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Su Hengqi's violent jump was like thunder, and he was about to attack. Qin Xiqing hurriedly said, "Brother Su, don't be angry, Fang Gongzi, he can't speak." Everything is mine and not, and I apologize to you. We're going to take our leave, and we're not going to bother you anymore. ”

After saying that, Qin Xiqing hurriedly stepped forward and took Fang Zi'an's arm and walked out. Fang Zi'an smiled and let Qin Xiqing pull him away. As he walked, he whispered "one, two, three, four"

When the fifth exited, he heard Su Heng shouting behind him, "Stop"

Fang Zi'an smiled and said in a low voice, "The five breaths haven't arrived yet." ”

"You came to humiliate me for no reason, and just left, how can it be reasonable? When I Su Heng is a bully, you must make your words clear today before leaving, otherwise, this matter is not over. Su Heng shouted loudly.

Qin Xiqing turned her head and smiled, "Brother Su"

Su Heng said: "Miss Qin, it's none of your business, I won't accept your apology." ”

Fang Zi'an also said almost at the same time, "Xiqing, needless to say, this matter has nothing to do with you, I scolded him." ”

Qin Xiqing was helpless, frowned and looked at Fang Zi's peace of mind, and said angrily, "You can make trouble, I shouldn't have brought you here." ”

Fang Zi'an didn't hear it, turned around and looked at Su Heng and said, "Am I scolding you wrong, you don't have the ability, but you pretend to have the ability, this is to sell your reputation and deceive the world, shouldn't you scold you, if you really have the ability, prove it to me." If I scold the wrong one, I will kowtow to you and apologize. If you can't prove it, then I'm right. Not only do I want to scold, but after I leave, I will also publicize it and expose the truth that you are incompetent. ”

Su Hengqi's lungs exploded, he had never seen such a shameless person. Although he is only a craftsman, he has never been humiliated in such a person in his life.

"Very well, I'll prove it to you. When the time comes, I want you to kowtow to me in front of many people in the bazaar to make amends. Do you dare," Su Heng said angrily.

Fang Zi'an laughed and said, "If you don't dare, I'm wrong, I'll admit it." I'm afraid you don't have the ability. How do you prove it"

Su Heng strode into the west wing, and soon after he took out a wooden box, took out an object from it and held it in his hand. Fang Zi'an and the others really saw that it was actually a black and slap-sized toad-like thing.

"What kind of toy is this for your son, hahaha." Fang Zi'an laughed.

"Look, you man who has never seen the world." Su Heng shouted coldly, reached out and twisted the iron rod on the side of the iron toad a few times, and then threw the iron toad on the ground. The iron toad paused on the ground, then jumped up and jumped half a foot away. Then another jump, another jump, seven or eight times in a row, jumped from the house to the back door before stopping there.

"Ah, that's alive, how can you jump," Qin Xiqing exclaimed.

Su Heng sneered: "What is life, all skills are iron." That kid, isn't that a clever skill?"

Fang Zi was also surprised in his heart. This kind of thing is naturally nothing in the later generations, it is nothing more than a clockwork, connected to the machine shaft to drive the limbs of the moving frog to jump. However, this is in the Great Song Dynasty, this thing not only involves the toughness of the steel technology used in the clockwork, but also the technology of the linkage of the shaft gear, and the way the toad jumps is realized through the irregular crankshaft, which is not simple.

"It's a bit of a doorway, but it's nothing. Let me guess if there is a thin coil of steel with elasticity in it, and as soon as you let go of it after tightening, it will automatically revert, and after driving the chainring, the iron toad will bounce backwards. Isn't it?"

Su Heng was a little surprised, the person in front of him actually understood the principle, which was really impressive. You must know that this thing seems simple, but there are very few people who really understand its principle, and they are actually seen through by this guy at a glance.

"You also have some good skills, this is really nothing, then you look at this."

Su Heng stretched out his hand and took out a foot-long object from the wooden box, Qin Xiqing saw it clearly and exclaimed in surprise and hid behind Fang Zi'an. Fang Zi'an also saw what it was, and said with a smile, "Don't be afraid, it's just a fake centipede." ”

It was indeed a centipede, with a lifelike body and legs made of thin iron rods. Centipedes claim to have 100 legs, but there are not so many centipedes, only a dozen pairs of iron legs that are often arched. Each pair of legs is mounted on a section of the body and then joined together to form a whole.

"See." Su Heng rotated the knob placed on the top of the centipede's head seven or eight times, and the spring inside made a clicking sound, and then Su Heng put the iron centipede on the ground and sent his hand away. The iron centipede clicked and moved, shook its head and tail, its long whiskers trembled, and ten pairs of long legs crawled on the ground, and the connected bodies actually turned one by one, crawling on the ground several times.

