"Front frame, rear frame, vertical axle ......"

It was late at night, and in the study of Wang Song, the residence of the Xuanfu Division of the Daimyo Mansion, the lights were still on.

Wang Song held a steel ruler with dimensions, and drew carefully on the paper with the memory in his mind.

For thousands of years, there have been no four-wheeled carriages in China, but in the 17th century, there were four-wheeled carriages in the West. Compared with two-wheeled carriages, four-wheeled carriages are more spacious and comfortable, and they are more stable, and the horses are also less labor-saving.

For thousands of years, China has not solved the problem of steering of the four-wheeled carriage, coupled with the lack of horses in the Central Plains, the four-wheeled carriage has high requirements for the road, which has also led to the lack of enthusiasm of the Chinese people for the invention of the four-wheeled carriage. So much so that in later generations, even during the War of Liberation, wheelbarrows were popular, two-wheeled carriages were supplemented, and four-wheeled carriages were never really developed and promoted.

Since the advent of cement, a large number of official roads in the Land of Two Rivers, including around the city of Tokyo, have been repaired or have already been built. This also makes the application of four-wheeled carriages on the agenda.

Compared with two-wheeled carriages, four-wheeled carriages can carry more than 1,000 catties, and they are stable and fast. If it is used in the army on a large scale, it will definitely be of great benefit to solving the problem of supplying grain and grass.

"The best way to solve this problem is to install a differential on the front wheel!"

The differential is something that was only invented in modern times, and the Western method of solving the differential is very simple.

The first two wheels of the four-wheeled carriage are mounted on one frame, the rear two wheels are mounted on the other frame, and the rear frame frame is connected by a vertical axle on the front frame, which is actually a combination of two two-wheeled vehicles. The problem with the differential was thus solved.

Easier said than done. Wang Song had to draw the drawings in detail and easy to understand, so that the craftsmen could understand the mystery more clearly and let the four-wheeled carriage be made as soon as possible.

Speaking of which, the purpose of his current desire to build a four-wheeled carriage was originally just to use it in the army and solve the problem of difficult transportation of baggage. Relying solely on a wheelbarrow or a two-wheeled carriage is too painful, and the amount of transportation is small, and the amount of manpower required is enormous.

The welcome change is that with the development of iron smelting and steelmaking technology in Lianghe, more and more steel components are used in various facilities, such as waterwheels, the central shaft of which is already made of steel.

In this way, it seems that the application and promotion of the four-wheeled carriage should be effective at the end of the year.

It would be better if there was rubber. I have the impression that natural rubber is cultivated in Brazil and Mexico in South America. It seems that it will take some time to introduce rubber or plant rubber.

Perhaps the Age of Discovery, which will be the first to begin with China in this era.

The news from the front came that Li Bao had already occupied Liuqiu and temporarily used the Penghu Islands as a place of anchorage for the navy. And a large number of naval officers and men, who immediately landed on the island, have already overcome obstacles and started a new journey.

Fortunately, with Huang Shishun, otherwise the navy had just occupied Liuqiu, and the supply of food and daily necessities would always be a problem.

The Liu family and those shipwrights would take a boat to the south, first to Xuzhou, and then to build a new shipyard at the mouth of the Lianshui Army.

Wang Song couldn't help but sigh. It's all about the beginning.

"Xianggong, let's drink some soup!"

Standing outside the door, through the window, looking at the man who was concentrating and busy inside for a long time, Zhao Duofu shook his head slightly, pushed open the door and walked in.

Zhao Duofu came in, scooped a bowl of green porridge soup, and handed it over.

"Princess, why haven't you slept yet?"

Wang Song threw down his pen and took a sip of mung bean soup, exhausted. This writing and painting is more tiring than fighting a battle.

"It's too hot and I can't sleep, so let's see what Xianggong is busy with."

Zhao Duofu was dripping with fine sweat on his forehead, but he picked up a handkerchief and wiped the sweat off Wang Song's forehead.

