The appearance of rubber tires has been highly valued by Zhao Zhen, and he immediately ordered the Gewu Institute to carry out research and research on rubber, fortunately, the three divisions have allocated funds, otherwise Zhao Zhen would have to make steamed buns with Bao Zheng again......

The biggest problem with natural rubber after heat treatment is that it will deform when exposed to heat and friction, which is an extremely difficult problem, and it will also harden in cold weather, reducing the shock absorption effect.

The craftsmen of the Gewu Academy have a big headache about this, on one side there are a large number of orders, and on the other side there are inevitable defects, so Zhao Zhen does not hesitate to come up with a huge reward, if anyone can solve this problem, the reward is ten thousand!

Not to mention the craftsmen of the Gewu Academy, even for ordinary merchants, this 10,000 yuan of money has been a huge amount of money for a long time. No one can give up such a temptation, so Gewu's enthusiasm is mobilized again, but sometimes more than enthusiasm is enough, and luck is an important part of it.

Zhao Xiaowu, the young Gewu official who had invented the steam locomotive, was once again favored by the goddess of luck, and by a chance coincidence, he experimented with the method that the official had told him to make lead white.

In a muddy jar containing a dilute acetic acid solution, a spiral-shaped sheet of lead is placed on top of the solution, and the mouth of the jar is covered with a lead plate. The canisters were placed on horse manure in the hut and stacked on shelves propped up with layers of wooden planks.

In fact, Zhao Zhen already knew the principle of making lead white, and there was already a certain amount of lead white in the palace............ The fermentation of horse manure releases heat to volatilize acetic acid, which reacts with lead to form basic lead acetate, which is then carbonated by carbon dioxide to form white basic lead carbonate. After more than a month, most of the lead is converted to lead white. Take out the lead white, mix it with water and grind it into a paste, and finally you only need to wash off the soluble lead acetate, and then dry it to get lead white.

Out of blind trust in the officials, Zhao Xiaowu added this substance called lead white to the rubber, and also added sulfur...... So a kind of rubber that does not melt and deform when exposed to the sun is produced.

And the final credit for all this is on Zhao Xiaowu, but only he knows that this is out of worship of the official family, and the helplessness of the dead horse as a live horse doctor has long been the current rubber.

In fact, before him, someone had already added sulfur to the rubber, but the effect was not as good as Zhao Xiaowu's, if Zhao Xiaowu hadn't found that adding lead white made the rubber vulcanized more thoroughly, he wouldn't have gotten the reward of 10,000 yuan.

In the end, he used this 10,000 yuan of reward money in the Gewu Academy, for him money is nothing, the previous steam engine has earned him a lot of reward money, the official family has a reward every now and then, plus his own official money, the whole family can be fed, why do you want so much money?

He has also become a clear stream among the Gewu officials, and Su Shi, who has just been transferred to the Gewu Academy in charge of Gewu, praised it, although he knew that this was actually arranged by the officials, although he already knew that the officials had already made vulcanized rubber in the palace, but he still did not hesitate to praise Zhao Xiaowu's character.

Now Su Shi is fully responsible for Gewu, and his role is very simple, to regulate and lead the rhythm between Gewu and the imperial court, manage the Gewu officials, and regulate the problems between them and the imperial court officials.

Gewuyuan has now become the largest yamen in the Great Song Dynasty, not only a small research and development institution, the wisdom palace in Beijing has also been included in the scope of Gewuyuan, with many subjects, absorption, and many types of craftsmen recruited, ancient and modern!

They are the force of the rapid development and progress of the Great Song Dynasty, the train provides the Great Song Dynasty with amazing speed, this speed is incomparable to any kind of thing, after so many years of development, the technology of neat trains has been quite mature.

The principle of the steam engine is there, as long as you study it carefully, you will one day be able to study it thoroughly, and now the train of the Great Song Dynasty has not only appeared in the land of Sijing, the power of merchants and capital is powerful.

Some businessmen saw the benefits, so they spent money to buy trains from the Gewu Academy, and laid the railway, planning to operate it themselves, even Zhao Zhen had to admire their business acumen, this is actually monopolizing transportation!

What industry is the most profitable? Monopoly industry, of course!

The kakuin and the courtiers regarded the train as the most important weapon of the state, so how could they accept the trade of merchants? But Zhao Zhen didn't think so, the laying of the Great Song Dynasty was very slow, not because it couldn't be laid, but because it was the same as the construction of the Great Wall, which was quite troublesome.

If it weren't for the importance of the Great Wall to the Great Song Dynasty, I'm afraid even the courtiers would not support it.

If the Great Wall can also be outsourced to merchants, why can't the construction of the railway? So Zhao Zhen issued an order to give the merchant a new opportunity again, the imperial court provided the train, and the merchant laid the railway himself, and when the final operation was carried out, the two sides divided each other fifty-fifty!

Even if the imperial court took a big advantage, these businessmen were still eager to take advantage of it!

Do you need to talk about the reason? Partnering with the imperial court to do business, taking the documents of the imperial court, this is an official business! Not to mention the money and wealth, the people must also believe it, are they still worried that there will be no guests?

The most important point is that his status has also been improved, which is something that cannot be bought with money, and when he goes out, he can say that he is a person who works for the imperial court............

The dense railway network was laid in the Great Song Dynasty, and the benefits of these railways were suddenly displayed from scratch is amazing, and the officials in the court suddenly woke up to the fact that these railways are the important place to develop national strength.

Originally, the transportation of grain from the south to the north was carried by light and sometimes by sea, but with the arrival of trains, how much grain could a train with seven or eight carriages carry? Transporting to the north day and night, it used to take a month or even more, but now it can arrive in less than six or seven days!

What a terrifying and amazing transportation capacity, if the demand is great, the south can even send more trains to meet the demand, it can be said that since there are trains, the imperial court can really start to control the price of grain!

In the territory of the Great Song Dynasty, almost all places can produce grain, and in a famine year, the price of grain will skyrocket, but after the train, once a place is affected, the food of the imperial court can arrive as quickly as possible to solve this trouble!

This makes it clear to many people that the days of making a fortune by selling grain by natural disasters are long gone, and it is better to make a fortune by factories now.

Invisibly, the problem of land annexation was resolved, and the speed of the Great Song Dynasty was also providing great help for the construction of the Great Wall while solving this problem.

Thanks to the increase of trains and railways, these transportation routes appeared on the land of the Great Song Dynasty like arteries, so that the materials needed for the great construction of the Great Song Dynasty have never been cut off, and a large number of stones and cement are transported to the edge of the Great Wall every day.

The construction of the Great Wall was not a very difficult thing, because of the subcontracting system of the merchants, they only needed to build in the place of their choice, and at the same time as building the Great Wall, they also built a cement road along the direction of the Great Wall on the side of the Great Song Dynasty, so that it was not only convenient to build the Great Wall, but also the route for the Great Song Dynasty to transport troops later.

Trains, railways, rubber, and so on became the speed of the Great Song Dynasty, and it was amazing to push the entire dynasty in an unpredictable direction............

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