Zhu Ling said: "When the villain is making a telescope, he uses a tool called a grinder made by Banzai Ye, which is very labor-saving to use, and grinds things quickly and brightly. But it is very slow to sawing and planing things when doing work, so is it possible to build a sawing machine and planer? ”

Good guy, it seems that the need is the driving force for the development of science and technology, it is really true, Zhu Youxiao thought secretly, and at the same time, he was shocked by the imagination of this guy Zhu Ling.

At this moment, the teapot placed on the stove opened, and the teapot lid was crackled by the hot air, Zhu Youxiao looked at the teapot in a daze and didn't speak, but it turned out that Zhu Ling spoke again: "The lid of the pot that can be topped by this heat is crackling, if the pot is big, will it top the house?" ”

"Watts, China's Watts!" Zhu Youxiao screamed excitedly, and casually picked up a black stick in front of him and drew it, he drew a big teapot, the spout is old and elder, and the front is followed by a bellows, and the handle of the bellows is connected to the crank of a spinning car.

The big bulls standing next to Zhu Youxiao were stunned, looking at the painting blankly, only to see Zhu Ling muttering: "Make it, make it, I must make it." ”

Zhu Youxiao ignored Zhu Ling, who had entered a state of chaotic thinking, for the time being, and let him go in a daze by himself.

Then Zhu Youxiao asked Lei Mingtian: "How many birds can we make in a month now?" ”

Lei Mingtian replied: "Now I can only make 30 bird guns a month, because it is too troublesome to build a gun barrel, it takes hundreds of times to make a gun barrel, and only 50% of them can be used without exploding, and the scrap rate is very high." ”

It seems that this building process is still not good, Zhu Youxiao remembers that there was an introduction to "fried steel" on "Tiangong Kaiwu", knowing that the steelmaking technology of the Ming Dynasty was good, when he opened the scrap purchase station, he had contact with small steelmaking plants, and knew some steelmaking common sense, now it is because the temperature of the steelmaking furnace is low, and good steel can not be made, mainly because the fuel used for steelmaking is coal, because there are too many impurities, so the temperature cannot be raised, which requires coking first.

Zhu Youxiao continued: "This is because our iron training is not good, mainly because the temperature of the iron-making furnace is too low, and we need to practice coke first, and then use coke to make steel."

Immediately, the method of coking and the pattern of the soil coke oven were drawn, and Xu Guangqi and Song Yingxing were shown to them, and the working principle was explained.

It can be clearly said that the modern soil steelmaking technology is much better than that of the Ming Dynasty, and Zhu Youxiao has more dealings with them because of the scrap acquisition station, so he can become an expert in this era, and Xu Guangqi and Song Yingxing are geniuses of this era. It was up to them to instruct the craftsmen to make coke and iron.

After these questions were finished, Zhu Youxiao began to discuss the planting of sweet potatoes, potatoes, tomatoes, carrots, corn, and peanuts with Xu Guangqi and Song Yingxing.

First of all, sweet potato, modern people know that the yield of sweet potato is very high, and the technology required for planting is also very simple, but in the Ming Dynasty, it was only planted in the southern coastal areas, and it was not planted in the north, and the reason was the problem of seedlings. So, Zhu Youxiao told them about the seedling cultivation method when he was in his hometown. First of all, we must dig a big pit, about three feet deep, and then build up the four sides with soil, three feet high in the north, two feet high in the south, and then dig a five-foot deep channel in the north of the big pit, and then dig an oblique hole and connect it with the big pit, cover it with some grass curtains and other warm facilities, so as to build a warm kang, put the sweet potatoes on the kang before and after the spring equinox, and then burn firewood to heat, after about ten days the sweet potatoes begin to sprout, then begin to spray water, after about twenty-five days or so, the sweet potato seedlings can grow to more than one foot long, At this time, the weather in the north has begun to warm, so the sweet potato seedlings are cut off and planted in the ground, this stubble of sweet potatoes is called spring sweet potatoes, and when the mango is planted, after harvesting the wheat, the spring sweet potato seedlings are two feet long, and then you can cut them off and plant wheat stubble sweet potatoes.