"Xianggong, the slave family read the newspaper today, and said that there is a lot of fighting in the south

Lehu, Mrs. Yang and her gang of thieves are very fierce, and they are ...... Ting can't seem to hold on!"

Zhao Duofu hesitated and whispered, his brows furrowed, obviously worried.

She never asked about marching and fighting, and Wang Song didn't let her care. Women stay away from war, I don't know which person said it in later generations, anyway, Wang Song agrees.

Today, Zhao Duofu raised these things, obviously because the war was not good for the Great Song Dynasty, father and son were connected, of course she was worried about her parents and siblings.

"Lady, you don't care about these things."

Wang Song said softly: "Follow me, let you be wronged."

He didn't want Zhao Duofu to get involved in these military affairs. It is a matter of life and death for thousands of soldiers, and even he cannot make a rash decision.

Zhao Duofu said in a low voice: "Xianggong, if you don't have me, you don't have to be in such a dilemma as now." It's all the concubines who are dragging you down. ”

Between the two of them, there is a Great Song Dynasty court sandwiched between them, and there is a code of ethics. Even if the two want to deal with it lightly, no matter what, it is a hurdle that cannot be overcome.

When it comes to Wang Song's status today, even if he doesn't want to be in the yellow robe and ascend to the throne, I'm afraid that the generals and staff under him will not agree.

Moreover, everyone knows how many people in the Great Song Dynasty are looking forward to Wang Song's ascension to the throne and the surrender of Ganlin.

And the Zhao and Song courts, one after another humiliating peace talks, gave up tens of millions of people in the north, and when they arrived in the south of the Yangtze River, in order to maintain huge military expenditures, they levied and expropriated violently, and the people's grievances were boiling.

Without Yue Fei, Zhang Xian, Liu Qi, Li Bao, and Wang Yan, Liang Xing, Li Yanxian and other loyal people, the court has no righteousness, and only relying on one Han Shizhong can only be a backwater and a big wave.

"Lady, don't worry!"

Wang Song shook his head and said with a smile: "There are still Han Shizhong and Zhang Jun in the imperial court, what do you say, Mrs. Yang is not the enemy of the imperial court."

Zhao Duofu nodded, and Wang Song's casual words made her quiet.

"Xianggong, who is that woman from Goryeo, I heard that she is the royal family of Silla, is this true?"

Zhao Duofu came over, sat on Wang Song's lap, and asked with his arms around his thick neck.

Wang Song smiled bitterly and was about to answer, but Zhao Duofu gently covered his mouth with his hand.

"Xiang Gong doesn't have to explain. The concubine looked at the woman, and she was full of admiration for the Xianggong, and it was a matter of friendship between the two countries, so the Xianggong still married the woman early. ”

When he said these words, Zhao Duofu's heart was sour. No matter how open-minded a woman is, no one will be willing to share her husband with another woman.

But Zhao Duofu is from the royal family and grew up in the whirlpool of power, so she naturally knows the importance of it.

Instead of being a jealous woman, it is better to go with the flow, rather than hanging like this, it is better to cut through the mess quickly, and fulfill Wang Song's wish, and he can naturally get his respect.

Wang Song was shocked. He didn't pay much attention to this Korean woman, Kim Dunxiu, but he was hard to argue, after all, he wanted to get involved in Goryeo.

Zhao Duofu's leisurely words sounded, but this time they poked Wang Song's heart.

"Xianggong, Huang Xiaoniang from the Trade Division, Zhao Xiaoniang from the Military Hospital, are you going to drag it out like this?"

"Lady, I'm ......"

Wang Song opened his mouth again, and stopped talking.

What could he say at this moment?

He can shake, these women can't afford to wait. If he remembers it well, Zhao Ruolan is already twenty-eight years old, and Huang Xin is almost the same. In their era, the two are already older leftover women.

Does he really want to clean himself up and make them sad or miserable for the rest of their lives?

