The advantages of four-wheeled vehicles and two-wheeled vehicles are self-evident, not only the weight of the goods carried is much more, the stability and comfort are also much better, and the running is also faster, the Western countries of Europe began to use the four-wheeled carriage on a large scale in the fifteenth century, it can be said that the emergence of the four-wheeled carriage that can turn greatly improved the production efficiency and productivity of the Western countries of Europe, and also made the commercial circulation smoother, and the four-wheeled carriage that could turn did not appear in China until the late Manchu Qing Dynasty, which was hundreds of years behind.

So what could it be that there were no four-wheeled carriages in ancient China? The main reason is that China has not solved the steering problem of the four-wheeled carriage, it should be said that it is not difficult to solve this problem, on the basis of the four-wheeled vehicle with the axle is very easy to achieve, only need to change the suspension of the front wheel to a large disc, you can combine the part of the wheel and the body with the front wheel suspension, so that the front wheel suspension also follows the overall steering when the horse turns.

Then the question arises again, why can't the Chinese who can make the four major inventions solve a small four-wheeled vehicle steering problem? In his previous life, Guo Zhiyuan saw many indignant posts on the Internet, saying that the Chinese are not invented, but invented and not practical, and cited many reasons, such as environmental factors, China's terrain is far more complex than European Western countries, the road is not as flat as European countries, more suitable for flexible two-wheeled carriages, and then such as the horse factor, China is an agrarian society, horses are tight, ordinary people simply cannot afford horses, in order to save horses, it is enough to use two-wheeled carriages, and four-wheeled carriages are not needed at all.

It should be said that these reasons have some truth, but Guo Zhiyuan feels that this is not the fundamental reason, the fundamental reason is that China is Confucianism, and in Confucianism, such inventions and creations are classified as "strange and skillful", and they are not valued by the ruling class at all. In the end, the Western powers signed a shameful treaty with China's first invention *, which has to be said to be really ironic.

Because of this, in fact, Guo Zhiyuan thought of building a four-wheeled carriage after crossing into this era, but he has not implemented it, one is that the conditions are not available, he has not been able to take a breath since he rescued the cheap father, and the other is that he knows that it is impossible to change the times and dominate the world by relying on the advantages of crossing in those YY novels, under the strong historical inertia, inventing too many things that do not belong to this era, not only can not make him prosperous, but may bring him a catastrophe!

The reason why he is throwing out the invention of the four-wheeled carriage that can turn now is because he knows that Sun Chuan has been a pirate, which is likely to have a huge effect on his next plan, so he wants to get closer to the Sun family and tie the Sun family to his chariot, the four-wheeled carriage that can turn can't change the times, but it is enough to change Sun Chuan's attitude towards him!

Sun Chuan's reaction just now also confirmed his judgment, he had been engaged in maritime trade and was a giant in the chariot and horse dealership industry, Sun Chuan's vision was naturally not comparable to ordinary people, and he immediately realized the huge prospect of a four-wheeled carriage that could turn, without increasing manpower, but it could double the capacity and efficiency of his chariot and horse dealership, and it could not only double the profit of the chariot and horse dealership!

Of course, Sun Chuan couldn't believe Guo Zhiyuan because of his words, after all, no one had ever seen this four-wheeled carriage that could turn, so he said a little suspiciously: "Can adults really build a four-wheeled carriage that can turn?" ……”

Guo Zhiyuan laughed and said, "What's the benefit of this official deceiving you? This official still wants to do something in Gutian County, if I deceive Sun Lao, can I still deserve this county order? If Elder Sun still can't believe me, then we might as well make a bet, if the official can't build a four-wheeled carriage that can turn within a month, what if the official lets Elder Sun deal with it? ……”

Sun Chuan thought about it and felt that Guo Zhiyuan really had no reason to lie to him, and his personality was also relatively straightforward, otherwise he would not be able to be a maritime businessman, so he nodded and said, "Okay!" If the adults can build a four-wheeled carriage that can turn, then my grandson's carriage and horse shop can give the adults 20% of the dry shares! ……”

Don't look at Sun Chuan, he only gives 20% of the dry shares, but the Sun family almost monopolizes the entire Gutian car and horse dealership business, and has branches in Fuzhou and other big cities, and 20% of the dry shares is already a very large amount! And Guo Zhiyuan's original intention was also to use this four-wheeled carriage that could turn to bring him closer to the Sun family, so as to gradually tie the Sun family to his chariot, and naturally he would not care, he smiled and said: "This is easy to say, two percent is two percent, but Sun Lao also knows that the county government is short of money and food now, I launched this Justice of the Peace election, but also hope that the local squires can contribute some strength to jointly revitalize Gutian, Sun Lao is the leader of the Gutian squire, I hope Sun Lao can set an example and donate more silver and two ......"

Since Sun Chuan even gave 20% of the dry shares, he naturally didn't care about this little money, and happily took out another 1,200 taels of silver tickets and slapped them on the table, staring at Guo Zhiyuan with burning eyes and said: "The old man will give another 1,200 taels, and make up 2,000 taels, but the old man's ugly words are ahead, my Sun family's silver is not so easy to take, if you dare to deceive the old man, you can't build a four-wheeled carriage that can turn after a month, and the old man will definitely want you to spit it out with interest!" ……”

Guo Zhiyuan didn't care about Sun Chuan's threat, and laughed confidently: "Although Sun Lao can rest assured, he can't build a four-wheeled carriage that can turn after a month, and there is no need for Sun Lao to trouble me, the official will tie himself to the door and let Sun Lao deal with it!" ……”

Coming out of the Sun family's mansion, Xu Guangqi, who had not spoken, grabbed Guo Zhiyuan, and said with excitement: "Childe, can you really make a four-wheeled carriage that can turn?" As a pioneer of this era, Xu Guangqi naturally knows what changes the emergence of four-wheeled carriages that can turn will bring to this era, and he thinks farther than Sun Chuan, and has thought of more uses of four-wheeled carriages, such as equipping the army with four-wheeled carriages, then the efficiency of transporting military supplies will be greatly improved, and the combat effectiveness of the army will naturally be improved. That's why he was so excited, but he didn't show it well in front of Sun Chuan, and now he couldn't control the excitement in his heart when he went out.