Chapter 561: The Pendulum Clock of the Year
Zhang Yang hugged his daughter, looked at Li Tai and said to her, "Call uncle." ”
She glanced at Li Tai first, then turned around and walked away.
Seeing that he was still embarrassed, Zhang Yang smiled: "The child is still young, I will slowly teach her to recognize people." ”
In fact, this girl doesn't look at her as only one year old, but she has been taught very shrewdly, as long as the imperial grandfather gives her a bite of delicious food, she will also call her grandfather obediently, Li Tai stood up and patted the weeds on his clothes, "I don't know how the acres of land in Lantian County are cultivated, I'll go over and take a look." ”
Today is the day when the Turks and Gaochang sent money, Zhang Yang walked home and looked at the account book, and sold 16,000 stone of grain in the Western Regions.
Among them, there are Persian and Tianzhu involved.
Professional things are to find professional people, and there is no miss in this direction.
An Yanyan, a dealer in the Western Regions, has a lot of business contacts, and these connections are resources, and they are also a kind of buying and selling channel.
This man is very good at doing things, which is what he is good at.
Li Yue frowned and said, "Counting the grain that the Gaochang people sold idly in the Hexi Corridor, so far, 35,000 stones have been sold. ”
A total of 4,800 guan was recorded, 50% of the Lishan business was counted, and 20% of the taxes were counted, and 3,500 guan were entered, of which 1,300 were handed over to the DPRK.
Millions of stone grains were sold, when will this be sold out, how cruel the reality is unacceptable, Zhang Yang plans to discuss with the emperor again to make wine to sell this matter.
Li Yue took out another account book and handed it to Aunt Wang on the side, "Trouble Aunt to hand over this account book to the court." ”
"Whoa."
"The mutual market in the Hexi Corridor is still very reluctant." Zhang Yang pondered that after the Silk Road was stabilized, more and more people from the Western Regions entered Guanzhong, and now it has only been two years since the Western Regions were pacified.
It is necessary to improve the influence of the Hexi Corridor, Zhang Yang thought of the Tiankhan Avenue, and there are many post houses on the main road from the Tianshan Mountains to the Hexi Corridor.
These inns are the best publicity points to raise the profile of the Hexi Corridor.
Once you've found a way, the rest of the work can be laid out.
Zhang Yang wrote a letter and handed it to Aunt Wang, who was about to leave, "Trouble Aunt Smoothly hand over this letter to Zhang Daxiang of the Foreign Affairs Academy." ”
"Whoa."
Li Yue put down the pen and rubbed his tired eyes.
Zhang Yang also put down his pen, "My daughter-in-law has worked hard." ”
Xiao Wu and Xu Hui washed the little bears and put them all in the yard.
In Xu Hui's cognition, women should be housekeepers, but following the teacher to learn art, the appearance of a woman has become different.
The teacher often helps the master in the affairs of the court, and he also runs Lishan, and many men should do the big things, and the teacher can also do it.
The teacher is a good helper of the master, and the husband and wife can complement each other better.
Li Yue looked sideways at her daughter, she was building blocks, putting a triangular wooden block on the top of the building block house, and grinning, as if she was very proud.
"It's all for the family, there's nothing hard work."
As long as I watch my daughter grow up day by day, the tiredness in my heart will be dissolved.
"Your father has reorganized the soldiers and horses, and 600,000 soldiers and horses in the world is not a small number."
"Is this all what the blue finch said?"
Zhang Yang nodded when he heard this: "Your father's decree is promulgated this time, which will deter many people, Mr. Wang Jue said that the situation in Luoyang is tense, and there is a gate general named Chen Guoren who has 30,000 troops and wants to attack Luoyang and rescue those children of the family." ”
"It seems that my father's move is to deter this kind of person, even if they dare to attack Luoyang, the war will be extinguished overnight." Li Yue was still a little worried, "The name of my father's Heavenly Khan will only make the family even more intolerable." ”
"The eldest grandson Wuji still wants to maneuver, and he has been entertaining guests these days of the New Year, that is, lobbying the gentry from all over the world."
Xiao Wu and Xu Hui sat under the eaves, the two of them were sharing raisins to eat, and they listened to the teacher and master in the room talking about the major events of the family and the country and the situation in the DPRK and China.
For the two of them, it was not uncommon for the teacher and the master to discuss such things.
Different from ordinary couples, the teacher and his wife occasionally quarrel over trivial matters at home, just like two days ago when the master wanted to build another place called a septic tank, the teacher refused to agree to anything.
Counsel more about state affairs than about family matters.
The two disciples can learn about the situation in the court from the teachers and masters, and they have already understood what the court is going to do now, and even what the future plans are.
Xu Hui heard her father say that these things were not even clear to him, the imperial history.
