At this time, Sun Yuanhua said: "Your Majesty, the instrument department of the previous research institute ordered a batch of copper wires here, I heard that they are studying something called electricity, and want to turn what Your Majesty said into something in reality, I wonder if Your Majesty is interested in taking a look?" “

Zhu Youxiao was surprised: "Is there such a thing? Why didn't they tell me? I'm talking about something purely theoretical, and I haven't figured out how to turn it into reality. “

This is actually very watery, Zhu Youxiao opened a new course in graduate school - electricity. It's not a good lesson at all, because there's no real thing. Therefore, Zhu Youxiao used the cramming method to cut magnetic field lines to generate electricity, electricity can light up electric lights, and electricity can make the motor rotate The principle explained to them. He felt that it should be difficult to make electricity at the current level, so he never thought of researching electrical items, and at that time, he just wanted to talk about some principles first, and then slowly see if there was any guiding significance.

How could such a little bit of knowledge allow them to build electrical devices? Zhu Youxiao didn't dare to imagine it at all. He and Sun Yuanhua rushed to the instrument department of the research institute with a few people, wanting to see what they had made.

Several students were experimenting, and one student turned the handle so that a magnet rotated around a coil in the middle. The coil connects two wires to the other coil, and the magnet on the outside of this coil is fixed, and the coil inside rotates accordingly.

When the emperor came in, the students saluted and called His Majesty together. Zhu Youxiao waved his hand and looked at the device carefully. The handle that the student turns is inlaid with a magnet, while the coil in the middle is fixed. The coil on the other side is connected to the copper wire with two tile-like structures, and it is spinning non-stop.

Zhu Youxiao said: "Who is responsible for this?" ”

A student in his twenties stepped forward and said, "Your Majesty, it's student Chen Daoyong." His Majesty said that by cutting magnetic field wires, electricity like lightning can be generated, and the students wanted to try it, and they were able to create electricity that could paralyze people. The students were so encouraged that they thought that His Majesty had said that electricity could make metal turn in a magnetic field, so they made this device, and it turned out to be really rotating, and His Majesty was really a god. ”

Zhu Youxiao looked at the side, and sure enough, there was a half-sized structure, so he asked, "This is the discharger you researched?" “

Chen Daoyong said: "Your Majesty, it is this thing, the faster it turns, the more numb it becomes." “

Zhu Youxiao thought to himself, the discovery of electric shock seems to be more than a hundred years later, and the real application of electricity is more than two hundred years later, if you start to study electricity now, will it be too early, because science can not make great leaps and bounds in one aspect, it needs other aspects of science and technology to support. But if electricity can really be used, then for the Ming Dynasty, it is more than 200 years ahead of the world, and at that time, who would think that science will appear in the West now?

He looked at Chen Daoyong and said, "You gather students who are interested in electricity in the research institute to form the Daming Electric Research Institute, and you are the director." I will give you more detailed information, sufficient funds and manpower, all phenomena related to electricity can be studied, and I am sure that you will definitely surprise me. “

Chen Daoyong was stunned, he was only twenty-four years old, and it was unimaginable that he was entrusted with such a heavy task by His Majesty. However, he replied without hesitation: "The student will not disappoint His Majesty." “

Zhu Youxiao asked the students to go to Bi Maokang, the director of the research institute, and inform him about the establishment of the Daming Electric Research Institute. The Daming Institute of Electricity will still be located in the Institute, but the funding will be provided by the Daming Royal Science Foundation, which will not be under the jurisdiction of the Institute. Chen Daoyong and others are students of the graduate school, and now they want to come out of the graduate school, so they must also inform the dean Bi Maokang.

After returning to the palace, he had the clerk (squire) come in and begin to recall the scientific knowledge of high school. Voltage, also known as potential difference, is a physical quantity that measures the energy difference between a unit charge in an electrostatic field due to different potentials. However, how to measure the electric potential differently? Dizzy, forgot, or did the teacher not talk about it in the first place?

At this time, Zhu Youxiao realized that he had forgotten a lot of high school knowledge, which was not good. So for many days, a large number of Hanlin scholars were summoned to Yuntai and began the campaign to rescue the knowledge in Zhu Youxiao's brain. Zhu Youxiao memorized all the knowledge of all subjects (except modern history), whether useful or not, and then wrote it down.

Therefore, it often happens that after the Hanlin scholar writes the words on the paper, he still does not understand the meaning of this sentence. After more than 30 days of intermittent use, Zhu Youxiao felt that he had been hollowed out, so he stopped, and then classified and sorted out this knowledge, and ordered Wang Chengen to print 3,000 copies, put one copy in libraries everywhere, and then send it to the research institute.

Some of these knowledge Zhu Youxiao had already talked about when he was a professor of six subjects, but there was no such system as it is now. Books are divided into five categories: "Arithmetic", "Gewu", "Biology", "Chemistry", and "Geography". For the students of the graduate school, it is very instructive and inspiring knowledge.

In Gewu include mechanics, electromagnetism, optics, acoustics, and thermals. In the book, Zhu Youxiao threw out a large number of unproven hypotheses, such as the three laws of mechanics, electromagnetic theory, the three laws of thermodynamics, and even Einstein's mass-energy equation. High school is all about theory, and as for how to verify it, it can only be done by students.

After Chen Daoyong and the others got the book "Gewu", they saw the unfamiliar terms: voltage, electricity, current, resistance, capacitor...... It's a big head. Finally, Zhu Youxiao compiled another booklet, listing some basic experimental precautions in electricity one by one, such as the wire should be wrapped with an insulator, you can use water to make the magnet or coil rotate, but do not let people contact the bare wire, you can use animal experiments. Otherwise, I am afraid that at the beginning of the experiment, several students will be electrocuted.

Therefore, the Daming Institute of Electricity began their research under the guidance of extremely advanced theories and extremely rudimentary experimental conditions. The money provided by the Royal Science Foundation was sufficient, but there was nothing to buy. Just like the most common insulated wire, it can only be wrapped with wood chips or thick cotton on the outside of copper wire. But these students, suddenly seeing such a colorful new world in front of them, were so excited that they vowed to study electricity thoroughly, so that electricity can be used by the Ming people.