The love of others is pure, but he hesitates. In the final analysis, he doesn't have the slightest confidence in such a thing as feelings.

If you don't have faith, why keep provoking others?

I still can't change the prodigal habit!

"Huang Xiaoniang is thoughtful, and she is a virtuous helper; Zhao Xiaoniang never abandoned, marched and fought, and could accompany her husband. Every woman has admiration for Xiang Gong, and Xiang Gong still made a decision early and accepted them all. ”

Wang Song said apologetically: "Lady, I disappointed you!"

If he could swing his knife earlier, he wouldn't have mistaken these women for so many years.

There is also the entanglement between him and Li Shishi, who is based on historical rumors and admires the other party's talent. Seeing one, loving one, not abandoning it from the beginning to the end, but not talking about marriage, is indeed hesitating.

Li Shishi doesn't know where he is now, otherwise how would he deal with himself.

Confused and confused, seeing one and loving the other, is it his sullenness in his previous life, in exchange for the fraternity of this life?

Still too soft-hearted!

Speaking of which, it's still the same sincere.

"Lady, I've disappointed you for my husband!"

Zhao Duofu stroked the man's face and kissed each other involuntarily. On a summer night, Wang Song's breath became short.

"Xianggong, don't be ...... like this"

Zhao Duofu's face was crimson, and his eyes were like silk, but he stopped Wang Song's claws.

"What's the matter, lady?"

Wang Song was unrelenting, and the devil invaded step by step.

"Xianggong, the concubine is not feeling well, that ...... Here it ......."

Wang Song kissed his wife the mouth and stopped the exploration of the demon hand.

"Xianggong, the tassel is waiting outside the door, these days, let her replace the concubine."

The tassel is Zhao Duofu's newlywed, and the personal maid sent by the Zhao Song royal family from Lin'an Mansion. has served the princess and concubine in the palace since he was a child, and he is very familiar with Zhao Duofu.

"Tassel, come in!"

Wang Song was still stunned, and Zhao Duofu's maid walked in with her eyes down.

Compared with a few years ago, the tassel is already graceful, the girl has grown up, the figure is long, the eyebrows are thin, the eyes are delicate, the typical Jiangnan woman, it looks a little similar to Zhao Duofu.

The conversation in the room, tassels heard clearly outside the door. She glanced at Wang Song with a flushed face, and quickly lowered her head again.

"Tassel, I've been unwell these days, so you'll serve the prime minister's daily life. Got it? ”

"Lady, why are you doing this?"

Wang Song sighed, shook his head and said, "Lady, I'm not a demon in lust, why are you doing this." When Tassel has a sweetheart, wouldn't it be better for us to give her a dowry?"

"Xianggong misunderstood!"

Zhao Duofu stood beside Tassel and said with a smile: "Although Tassel is a subordinate, she is like a sister to me, how can I not know her thoughts."

Tassel is her maid, let her serve Wang Song, and she also has a helper in the "harem". Wang Song will definitely have many women in the future, if he doesn't have help, he will inevitably lose his due position as he gets old and decays.

Wang Song was stunned for a moment, and said: "Tassel, what do you think, you can talk to me, I will definitely not embarrass you."

Tassel blushed and said softly: "Tassel only wants to serve the princess and princess for the rest of his life, otherwise he will not marry for life!" This is the mind of the tassel, and the princess knows it. ”

Zhao Duofu nodded and said: "Xianggong, the tassel is already twenty-eight years old, and if it grows longer, it will become a joke in other people's mouths." She admires you, and you will grant her wish. ”

Zhao Duofu left, and only Wang Song and Tassel were left in the room.

"Tassel, why are you so troubled?"

Tassel came up with a red face, squatted down in front of Wang Song's chair, and whispered: "Xianggong, let the slave and maid serve you!"

The irrepressible gasps of the men and women in the house came, but Zhao Duofu outside the room was in tears.

She touched her stomach and said sadly: "Can't you be more angry and get older early?"