The Liu Mansion in the capital is already on the rise, but Liu Jin still has no intention of getting up.

Now the temperature in the capital has begun to cool down, and the quilt is too comfortable.

When the most important thing is to fight outside for almost a year, as a monk for a long time, this back to their own home, naturally hungry and thirsty, a night of tossing is not enough, in the morning and pull the two wives for a morning exercise, at this time left and right, that is as long as the beauty does not want the country.

"Goo~Goo~"

I don't know whose stomach screamed uncontrollably.

"Xianggong, it's time to get up, if you don't get up again, you'll be laughed to death."

Xu Wan'er blushed, although it was not once or twice that the three of them slept together, but every time, she was still very shy and hid in the quilt shyly.

"What's the laugh, we're husband and wife, we haven't been together for more than half a year, look at the two of you who are hungry, come, come, come again~"

Liu Jin looked at his wife in his arms and couldn't help but smile.

"Xianggong, pay attention to moderation, the coming day is long, there is an opportunity~"

Xu Wan'er blushed, eager to find a crack in the ground and drill down.

"It's all old husbands and wives, and they're still blushing~"

Liu Jin laughed, and Li Zhen in the other arms also woke up, her hands were moving, and she had always been more enthusiastic and unrestrained.

"Okay, it looks like I didn't feed you, see how I clean you up."

Liu Jin immediately turned over and got on the horse, and soon, the maids waiting outside the room immediately blushed and hurriedly moved away.

At noon, Liu Jin became refreshed.

At the beginning of the year, I went to the South Seas to fight, and it was already winter when I came back, but I was suffocated.

The fourteenth year of Hongzhi is almost over, and next year will be the fifteenth year of Hongji.

"Lao Liu~Lao Liu~"

At this time, a familiar voice came, and Zhu Houzhao walked in a hurry, as if there was something urgent.

"Your Highness~"

Seeing Zhu Houzhao, Liu Jin smiled and saluted.

"You're back, and if you don't come back, I thought you'd die outside."

Zhu Hou looked at Liu Jin and said.

“…… Thanks to His Royal Highness Hongfu, he finally came back alive. ”

Liu Jin was speechless for a moment, what do you mean that if you don't come back, you will die outside, if it weren't for your Lao Tzu insisting that I be invigilated here in Nanyang, I would have come back a long time ago.

"You're back just in time, I've been working on machinery lately, and I happen to have some questions for you."

Zhu Houzhao didn't care what you Liu Jin thought, and pulled Liu Jin to go outside.

"Where are you going?"

looked at Zhu Houzhao, this product has grown now, and it is almost like an adult.

But this character is still the character of a young man, who likes to have fun and delve into something.

Liu Jin estimated that he must have been obsessed with mechanical things again recently.

But this is a good thing, Zhu Houzhao has no interest in being the emperor, he learns other things very quickly, his talent is extraordinary, and his learning ability is very strong.

If he likes machinery, maybe he can also promote the development of the Ming machinery industry, which has a promoting effect on the arrival of industrialization.

"Go to the machine factory~"

Zhu Houzhao pulled Liu Jin in a four-wheeled carriage and walked towards the Beijing Machinery Factory.

Jingcheng Machinery Factory, a place established by Liu Jin to specialize in the study of various machinery, new textile machines, looms are researched from here.

Moreover, the bearings and springs used on the four-wheeled carriage were also studied from the Beijing Machinery Factory.

Liu Jin recruited a lot of craftsmen, gave them high salaries, let them have no worries about food and clothing, and taught them basic mathematical knowledge, mechanical knowledge, and physical knowledge, so that they were responsible for sorting out and researching various machines, summarizing mechanical principles, and systematically inheriting mechanical knowledge.

Even Liu Jin is ready to wait for the time to be ripe before opening a mechanical school to cultivate and inherit mechanical things.

Zhu Houzhao sneaked to Liaodong last year and participated in the war with the Jurchens, which frightened Emperor Hongzhi, and since then, he has been grounded and cannot leave the capital.

Leaving his favorite military camp, Zhu Houzhao's classmates have nowhere to vent their abundant energy, football, mathematics, astronomy and geography, and now they are obsessed with machinery, indulging in machinery all day long, and messing around here in the machinery factory every day, and the angry Hongzhi Emperor is eager to kill him.

Sitting in the carriage, Liu Jin opened the curtain and looked carefully.

The capital has become more prosperous and lively.

There is a lot of traffic, people come and go, and the shops on both sides of the street have changed drastically, and most of them have been replaced with glass windows and glass signs, which make them look even taller.

After leaving the gate of the capital, the outside is more prosperous and lively, the cement roads extend in all directions, and the two sides of the road are newly built high-rise buildings.