Fang Zi'an looked at all this in amazement, and his heart was full of admiration. This iron centipede was obviously also driven by a machine spring, but it was ten or even a hundred times more complicated than the iron toad. The toad only needs to bounce backwards, and the iron centipede needs to crawl and move on ten pairs of legs. This is not only the power of the springs, but also the internal machinery to work together, and the most difficult thing to achieve is that everything is coordinated. If the long feet of the centipede want to take a step, it needs to use the means of crankshaft traction, and if you look closely, you can see that each long foot is connected by an iron wire as thin as a hair at the joint. Every time the centipede takes a step, it relies on this filament to pull the force, and uses the internal irregular crankshaft to deflect it and fall forward, which is actually a very clever means of mechanical manufacturing.

Fang Zi'an knew that he had found the right person. This Su Heng is by no means a person who sells fame and reputation, he is a real master, a real skilled craftsman. Of course, I didn't really think he was incapable before, it was just a radical method. But Su Heng showed these two things, which was enough to shock Fang Zi'an.

"How can this be regarded as being able to enter your eyes" Su Heng looked at Fang Zi'an's stunned appearance and sneered proudly.

Fang Zi'an stepped forward quickly, bowed his hand and said, "Master Su, you are reckless below, you have eyes and don't know the masters, and you are convinced." I admit defeat, you say where there are many people, I will kowtow to you and apologize. Admitting defeat and admitting defeat, I will never break my word. ”

Qin Xiqing frowned and looked at Fang Zi Anxin and said, I told you that this Su Heng has a mastery of art, you don't believe it. It's a shame. If you really kowtow to make amends, it will really become a big joke.

Su Heng sneered and waved his hand and said, "That's it, how can I have anything to do with you." Young people, don't be so arbitrary and arrogant in life, and don't hurt others. There are many things in this world that you have not experienced, how can you attack others. Tell you to learn to be good, this is to meet me. If others don't give up, you're afraid you'll have to kneel and kowtow on Zhonghe Street. ”

Fang Zi'an nodded and said, "What Master Su said is extremely true, Fang Zi'an has been taught. Thank you Master Su for your magnanimity. However, I dare to ask, although Master Su makes this iron toad and iron centipede is delicate and exquisite, what is the practical value of making a hoe and digging the soil, and cutting rice with a sickle, these two things are of any use except for Ling Gongzi to play with toys."

Su Heng frowned and said, "This is the skill and means, this is the ingenuity and ability to make objects, you know what is practical, I haven't thought about it for the time being." ”

Fang Zi'an said, "I don't mean anything else, I mean, Master Su has such means, how can he not use it to make some practical things for the benefit of the public, wouldn't it be a pity." ”

Su Heng frowned and glared at Fang Zi'an silently, how could he not have such regrets. But this kind of mechanism is very difficult to put into practice. What can be done with the power of a steel clockwork, the force is not long-lasting, and it is not strong, and many things cannot be done. This is actually where he struggles. But there really wasn't a way for him to solve the matter.

"Master Su, I came to visit today to bring something from me that allows Master Su to use his exquisite craft, and it can be practical. I have ideas, you Master Su have the skills and ability to make, and the cooperation between you and me will be earth-shattering. That's why I'm here today. Those previous words were just radical words, and they were by no means disrespectful to the master. Fang Zi'an said.

Su Heng frowned and was about to refuse, this guy was still going around and around to help him do things, Su Heng refused before, how could he agree at this moment.

"Don't refuse, let me show you it, and then you decide if you want to help me. If you still refuse to help me, I will take your leave at once, and I will not bother you again. What do you think" Fang Zi'an spoke, and without waiting for Su Heng to speak, he put the package he was carrying on the table and opened it, took out a large stack of drawings full of structural parts, and unfolded it in front of Su Heng.

Although Su Heng didn't want to see it, as a craftsman's curiosity, he had a desire to see what it was when he saw the strange shape, so he reached out and flipped through the shape. Fang Zi'an whispered to the side to introduce the principle and structure of the work and the prospect of use, the more Su Heng looked at it, the more surprised he became, and the more he listened, the more he felt that this thing was exquisite, and his expression had changed greatly.

"You're saying that the power of steam can propel this thing to work, and instead of manpower and the power of mules and horses, the power of steam is so great," Su Heng finally asked this related question.

Fang Zi was overjoyed, he knew that Su Heng was tempted. Just like a gluttony sees food, a pervert sees a beautiful woman, an alcoholic sees a fine wine, and a gambler sees dice. A craftsman who is skilled in manufacturing and is good at ingenuity and obscenity will inevitably be tempted when he sees an intricately designed object. That's for sure. Fang Zi knew in his heart that soon Su Heng would agree to help him make this thing, and he only needed to dispel his doubts.

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