"Yan'er, it's a long journey to Heshuote, and you are weak now. If we go back once, I'm afraid you will become seriously ill. I will summon your brother and my father-in-law to Beijing."
Lin Fan said in a deep voice.
In fact, even if Nalan Yanran didn't mention this matter, Lin Fan still summoned Nalan Xiongying and Nalan Tuji to the palace because they were involved in a big case.
Previously, Li Nianru came to the capital, and by some mistake, Lin Fan learned about Li Gong's unjust case and the amount of stolen money that Magistrate Mu Xian had embezzled and perverted the law, amounting to tens of millions of taels of silver.
However, the reason why the court does not know about this matter until today is because Mu Xian is related to Heshuote, and his father-in-law Nalan Xiongying is also involved.
This matter was very complicated to deal with. It was naturally impossible for Lin Fan to order the execution of his father-in-law, but he also wanted to clear Li Gong's name.
Therefore, I thought of summoning Nalan Eagle and Nalan Tuji to the capital to ask them clearly.
"Really! Thank you sir!"
Nalan Yanran didn't think too much, she just thought that she would be able to see her brother soon and was happy.
"Haha! You girl, if you miss your father and brother next time, tell me and I will ask them to come over. In a few years, I will take you to Heshuote."
Lin Fan said with a smile.
With steam engines, angle grinders, and cutting machines, the next step is to make transformers and trains for generators. These two are symbols of the industrial age.
With a generator, it can only produce direct current, and direct current cannot be boosted. That is to say, the closer you are to the generator, the stronger the voltage will be, and the farther away you are from the generator, the weaker the voltage will be.
Alternating current is the king. However, if you want to transmit alternating current to farther places, you need a transformer. According to the power of the transformer, you can realize the distance that alternating current reaches!
However, this transformer is not that easy to make. Initially, the transformer made by Tesla, who invented alternating current, could only transmit alternating current a few hundred meters away!
However, once people can use alternating current in their daily lives, it will be much more convenient. With trains, people's travel will be more convenient, and it will be much faster to transport troops.
"Really! I miss the grassland of Heshuote!"
Nalan Yanran said excitedly.
"Haha! How could my husband not know that you miss your hometown? It's just that the journey is far away, so my husband can only think of ways to help you shorten the distance."
Lin Fan said with a smile.
"kindness?
reduce distance?"
Nalan Yanran looked confused.
Lin Fan took out a map and introduced to Nalan Yanran where he needed to pass to get to Heshuote from the capital. Then he told Nalan Yanran that he wanted to build a simpler road.
Nalan Yanran was so moved that she threw herself into Lin Fan's arms.
The next day, Lin Fan sent someone to Heshuote, and he himself began to study the generator.
In the College of Engineering.
"Your Highness, the generator you designed is really amazing. Look! There are bright lights everywhere in our engineering college!"
The students from the School of Engineering saw Lin Fan and said excitedly.
Lin Fan looked at these students and said solemnly: "I came to you today to assign you a task, and it is a task that must be completed."
Hearing what Lin Fan said, all the students present said seriously: "Your Highness, we owe it to you to study here!"
"Thanks to your grace, I can have access to such knowledge. This is knowledge that we have never heard of in this life and dare not even think about it!"
"If it weren't for His Highness the Crown Prince, we might have been frogs in the well all our lives. No matter what His Highness the Crown Prince asks of us, we will do our best!"
Seeing the confident expressions on the faces of the students from the School of Engineering, Lin Fan nodded with satisfaction.
"Very good! Next I want you to invent alternating current!"
Lin Fan said.
"Alternating current?"
The students in the School of Engineering all showed doubts.
Lin Fan smiled and said: "Yes, it is alternating current. To put it simply, the generator you are using now is a direct current generator."
"The advantage of such a generator is obvious, that is, the electricity produced is very safe and will not cause harm to the human body. However, the shortcomings of direct current are also obvious."
"This generator can only be used by the Engineering School. Even the brightness of the light bulbs outside the Engineering School will be very low because of the voltage problem!"
"Moreover, the power loss during the transmission of DC power is irreversible, which means that if we want the people of the entire Ming Dynasty to enjoy DC power, we need to build many DC generators."
"And there must be one at every certain distance. If we use alternating current, it will be much simpler. The electricity from one generator can be provided to people in a large area, which greatly saves costs."
"Of course, alternating current has certain harm to the human body. High-power alternating current can even electrocute people to death. You should also be careful about this."
After Lin Fan said this, everyone present looked shocked. Alternating current can electrocute people, but His Highness the Prince asked them to invent alternating current.
"Your Highness, since alternating current can kill people, why did we invent alternating current?
Isn’t it safer if we use direct current?”
"Although the cost of DC electricity will be high, it is safe for the people!"
"Your Highness, alternating current has the risk of killing people. We'd better not use it."
Listening to the opinions expressed by these people, Lin Fan couldn't help but shake his head secretly. These people's vision is still too superficial!
Moreover, they have no idea how huge the resources saved by direct current are compared with alternating current. Moreover, the voltage of direct current cannot support the subsequent industrial era reforms of the Ming Dynasty.
"Do you know that the cost of DC electricity is dozens of times that of AC electricity?"
Lin Fan said in a deep voice.
"this……"
Everyone was silent.
"If alternating current is used, then the people of the entire Ming Dynasty can use it. Moreover, each kilowatt hour of electricity only costs one penny. In a month, they can get it at most dozens of pence!"
"How much does it cost them to use candles a month?
It should cost at least a hundred coins. Of course, some families can’t afford candles!”
"Besides, the AC wires are wrapped in rubber. With rubber, people will not be in direct contact with the AC. As long as people don't damage the rubber, they will be fine!"
Lin Fan explained patiently.
"This! This seems to be the reason. The wires we use now cannot sense current!"