Emperor Chongzhen of the Ming Dynasty

Chapter 673 About Electromagnetic Induction
Zhu Youjian drew the model of the dry battery and explained it to Xu Yin in detail.

Xu Yin looked at it seriously for a while, he didn't expect his Majesty to design such a battery structure so quickly, and even thought about what material to replace it with, he couldn't help being very excited:
"Your Majesty's intelligence is far beyond the reach of this minister. I never thought that I could do this."

"It's nothing, even if I don't tell you, you can figure it out if you explore it yourself, because you have already figured out the principle, it's just a change of materials."

After speaking, Zhu Youjian said again: "But the current produced by the battery is still limited, and it cannot be used for lighting or other purposes for a long time, and the voltage generated is not large. Now I hope you can change your thinking."

"Please enlighten me, Your Majesty," Xu Yin said.

"The way you create voltage now is to use chemical reactions, but the basic principle is still the gain and loss of electrons to generate voltage and form current. In this case, besides chemical reactions, you can think about whether there are other ways to transfer electrons to substances."

As Zhu Youjian said, he took out a compass: "You should already know that magnets have positive and negative poles, just like this compass, and electricity also has positive and negative poles. Haven't you thought about the correlation between them? ?”

"I've thought about it, I've thought about it, and someone published an article on this in the "Nature" run by Ms. Li Xiangjun in Nanjing, saying that after the positive and negative poles of electricity appear, there will be the same-sex repelling and opposite-sex attraction effect of a magnet."

Xu Yin replied.

"Very well, it seems that even if I don't intervene, someone in Daming will discover that electricity produces magnetism."

When Zhu Youjian said this, Xu Yin couldn't help asking curiously: "Your Majesty said that electricity produces magnetism?"

"Of course it is possible. Not only electricity can generate magnetism, but magnetism can also generate electricity. You have now discovered the magnetic induction lines and simulated the magnetic induction lines with iron filings. In fact, these are the magnetic fields formed by magnets. The magnetic induction lines of the magnetic field are Its form of expression is the same as electricity, which also has an electric field, otherwise the positive and negative electrodes will not attract each other when they are close to each other;
That is to say, the electric field may also have electric induction lines. If the electric field is produced by using voltage to generate current, a metal device can generate a magnetic field and magnetic induction lines. Then, if a metal rod is used to cut the magnetic induction line, it will Use magnetic induction lines to transfer electrons on metal rods to generate current. You can try it. If you succeed, you can use mechanical power to cut magnets to generate electricity, so there is no need to spend so much effort to make batteries. "

Zhu Youjian didn't know how Faraday used the phenomenon of electromagnetic induction to create electricity and thus invented the generator.

Now he can only tell Xu Yin the principles he knows, and order someone under the pseudonym Zhu Xuesen to package this knowledge to "Nature", let it be published, and let interested people in the empire participate.

Xu Yin was naturally also involved. While summarizing his experimental records of making dry batteries and electric lamps, he began to prepare to verify the theories of magnetic energy generating electricity and electric energy generating magnetism.

Xu Yin didn't know who Zhu Xuesen was, why he put forward the electromagnetic induction hypothesis in "Nature" less than three months after His Majesty told himself the theoretical knowledge.

Because there is no experimental evidence, it is called a hypothesis.

But even the hypothesis has attracted widespread attention from the academic circles of the Ming Dynasty. The similar properties of electricity and magnetism have already made many researchers of the Ming Dynasty begin to suspect that the two have something in common.

Now that this hypothesis comes out, there are naturally many people discussing it and preparing for experimental verification.

There are even capitalists who have started to discuss that if the hypothesis is true, steam mechanical power can be used to cut magnets to generate current, so that many products related to the use of electricity can be manufactured at low cost.

These forward-looking capitalists smelled the wealth inside, and began to spend a lot of money on research.

But in the end, it was Xu Yin, the genius who was best at constructing circuit experiments in the Ming Empire, who first proved the hypothesis of electric energy generating magnetism.

Then, because Xu Yin did not explore how to use magnetism to generate current like Faraday did, he directly used Zhu Youjian's suggestion to cut metal to discover current, thus demonstrating the hypothesis of magnetic energy generating electricity.

For a while, Zhu Xuesen and Xu Yin became the most hotly discussed figures in the academic circles of Ming Dynasty.

But Zhu Xuesen has always been a dragon, so Xu Yin naturally became a frequent speaker in major universities.

Zhu Youjian instructed Han Shoujing to establish the Daming Manufacturing Bureau to hire Xu Yin as the engineer of the manufacturing bureau first, and began to ask Xu Yin to organize a team to use this principle to manufacture generators and motors.

Of course, although the theory and experiments have been done, the manufacture of generators is still not so easy to manufacture.

Xu Yin still needs to spend a lot of time thinking about how to design the generator, how to ensure the generator can generate electricity effectively, and also have to consider the manufacturing cost.

It will take at least one or two years for these to come down.

Fortunately, Zhu Youjian ordered the Daming Manufacturing Bureau to fully cooperate, no matter how much money was spent.

Therefore, Zhu Youjian believed that Daming's first generator should be available soon.

It is worth mentioning that dry batteries were manufactured very quickly, and they were mass-produced very quickly.

The company controlled by Zhu Youjian Royal Capital contracted the production of electric lights and dry batteries, which made Zhu Youjian make a lot of money in it, but Xu Yin also made a lot of money, because on the surface, he owned these patentee.

Electric lights were quickly used in all walks of life in Ming Dynasty.

First of all, steam locomotives no longer need to burn candles for lighting. Large arc lamps and large batteries can meet the lighting requirements of steam locomotives when they are running at night, allowing steam locomotives to pass at night and improving the speed of domestic trade in Ming Dynasty.

Secondly, folk lighting began to be replaced by electric lights one after another, at least in the era when electric lights and candles coexisted.

Especially wealthy families, naturally don't care about the cost of dry batteries, and began to use electric lights as a symbol of noble status, but because of this, in the early days, although the manufacturing cost of electric lights was not high, the price was high, otherwise it would not be enough to show wealth. The status of the family, and the more expensive the better.

As a result, the company controlled by Zhu Youjian's Royal Capital made a lot of money.

As a result, Xu Yin became the second richest man after Yang Mingshen. This is the second richest person in Ming Dynasty who became the richest man in Ming Dynasty after the railway industry.

It also inspired more people to join the ranks of sacred science research and promoted the development of Ming Dynasty's manufacturing industry.

The Forbidden City also began to use electric lights, and the lanterns were naturally eliminated. Many times they can only be hung as mascots, and Zhu Youjian can finally see the white body of his concubine at night without having to touch it blindly. Got it.

It is precisely because of this that the nightlife in Daming has become more abundant.

Electric lights can always produce more gorgeous lights more easily than candles, especially after the invention of colored lights, it makes people's entertainment life more beautiful.

(End of this chapter)