It has been proved several times that the teacher and the master's estimate of the future is correct, and the master said that the Yinan Khan will bring Xue Yantuo's coal mine to the Tang Dynasty.
And now Xue Yantuo's coal mine is indeed on the way.
Xu Hui held her chin in her hand and watched the sun in the blue sky hide in the clouds again, and the wind was a little colder at this moment.
"Senior sister, Xiao Qingqing is so smart." Xiao Wu looked at the house, and Xiao Qingqing completed the construction of a small house with building blocks alone.
Xu Hui clasped her hands in front of her chest, "Well, her eyebrows and eyes are exactly the same as Master's." ”
Xiao Wu nodded solemnly, "Well, especially when eating." ”
"Yes!" Xu Hui whispered: "Master always eats in his mouth, with a piece of meat on his chopsticks, and his eyes are still looking at another dish. ”
The two little girls chuckled in agreement.
Aunt Yang, who was sweeping the yard on the side, coughed lightly, and the two girls retracted their gaze, and the voice of the whispering just now was a little loud, and the aunt heard the secret discussion of the teacher.
The two got up from their little stools and hurried back into the house, where they prepared to continue whispering.
Zhang Yang carried a bundle of planks on his shoulders and walked up to Lishan, intending to lay the floor in his new house.
The floor of the new house was laid, and Zhang Yang installed the windows again.
The windows are just wooden windows, and when the glass is fired, the glass will be used to make the window, so that the light transmission will be better.
The daughter-in-law opposed this plan again and again, and Zhang Yang decided to cut it first now, even if it failed, and then make plans later.
The simple furniture was placed in the main house of the new home, and the two side rooms on the side of Huaqing Pool were prepared for Xiao Wu and Xu Hui.
The two aunts lived in a side room to the right of the main house.
From rebuilding the canal and drainage, to the current all kinds of furniture, it has been busy from the wax moon to the present.
When the spring rain arrives this year, drench your new home and walk through the water to see the situation, and if it is suitable, you can live.
Zhang Yang's eyes swept over the courtyard surrounding Huaqing Pond, where several birds stood among the treetops of the mountain forest and called.
There are still many places that are not perfect, so stay here and plan slowly.
Picking up the heavy bamboo basket again, Zhang Yang carried a bamboo basket of tools down the mountain.
Li Yuan rode the bear to the foot of the mountain when he had nothing to do, the bear was so big, and the half-human-tall bear was still locked up in Chang'an City, which was too aggrieved.
The village of Lishan can allow him to have enough land to spread wild, and by the way, he will be the king of beasts here.
In the mountains and forests, in the fields, chasing dogs and chickens, claiming the king and hegemony.
It looked like it had just come back from plowing the land, and there was a lot of mud on the soles of its feet.
Every time it ploughs the field, the villagers give it a radish to eat, and it's quite enthusiastic.
Zhang Yang looked at Xiong, and Li Yuan looked at the clothes of this grandson-in-law, with dissatisfaction in his eyes, "What's the matter with your clothes." ”
"I'm an apron, and I'm using it for carpentry."
"And what's up your sleeve?"
"It's called a sleeve." Zhang Yang shook the cotton gloves on his hands, "These are gloves, so that you won't hurt your hands when you do work, these are popularized in our factory, and they are regarded as work clothes." ”
Li Yuan rode the bear and sat upright, "Then what are you wearing on your head?" ”
Zhang Yang took off his hat, and the long hair that was originally coiled in the hat also came down, "I made my own hat, if you like me to make three or two more, it won't be troublesome." ”
When he walked in front of him, Li Yuan saw a lot of wood chips stuck to his hat, and immediately understood that if these wood chips were stuck to his hair, it would be difficult to clean.
He got off the bear's back with one leg and said, "I heard that you asked the slave to send a drawing to the Ministry of Works?" ”
Zhang Yang walked all the way home, and Li Yuan followed.
The bear was tired enough from ploughing the ground, and he followed suit.
"I heard that thing is very complicated to make, and the Ministry of Industry is racking its brains up and down, but this is just a tool for children to play, and there are already a lot of impeachment voices in the DPRK, saying that Qingque used the material resources of the DPRK and China for a momentary fun."
Zhang Yang stopped listening to these words, "Actually, this is all for learning. ”
"The DPRK and China don't look at whether it is for the sake of learning, and the material resources used by the DPRK and China are bound to be noticed."
Watching Li Yuan leave, Zhang Yang stood in place and pondered, from the perspective of the court, the things created involved the material resources of the court, not to mention how valuable this thing is, first to report the prince's behavior, and find out the culprit.
It's really tired to teach the baby, and laugh to death on the sidelines......
Zhang Yang took the bear home, and he couldn't put the conservation theorem into everyone's mind, and any advanced ideas were incomprehensible to them.
