Otaku Engineer in Great Tang Dynasty Chapter 1449: Chicken soup, inquiries from Li 2! (Happy Dragon Boat Festival!…

To formulate units and standards for some new physical quantities, this is what Li Zexuan has always wanted to do. In addition to these, Li Zexuan plans to let Yanhuang Academy do the standard formulation of some new technologies in the future.

Recalling past lives, in order to contain the rise of China, a certain superpower launched a trade war with science and technology warfare as the vanguard. Some international societies and technical standards committees have kicked out outstanding enterprises of the motherland in an attempt to make the motherland's high-tech The industry collapsed. At that time, although Li Zexuan was angry, others were light-hearted and his ability was limited. However, in this life, Li Zexuan has the ability and more status, and he needs to promote the development of China's science and technology and let China's scientific and technological strength stand in the world. The top!

Maybe his generation can't do it, but he can lay a solid foundation for future generations.

This is why Li Zexuan can obviously eat and wait for death for a lifetime, but he has to be busy and exhausted!

He not only wants to build a military power, but also a technological power! !

"Shanchang, are these ammeters and voltmeters specially used to measure current and voltage?"

Li Tai asked suspiciously after hearing Li Zexuan's third killer project.

Li Zexuan nodded and said: "Yes! Any physical quantity must have a measurement scale and a quantitative measurement tool. In the future, we must develop more precise and cumbersome integrated circuits. There is no ammeter or voltmeter. It's impossible! In addition, we need to make a meter specifically for measuring resistance! So, Green Bird, we have a heavy burden on us!"

Li Tai nodded in sympathy, then he frowned and said, "But Shan Chang, how should I make an ammeter and a voltmeter?"

Li Zexuan knew that it was a bit embarrassing to let a child who had just been in the field of electricity for less than a year to make ammeters and voltmeters, so he took a pen and drew a sketch on rice paper, and said something:

"Here, Qingque, look! We can use the principle of electromagnetic induction to make an ammeter. When there is current passing through, the current passes through the magnetic field along the spring and the rotating shaft, and the current cuts the magnetic line of induction, so it is affected by the force of the magnetic field. , Make the coil deflection, drive the shaft and pointer deflection.

Since the magnitude of the magnetic field force increases with the increase of the current, the magnitude of the current can be observed by the degree of deflection of the pointer. As for the voltmeter, we can get the current through the above principles, and then connect a resistor with a known resistance in series, and multiply the current by the resistor's output voltage scale! "

The ammeter Li Zexuan said is called a magnetoelectric ammeter, which is often used in modern school laboratories.

Li Tai nodded frequently when he listened. After a while, the little fat man asked: "Shanchang, where did we get this resistor with known resistance?"

This question has stumped Li Zexuan. If it is in modern times, would you let him get a resistor with a known resistance, wouldn't it be easy? He can get as much as he wants, but this is in ancient times. Most people in this era don't even know what resistors are. Where do you ask him to get some resistors of known resistance?

After pondering for a long time, Li Zexuan finally said: “Since we don’t have a resistor with a known resistance, we should set a standard for ourselves and let the workshop forge a steel block of one inch in length, width and height, and use it as a Standard resistance in Europe to make a voltmeter! With the voltmeter and ammeter, we can measure the resistance of all devices~!"

Speaking of which, it is still a matter of standards. In this era, there are many standards. Then he can only create standards, otherwise many follow-up work will not be able to continue~!

Li Tai heard the words, deeply admired and said: "The mountain is long and wise!"

Li Zexuan smiled and said: "Qing Que, you should encounter many similar problems later. You must think divergently, dare to think, and dare to do, otherwise your future achievements will never exceed being a teacher, because Your knowledge is all learned from me. Only if you dare to forge ahead, can you surpass me!"

This guy is drawing pie for Li Tai again. To tell the truth, even if Li Tai looks like a human being, even if Li Tai works hard, he will not be able to surpass Li Zexuan in engineering for the rest of his life. Even if there is a chance, the chance is only per cent. Zero zero zero one!

After all, this stuff’s head is filled with engineering knowledge that has been condensed for hundreds of years. What can Li Tai surpass?

