Li Zexuan had always wanted to set up units and standards for new physical quantities. In addition to these, Li Zexuan also planned to let Yanhuang College set the standards for new technologies in the future.
In Li Zexuan's previous life, a certain superpower had launched a trade war using technology as the vanguard in order to curb the rise of China. Some international organizations and technical standards committees had wanted to kick out China's outstanding companies in an attempt to cause China's high-tech industry to collapse. At that time, although Li Zexuan was angry, his words carried little weight and his ability was limited. But in this life, Li Zexuan had the ability and status. He had to push China's technological development and let China's technological strength stand at the top of the world!
Maybe his generation couldn't do it, but he could lay a solid foundation for future generations.
This was why Li Zexuan was so busy and tired when he could just eat and wait to die for the rest of his life!
Not only did he want to build a military power, but he also wanted to build a technological power!!
"Yamachō, are these ammeters and voltmeters specifically used to measure current and voltage?"
Li Tai asked in surprise after hearing about Li Zexuan's third trump card project.
Li Zexuan nodded and said, "That's right! Any physical quantity must have a measurement scale and a quantitative measurement tool. In the future, if we want to develop more precise and complex integrated circuits, it's impossible without an ammeter and voltmeter! In addition, we also need to make instruments specifically used to measure electrical resistance! So, Qingque, we have a heavy responsibility on our shoulders! "
Li Tai nodded in agreement, then he frowned and said, "But Yamachō, how am I going to make an ammeter and voltmeter?"
Li Zexuan knew that it would be difficult for a child who had only been exposed to electricity for less than a year to make an ammeter and voltmeter. So, he picked up a pen and drew a sketch on rice paper and said,
"Look, Green Sparrow! We can use the principle of electromagnetic induction to make an ammeter. When an electric current passes through, the electric current passes through the magnetic field along the spring and the rotating shaft. The electric current cuts the magnetic induction wire, so under the effect of the magnetic field, the coil is deflected, driving the rotating shaft and the pointer to deflect.
Since the magnitude of the magnetic field force increased with the increase of the current, the magnitude of the current could be observed through the degree of deflection of the pointer. As for the voltmeter, we can use the above principle to get the current, then connect a resistor with a known resistance, and multiply the current by the resistor to get the voltage scale! "
The ammeter that Li Zexuan was talking about was called a magnetoelectric ammeter. It was the kind that was often used in modern school laboratories.
Li Tai nodded his head as he listened. After a short pause, the little fatty asked, "Mountain Leader, where do we get this resistor with a known resistance value?"
Li Zexuan was stumped by this question. If they were in modern times, wouldn't it be a piece of cake for him to make a resistor with a known value? He could get as many as he wanted, but this was ancient times. Most people in this era didn't even know what a resistor was. Where would he get a resistor with a known value?
After pondering for a long time, Li Zexuan finally said, "Since we don't have a resistor with a known value, let's set our own standard. Let the workshop forge a steel block that is one inch in length, width, and height, and use it as a standard resistor of one Ohm to make a voltmeter! With a voltmeter and an ammeter, we can measure the resistance of all devices ~! "
In the end, it was still a matter of standards. There were many standards in this era that didn't exist, so he could only create standards. Otherwise, there would be a lot of follow-up work that couldn't be done ~!
Li Tai heard this and said with deep admiration, "Yamachō is wise!"
Li Zexuan smiled and said, "Qingque, you will probably encounter many similar problems in the future. You must diverge your thinking, have the courage to think, and have the courage to do. Otherwise, you will never be able to surpass me in the future, because you learned all your knowledge from me. Only by having the courage to forge ahead will you be able to surpass me!"
This guy was painting a pie in the sky for Li Tai again. To be honest, even if Li Tai was a celestial being, even if Li Tai worked hard, he would still never be able to surpass Li Zexuan in engineering. Even if there was a chance, the probability was only 0.001%!
After all, this guy's brain contained hundreds of years of engineering knowledge, the crystallization of more than ten generations of knowledge. How could Li Tai surpass him?
However, Li Tai definitely didn't know this. This poor kid was nodding energetically and said, "Tai will remember Yamachō's teachings!"
