Li Yuanjia put a lot of thought into preparing the gift for his grandnephew.
He definitely couldn't make diapers or something like that. After all, the technical requirements for that thing were too high. Even if he was given ten years, he probably wouldn't be able to make it. Moreover, this was the grandson of the Emperor of the Tang Dynasty, and he usually used it.
Most diapers are probably made of silk, so who cares about using paper?
As for milk bottles, pacifiers and milk powder, they are not worth mentioning. Let alone the royal family. These days, the big nobles use real wet nurses to raise their children. If one is not enough, they will use two, and if two are not enough, they will use three. It is all natural and natural.
It is a public hazard, and it also comes with a bonus of immunity...
So after much deliberation, Li Yuanjia could only "design" some fun gadgets.
For example, the cradle is erected with a bracket, and the simplest version of the stroller has a small mechanism that can change from lying to sitting. It can also be hung on the bed to attract children's attention and exercise their hearing and
The wind chimes of vision...
Chen Mu, the little carpenter at home, is getting better and better at his craftsmanship.
If it weren't for the fact that it takes too much time to make these gadgets, and the market capacity in Chang'an is really limited these days, Li Yuanjia even had the intention of letting him go out and open a small shop. However, after considering the influence of various factors, he considered
After he became accustomed to using this guy on a daily basis, Li Yuanjia finally gave up the idea.
only……
On the penultimate day of the end of the month, after returning from the Daxing Palace to go to court, when he was thinking about what to bring for a spring outing tomorrow, Chen Mu walked in excitedly under the leadership of the housekeeper.
"Your Majesty, we have made it!"
"……What's the meaning?"
The somewhat careless Li Yuanjia was stunned when he heard Chen Mu's voice, and blinked subconsciously: "What happened? What did I ask you to do?"
"Waterwheel, Your Majesty!"
Seeing Li Yuanjia's unable to remember anything, Chen Mu suddenly became anxious: "When we were in Luzhou a few years ago, didn't you ask us to make those two types of waterwheels together? It took several years.
, we finally made it!”
"Waterwheel? That's right!"
After hearing what Chen Mu said, Li Yuanjia slapped his thigh and immediately remembered.
Indeed, there is such a thing!
After arriving in Luzhou that year, Li Yuanjia once thought of the kind of waterwheel often seen on TV and movies. It does not need human power to drive it. The power of the river water can make it turn by itself, and then send the river water to the shore little by little. And the other one
The first step was to let Chen Mu modify and perfect the existing overturned waterwheels in this era. The water wheel driven by human power was the kind of thing where two people stood on it and stepped on it to pump water out of the river.
In order to get these two gadgets, Li Yuanjia specially asked Han Shan and others to find a carpenter who could build overturned cars.
But unknowingly, a few years passed and he forgot about it.
So when Chen Mu just came over today, Li Yuanjia was stunned for a moment, and then he reacted. Then, naturally he was surprised and delighted, and stood up from his chair: "Did he make a real thing or something?"
Model? Where is it?”
"Back to your Majesty, the barrel cart is just a model."
Under Li Yuanjia's "dundun teaching", now Chen Mu also knew the meaning of the model, and naturally he immediately replied: "If it is made in real form, it will be too big, time-consuming and too long, so we haven't started yet...
But we have already made the actual keel waterwheel, and it is in the farm outside the city."
The barrel cart can actually be large or small, depending on the needs, but no matter how small the actual barrel cart is, it is still a big project for several carpenters, so Chen Mu and the others have been trial-producing smaller versions of the model. Now it is not easy.
After the success, he immediately came to announce the good news to Li Yuanjia. Naturally, the actual work had not even started yet.
"good very good!"
Smashing his right fist against his left palm, Li Yuanjia laughed and said, "You go back first. I'll go see what you've done early tomorrow morning!"
"Yes, Your Majesty."
Seeing that Li Yuanjia attached so much importance to this matter, Chen Mu naturally left happily. He knew that once the king was satisfied with the waterwheel made by a few of them, a generous reward would definitely be indispensable.
"call……"
After Chen Mu happily returned, Li Yuanjia let out a long breath and felt really happy.
The successful research on these two types of waterwheels comes at the right time.
Although he almost forgot about the thing he asked Chen Mu and the others to study, now that it was successful, Li Yuanjia immediately remembered his original plan: with the Quyuan plow, an epoch-making agricultural tool that can greatly reduce labor, and with the light and simple
waterwheel, the combination of the two will have an immeasurable impact on the agriculture of Datang.
In fact, after Quyuanli appeared, Li Yuanjia had already discovered its limitations.
It is obvious that the Tang Dynasty is vast and sparsely populated, and more land can be reclaimed under the same conditions using the curved-wheel plow. However, because there are not enough irrigation facilities, a lot of land far away from water sources is still barren. And this is the situation that makes
The role of the curved shaft plow simply cannot be brought into full play.
If these two types of waterwheels were really simpler and easier to build...
"In fifty years, how much new farmland will be added to the Tang Dynasty?"
With his heart surging, Li Yuanjia couldn't help but get up and walk outside the door, looking at the distant sky. In fact, he now understood that in this era of extremely backward productivity and extremely poor communication, any good thing
In fact, its role must be discounted.
Just like the Quyuan plow, after such a good thing appears, where can it be promoted now?
Not to mention the corners of the Tang Dynasty's territory, even under the state capitals of the Central Plains states, many farmers had never even seen it. Moreover, the imperial court made great efforts to promote this, and each state and county sent a
In the case of drawings.
The waterwheel is much more complicated than the curved shaft plow.
Carpenters in this era would have to master the skills of making a waterwheel. It would take only a few years to even think about it. And to make a waterwheel, Chen Mu and the others would have to work for a month!
Therefore, when Li Yuanjia thinks about problems now, he always starts in ten years, and the impact of things like waterwheels must be considered in fifty-year units.
and……
"well!"
After looking at the blue sky for a while, Li Yuanjia couldn't help but smiled bitterly and shook his head.
After a short period of joy, he was soon filled with melancholy.
Regardless of the keel waterwheel or the barrel wheel, the structure is actually not too complicated. After all, how difficult can it be to use something that could be used in ancient China? Moreover, these things actually already existed in the Tang Dynasty, or in other words, they were already in existence.
With a prototype in hand, the two carpenters specially found by Han Shan had quite a lot of experience with it. But even in this situation, and with the detailed pictures that Li Yuanjia personally drew based on his memory, the group still spent several years.
I just made a model...
The low efficiency and the difficulty of the process are really outrageous!
So after being depressed for a while, Li Yuanjia secretly made up his mind: "In the long run, we still need to cultivate a group of real talents from an early age..."