Achievement system: I am cultivating immortals in the world of martial arts

After returning home, Han Yun did not go directly to the Zhenbei Army camp, but in the house, he took out some pieces of wood and iron, took out a rubber tree, took an ax and a chisel, and started to work ping-pong-pong.

Qi Xiaoyu opened his eyes curiously, seeing that Han Yun was making wood and making iron, not knowing what he was going to do.

Qi Xiaoyu is a good boy who asks when he doesn't understand, so he directly asked Han Yun what he was doing.

Han Yun smiled slightly and said,

"Don't worry, you'll know after a while, this is a gift for you and Xiao Yuxin."

"Gift?"

Hearing this, Qi Xiaoyu was even happier, she didn't even ask about Tangmen's affairs, and just squatted aside to watch Han Yun's work wholeheartedly.

Under the precise control of master craftsman Han Yun, handlebars, seats, chains, frames, wheels, screws, nuts, purlins, bearings, wheels and other objects were quickly created by him.

After all the parts are manufactured, the next step is assembly.

In the evening, two bicycles, one big and one small, appeared in the yard.

The handlebars, seats and tires are all made of rubber by Han Yun.

"Wow, what is this? It looks so delicate, can it pull goods?"

Qi Xiaoyu happily ran to the side of the big bicycle, touched and looked at it from the left, it was very novel.

"This is called a bicycle. It's not for pulling goods. It's for you to ride forward. It's a means of transportation."

Han Yun smiled.

In fact, this thing is only for Qi Xiaoyu incidentally, mainly for Xiao Yuxin, the little girl must like this kind of thing that can be ridden and run.

As for a big girl like Qi Xiaoyu, she is much less attractive.

At this time, Xiao Yuxin came back with her schoolbag on her back. The child just came back from school. Looking at her happy face, she knew that she must have learned a lot of knowledge and read a lot of books.

"Big brother!"

When Xiao Yuxin saw Han Yun, she immediately ran over excitedly.

The little guy threw himself into Han Yun's arms, acted like a baby, and turned his attention to the bicycle next to him.

"Yeah? What is it?"

The little guy looked at Han Yun with his big cute eyes.

"This is a gift for you, let's go outside, and I will teach you how to ride it."

"Good~~"

It was the first time Xiao Yuxin saw this kind of thing, it was small and exquisite, and she loved it very much.

Two girls, one big and one small, pushed two bicycles, one big and one small, and walked towards the large open space outside the mansion.

When he came to the door, Han Yun asked a servant to go down the mountain to call Zhao Long over, and asked him to bring a team of soldiers to pull the cart over.

Then, Han Yun took off his cloak, picked up Qi Xiaoyu's bicycle, and said to Xiao Yuxin,

"Come on, get on your bike."

"it is good."

Xiao Yuxin followed Han Yun's example and sat on the seat with one foot propped on the ground.

"Then, step on this pedal with your feet and walk forward."

As soon as Han Yun stepped on the pedal, the bicycle walked forward.

Qi Xiaoyu watched from the side, his eyes glowed, and he exclaimed wonder.

Xiao Yuxin followed his example and walked forward, before taking two steps, she fell to the ground with a plop.

Han Yun laughed, handed the bicycle to Qi Xiaoyu, and asked them to study together.

The two girls are smart, and they learned it quickly. The two of them rode their bicycles in the open space like having fun.

Han Yun smiled slightly, watching this scene, he also felt happy from the bottom of his heart.

What is the purpose of a man's hard work? Isn't it just to make his wife and children happy?

Uh... a wife who has never been married is also a wife, and a younger sister is also a child.

As the sun gradually set, Han Yun, who was enjoying the family happiness, saw Zhao Long and a group of cavalry riding Molang on the mountain road.

Zhao Long rode Mo Lang and walked over without any haste. He knew that it was definitely not an urgent matter for Zhenbeihou to call him.

If it was urgent, Zhenbeihou would fly over to find him.

So there is no rush to go.

After arriving at this large open space, Zhao Long and the group of soldiers saw the figures of one big and one young riding bicycles having fun.

This is a novelty that they have never seen before. They don't understand why a frame with two wheels can carry people forward without falling down.

The more they looked at it, the more novel it became, and they couldn't help but slow down their pace.

They didn't notice Han Yun standing at the door until they were very close to Zhenbeihou's Mansion.

Immediately speed up and come over.

Good guy, Master Hou greeted them personally at the door, how could they neglect.

After quickly coming to Han Yun, Zhao Long and others turned over and got off the wolf, clapping their hands and saying,

"See you Lord Hou."

"Ah."

Zhao Long couldn't help turning his eyes to the figure over there, and asked curiously,

"Master Hou, did you get that... strange thing? Where did you get it?"

"I made it myself."

Han Yun smiled.

Zhao Long's eyes brightened upon hearing this, and said,

"It turned out to be Lord Hou's technology. Then this thing can be mass-produced. If it is popularized in the army, it can be used by soldiers. It can greatly speed up and save energy when marching.

And I think this thing should not weigh too much, and it can be carried over difficult roads, or it can be used to pull goods.

If it is to quickly support the battlefield, it can also play a miraculous effect. "

Zhao Long is an army commander, and he is extremely sensitive to things that can help strengthen the army. He can discover many wonderful uses just by looking at a bicycle.

However, Han Yun shook his head and said,

"Forget it, it's not as fast as cavalry, it can't go fast when encountering bad roads, it can't pull goods like a horse-drawn cart, and it can't carry a load. A soldier has a lot of weapons on him, so it's hard to run.

The most important thing is that it cannot be mass-produced. Manufacturing those parts requires high-precision machine tools and the cooperation of various mature industrial chains, which we do not have.

And those machine tools and factories require our country to have a complete industrial system. Before the advent of the industrial revolution, these were all delusions.

When we have such an industry, we will not be so rare about such bicycles. At that time, steam engines and motorcycles can be manufactured, so what kind of bicycles will we need?

Moreover, it is very fragile and easy to break. It is easy to break when riding bumps on the road or being hit by enemies. "

Zhao Long was confused by a lot of unfamiliar terms in Han Yun's mouth, and he didn't understand at all, but he also understood what Han Yun meant, that is, this thing cannot be mass-produced.

Things that cannot be mass-produced, no matter how good they are, are just toys.

In fact, Han Yun also thought about developing industry, but the development of industry is inseparable from steam engines. The current Dachuan is still a feudal society, too primitive, and there is a long, long way to go to get there.

It doesn't mean that if something is created, it can be created in a big step.

If you take a big step, it is easy to pull the egg.