Li Zexuan nodded with a gratified expression and said, "En! Go ~! "
Li Tai stood up and saluted Li Zexuan, then turned around and left in high spirits!
"Tsk tsk! No wonder the teachers in my previous life liked to give their students chicken soup for the soul, because it really works ~! "
Li Zexuan sighed softly as he watched Li Tai leave with his head held high.
If Li Tai heard this, he would definitely vomit blood!
…
"Faubert, I'll have to trouble you to arrange for someone to make something for me ~!"
After helping Li Tai, Li Zexuan came to Faubert's office and said.
"Young Master, what do you want to make?"
Faubert stood up and asked with a smile.
Li Zexuan took out a stack of blueprints and said embarrassedly, "Faubert, the thing I want to make this time is more complicated. Take a look at it first. If there's anything you don't understand, I'll explain it to you later ~!"
Faubert nodded and then immersed himself in the blueprints.
After a while, the surprise on Faubert's face became more and more obvious. After looking at the last blueprint, Faubert couldn't help but ask, "Young Master, you want to make a car?"
Li Zexuan nodded and praised, "Faubert has good eyesight! That's right, I want to make a car! "
Faubert frowned and said, "But what kind of car is this? Why does it look bigger than a horse carriage? "
Li Zexuan replied with a smile, "I call it an electric car. The principle is similar to an electric bicycle. It uses a battery and an electric motor to drive the wheels to achieve the purpose of fast travel. It's just that this electric car is bigger, can carry more people, and needs more electricity!"
Faubert paused and said doubtfully, "Young Master's idea is good, but this way, the car will become heavier. If it carries more people, I'm afraid it will be difficult to drive the car!"
Li Zexuan shook his head and said, "Faubert, you don't have to worry about this. The electric motor of this electric car is definitely different from that of an electric bicycle. It has more power and traction. You just have to arrange people to make it according to the blueprints. You can ask Qingque or me about the parts related to electricity! But you must remember to keep it a secret from Shaoning and Ink Girl! "
Hearing this, Faubert asked curiously, "Young Master, why is that?"
Li Zexuan smiled and said, "Faubert, this car is my wedding gift to Shaoning and Ink Girl. I plan to give them a surprise when the time comes!"
No matter what, Yan Shaoning was still his good brother. His good brother's wedding gift definitely couldn't be shabby, so Li Zexuan came up with this idea.
Faubert heard it and understood. He nodded and said, "I see! Young Master, don't worry. I will arrange for people to make the car for you and keep it a secret! "
Faubert's old face was full of gratification. Yan Shaoning and Li Zexuan, one was his current boss and the other was his former boss. Faubert had always had deep feelings for the Yan and Li families. Since Li Zexuan was so concerned about Yan Shaoning's marriage, it proved that Li Zexuan really saw Yan Shaoning as a brother. Of course, Faubert was happy!
At the same time, Uncle Fu became more and more attentive to the car-building matters that Li Zexuan had instructed him to do. He secretly told himself that he had to be 120% alert and keep an eye on the people below to build the car-building properly!
… … …
"Ke 'er, I heard that countless people flocked to the Yanhuang Bank to save money today. I wonder if you can still handle it over there? Do you want Father to send more people to help you? "
In the evening, Li Ke was unexpectedly summoned back to the palace by Li Er. After dinner, Li Er began to show concern for Li Ke's daily work.
Li Ke was flattered. He cupped his hands and said, "Thank you for your concern, Father. However, I can handle the bank. Yamachō told me this afternoon that he wants to recruit a group of guards for the Yanhuang Bank. After all, there is too much money in the bank. If there are criminals coveting it, the loss will be too great!"
Li Er nodded thoughtfully and said, "Yes! Marquis Yong 'an's arrangement is very appropriate. Let's do as he says! Father, I won't do anything unnecessary! "
"Father, what are you saying? Yamachō and I are already grateful that you can personally inquire about the bank's affairs!"
Li Ke quickly cupped his hands and said.
Although these words were somewhat flattering, they were also somewhat sincere. After all, Li Er didn't ask about the bank's affairs before.
