Time flies.

Well, it's only been ten years since more than five hundred chapters.

During this time, the Gewu College of Guanshishan Academy can be said to have attracted countless attention.

There are also a lot more people in Chang'an City who are interested in Gewu.

Zhao Xiaoer, who was born in Jiyifang, is one of them.

Originally, he was counting on selling "Datang Daily" to change his fate, but he didn't expect an unexpected "lucky paper" to change his fate.

Because of the sale of "Datang Daily", Zhao Xiaoer has an unusual interest in learning.

Although in the first ten years of his life, he was basically illiterate.

But since the sale of "Datang Daily", his life has taken a different path.

I don't know if his talent is too high, or if the threshold of the Guanshishan Academy is too low.

After some hard work, Zhao Xiaoer successfully became a student of the Gewu Academy of Guanshishan Academy because of his outstanding performance in the course of Gewu!

What's even more surprising is that he let Li Yan be his teacher.

I don't know what Li Yan likes about him.

"Master, I have prepared all these experimental materials."

In the Electric Energy Research Institute, Zhao Xiaoer was busy there early in the morning.

Since Li Yan got some principles related to electrical energy from Li Kuan, he has been experimenting continuously.

However, a few days passed, and there was no effective progress.

"The prince said that with these metals and sulfuric acid and other materials, you can make something that can generate electricity, but I tried all the metals such as gold, silver, copper, iron, lead, etc., and I didn't find any clue, which is really strange."

Li Yan didn't doubt that there would be a problem with what Li Kuan said.

In fact, few of the students of Guanshishan Academy would doubt what Li Kuan said.

To put it mildly, if one day Li Kuan said that he could go to heaven and sea, everyone would probably believe it.

"Master, I remember that His Royal Highness the King of Chu said that this electricity is divided into positive and negative electricity, but our experiments are just a piece of metal and sulfuric acid and other materials together, so isn't the positive and negative electricity always together? Shall we try placing a piece of metal on the left and right sides and see if anything is different? ”

Zhao Xiaoer is good at observation and thinking, otherwise he would not stand out among the newly recruited students of Guanshishan Academy.

Although when Li Kuan said those words in the Daming Palace, Zhao Xiaoer was not at the scene.

But Luo Bingwang personally wrote the report, but he memorized it without falling.

So what Li Kuan said, he knew better than anyone else.

"Positive and negative? It seems to make some sense to explain this. ”

Li Yan thought back to what Li Kuan had said, and it seemed that his previous experimental method was indeed not quite right.

"Yes, and I think we can expand the protocol a little bit more. Not only can you put iron sheets and sulfuric acid solutions together, but you can also put iron blocks on one side and lead blocks on the other; Or put iron on one side and lead on the other. In short, try as many methods as possible. ”

Zhao Xiaoer saw that his proposal was approved, and he was very excited to say other ideas.

"Okay, let's try it the same way you did."

……

In the dissection room of the Medical College of Guanshishan Academy, Tong Zhou was struggling with a bunch of frogs.

In this era, it is naturally easier to obtain a general teacher than in later generations.

However, there are not so many general teachers for everyone to squander.

So, the little white rabbit and the little frog suffered.

"Tong Jiaoyu, this issue of Science magazine, there are several articles related to electricity, through the kite experiment, it is also proved that electricity can be transmitted through copper wires. It seems that the study of electricity has become the hottest thing in our academy. ”

Chao Qiong complained there a little aggrieved.

Medical school has never been a popular area for Guanshishan Academy, and even if Tong Zhou came up with this thing of microorganisms, the number of students studying medicine is still relatively limited.

In particular, many people heard that studying medicine would have to deal with the general teacher, and that they would have to go to the general teacher in person, and they immediately retreated.

"I've also read that article, and if the effect of electricity can really be as wonderful as that described by His Royal Highness the King of Chu in his speech, then it will actually be very beneficial to our medical development. Not to mention anything else, the kind of electric light that the prince said alone can help almost everyone.

