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Rubber shoes are light and comfortable, and they are very soft and have excellent elasticity. They are suitable for all kinds of sports. They are better than all the current shoes of Great Tang. This is beyond doubt.

Although later generations evaluated that natural rubber shoes are not wear-resistant, it is because the technology of later generations is very developed, and there are too many products that are more wear-resistant than natural rubber shoes. Therefore, it seems that natural rubber shoes are not very wear-resistant. In terms of level, no one kind of shoes can surpass the rubber shoes that Li An just researched and developed.

Great Tang will certainly popularize rubber shoes in the future, but for now, the availability of popularity is completely absent. This is of course because the output of rubber is too low to meet large-scale production at all, and because mass production cannot be achieved Therefore, the cost of each pair of rubber shoes is very high, and the ordinary person can’t afford it.

Wearing natural rubber shoes designed and manufactured by himself, Li An feels that the whole person has become energetic and walks a lot more freely than usual.

Because it was winter at this time, Li An put thick cotton pads in the rubber shoes and thick cotton socks on his feet, so he could not feel the cold at all, just because the soles were too thin. It is not easy to go where there is muddy water, but almost all the roads around the capital are covered with concrete pavement, and there are almost no dirt roads, so there is no such worry.

In addition, Li An has a pair of rain boots in addition to rubber sneakers. Wearing rain boots to go out, no matter how big the mud is, you can calmly deal with it.

Winter is a snowy season, and once the weather is slightly warmer, the snow will melt, making the mud become muddy. For people with high status such as Li An, there is no need to walk on the dirt road, but for living on concrete roads. People who can’t radiate anywhere will become very painful.

In addition, the southern water network area is mainly planted with rice, and when planting rice, most of the 100 surnames are barefoot, which is more convenient when planting rice, but it is easy to be targeted by ants, thus giving people His body caused great harm, and once he put on his boots, he could well resist the attack of frogs.

There are a lot of fields near Li An ’s other courtyard. In the past, when the weather was bad and the road was muddy, Li An would never go to inspect it. After all, when I went to it, the entire shoe was soaked and the feet were wet. Very uncomfortable, and now, with advanced rain boots, of course, there will be no worries in this regard.

“Minister Li, this field, this spring, will all be planted with sweet potatoes, and the next one will be planted with corn. They are all new species shipped from America. The yield is much higher than that of our Great Tang millet, 100 All surnames are willing to grow America ’s crops, which also fills their stomachs better. “

When Li An went to the field for inspection, an agricultural official spoke introduced.

Although the promotion of America ’s crops has been completely handed over to the relevant officials, after all, only Li An masters the highest technology and understands the characteristics of these America ’s crops. Therefore, Li An will guide and teach these officials from time to time. How to better promote these crops, and examine the results of the promotion of officials, give praise to those who performed well, and encourage those who performed poorly.

In order to carefully examine the preparation of the relevant crops, Li An went down to the field and walked on the muddy land to observe the preparation of the land, and this cried the Agricultural Officer of Imperial Court.

Li An walked into the muddy land with rubber boots, while the rest of the staff walked into the muddy earth with ordinary cotton shoes. The rubber boots were covered with mud, which did not hinder anything, and the feet were not wet. Ordinary shoes are different. After being contaminated with muddy water, they easily penetrate into the inside of the shoes, making people’s feet wet and very uncomfortable.

The reason why Li An walked into the muddy land in person is not to deliberately pass the crowd, but to verify the use of rain boots, new products must be verified before they can confirm the performance.

Through continuous one hour inspection in the muddy ground, Li An is generally quite satisfied with the performance of the rain boots. At least, his footsteps are always dry, and the mud water has not entered the rain boots. This is enough for the rain boots. Too.

After walking out of the muddy ground, Li An sat on a small stool, took off his rain boots stained with mud, and put on rubber shoes.