Zhu Youxiao said: "This sweet potato grows very well in the north, spring sweet potatoes can harvest 3,000 catties per mu, and wheat stubble sweet potatoes can harvest up to 8,000 catties per mu, which is enough for many people to eat." In addition, wheat stubble sweet potatoes can be rubbed into sweet potato chips, then dried, and can be preserved and eaten all year round. Each family of five people can eat two acres of sweet potatoes for half a year, and the people have surplus food at home, and they are not panicked, will they still rebel with their heads? ”

Then there are how tomatoes are planted, how to be used as vegetables to supplement non-staple food, how carrots bloom in spring and harvest seeds, and planted in Futian, which can be eaten as vegetables or staple foods in winter. How potatoes survive their dormant period, how to prevent pests and diseases, how to cultivate high yields, and so on.

Zhu Youxiao is undoubtedly very happy to be able to talk to the best geniuses of this era, and they have extremely high talent for understanding and learning. Zhu Youxiao asked them to sort out the contents of this conversation, and said that they should not record that these conversations were all told by him, so as not to surprise the world, and said that this was the result of discussion, research, and debate by everyone at the scene. These materials are then compiled into teaching materials, which can then be used in the technical school that will open next year.

Zhu Youxiao said: "I want to open a technical school next year, and Mr. Xu will be the executive vice president of this school, which teaches all the technologies that we can apply now, whether it is agriculture, industry, commerce, or arithmetic, production of strange skills, are the courses we teach, and several people on the scene are future teachers." In addition, we have to hire many teachers, including skilled missionaries who know a lot of things we don't know. However, Lord Xu should pay attention to the fact that those who are not of our race will have different hearts, and all things involving military affairs must not be allowed to be contacted by Westerners, and we will set up a separate branch of military science and technology. Some of these people are smart, and if we bring our advanced technology back to China, it will bring us great trouble.

"In addition, Lord Xu, let Sun Yuanhua go to Laiyang, Shandong Province to find a black and smooth stone thing, that kind of thing is called graphite, grind it and add some other desiccant and the like, make it into blocks, and then cut it into thin strips, wrap it in small round wooden strips to write on paper, this thing is convenient and easy to carry, and the writing speed is very fast, which is very suitable for children, and there is the use of beeswax and some additives to make colored crayons, Use lime to add accessories to make chalk, etc. My next step will be to promote a national literacy campaign, so that in the future, all children in our country will have to go to school at the age of six, and pens and paper will be provided by the state for free for five years, depending on the development.

"There is also the promotion of simplified words in cursive, such as the word 'Wan', which is written in cursive as '10,000', which is easy to write and easy to recognize, and selects more of these words to replace the current complex writing method to facilitate children's literacy. For the convenience of learning, you can also learn Western with punctuation, for example, if a sentence is not finished, use '' in the middle of the pause, '' is separated, and it is used when it is finished'. 'Separated, called comma, period. Expressing doubts with '? 'No., called the question mark, aggravates the use of feelings'! It's called an exclamation point. Indicating punctuation is less likely to be misleading. Secondly, if you know Western, you can consider first marking the Western language with simple Chinese character pronunciation, then dividing it into initials and finals, and then spelling Chinese characters in reverse. Because the Western alphabet is simple and easy to remember, for example, 'a' and 'b' are pronounced as 'ah' and 'wave', then 'dad' can be spelled as "ba", and so on. Then there are the numbers 'one, two, three, four, wu, lu, qi, 捌, jiu, pick', you can use 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, to replace the usual calculation, simple and convenient, extremely fast. All in all, as long as it's easy to use on a daily basis. Choose your students to teach first and then start rolling out from technical schools so that there won't be much resistance. In later history, this conversation was called the "Imperial Innovation."