At the end of the Three Kingdoms, the military disasters and man-made disasters were on the one hand, and on the other hand, it was the successive years of drought and famine that led to the continuous death of a large number of people. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 infoHowever, Liu Zhang can already think about drilling wells, and the construction of water canals does not need to think too much about this aspect. There will be drought in Yongzhou and other places, but there is still no problem in Shuzhong, this prevention work has been taken into account when occupying Chang'an, food is always the first priority of survival......

Although Fa Zheng didn't know what Liu Zhang was looking at with that handful of leaves, he knew that Liu Zhang was thinking. As for that handful of leaves? Fa Zheng had already ignored it, but Kuai Yue on the side didn't know what was going on, and was pulled aside by Fa Zheng and the two of them found a lawn to sit on the ground......

Eucommia ulmoides is a unique and precious tree species in China, mainly distributed in the middle and lower reaches of the Yangtze River and the southern provinces, and is now widely planted in various places, its bark is a precious medicinal material, and its leaves also have medicinal value. The medicinal value of the bark does not need to be thought about at all, it is absolutely shocking, but what is even more surprising is that his bark and fruit contain a large amount of glue, this thing is very powerful, it is not only ordinary rubber, but also in aerospace, national defense, shipbuilding, chemical, medical and other fields have its figure......

The most important thing is that this thing can be made into tires, which has super tear resistance, aging resistance, fatigue resistance, wear resistance and so on. Although this thing cannot be extracted like rubber, using lye is the easiest and most applicable method. It is just that Liu Zhang is not short of lye now.

The lye, whether it is plant ash, lime, or electrolytic salt with generators, can be purified to lye. So you can purify the rubber yourself? In other words, you can get good tires without any rubber at all? Don't think about South American rubber at all? Anyway, I just need ordinary tires, and I can't use materials as exaggerated as aviation.

In ancient times, there was already lye, so I should be able to refine it, and I don't know about other ways. When I drank tea when I listened to those old farmers, I didn't know if it was true, but it was definitely a good thing that I had eucommia gum. At the very least, your tricycle, horse-drawn carriage, and bicycle can be changed.

"Filial piety, this thing is very good, very good." Liu Zhang was happy, but he turned back to Fa Zheng and said.

Fa Zheng got up and ran over and asked, "Lord, what is the use of this kind of tree just to produce medicinal herbs?" "What can a medicinal tree do?

Liu Zhang took out his saber and cut it a few times on the tree pole and said, "Look at these barks, the silk in the middle, and the glue on this fruit, these are all things that can be refined." With these things, we can do without wooden wheels in the future, and we can refine a lot of good things from this thing. "Seriously, a rubber thickened wooden shield is better than an iron shield, and as long as it's thick enough, you can also recover arrows.

Liu Zhang knows how easy this thing is in people's livelihood, and as for the military, he doesn't need to test too many terrifying things now. There are too many thieves in the world, after all, the damned are going to die, and if Liu Zhang stops those people from dying, it will be a bit too much. If you want to follow the way of heaven, you just need to rescue the people......

"Quickly pass the order and open up Jingzhou, Chang'an, Nanyang and other places. All the planting of eucommia trees will be reissued with a penny, and after the planting is mature, all the fruits will be collected, and the glue will be collected according to the penny. "We must vigorously plant, at least a few thousand acres, and it is not a bad thing to have more trees, not to mention the trees of this cash crop?

Fa Zheng asked curiously, "Lord, is this thing really useful?" "People who haven't used glue don't understand how easy it is.

Liu Zhang nodded and said, "Go ahead, this is more important than our attack on Cao Cao and the others." "This thing can feed many people, and it can make Liu Zhang comfortably dominate.

In the end, the goal of the law was achieved, and the standard for not moving the war in the second half of the year was determined. In the past two years, Liu Zhang has occupied the Quartet, and he has been busy, but he has not enjoyed life, although he is still busy, but he also has more time to discuss his knowledge with the group of people in Jingzhou......

After finding Eucommia gum, Liu Zhang began to let people get the fruits of Eucommia gum all over the mountains, in order to get a comfortable carriage for himself. This bumpy road feels like he is going to die on it, you must know that riding a horse is easy to develop looped legs, Liu Zhang doesn't want to let himself be deformed......

Feudalism is good, Liu Zhang has found enough materials in just over half a month. A basin of lye was prepared to purify Eucommia ulmoides gum, and this purification alone took Liu Zhang more than half a month, and Fazheng and these people did not understand this change in chemistry at all. The mold iron sleeve of the tire has been laid, and the inner tube can only be studied slowly......