“Let you go with this official in the muddy land, I’m really sorry, but what about the 100 surnames? Only when we walk into the muddy land personally can we be closer to the people and let the 100 surnames trust our officials, in addition , This Official newly invented the rain boots, this is the thing, the effect is not bad, at least, This Official ’s feet are not wet at all, after the mass production in the future, you all people can wear such rain boots, so, do n’t worry Going to the muddy land. “

Li An pointed to the dirty rain boots and said.

“This is a rain boot? It looks impervious, and it’s relatively soft. I don’t know what material it is made of?”

An agricultural official asked.

“It’s rubber, made from rubber juice mined from the Rubber Tree shipped from America to see if it’s great.”

Li An said with a smile.

“Oh, it turns out that this is a shoe made of rubber material. It turns out that Rubber Tree has such a great effect that it can be used to make shoes. It’s amazing!”

“The juice from the Rubber Tree can actually be used to make shoes, which is really interesting. With the Rubber Tree in the Great Tang, you can use these impervious shoes in the future.”

Li An said happily: “There is nothing magical about it. The silkworm is just a small insect, but the filaments spit out of the mouth can be made into clothes. Isn’t it also amazing.”

“Yes, Yes, Minister Li makes sense. Since the silk thread spit out from the insect can be used to make clothes and the juice flowing from the trees, of course, it can also be used to make shoes.”

“Great Tang has magical silkworms, America also has magical Rubber Tree. Now America ’s Rubber Tree has taken root in Great Tang. In the future, my Great Tang will become richer. Everyone must work hard to build a stronger Great Tang Empire and work hard. “

Li An excitedly encouraged.

“I will follow the teachings of Minister Li, and I will do my best to work for the Imperial Court.”

All officials also followed the excitement, and it was a very happy and proud thing to be an official in a very powerful country.

After verifying the performance of the rain boots, Li An returned to the Research & Development Center to sort out the technology of manufacturing rain boots, and after a large amount of rubber resources in the future, large-scale production.

In addition, Li An has begun to develop more important equipment. This guy is more important to the Great Tang Empire and is a very important item for future generations. Without this item, the entire society will be difficult to develop.

This is the famous Inflating Tyre. Only the steam car equipped with Inflating Tyre is the best steam car.

In addition, the tires also have different sizes. The large ones are steam car tires, and the smaller ones can be Bicycle tires. As long as Inflating Tyre achieves mass production, Bicycle has practical value, and steam cars will become more The comfort, fuel consumption is smaller and faster.

Because Jiaozhou and Yazhou can only deliver more than 100 kg of rubber juice per day, rubber resources are extremely scarce strategic materials, and Li An also cherishes it when it is used, and it may cause even a little waste. .

The technology of Inflating Tyre and tires is not complicated. As long as you try hard, you will always find a way. However, in the inflation position of Inflating Tyre, it is a technical difficulty. It is a part that is not easy to grasp. After all, this part is the easiest The location that causes air leakage must be dealt with, otherwise, it will cause great hidden dangers.

Li An and the technical personnel, after many studies, finally produced the most original pneumatic inner tube. As for the outer tube, the technical difficulty is less, and it was quickly developed. The pump that inflates the inner tube is very simple. With the current industrial strength of Great Tang, it is with no difficulty to make gas cylinders.

The inner and outer tires, as well as the air cylinders are all manufactured. The next is the time for the experiment. In order to reduce the difficulty of Research & Development, Li An ’s first research and development inner and outer tires are all small bicycle tires on Bicycle. It’s easier, and the danger of the experiment is almost zero.

When it comes to Bicycle, not at all has been popularized since the pneumatic tires have not been invented. Even after Li An made a more modern Bicycle, it was too bumpy to achieve large-scale popularity. Only a few nobles The servants of the family are using it.

Now that pneumatic tires have been invented, Li An believes that as long as pneumatic tires are introduced to the market, Bicycle will soon be popularized throughout the Great Tang, especially slaves of noble families, who will soon be equipped with such vehicles. After all, compared to The horses are hard to wait for. Bicycles are much more leathery and will not be hungry or shocked. The cost of preservation is relatively low.