In addition to the Ming people, you can often see Koreans and Japanese people on the streets, and you can also see some shops owned by Koreans and Japanese people.

Occasionally, you can see some people coming from Nanyang, and most of these people are looking at the bustling capital in front of them with curious eyes.

The capital has gradually become a prosperous national city, gathering people from all over the world.

Soon, I came to the Beijing Machinery Factory.

"Lao Liu, I'm designing a machine that can buy wheat, you can help me take a look~"

Zhu Houzhao took Liu Jin to his own laboratory, where he made his own laboratory alone, and often did research here.

"Machines for buying wheat?"

"Your Highness, why would you think of studying such a machine?"

When Liu Jin heard this, he immediately hurriedly asked suspiciously.

"A few days ago, I accompanied my father to the field, and when I saw the farmers harvesting wheat, I felt that they were very hard, and if we could study the machinery for harvesting wheat, it would be a great saving of labor."

Zhu Houzhao took Liu Jin to his laboratory, where a strange machine was placed on a vacant lot, similar to the simple harvesting machine of later generations.

However, it seems that the problem of motivation has not been solved.

"Zhu Houzhao is actually still a kind-hearted child~"

After listening to Zhu Houzhao's words, Liu Jin couldn't help but think in his heart.

Zhu Houzhao is actually the same as Emperor Hongzhi, he is kind-hearted, but he is more playful, and he became an emperor at a rebellious age, and was bound by a group of old guys, coupled with Liu Jin's misguided guidance, so he did some ridiculous things.

But in general, he is still a kinder person.

Now he is just a child, and seeing the hard work of the peasants, he would even think of developing a machine for harvesting wheat and rice, which shows his kindness.

"Lao Liu, look at it, how is my machine?"

Zhu Houzhao patted the machine he had researched and said proudly.

He has a strong ability to learn and is quite talented, plus he is a prince, he has his own money, and he likes to toss with his hands, so don't look at the fact that he has not been learning for a long time, but he can already design and manufacture machines in a decent way.

Liu Jin looked carefully around the machine.

Similar to some harvesting machines of later generations, the wheat was cut mainly by a sharp blade and two walking wheels, which were turned by hand.

"Nice, nice~"

"This machine is very well designed!"

Liu Jin couldn't help but admire, this Zhu Houzhao is really a talent.

"Haha, it's not bad~"

When Zhu Houzhao heard this, he immediately grinned, and Liu Jin's affirmation made him very happy.

"Very good, have you tried it in the field?"

Liu Jin nodded solemnly and said.

"Yes, but it's not easy to use~"

"The machine is heavier, and you have to push the machine while operating, which not only does not save effort, but is more tiring."

Zhu Houzhao nodded slightly, and then said the shortcomings of this machine.

In fact, in the final analysis, it is still a problem that Liu Jin can see at a glance, it lacks a core, that is, power.

The reason why the machine is labor-saving is not only the exquisite design, but also the power of the machine, which can save power, which lacks power, and if it is driven by manpower, it is naturally not practical.

"I've thought about using cows and horses to pull it, but this wheat harvest, wheat is in front, and the cutting knives are also in front, and if the cow and horse go forward, it is easy to hurt the cow and horse."

"But if you don't need cows and horses, it's more laborious to just push the machine."

Zhu Houzhao thought about it and added.

"Your machine is missing a steam engine~"

Looking at the machine in front of him, Liu Jin touched his chin and said.

"Steam engine?"

Zhu Houzhao said with a slight stunned.

"Yes, the steam engine, a machine that uses neatness to propel machines."

"Let's go, I'll take you to have a look, I've asked the people here in the machine factory to study this thing a long time ago, and I don't know how the research is, maybe it can be used on your machine."

Liu Jin nodded and said, and then took Zhu Houzhao to another place in the machinery factory.

As a traverser, how can something as important as the steam engine be forgotten?

With the steam engine, it can be regarded as the real beginning of the liberation of human productivity, and gradually replace human labor with machines.

Now the Ming Dynasty's textile machines, looms and the like, basically still rely on manpower, a few rely on water power, but will limit the development of the textile industry, the real large-scale outbreak, or rely on the steam power to drive.

In addition, the earth is too big, and the territory ruled by the Ming Dynasty is getting bigger and bigger, and if you want to speed up the connection between various places, steamships must also be indispensable.

On land, concrete roads alone are certainly not enough, and trains are also something that will inevitably appear.

And all this is related to the steam engine, only when it appears, the industrial revolution can come, the productive forces can be gradually liberated, and the exchanges between regions will be more convenient and fast.