This point has to be said that the wisdom of the ancients, such a complex bronze buckle can be made, this tire is really not difficult. There must be talents under the heavy reward, it took more than half a month for two tires to come out, although it looks ugly but after all, it is rubber, although the inner tube is uglier and thicker, but it is finally made out. Speaking of which, the inner tube was cut before the valve core was struck......

Although ugly, after a few months of experiments, he still came up with a matching tire, Liu Zhang touched the heavy wheel cover that was almost the same as a car, and felt that his IQ was questioned, so let's study this slowly in the future. As for the bike, it's a little smaller, but it's really good......

Riding a bike in the yard for a wave, I feel that the chain is a little loose, this one needs to be reinforced, I feel that the car is a bit big, not very suitable for myself. On the side, Fa Zheng, Zhang Ren, Ma Chao, Wei Yan, and Zhang Xiu were about to pop out. The lord has been studying it for so long, and it is such a thing? Can you really run on a ride? Seems lightweight?

"My lord... This, is this the bicycle? Can you run just on your legs? Fa Zheng felt that he couldn't figure out why? But now Liu Zhang is really riding a bicycle in the waves......

Liu Zhang is also helpless, because it is simple to make, but it is very laborious to ride, but it is indeed a lot more convenient when he is in the city. This needs to be slowly improved in the future, and it would be good if what was produced for the first time could be used, as for the future? Then slowly improve it......

Huang Chengyan touched his beard on one side, to be honest, he had been thinking about it day and night in the past few months, and finally saw the bicycle walking. Compared to horse-drawn carriages, there are also carts pushed by people, and this kind of bicycle is really convenient.

"Lord, the convenience of the bicycle is good, but it's a pity that there are so many fine irons." Fine iron is difficult to refine, and it is really distressing that so much iron has created such a thing.

Fa Zheng said with a smile: "Jingtie is just a dead thing, but this bicycle is a living thing and can be used by us." "With this car, it's convenient for short distances or long distances.

Liu Zhang got down and leaned over the car and said, "Who will try it?" After riding for a long time, Zou Fu hurriedly came over and wiped Liu Zhang, and this group of people looked at Ma Chao but stepped forward to try it.

Learning from Liu Zhang's example, but it feels a little difficult. Obviously, he was a fierce general, but he looked very nervous under the gaze of so many people, staggered and kicked a few feet, and the car ran away with a swoop, and then crashed into the flower pond next to him without braking, causing everyone to laugh for a while......

Ma Chao got up slightly embarrassed and tried to ride again, this time he had experience, and with the slow pedaling, he actually slipped away in the yard. After two laps, Ma Chao said excitedly: "This speed feels faster than a horse, and it doesn't take much effort...... "It's really convenient for people with strong physiques like them."

Immediately after that, Zhang Ren, Wei Yan, and even Huang Zhong couldn't help but give it a try. The group tried Fa Zheng and Kuai Yue, and they also learned to try it. Compared to riding a horse, this thing is completely under my control, although the handlebar looks a little stiff, but after touching the oil, it is okay.

"My lord, this thing is good, the three-wheeled carriage will be very fast if it has this. There is also that kind of tricycle, which will be very convenient to transport grain in the future. "After Fa Zheng tried, he immediately thought of transporting grain, you must know that the previous car was made of wooden wheels, and it was very easy to break down when walking, and it was a waste of war horses. But now this kind of bicycle, tricycle, one person can transport a lot of food, and there is no need for war horses......

"It's okay to produce a little bit of the bike, to break up the parts and put them together. As for tricycles, mass production began, which was very convenient for our army to transport grain. "You must know that the roads of ancient times were difficult to navigate, and wooden wheeled vehicles were very draining.

Fa Zheng figured it out: "Lord, the cement road before is the same as this tricycle, right?" As long as one of those roads is built, I'm afraid that the thousands of miles will only be there in an instant, right? "If Qianli Road is cement with a tricycle, it will only take a week, but if it is replaced by an old wooden wheeled vehicle, it is really enough.

"Newspaper... Han Song, Lord Han, asked to see. Liu Zhang was about to explain something, when a soldier outside came to report eagerly.

Liu Zhang frowned, could it be said that something happened to Fancheng or Wancheng? At this time, only Cao Cao had the courage to beat himself, and Yuan Shu couldn't come, so who would touch his big tiger's buttocks? Now Liu Zhang is not the gatekeeper dog, if he touches his buttocks, Liu Zhang will not chop people up?

"Ladies and gentlemen, go to the hall to discuss the matter." Liu Zhang frowned and got up, let go of the car first, and now who provokes himself is the most important. In the past, he was a sick cat, and others said that he would forget it, but now he is a tiger, and the male Cao Cao himself has scratched him several times, and he can only howl in his throat.