“Minister Li, this inflatable guy puts it on Bicycle, will Bicycle become much more comfortable?”

No one has personally experienced it, and everyone naturally does not believe what Li An said. After all, just adding a layer of inflatable rubber skin to the rim, how much change can be made, and for riding Bicycle, everyone will know, this not at How difficult is all.

“How effective it is, it will be clear if you try it yourself.”

Li An was too lazy to explain, and suggested that they try to ride a lap in person to prove how great their invention was.

“I will come first.”

A young technical talent then recommended himself, pushed the Bicycle equipped with rubber Inflating Tyre, walked a few steps, and rode up.

“Hey, it’s really different. It’s much better than when no tires are installed. You can hardly feel the bumps. The effect is really not good!”

After a lap in person, the young craftsman commented very excitedly.

“Let me try it too.”

Suddenly, there were more technical craftsmen who proposed to try the Bicycle with the tires installed, which is different from the ordinary Bicycle.

After the trial, almost all craftsmen gave a positive evaluation of Bicycle, thinking that the bicycle with tires invented by Li An is a very practical means of transportation.

Li An did not feel surprised by everyone’s affirmation. This is a natural thing. However, I still feel very happy in my heart because my research results have been affirmed.

But while being happy, Li An also understood that the price of temporarily rubber Inflating Tyre is too high to gain popularity in a short period of time. Only the Great Tang Rubber Tree grows into a large tree. Then, the natural rubber Only in this way can the cost come down and the final popularity can be achieved.

But for the Imperial Court and the big nobles, even if the cost is high, it is affordable. Therefore, the rubber tire products can temporarily achieve the popularity of the Imperial Court and the big nobles. Ordinary 100 people can only wait for many years to enjoy this Transportation.

With the continuous supply of rubber resources from Jiaozhou and Yazhou, Li An has successively manufactured 100 sets of bicycle inner and outer tires, which can be equipped with 100 bicycles, which is a limited edition.

Inflating Tyre of carriage has also produced 50 sets, which can be equipped with 50 vehicles, which makes the movement of the carriage more stable and faster. Most of them are sent to the Imperial Palace and handed over to Emperor for distribution. The rest are used by Li An kept it for himself.

In addition to these relatively small tires, Li An also manufactures heavy-duty tires, that is, tires specifically for Tank and various heavy machinery.

This kind of tire has higher quality requirements. The inner tube must be strong and durable, and the outer tire must be widened, thickened, and wear-resistant. Only in this way can the needs of large vehicles be met.

Especially Tank has a certain weight, its weight is at least between 10,000 jin and 20,000 jin, it is 5 tons to 1 tons in the later generations, it is a heavy vehicle that is not just in name only, but also in reality. The requirements for tires are of course higher.

Due to the extreme shortage of materials, the large tires manufactured by Li An can only be equipped with 20 heavy-duty vehicles, including ten tanks, and the rest are installed on Armoured Surveillance vehicles and various transportation vehicles.

After Li An developed the tire and tried it for a period of time, Imperial Court all saw the huge effect of Inflating Tyre, and put forward the requirement for large-scale popularization as soon as possible.

Only limited by the lack of Rubber Tree resources, large-scale popularization is somewhat unrealistic. Facing such a problem, Great Tang Emperor Li Longji came up with a way to set up a factory in America, and immediately announced Li An into the palace, he wanted to hear Listen to Li An.

“This Small Official Li An see Your Majesty.”

Li An respectfully saluted Li Longji.

“Minister Li, come here quickly. I have important things to discuss with you.”

Li Longji is very kind and very enthusiastic about Li An.

“Your Majesty has something to do. Despite the command, This Small Official will do everything in his power.”

Li An said.

“It’s about tires. I heard that most of the Rubber Trees planted in Jiaozhou and Yazhou will take 5-6 years to mine?”


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