But Li Tai definitely doesn't know the inside story. The poor boy is nodding energetically: "Tai remembers the teachings of the mountain leader!"

Li Zexuan nodded with a "happy face", and said: "Yeah! Go!"

Li Tai stood up, arched his hands towards Li Zexuan, then turned around and left with high spirits!

"Tsk tusk! No wonder the teachers in the previous life like to pour the soul chicken soup on the students so much, because it works~!"

Looking at the back of Li Tai raising his head and leaving, Li Zexuan sighed in a low voice.

If Li Tai heard this, he would have to vomit blood!

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"Fubo, I trouble you to arrange someone to do something for me these days~!"

After helping Li Tai solve his confusion, Li Zexuan came to Fu Bo's office and said.

"What does the young master want?"

Fu Bo smiled and asked. Li Zexuan took out a stack of drawings, a little embarrassed and said: "Fu Bo, what I have done this time is more complicated. You always see if there is anything you don't understand, I'll talk to you later~!"

Fauber nodded, and then the whole person's attention was immersed in the drawing.

After a while, the astonishment on Fubo's face grew stronger and stronger. After reading the last drawing, Fubo couldn't help it anymore and said, "Master, are you going to build a car?"

Li Zexuan nodded and smiled: "Fu Bo has good eyesight! Yes, I really want to build another car!"

Fuber frowned and said: "But what kind of car is this? Why does it look bigger than a carriage?"

Li Zexuan smiled and replied: "I call it an electric car. The principle is similar to that of an electric bicycle. It uses batteries and motors to drive the wheels to move quickly, but this electric car is larger and There are more people that can be loaded, and more power is needed!"

Forebur paused and said in doubt: "Master, this idea is good, but in this way, the car will become heavier. If more people are loaded, the car will be difficult to drive away. Ah!"

Li Zexuan shook his head and said: "This Fu Bo don’t need to worry. The electric motor of this electric car is definitely different from the electric bicycle motor. It has more power and greater traction. You always arrange for someone to do it according to the drawings. That's it! But you must remember to keep a secret from Shaoning and Miss Mo!"

After hearing this, Fu Burch said: "Master, why is this?"

Li Zexuan smiled and said: "Fu Bo, this car is my wedding gift to Shaoning and Miss Mo. I plan to give them a surprise when the time comes!"

Yan Shaoning is also a good brother to say, good brothers get married, this gift must not be shabby, so Li Zexuan thought of it.

When Uncle Fu heard this, he suddenly realized that he nodded and said: "That's it! Don't worry, master, the old man will arrange for someone to build a car for you, and keep this matter strictly confidential!"

His old faces are full of gratification. Li Zexuan and Yan Shaoning, one is his current boss and the other is his predecessor. Fu Bo has always had deep feelings for Yan and Li. Li Zexuan's relationship with Yan Shaoning The marriage is so concerned, it proves that Li Zexuan really regarded Yan Shaoning as a brother. Of course, Fu Bo was relieved!

At the same time, Fubo became more concerned about the car making matters that Li Zexuan confessed. He secretly said that he must raise the spirit of twelve points, and stare at the people below to make cars!

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"Ke'er, today I heard that hundreds of people flocked to Yanhuang Bank to save money. I wonder if you can come over there? Do you want my father to send you more staff?"

In the evening, Li Ke was unexpectedly recalled to the palace by Li Er. After dinner, Li Er rarely began to care about Li Ke's daily work.

Li Ke suddenly felt flattered. He arched his hands and said, "Thank you for your father’s concern, but on the bank’s side, the son-in-law can handle it, and at noon today, the mountain leader told the son-chen Recruit a group of security guards for Yanhuang Bank. After all, the bank has too much money. If criminals covet it, the loss will be too great!"

Li Er nodded thoughtfully, and said, "Well! Yonganhou's arrangement is very appropriate, so let's do what he wants! Father will not do anything more!"

"Where the emperor father said, you can inquire about bank affairs personally, it is an honor for your ministers and mountain leaders!"

Li Ke quickly arched his hands.

Although this is a bit of compliment, it also has a bit of sincerity. After all, Li Er didn't deal with bank affairs much before.

"Hehe! Don't come to compliment the emperor, I'm tired of hearing this!"