Although whale oil candles are very easy to use now, if you have to have surgery at night, the brightness is still not enough, and you have to worry about holding the candle too close to the operating table, and the candle oil will drip on the patient's wound. ”

Tong Zhou quickly demonstrated the anatomy of the little frog to everyone, and answered Chao Qiong's words.

Chao Qiong, who was born in the most medical family, although her reputation is not the biggest among female students, she is the most skilled in medicine.

Otherwise, when she was in class, how would she dare to chat with Tong Zhou like this?

"That's right, there are a lot of people in Gewu Academy who have joined the Electric Energy Research Institute, and I heard that Xu Shenjun specially approved 3,000 yuan of experimental expenses to the Electric Energy Research Institute. I don't know when new discoveries will be made in this electricity research. ”

Chao Qiong is still more concerned about the internal affairs of the academy, no matter which college it is.

"The discovery of many things is with a hint of coincidence and chance in it, if you are lucky, maybe there will be a major breakthrough in a few days, if you are unlucky, there will be no movement for a year or two, it is not strange at all."

Tong Zhou's words accurately described the situation in the various laboratories of Guanshishan Academy during this period.

Although there are prerequisites for these accidental discoveries, it cannot be denied that the discovery of many things does have an element of luck in it.

Even sildenafil, which swept the world in later generations, didn't it come from an accident?

"Well, that's right."

Chao Qiong picked up the tweezers while imitating Tong Zhou's movements, preparing to dissect the little frog on the table.

Well?

When Chao Qiong's tweezers touched the little frog's thigh, she noticed that the thigh seemed to tremble.

This situation does not seem to have been seen before.

Besides, isn't this frog already dead?

Chao Qiong once again brought the tweezers closer to the frog's other thigh.

This time, she saw it clearly!

It's shaking again!

It's weird!

Chao Qiong picked up another frog and put it on the test bench, and tried again.

There was no jitter this time!

It's the same frogs.

Chao Qiong, who felt a little strange, made a miracle to change the position of the two frogs, and then tried again.

This time, it turned out to be the opposite.

The thighs of the frog that didn't move just now moved!

What was moving just now is not moving!

Chao Qiong's face showed a puzzled expression.

Obviously, there should be something in this that I don't understand.

If you don't understand, you have to ask, if you don't understand, you have to study, Chao Qiong has done several experiments over and over again, and the result is that the frog in one position will shake when its tweezers are approaching, and the other position will not.

It seems that this should have nothing to do with the frog itself.

Could it be ......

Chao Qiong noticed that there was a copper wire, I don't know why it was on the test bench, and I didn't pay attention to it just now, so I let a frog put it on top of the copper wire.

"Tong Jiao, when I put the frog on the copper wire and then use tweezers to approach its thigh, the frog's thigh will shake; But when I put the frog on the test bench outside the copper wire, there was no movement, what do you think is the reason? ”

"Huh? And this kind of thing? ”

Tong Zhou put down the work he was doing and came to Chao Qiong's side.

Then, under Chao Qiong's explanation, he personally did the experiment.

Needless to say, the result must be the same as Chao Qiong said.

"The crux of the matter should be this copper wire!"

Tong Zhou quickly locked in the point of change.

In fact, this is actually a very obvious problem.

"Tong Jiaoyu, the kite experiment mentioned in Science magazine, the lead of traction is copper wire, could it be that this change has anything to do with electrical energy?"

Chao Qiong's mind somehow came up with such an idea.

As soon as this thought popped up, it took over her cognition out of control.

"Electricity?"

Although Tong Zhou is not engaged in Gewu, the people in the medical school know some knowledge of Gewu College.

"That's right, I read that in the article written by Senior Brother Li Yan, His Royal Highness the King of Chu explained in detail His Royal Highness the King of Chu's explanation of electrical energy, where positive electricity and negative electricity are mentioned, and when these two points come into contact with each other, the phenomenon of discharge will occur. At that time, when doing the experiment, Li Jiangshilang first felt numbness in his arm, which should have been electrocuted. ”

Chao Qiong's Aya Chaofang is a witness to the kite experiment and a "victim".

