Yongji Gudu Wharf, the steam ship slowly docked.

Bai Gongzi jumped down from the boat, landed on the shore with his feet, and then fell hard with a "poof". Living in the laboratory for a long time made his athletic ability begin to deteriorate.

Among the six arts of the gentleman, such as "shooting" and "royal", which require athletic ability, he will definitely not be able to catch up with his father in his life.

But Bai Gongzi didn't care.

He turned his head, looked at his big steam ship, and laughed happily: "It's done, it's done, it's done, it's a successful maiden voyage, hahahaha!" Once again, we used our own strength to imitate the immortal magic weapon. ”

A large crowd of people rushed up and gathered around the steamship to see the strangeness.

Bai Gongzi suddenly saw that Tianzun flew over, and at the same time came the car of the Holy Maiden, and when he arrived at the edge of the dock, Tianzun slowly landed from the sky and stood in front of him.

Li Daoxuan said with a smile: "Recently, I was in Henan, and I worked with your father to help the victims of the disaster in Henan, and you did a good job at home." ”

Tianzun's praise made Bai Gongzi inexplicably excited.

"Remember, any invention has to be written down on paper." Li Daoxuan ordered solemnly: "Don't have any stupid ideas such as passing on children and not passing on daughters, science must be continuously passed on and handed over to future generations, so that future generations can stand on the shoulders of their predecessors and start in order to continue to move forward." ”

Bai Gongzi: "Tianzun, don't worry, I will definitely do this!" ”

The two said a few words, and a few more people jumped off the boat, Song Yingxing, Wang Zheng, and several scientists all came.

It turned out that the first voyage of such a big super invention as a steamship, how could scientists not come to join in the fun. And not only these scientists, but also a large number of graduate students, as well as senior technical engineers led by Li Da and Gao Yiyi, a boatload of people, all of whom are the soul of Gaojia Village.

When Li Daoxuan saw this group of people getting off the boat, he couldn't help laughing: "Hey, I said that you group of people, all of them are on a test ship?" If the ship had failed in the test and capsized in the Yellow River, wouldn't the scientific development of Gaojia Village have been directly hit back to the original point? ”

He didn't say that this one was okay, but as soon as he said it, the faces of a group of scientists all changed color: "Huh? Didn't think in that direction at all. It's dangerous, it's dangerous! ”

Li Daoxuan: "In terms of experiments, safety standards should also be formulated, don't mess around." ”

Everyone hastened to answer.

At this time, Song Yingxing suddenly stepped forward and stood in front of Li Daoxuan, with a very confused expression on his face: "Tianzun, in the next research, I have recently fallen into a very embarrassing bottleneck, and I really can't understand it, so I have to ask Tianzun to give me some new technical information." ”

Li Daoxuanqi said: "Oh? Let's hear it. ”

Song Yingxing said: "Here's the thing, Tianzun once gave me a set of guiding ideologies on 'standardization'. ”

Li Daoxuan nodded, he still had an impression of this.

Gaojiacun has actually begun to use the concept of "standardization" to produce things, they have unified the unit of length "meter", and they have begun to divide the work, and different blacksmiths have to make parts exactly the same.

This greatly improved the efficiency of the production of firecrackers in Gaojia Village.

Song Yingxing said: "However, in the application of this standardization, there are also some difficulties, for example, the parts in the same position created by two blacksmiths will have some deviations that are so subtle that they are difficult to detect with a ruler because of the different craftsmanship of the blacksmiths, which eventually leads to 'poor contact', making the firecracker easily damaged." ”

Li Daoxuan nodded: "Hmm!" Go on. ”

Song Yingxing: "I decided to give up the method of 'forging' and instead use the method of 'casting' to make fire parts. ”

Li Daoxuan showed a smile on his face: "Very good idea." ”

Song Yingxing continued: "I created a batch of unified 'molds' of fire gun parts, then melted the molten iron, poured it into the mold, and after cooling, took it out and polished it, and a large number of identical parts were easily made. ”

Li Daoxuan: "Hey, you are talking to me to say that although these parts are exactly the same, the quality is not up to par, right?" ”

Song Yingxing's old face was slightly red: "Tianzun is worthy of being Tianzun, you can know what the problem is when you hear it." This batch of parts made by cooling molten iron in the mold is particularly fragile, and the fire gun used to make it will not work if you fire one or two shots. ”

Li Daoxuan said: "That's inevitable, because the parts made of molten iron condensation have not been forged or squeezed, and its internal structure is very loose and not tight enough, and it will also produce bubbles, so its strength is not enough." ”

Song Yingxing: "This question ...... With the strength of the following, it is really insurmountable, and I don't know how to start. ”

Li Daoxuan smiled: "Well, ...... this"

Drag a long note......

Lee Do-hyun began to drag his feet because he wouldn't either.

But don't be afraid, you can check things that you don't know.

As long as you stabilize the villain first, and at the same time check the information yourself.

Li Daoxuan pretended to say: "To solve this problem, a series of new studies are needed, are you ready?" ”

Song Yingxing's eyes lit up: "I'm not afraid of research, the more research, the better." ”

"That's good, since you have this heart, then wait for me for a while, I'll go back to the Tibetan Scripture Pavilion above and get a book of heaven for you."

Song Yingxing was overjoyed: "Book from heaven!" ”

"Hmm!"

After Li Daoxuan finished speaking, he brushed the ground and cut back to the outside of the box.

When Song Yingxing saw that the statue of Tianzun froze and didn't move, he knew that he had gone to the heavenly realm, and he was so excited that he blew his beard.

And Li Daoxuan, of course, has come to the historical military forum again.

Continue to post anonymously: "Dude, if you travel back to the Ming Dynasty and need to use casting to build a fire gun, how to solve the problem of insufficient strength of cast parts?" ”

Reply 1: "Use vibranium!" ”

Reply 2: "Burying the first floor alive, you said that the strength of the parts is not enough, do you mean the density and porosity?" To solve this, it is necessary to start with the melting furnace technology, and dissolve a good molten iron, which can naturally be condensed into better parts. ”

Li Daoxuan humbly asked for advice: "Then ...... this melting furnace technology"

Reply 3: "Abraham Darby invented the method of making iron from coke, which was a key step in the development of large-scale iron-making furnaces. Come on, I will give you the method of making coke, and the information on the old furnace of Oldbrookdale that made iron from coke, which I got from the library of Harbin Institute of Technology. ”

Reply 4: "Ironmaking is not enough, just building transitional equipment." In the end, we still have to go to the road of steelmaking. I'll give you a copy of the steelmaking technology that Henry Bessemer has researched, but ...... It is impossible for a traverser to come out in the Ming Dynasty, hahaha, at least for dozens of hundreds of years. ”