Taking out a self-made spring, Meng Yu demonstrated it on the spot.
After all, such things as metal wires are also very common here. With Meng Yu's current strength as a swordsman apprentice, making metal wires into springs is really an anti-aircraft gun to kill mosquitoes.
Following Meng Yu's demonstration, Du Feng's eyes lit up little by little. He is not a waste to be the person in charge of the branch. Combined with Meng Yu's previous explanation, he instantly understood the function of this spring, and then secretly With emotion, I didn't expect such a simple thing to be so miraculous, it is truly miraculous.
"If I sell this blueprint to your bank, what price will your bank be willing to pay?" Meng Yu looked at Du Feng confidently after speaking.
Du Feng looked at Meng Yu, then rolled his eyes,
"Since Brother Meng has already given me the blueprints and samples, aren't you afraid that I will turn my face against you?"
Meng Yu smiled,
"First of all, I believe that with the strength of traveling in the same city, I will not do such a thing that damages reputation for such a small matter, and without my assistance, even if you make a spring, you will not be able to achieve the best result. Effect."
"The most important thing is, doesn't Boss Du want to know if I have better technology? If I give it to your competitors, I think this is what Boss Du doesn't want to see."
Meng Yu added.
Du Feng laughed when he heard this,
"Haha, little brother Meng was joking, I was just joking with little brother just now, and we don't bother to do such things with the sign of our city car dealership."
"I don't know what the other technologies of Brother Meng are?" Du Feng, who had seen the spring before, became more interested in the other technologies Meng Yu mentioned.
"Hehe, Boss Du, don't worry. Let's talk about the blueprint of Chunmeng first. How much is Boss Du going to spend on it?"
Meng Yu didn't dare to take out all his things at once. He would do business without profit. He didn't know what Boss Du would do for his own benefit. He could only feel at ease if he had some trump cards in his hands.
"It's easy to talk about, how about a hundred gold coins?" Du Feng said tentatively, how could an old fox like him in the mall not understand what Meng Yu meant.
Meng Yu was a little overjoyed, this Du Feng is really extraordinary, one hundred gold coins, haha, enough for me and Aunt Mei to live for several years, knowledge is indeed money.
"Okay, Boss Du, please pay the gold coins for the spring first." Meng Yu suppressed the ecstasy in his heart, and took out his ID card to signal Du Feng to transfer the money.
However, if he has a little common sense in shopping, he will know that the price is actually negotiable, and it can be increased by at least half.
The identity card can not only be used for identification, it is also equivalent to a bank card, and can directly transfer money between the two cards. This is a veritable one-card. The card and the like are simply weak.
Du Feng was also a little surprised. He didn't expect Meng Yu to be so straightforward. Since that was the case, he also transferred the money readily, and said impatiently,
"I don't know if the other technologies mentioned by Brother Meng can be used?"
This time Meng Yu didn't continue to play tricks, and took out a blueprint from his arms again.
There are two cylinders on this drawing, one with a slightly larger diameter and one with a slightly smaller diameter, and the cylinder with a slightly smaller diameter is inserted into the cylinder with a slightly larger diameter.
"Eh, what is this?" Du Feng realized that he was out of touch with this era, and he couldn't understand it at all.
"This is called a hydraulic shock absorber. The picture next to it is an enlarged picture of the inside of the big cylinder. Because this thing is more complicated, I didn't make a sample, but its effect on reducing the jolt of the carriage is stronger than that of the spring."
"Take this as a gift for you when you buy a spring. If you can make it, you will know how useful it is."
In fact, the main reason is that this thing is relatively complicated, and Meng Yu can't figure it out for a while, so it's better to give it a favor.
"Brother Meng is really generous, but I can't take advantage of Brother Meng. How about this, this blueprint will count fifty gold coins for Brother Meng."
Du Feng said with a bold look, in fact, he was only doing it for Meng Yu's future technology. If he was a kind businessman, I'm afraid he wouldn't be able to get to where he is today.
If someone offers money, Meng Yu will naturally not refuse.
After getting the gold coin, Meng Yu took out a wheel and handed it to Du Feng.
If people on earth were here, they would be able to recognize it at a glance. This is the pulley.
"Is this a carriage wheel?" Du Feng asked with some doubts.
Meng Yu took the pulley, took out a wooden stick and inserted it into the inner ring of the pulley, and motioned Du Feng to try rolling it on the table.
Meng Yu had made full preparations for this incident.
In fact, when Du Feng saw Meng Yu's actions, he roughly understood what was going on, but he still carried out the experiment according to what Meng Yu said.
"The wheel is made round, not only because the center of the wheel is equal to the edge, so that the carriage can move forward in parallel, and more importantly, the circular structure reduces friction. But the circular structure reduces friction force, but the total friction force is not necessarily reduced, because the friction force still exists at the junction of the wheel and the bearing shaft. Then why don't we use the circular structure again to reduce the friction force? This is what I designed The role of the pulley, with it, the speed of the carriage can be at least doubled."
Meng Yu said with some pride, haha, it still feels superior to use the advanced technology of the earth to deceive these aliens.
"Brother Meng is really a man of genius. He actually thought of such a wonderful idea." After experimenting with the function of the pulley, he listened to Meng Yu's explanation and praised in his heart one after another.
To be honest, the shock that Meng Yu gave him today may have caught up with the shock that he had in a year, but he did not show these shocks in the city where he had been in the shopping mall for many years, but calmly talked about business with Meng Yu .
He knew that in this situation, the calmer he was, the more benefits he would get.
Meng Yu took out a drawing, "This is the design drawing of the pulley, how much is Boss Du going to spend on it?"
Du Feng gritted his teeth, "How about a hundred and fifty gold coins?"
Meng Yu was already happy in his heart, so he would not want to, so he took out his ID card directly.
"Well, I only think about these things for the time being, so I'll take my leave first." Meng Yu said and was about to leave.
"Brother Meng, please stop," Du Feng immediately stopped Meng Yu.
Meng Yu's face changed, could it be that the other party wanted to...
"What is Boss Du trying to do?" Meng Yu asked with an ugly face while thinking about the way out.