age, which is good news.

"Can you show me your golden stone machine?" Zhang Nan said.

"Of course you can, the golden stone machine is in the workshop, do you want to see it now?" Bing Zhi asked.

Zhang Nan nodded after hearing this.

"Okay, then the old man also follow Qingquan you to go, this gold and stone machine is the hard work of our entire Tiangong Department, when the steam engine used in the big ship was built, the gold and stone machine did not reduce its effort, with it, our waste of strength is greatly reduced." Mozu Road.

"Huh? When the steam engine was built, did this gold and stone machine already come out? Zhang Nan asked with a shocked face, it turned out that Datang was already in the semi-industrial era, which was greatly unexpected by him.

Zhang Nan didn't expect that he only provided a model of a steam engine, but let Datang enter the industrial age with half a foot. I have to say that the creativity and learning ability of the ancients are also high, which is smacking.

"That's natural, it can be said that there are many problems when the first steam engine of the Ministry of Heavenly Engineering was built, but after the gold and stone machine, it can be said that many problems can be solved." Mozu Road.

"Then I'm going to have to go and see it." After Zhang Nan finished speaking, the three of them headed towards the workshop.

entered the workshop, and after Zhang Nan visited the golden and stone machine that Mozu and Bingzhi talked about, Zhang Nan also admired the scientists of the Ministry of Heavenly Engineering more and more.

Although the appearance of this gold and stone machine is really not very good, and it can even be said to be ugly, but the effect of the gold and stone machine is surprisingly good, although Zhang Nan does not know anything about these machine tools.

But Zhang Nan can still see whether the things made are good or bad.

The left end is used to turn things, and there are several blades of different sizes on it, and the right side is used to cut, and a large blade made of what material is not seen hanging there.

Zhang Nan probably looked at the working principle, only to find that these guys from the Tiangong Department actually used the principle of linkage, and there was a foot pedal under the whole bed, by stepping on the foot pedal, rotating the crankshaft and driving the flywheel, and then linking to the spindle, so that the spindle began to rotate.

"How about it, Qingquan, this golden stone machine is not bad, we are still working on new machines recently, different functions, although it can't meet all the requirements, but there are still some that can be achieved." Mo Zu said with a smile.

It can be seen that Mo Zu is still very satisfied with the lathe made by their Tiangong Department.

"Isn't that simple? Now you can cut the thread, replace the large blade on it with a small drill bit, a drill bit of different sizes, or directly make a threaded drill bit, so that it can be used to punch holes, and it can also cut out the thread inside, isn't it more convenient? Zhang Nan said.