Zhu Gaoxian directly built a bicycle by himself, and when ten people registered, Zhu Gaoxian invited Zhu Di and put the car in the courtyard, "Today, let's demonstrate the changes that science and technology have brought to us!" ”

Xia Yuanji is very shameless, since Zhu Gaoxian taught that lesson in the lobby of the military department, he began to follow Zhu Gaoxian inch by inch, and saw with his own eyes that Zhu Gaoxian spent half a month to build a bicycle, and among them, he found several blacksmiths in Yingtianfu to hand over many small parts to these blacksmiths and teach them how to build.

"I'm coming!" Xia Yuanji snatched the bicycle in Zhu Gaoxian's hand, this bicycle, after Zhu Gaoxian was made, he saw Zhu Gaoxian ride it once, and he learned to ride, at this time, he was eager to show it.

Zhu Gaoxian gave him the car, Xia Yuanji stepped on a pedal, took two steps forward, and then jumped up, sat on the seat, and stepped on the two feet alternately, and the car turned in circles in the courtyard, so fast that it was dazzling.

For Zhu Gaoxian, it is not fast, but for Zhu Di and others, it is only slower than a horse.

"This ......" Zhu Di rubbed his hands, eager to try, and when Xia Yuanji got out of the car, Zhu Di wanted to go over and try, Zhu Gaoxian grabbed him, "Dad, this is easy to wrestle, don't try it, let those young people try!" ”

"Is your dad very old?" Zhu Di glared at his son angrily, and saw that Wang Ji had snatched the car and didn't know how to get on the car, so he stopped thinking and asked worriedly, "Is it difficult to learn to ride a bicycle?" ”

"It's hard, it's not hard!"

Zhu Gaoxian looked at the bicycle, still very embarrassed, at this time, it should be time to touch the system, why didn't the system show the reward?

A thought turned around him, and a familiar mechanical female voice suddenly came from his mind, [Congratulations to the host for opening the development of scientific and technological productivity, and the system will reward you with a rubber tree]

Zhu Gaoxian breathed a heavy sigh of relief, and the system finally fought for once.

Rubber trees are native to Brazil, and steel, coal and oil are essential raw materials for industrial development, and China does not produce rubber.

Historically, China introduced rubber trees in 1904, Yunnan imported rubber trees from Singapore, although in later generations, China became the world's fourth largest rubber planter, but the application of industrial rubber still depends on a large number of imports.

If Zhu Gaoxian went to the tropical rainforest in South America to find rubber and introduce it for planting at this time, it would be too unrealistic.

In terms of time, he can't wait.

Although the system has never disappointed him, according to the urine properties of the system, this rubber tree does not know where to plant?

However, the places that are suitable for planting rubber in the Ming Dynasty are just those places, such as Yunnan, Hainan, Guangdong, Guangxi and other places, although they are still far away from Yingtianfu, but they are much better than crossing the ocean.

Zhu Gaoxian pointed to the wheels of the bicycle, which were steel wheels with a layer of cork on the outside, and said to Zhu Di, "Dad, we have a rubber tree in Daming, if we can find out where this rubber tree is?" My son will be able to transform the wheels into rubber wheels, which will make them faster and more comfortable. ”

Zhu Di didn't doubt his son's words at all, and he didn't ask where the rubber tree was, but said arrogantly, "As long as it's in Daming, my father will let someone help you find it." ”

"There is a high probability that in Yunnan and Qiongzhou, my son drew rubber trees, and my father asked him to bring a letter to Mu Cheng and ask Mu Cheng to help find it, as for Qiongzhou, my father sent a proper person."

Xishuangbanna in Yunnan Province is the most suitable place to grow rubber, and later generations, it has become the second largest rubber planting base in China. Hainan is more likely to be Dan County.

"If we want to vigorously develop industry, we must vigorously plant rubber, which is of great use to our son."

Even if Zhu Gaoxian didn't say that it was useful, Zhu Di would pay attention to it, and he immediately asked, "Who do you think is the most suitable to go?" ”

Zhu Gaoxian thought for a while, "Otherwise, let Huang Zicheng do it, let him go to Qiongzhou Mansion, and as for Yunnan, I will hand it over to Mu Cheng." In addition, the son wrote out the tips for rubber planting to him to see if he could find a way to promote the planting there. ”

However, just growing rubber in the country is only a stopgap measure. If it is to meet the large demand for rubber in the future, Daming must have a few suitable areas for growing rubber, looking back on the cultivation of rubber in Southeast Asia, Zhu Gaoxian feels that it is time to consider opening up overseas colonies.

In later generations, the top five countries for rubber cultivation were Thailand, Indonesia, India, Malaysia and China.

Fortunately, the other four countries were all neighbors of the Ming Dynasty, but even so, it was impossible for the Ming army to reach the place he fancied with four horses' hooves.

Wang Ji has not yet ridden the bicycle, he fell hard, but no one laughed at him, and the other nine people on the side stepped forward one after another, persuading him not to be reckless, at first he said very well, saying that he should not fall out of a pain, and later, seeing Wang Ji insisting, someone said the truth, "The main thing is such a good car, if it breaks, what do we learn?" ”

Wang Ji said angrily, "In the future, if you are a classmate, don't you care at all whether I really fell and injured myself?" ”

Guo Xuan couldn't help but laugh, "It's not that I don't care about you, but you also know that there are thousands of people like you in Daming, but the bicycle is just this one." ”

Zhu Gaoxian walked over and happened to hear it, and waved his hand, "Guo Xuan, your words may have been right in the past, but now I still want to say that I will change this concept in the future, I am very clear, any person is more precious than any object." If the bicycle is broken, we can repair it and rebuild it, but if a person falls out of three long and two short, missing an arm and a broken leg, it will be irreversible. ”

"When we develop science and technology, first of all, we must keep in mind the idea of putting people first, so that we can design and manufacture machines that will help human beings and will not eat human beings."

Moreover, the Ming Dynasty will be the real center of the planet of the earth in the future, and he wants to make every Ming person have a sense of superiority and pride, and be proud of the honor of all other countries.

As for who to send to do such an important thing as rubber, although Zhu Di asked his son's opinion, but with such an important resource of rubber, how could a person like Zhu Di who is so suspicious leave it to Huang Zicheng alone?

Zhu Di thought very far-reaching, since rubber plays a vital role in the development of industry, then he must consider vigorously developing planting.

Huang Zicheng saw that Qi Tai was appreciated by the four princes and got a typist position, and he was so envious that he was about to cry, how the typist was treated, it didn't matter, the important thing was that what this post dealt with was science and technology, which was a supreme honor.