Therefore, Chao Qiong knows a lot more about the content of this experiment than ordinary people.

"You mean that the copper wire and iron tweezers are positively and negatively charged, respectively, so when the tweezers are close to the frog's thigh, its thighs will shake?"

Tong Zhou sorted out the meaning of Chao Qiong's words, and felt that the more he thought about it, the more interesting it became.

If electricity can be generated in this way, then this discovery should leave a strong mark on the history of electricity, right?

"I don't have proof, but I think it's very likely. Tong Jiaoyu, why don't we cooperate with the Electric Energy Research Institute to study this phenomenon well. If that's exactly what we just guessed, this would be the front page article in the next issue of Science. ”

Chao Qiong has submitted articles to Science magazine several times, but so far, not a single one has been successfully published.

In Guanshishan Academy, the number of papers published in the journal "Science" has been regarded as an important reference for the strength of the students.

In particular, several faculties outside the School of Economics and Law are paying more and more attention to the journal Science.

According to a well-informed source, students who graduate in the future will be required to have published a paper in the journal Science.

"That's a good idea, now we can go over and talk to that Li Yan. Their electrical research institute is located in the middle of nowhere, just close to our dissection room. ”

Tong Zhou didn't care that he was still teaching everyone, put down the things in his hand, and took Chao Qiong to the Electric Energy Research Institute.

……

"Smack!"

A small spark appeared in front of everyone.

"I ...... I'm not dazzled, am I? Did it really spark like lightning just now? ”

Li Yan turned his head very excitedly to look at Tong Zhou, Zhao Xiaoer and the others.

Li Yan, who had been experimenting with various metal sheets such as iron sheets and copper sheets and sulfuric acid in the Electric Energy Research Institute, immediately had a new inference after listening to Tong Zhou and Chao Qiong's words.

When two different metals are joined together and there is something in between, there is a chance that electricity will be generated!

This logic is very consistent with some of Li Kuan's previous words.

So Li Yan immediately adjusted his experimental plan, installed an iron sheet and a copper sheet at both ends of a glass box, and injected some sulfuric acid into it.

Then use the iron wire and copper wire to separate the metal pieces at both ends of the face, and when the ends of the iron wire and the copper wire slowly approach, the scene just seen appears.

"Smack!"

Master, there has been a spark in my group of experiments.

Zhao Xiaoer also tried to pick up a set of wires connected to the top of the silver and iron blocks next to him, and when he got closer, he sent out sparks.

"So, the frog's thigh shakes because it is connected to the copper wire on one side, and when the tweezers are placed on the frog's thigh, it is equivalent to the other side connected to the iron piece, so that electricity is generated?"

Chao Qiong tried to explain the scene in the dissection room with the phenomena and principles that she had observed so far.

Not to mention, as soon as she said this, Tong Zhou felt that all the logic made sense.

"What a remarkable discovery! Some ministers in the court are still questioning His Royal Highness the King of Chu's interpretation of thunder and lightning, and if we can succeed in creating electricity, it will be easier to explain these things. ”

Li Yan was very excited, and felt that the Electric Energy Research Institute had come up with such a major achievement after a few busy days, which was simply promising.

Of course, he didn't want to monopolize the discovery.

Obviously, Tong Zhou and Chao Qiong's contributions are indelible.

"That's right, no matter what is newly invented in our academy, there are always ministers in the court who stand up and question His Royal Highness the King of Chu. This time, we were able to use experiments to prove the generation and existence of electricity, and there should be no one in the court who was embarrassed to trouble His Royal Highness the King of Chu with the matter that the Big Ben of Daming Palace was struck by lightning. ”

Tong Zhou himself was questioned by many people because of the problem of bacteria, and he naturally had a deeper understanding of what Li Yan said.

"In the next few days, we will improve this experimental plan to see if we can find a better way, and then invite His Royal Highness the King of Chu to come and take a look in person. I have a hunch that the mystery of electricity will soon be unraveled. ”

Li Yan felt that his little heart was about to tremble.

Are you going to live forever?