Li Er waved his hand, said with a smile, and then asked:

"Ke'er, now the people flock to Yanhuang Bank and want to save money for interest. Can Yanhuang Bank be able to eat so much money? Will it pay off the interest promised to the people? Originally free To exchange Tang Yuan for the people is already a profit-giving move that the bank has withdrawn for the benefit of the people. Nowadays, the bank not only does not charge the cost of keeping money for the people, but also pays interest to the people. In the long run, won't Yanhuang Bank make ends meet?" /

Li Ke pondered for a moment and said: "Father, Yanhuang Bank will never lose money! The annual interest rate for our deposits to the people is 1.75, and the annual interest rate for lending money to private merchants is 8%, from the people. With a hundred pens of money, if you can lend all of it to a merchant, then Yanhuang Bank can earn 6.25 pens a year with this one hundred pens!

There is one thing that cannot be ignored, that is, this hundred tranches of money is not ours, but the people who came to save money, that is to say, our bank does not use capital at all, the people who can rely on it in a year The saved one hundred guan money earns 6.25 guan, which is completely no-cost trading, and the profit is not low at all! Where can I find such a profitable business? How can our bank lose money? "

Modern banks have many types of operating income, including deposit and loan spreads, handling fees, agency sales fees, investment income, etc., but the most important thing is to rely on deposit and loan spreads, which is the foundation of the bank. In the same way, today's Yanhuang Bank, the most important way to make profits is the interest difference between deposits and loans!

When Li Er heard the words, he nodded thoughtfully, and then he asked: "What you said just now makes some sense, but if there are too many people who come to save money, merchants who come to Yanhuang Bank to borrow money It is not enough to support such a huge amount of deposits. For example, the people have deposited 100 tans, and the bank only borrowed a consistent amount of money. Wouldn't the Yanhuang Bank still lose money?"

Being able to say these words proves that Li Er had done enough homework before, otherwise he would not ask such sharp questions.

Li Ke couldn’t help laughing at this moment: “This father doesn’t have to worry about it anymore! This policy of exchanging money without commissions and saving money to earn interest was first piloted in Lantian County, mainly because of Lantian. The merchants in the county are very active. All kinds of shops, large and small, have sprung up in the towns of Lantian County. The merchants in the surrounding county towns are even more active. In this case, the merchants of Lantian County are very The demand for money is naturally much higher than that of merchants elsewhere!

At the end of each month, the Yanhuang Bank in Lantian County will have a money shortage problem~IndoMTL.com~ Now it has received positive deposits from the people, it is estimated that there will be no money shortage in the future, which is very important for the expansion of the bank’s operations. There are benefits. Prior to this, the children and the bank’s staff carefully calculated that as long as the deposits absorbed by the bank’s current business volume were below 500,000, they would never lose money, or even make a lot of money! "

"Oh? Keer, you are so confident?"

Li Er couldn't help but asked with a smile.

Li Ke replied: "Of course, father, don’t forget that although the loan interest rate of our bank is higher than the deposit interest rate, it is compared with other large private households in lending and lending money. When our bank borrows money from merchants, The interest levied is really too low. Based on this alone, as long as the merchants are short of money, they will definitely come to our Yanhuang Bank to borrow money. So there is no need to worry about whether they will lose money!"

"Well, the annual interest rate of loans at Yanhuang Bank in Lantian County is only 8%. Compared with private loans, this interest rate is indeed low!"

Li Er has some understanding of civil affairs, and he nodded when he heard the words.

This 8% annual loan interest rate may seem scary to modern people, but for ancient people, this interest rate is simply too cheap! In this era, a monthly interest rate of 10% can be called the "conscience of the industry". If the monthly interest rate is 10%, the annual interest rate is directly in the hundreds, which is a bit too expensive!

Especially during the Sui and Tang dynasties, the imperial court set up a special fund called "public capital" for official loans, and its function is somewhat similar to that of modern banks. The capital of the public property is managed by the prefectures and historians, lent out 50,000 capital, and collects 4,000 wen of interest per month, with an annual interest of about 100%.

So, the borrowing interest rate of Yanhuang Banks is simply "a godsend" to those businessmen!

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