"Sir, wait a moment. I can make this little thing in an hour."
In front of Yinzi, the old blacksmith also let go of all his reserve.
He invited Li Ke into the room with a smile, and he got busy sweating profusely.
The scale of this blacksmith shop is considered to be among the largest in Chang'an City.
Li Ke walked around curiously and found a lot of things that interested him.
"Lao Huo, you haven't got any weapons yet, right?"
Li Ke picked up a long sword that looked pretty good and threw it into Huo Qubing's hands.
"See if it works. If it can be used, I will buy it and give it to you."
Huo Qubing did not refuse. After all, Li Ke even gave him a precious object like the Mingguang Armor.
All the items in this blacksmith shop are not as valuable as that suit of armor.
If you refuse again, it will seem a bit pretentious.
Huo Qubing shook his head while casually holding a sword flower on his arm.
"Your Majesty... Young Master, this sword is too light. I'm not used to it."
Before coming, Li Ke specifically warned him.
In Chang'an City, don't call him Your Highness.
Otherwise, those common people would have to kneel down when they see him, which would not be troublesome enough.
"It's okay. If you're not satisfied, choose again. It's quite a big place here. You should be able to find a weapon that suits you."
Li Ke said undeniably.
Weapons are equivalent to a general's second life, more important than his wife.
It’s unrealistic to think that you can pick one right away.
Your casual attitude towards weapons means you are irresponsible for your own life.
Love at first sight only happens in fairy tales.
The two wandered around the blacksmith shop for a while, but unfortunately, Huo Qubing never showed his attitude towards a certain weapon.
By the end of the debate, Huo Qubing himself felt a little embarrassed.
"Sir, how about I use the army's standard weapons? No matter what, they are much better than what we had at that time."
"No, weapons are nothing to play with."
Li Ke shook his head.
"This one doesn't have it, so let's go to the next one. I don't believe that Chang'an City, as big as it is, can't find you a handy weapon."
"Sir, your things are packed."
The old blacksmith's voice came.
Li Ke heard this and walked over quickly.
On the cooling table, four huge iron rings are emitting heat.
After cooling was completed, Li Ke picked them up and looked at them carefully.
There is still a certain gap between what was produced on the assembly lines of later generations.
But this can't be blamed on the master blacksmith. Li Ke himself is a dabbler.
As a liberal arts student majoring in history, he was considered good if he could draw the drawings from memory.
The more professional ones have to be left to those who study physics or lathe.
At the very least, what the master made achieved the effect he wanted, and he didn't cut corners on the materials.
This is worthy of recognition.
"The workmanship is good, I'm very satisfied."
Li Ke took out the silver ingot and placed it in front of the blacksmith.
However, the old master did not accept the money. Instead, he hesitated for a long time and asked.
"Sir, may I ask what this thing is used for?"
"Do you have a carriage here?"
Seeing his sincere attitude, Li Ke didn't hide it.
It's not an important technology in the first place, even if he doesn't say it.
It won't take long for someone to figure it out.
The wisdom of ancient Chinese people can never be underestimated.
"Carriage? Yes, yes."
The old master nodded quickly and invited Li Ke to the backyard.
"Do you see these four wheels?"
Li Ke squatted down and signaled to the blacksmith.
"Let's call the stick connecting the two wheels a central axis. We separate the central axis and the wheels, and use this thing called a bearing in my hand to connect them..."
"In this way, no matter how rough the road is, the people in the carriage will not feel the bumps?"
The old master suddenly became excited.
He is an expert in iron tools and can judge the function of an item without seeing the actual object.
"Smart, not only that, the biggest function of bearings is to reduce friction, friction...forget it, you don't understand even if I tell you."
"To put it simply, with the same horsepower, the speed of a carriage with bearings installed can be more than half higher than that without bearings."
"Of course, when running on dirt roads, there are still bumps. This problem can be solved by installing shock absorbers next to the wheels."
Li Ke's long speech shocked the old blacksmith.
"Sir... what is a shock absorber?"
"...Do you have springs?"
Li Ke was a little helpless. It was really difficult to communicate with these people using modern knowledge.
This man is still knowledgeable. If it were anyone else, he probably wouldn't understand what he was talking about.
"spring?"
The expression on the old blacksmith's face became even more confused.
Seeing his expression, Li Ke also became a little unconfident.
He clearly remembered that the ancient Greeks had studied this kind of thing more than a thousand years ago.
Even if we are a little slower, we will not be a thousand years behind others.
"How should I put it... It's the kind that can pop up when pressed..."
Li Ke kept gesticulating, and the old blacksmith watched for a long time, and finally realized something.
"So this is what you're talking about. I'm going to get it for you right now."
After a while, the old blacksmith came back with a bunch of crooked things in his hands.
Li Ke glanced twice and nodded.
He just said, how could his ancestors lose to those barbarians in the West in terms of craftsmanship.
Although those in the hands of the old blacksmith can only be regarded as prototypes compared to later generations.
But for shock absorption, it is completely sufficient.
"This thing? Can it reduce vibration?"
The old blacksmith stared at his hands in disbelief.
"It definitely won't work now. These small things that can withstand a hundred pounds will be completely deformed. You have to make them bigger."
Li Ke couldn't laugh or cry.
"Anyway, let's make a spring that can bear three hundred kilograms first."
Shock absorption is too troublesome to explain.
The ancients only knew that the carriage would bump when encountering potholes, but they did not know where the bumps came from.
This involves inertia, action force and reaction force, which will not be clear for a while.
So Li Ke simply threw him an indicator and asked him to do it.
In fact, when it comes to shock absorption, hydraulic shock absorbers are the best choice.
But there was no such condition, so Li Ke could only think about it in his heart.
After listening to Li Ke's request, the old blacksmith nodded.
"Is there anything else? Just leave without me."
Li Ke waved his hand.
"That... Young Master..."
The old blacksmith was silent for a moment, and finally made up his mind.
"Can I pay to buy your drawings and sell them here?"
"After working on it for a long time, it turns out you want to authorize it."
Li Ke smiled.
"Exclusive authorization, no buyout, just a share. For every carriage sold, I want 50% of the profit, how about it?"
