Du Jin picked it up and looked at it, and said in amazement: "Such a big crystal stone, where did you get it?" ”

Xu Zizhen said: "You don't care where it came from, I'll ask you if you can make this thing into a film." ”

The thing he took out was the large crystal that Bu Fen and others had collected from the Western Regions, and Xu Zizhen had hidden him for a long time, just waiting to ask Du Jin to see if he could use the knife.

Du Jin frowned and looked at it for a long time, nodded and said, "Okay, okay, how thin are you going to be?" ”

Xu Zizhen didn't have an idea himself, so he thought for a moment and compared the thickness with his thumb and index finger: "It's almost so thin, can it work?" ”

"What color do you want to carve?"

"You don't need any flowers, just thin and polish, the lighter the better."

Du Jin raised his head suspiciously: "Just polishing or not carving?" What's the use? Isn't it a waste that such a large crystal stone is rare? ”

Xu Zizhen smiled mysteriously: "You'll know when you grind it out." ”

Du Jin didn't ask any more questions, and put the crystal away: "Okay, this is a water mill kung fu, and it won't be good in ten days." ”

Xu Zizhen scratched his head: "I'm afraid you still have to work harder, because it's not just so grinding." As he spoke, he took out a charcoal pen again, took a piece of paper and drew a few strokes, "The sides should be thin and the middle should be convex, is it okay?" ”

Du Jin picked up the paper and looked at it: "Okay, that's three or four days longer." ”

Xu Zizhen was happy: "Okay, then I'll wait." ”

Not to mention that there is an old man in the family and a treasure, Xu Zizhen now feels that Du Jin is not only a treasure, it is simply an unfathomable treasure, no matter what is in his hands, there is always a way to solve it, it is really comfortable.

After he finished speaking, he was about to leave, but was stopped by Du Jin, and said angrily: "You kid, this is leaving?" Why don't you go and see your big killer? ”

Xu Zizhen's feet suddenly stopped, and his eyes lit up: "You really did it?" ”

Du Jin said: "How can it be so easy, there are still some small processes that have not been completed, but the general appearance has come out, you can take a look first." ”

Xu Zizhen followed Du Jin to the backyard, this is an empty yard, built a shed with big bamboo, the roof is covered with oilcloth, the whole yard is covered tightly, and even the silky light can't penetrate in, Du Jin asked people to light the lamp, and personally led Xu Zizhen into the inside, there is a big object in the middle of the yard, which is also covered with a large piece of oilcloth.

As soon as Du Jin waved his hand, two guys came over and lifted the oilcloth, revealing an iron lump more than half a person high.

Xu Zizhen's eyes widened in an instant, looking at the thing in front of him without blinking, he trembled and stretched out his hand to gently touch the object, and said excitedly: "You really made this thing?" Is it really made? ”

Du Jin pulled him away, dodged in front of the thing, and asked, "You didn't tell me what this thing is, can you say it now?" The brothers have been working blindly for more than two months. ”

Xu Zizhen looked at the thing a few steps away, his cheeks were a little red from excitement, he swallowed his saliva, and said in a low voice: "The advent of this thing can push our Great Song Dynasty national power for hundreds of years, do you think it's a good thing?" If you really ask for a name, it's called the steam engine. ”

Du Jin couldn't help but be taken aback, the national power has been promoted for hundreds of years, this is not a joke, but from the time Xu Zizhen gave him the drawings to the present, he just immersed himself in manufacturing, but he never knew what it was for, although Xu Zizhen said it very seriously and grandly, but he was still confused, and couldn't help but ask again: "Is it so rare?" But how exactly is it used? ”

Xu Zizhen took a deep breath and suppressed the agitation in his heart, and said with a smile: "It's useless to say it now, there is no chance to test, you will know later." Speaking of this, he paused, and his expression became solemn and abnormal, "This thing can only be known to us brothers, and it must not be passed on." ”

When Du Jin heard him say so seriously, he became more and more curious.

Xu Zizhen circled around this iron guy a few more times, and looked at it carefully, this said it was a steam engine, but it was actually a simple version, and he had long had the idea of developing science and technology in his heart, but it was a pity that he didn't read much, and he didn't learn physics well when he was in school, so he could only remember the general principle.

At that time, not long after he first came to Ying Tianfu, he asked Bao'er and Qiaoyi to find such a good place, and bought this garden at a large price, in order to use it for Du Jin and others to research and develop his rare things, and this steam engine was the first big thing.

At the moment, this steam engine has not been completed, he took a closer look, the general fuselage is no problem, the forging technology of Xixia can definitely make this iron shell not burst under high pressure, but it is a pity that the valve cannot be made this year, and even the steel balls in the roller have to be polished by hand, so it takes too long to build a working steam engine.

Xu Zizhen looked and touched the ground several times, and the more he looked, the more proud he became, he suddenly raised his head and shouted: "Luo Ji! ”

A black shadow flashed from the roof, jumped in front of Xu Zizhen, and knelt on one knee.

"Master."

Du Jin and the others were taken aback by this unexpected visitor, they were all good, but no one was aware of Luo Ji's existence.

Xu Zizhen pointed to the steam engine and said: "Send a few brothers to guard this garden, don't let anyone approach, this thing must be kept secret, understand?" ”

"Yes!" Rogie replied simply and directly, then rose to his feet and disappeared into the roof.

Du Jin was dumbfounded, and it took a long time to come back to his senses: "Where did you kid come from such a master?" ”

Xu Zizhen said unhappily: "Look at what you said, what is a pit, this is a ...... given to me by someone Well, it's actually a dowry. ”

Du Jin and his men couldn't help laughing, Wen Baer smiled and said: "When my mother-in-law got married, she was considered beautiful, but she also married some gold and silver, young master, which girl did you marry this time, and there is a master?" Could it be the daughter of a general? ”

Xu Zizhen said proudly: "That's right, it's really ......" just stopped when he said this, and slapped him, "Oops, forget about this." ”

He made a package ticket with Yongye, and in response to Tianfu, he would go to the Gao family to propose marriage, but when he turned around, he forgot about it, and saw that Gao Pujun didn't remember it, Yongye said that he would come to Tianfu again in the near future, and the old man would have his own experience when he was mad.

Thinking of this, his mind turned quickly again, marrying Gao Pujun is not so easy, this girl can be very demanding, referred to as Shi's mother, if you don't make the wedding different, I'm afraid that in the future, there will be small shoes for yourself to wear.

He touched his chin and pondered for a moment, then slapped his thigh and exclaimed, "There it is!" ”

Everyone was taken aback by him: "What's there?" ”

Xu Zizhen's face was suddenly full of smirk, and he looked at Du Jin and said, "Uncle, can you help me make something again?" ”