"Haha! Don't flatter Father. I'm already tired of hearing such words! "
Li Er waved his hand and said with a smile. Then he asked again:
"Ke 'er, now that the people are flocking to the Yanhuang Bank, wanting to save money to earn interest, can the Yanhuang Bank take in so much money? When the time comes, can we pay off the promised interest to the people? Originally, the free exchange of Tang yuan for the commoners was already an act of the bank to give up on profits for the sake of the commoners. Now, not only is the bank not collecting the money for the commoners, but it is also giving them interest. In the long run, won't the Yanhuang Bank be unable to make ends meet? "
Li Ke pondered for a moment and said, "Father, the Yanhuang Bank will definitely not lose money! The annual interest rate we give the citizens is 1.75%, and the annual interest rate for lending money to the merchants is 8%. If we can borrow 100 strings of coins from the citizens to the merchants, then the Yanhuang Bank can earn 6.25 strings of coins a year with these 100 strings of coins!
One thing that can't be ignored is that the 100 strings of coins didn't originally belong to us, but to the people who came to save money. In other words, our bank doesn't use any capital and can earn 6.25 strings of coins a year from the people's 100 strings of coins. This is a business without any capital, and the profits are not low at all! Where else can we find such a business? How can our bank lose money? "
Modern banks had many types of business income, including the interest rate difference between deposits and loans, commission fees, commission fees, investment income, etc. But the most important thing was still the interest rate difference between deposits and loans. This was the foundation of the bank. Similarly, today's Yanhuang Bank's most important way of making profits was the interest rate difference between deposits and loans!
When Li Er heard this, he nodded thoughtfully. Then he asked, "What you said just now makes some sense. But if there are too many people who come to save money, and the merchants who come to the Yanhuang Bank to borrow money are not enough to support such a large amount of savings, for example, if the people save 100 strings of coins, and the bank only lends out 100 strings of coins, then wouldn't the Yanhuang Bank still suffer a loss?"
To be able to say this, it proved that Li Er had done his homework. Otherwise, he wouldn't have asked such a sharp question.
Li Ke couldn't help but laugh, "Father, you don't have to worry about this! The reason why this policy of saving money for interest was first tested in Lantian County is mainly because the merchants in Lantian County are very active. All kinds of shops, big and small, have sprung up like bamboo shoots after the rain, appearing in the market of Lantian County. The merchants in the surrounding counties came and went. Under such circumstances, the merchants in Lantian County naturally have a higher demand for money than the merchants in other places!
At the end of every month, the Yanhuang Bank in Lantian County would have a shortage of money. Now that the people are actively saving money, the bank probably won't have a shortage of money in the future. This is very beneficial to the expansion of the bank's business. Before this, I have carefully calculated with the bank's staff. According to the current business situation of the bank, as long as the deposits are less than 500,000 strings of coins, we definitely won't lose money, and will even make a big profit! "
"Oh? Ke 'er, you're so confident? "
Li Er couldn't help but ask with a smile.
Li Ke replied, "Of course. Imperial Father, don't forget, although the interest rate of our bank's loans is higher than the deposit interest rate, compared to the other large families that lend money, the interest rate that our bank charges for loans from merchants is as low as it can be. Just based on this point, as long as the merchants lack money, they will definitely come to our Yanhuang Bank to borrow money. Therefore, we don't have to worry about whether we will lose money or not! "
"Oh, the annual interest rate of the Yanhuang Bank in Lantian County is only 8%. Compared to the loans of the people, the interest rate is really low!"
Li Er had some understanding of the affairs of the people and nodded.
This 8% annual interest rate may be a little scary in the eyes of the modern people, but to the ancient people, this interest rate was simply too cheap! In this era, a monthly interest rate of 10% could be called the "conscience of the industry". With a monthly interest rate of 10%, the annual interest rate would be over a hundred. It was a little too expensive!
Especially during the Sui and Tang Dynasties, the imperial court set up a special fund called the "Public Capital" for official loans. Its function was a little similar to a modern day bank. The Public Capital was managed by the various prefectures. Lending out 50,000 yuan, the monthly interest rate was 4,000 coins, and the annual interest rate was about 100%.
Therefore, the interest rate of the Yanhuang Bank was simply a "blessing from the heavens" to the merchants who lacked money!
…
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