Carrying the bucket at home, Zhang Yang washed the bear's hair, took out a brush, and it opened its mouth very consciously, waiting to brush its teeth.
Rubbing it with coarse salt on the brush, Zhang Yang picked its mouth and brushed its teeth carefully, "I'm doing it for their good, but they think I'm harming a child." ”
The bear didn't react, it didn't move when he brushed his teeth, and he still couldn't understand much human speech.
"Maybe this matter was impeached by Xu Xiaode and them." Zhang Yang was very distressed, and brushed his teeth a little harder.
Make sure that all the corners of the tooth are brushed, and then rinse it with water.
After brushing his teeth, the bear lay comfortably on the ground.
A group of cubs approached it, babbling and seeking reassurance from the bear.
There was a little milk bear who tried to climb on his back and was kicked away by it, and then the little milk bear insisted on climbing up.
This was repeated several times, and the bear let them lie on top of him again.
For him, these little bears are here to compete for delicious food.
Especially when they are eating, they eat a lot.
Even Xiao Wu and Xiao Hui's love for these little milk bears is more than it, which is the source of unhappiness.
The family bear should be in harmony, but the bear doesn't think much about it.
After dinner, Zhang Yang sat at home and was still drawing.
Li Yue was curious: "Is this new furniture?" ”
"It's a pendulum clock."
"Pendulum clock?"
"A tool for keeping time." Zhang Yang explained: "Since we have mastered the algorithm of the twelve hours, we can use the algorithm of the twelve hours to make a corresponding clock. ”
"Hours, Clocks......"
"There are twelve hours in the day that distinguish day from night, and divide the twelve hours into twenty-four hours, so that one walk during the day and another circle at night is twenty hours, which is twelve hours."
Li Yue frowned and looked, "Every hour passes, you go to move the pointer?" ”
The disc drawn does have two hands on it.
"I heard your imperial grandfather say that someone in the court impeached the childish slave, just because I asked him to study magnetism, I thought about it carefully, the knowledge taught to my younger brothers and sisters is too advanced, people will always have some resistance to things that cannot be understood, and this clock can make them understand and be useful."
"The husband wants to use this to block their impeachment words."
Zhang Yang put down his pen and hugged her thin waist, "We should celebrate that Datang has a pendulum clock." ”
"How do you use this pendulum clock?"
Just looking at the drawings, I can't see a reason, Li Yue asked curiously.
Zhang Yang said in a low voice: "What is the constant and unchanging quantity in this world? ”
"Barometric pressure, gravity ......"
"That's right! Gravity. Zhang Yang picked up a sandbag and let it fall from his hand, "The gravitational force of a single object is conserved, that is to say, the force that can be generated is also constant, and the resulting descent process is called potential energy." ”
"We can harness the potential energy and transfer it to the gears, and we can use the gears to drive the pendulum clock."
The description of the process is a bit complicated, and she has studied some physics and has a hard time understanding it at the moment.
Mathematics is what she is good at, but physics is her shortcoming.
Normally, in science, many of the logical ways of thinking in mathematics are basically the same as those in physics.
The daughter-in-law's shortcomings are very strange, and she has a good foundation in mathematics, and it is very difficult for her to master physics.
Everyone will encounter shortcomings in the process of learning, and they will also discover their strengths.
This is related to long-term study habits, it takes time to make up for shortcomings, it takes more energy and perseverance, and now she runs such a big family business, she is no longer as energetic as when she was a child, and Lishan's accounts alone make her have no time to take care of other things.
As long as you understand the relationship between mechanics, it is not difficult to make a pendulum clock, which is just a new topic for children in the New Year.
If you make sure that the distance of each swing of the pendulum is the same, you can set a good time from it, and the force of gravity is the same.
Zhang Yang opened his mouth to take a dried fruit handed by his daughter-in-law, and said in a low voice: "In the past, my teacher taught us the calculation formula of the single pendulum, and in order to let us understand better, he made a handmade pendulum clock in front of us. ”
"And then?" Li Yue said curiously.
"Later, we had a better clock, and the pendulum clock was broken, but no one repaired it, so I secretly brought it home and wanted to fix it, but the more it was repaired, the worse it became, and finally it was burned by my parents as firewood, and I never admitted that I took the bad pendulum clock in the class."
Zhang Yang suddenly laughed as he spoke.
"At that time, my husband was still very young."
"At that time, I was in the fifth grade of primary school, and if I really want to say that I am still young, I am not small, but I am reluctant."
Zhang Yang hugged his daughter-in-law sitting on his lap, with a sense of loss in his words, "I think that I will do it again at this moment, just to make up for the things of the year, and to talk about the comfort in my heart, but unfortunately my teacher can no longer see it." ”