"Nephew, I suddenly thought of a question, you said you want to use an iron shaft." The uncle came to his senses, and naturally the questions followed.

"Yes, uncle, is there any problem, can the iron shaft be wear-resistant, and can the wooden shaft withstand the weight of such a large waterwheel." Yang Heng was also very puzzled, how could the uncle ask such a question.

"But the iron shaft is very heavy, and it's not wear-resistant as you say, but I've tested it in the carriage." This uncle seems to be a man with a story, otherwise he wouldn't have such a good carpentry skill.

"Ah, wear-resistant, wear-resistant, uncle, didn't you use lubricating oil?" "Lube, what's that?" Uncle was even more puzzled. "Oh......" Yang Heng patted his head, this is Datang, lubricating oil, there is no such thing as Datang, maybe it can be replaced with some edible oil, and it is also possible to use vegetable oil on the low-speed hinge.

"Then, uncle, do we have any grease for cooking?" It's true that Yang Heng doesn't remember, he hasn't used oil to stir-fry and cook during this time, by the way, when he thinks of cooking oil, the iron pot also needs to be made.

"Cooking oil, eldest nephew, what kind of family do you think we are, even the big families in the city don't have many people who can use cooking oil, at most they use fat fat to make some animal oil to keep when eating meat, and only the real family will eat some sesame oil." "Sesame oil, uncle, are you saying that only sesame oil is not possible now." "Yes, the rich eat sesame oil, the poor eat animal oil, and the poor can stutter, and what kind of oil do they eat." Uncle this idea is unwanted, but perhaps, the entire history of China is the uncle of this kind of obedient people can continue, although there are many peasant uprisings in history, but there has never been a success, maybe only in later generations Zhu Hongwu can be regarded as half a grassroots background.

Yang Heng found that there are a lot of things that have been associated with this period of time recently, this is not a good phenomenon, it is better to think about some things specifically, otherwise it is not a good thing to become a pure angry youth, you must know that this world still needs him to save it, it is over, it is over, it is a little too much, saving the world is not something that Yang Heng can pick up with his small shoulders.

At present, the first thing to consider is about edible oil, since the vegetable oil at this time is only sesame oil, then maybe rapeseed oil is a choice, but at this time there is rapeseed, maybe choose soybean oil first, although Yang Heng didn't like soybean oil in his previous life, he liked peanut oil, but at this time peanuts still grow where I don't know what to do, maybe I should go out to make some businessmen's friends, maybe they will surprise Yang Heng.

"Uncle, have you ever heard of soybean oil?" "Soybean oil, nephew, what do you say, I haven't heard of any soybean oil." "Ha Luha, that's good, by the way, uncle, you say, who will make some stone tools, such as grinding discs." Yang Heng's first thought was to press the oil, although he didn't know how to press the soybean oil, but he had seen peanut oil pressing, and he didn't understand other methods of oil extraction, his previous life was not an oil extraction worker.

"Yes, yes, your second uncle will make grinding discs, you must know that those mills in Ludao Village are all made by your second uncle." Sure enough, the people of this era are still versatile, but their brains are a little rigid, and they don't know how to use their skills, but Yang Heng doesn't want to think about it, he is a traverser, in the era of knowledge explosion in his previous life, he has never seen anything, and naturally he has a considerable vision, which can't be said to have strong innovation ability, otherwise he wouldn't have crossed into this era. But those successful people are quite life-sparing, this life is well protected, naturally there will be no crossing, first of all, they will not take their lives seriously, and secondly, they will not appear in some dangerous places, but if they cross in their sleep, then they can't help but say regrets.

There is no spiral pressurization, so I have to use a lever to pressurize, the second uncle made a grinding disc with a diameter of sixty centimeters according to Yang Heng's requirements, and also made another part of the grinding disc that is matched with this grinding disc to press soybean oil, so that a set of pressing tools is made, although this stone tool is not very easy to use, but temporarily Yang Heng can't find too much iron to make this kind of oil pressing tool, this soybean waste is wasted.

If you want to say waste, in fact, you can't waste much, then the soybean cake after pressing the oil can also make tofu, in this poor era, you can eat a mouthful of tofu made of soybean cake is considered a luxury, don't say that this bean cake is not the kind of food with various additives in later generations, which can not even survive bacteria, how to eat it will not eat the dead, nor will it eat an unhealthy, but the taste is a little poor, that is, the later generations know that those foods are poisonous, and not many people say that they will not eat it, if this is poisonous, they will not eat, If you don't eat the poison, then you can only starve to death, or learn to drink the wind and live, but is the wind safe?

"The oil is out, the oil is out, my nephew is so powerful, he can press out the oil with just two stones." The uncles shouted happily on the side, and the father and mother were holding back their joy and didn't say anything, be reserved, be reserved, okay.

"Ah, no, I can't hold it back, my son is the most powerful, but he has been learning for a long time outside the school." The old lady finally couldn't hold it back, this son is brilliant, then her face is naturally very happy, she can't just let others praise it, but not praise herself.

"What are you talking about, sister-in-law, my nephew still knows how to read, then sister-in-law, look, your nephew in our family, do you also let your nephew Heng teach him?" "Yes, yes, sister-in-law, and my children, you can't help but teach." "Alright, alright, don't tell me, you go and consult with your nephew, he has the final say." The old lady decided at this time that she should hand over this home to Yang Heng immediately, let Yang Heng be in charge, watch the construction of this house, as well as the reclamation of wasteland, and even the waterwheel that will be made soon, all of which show that Yang Heng is the master, it seems that he will only enjoy happiness in the future, by the way, and the secret recipe for bathing, and tell the child immediately, not waiting for the child to get married, even if it is to hand over the inheritance in advance.

What Yang Heng didn't know was that he was about to become the head of the family, and he still thought that after his father became an official, he could become a gentleman and play well.