Following.

Small building.

Yang Reform had just watched a few important notes, and Wang Chengen reported: "Your Majesty, Zhang Zhenren has arrived, but do you want to see him?" ”

Yang Reform put down the music in his hand, thought about it, and said, "I didn't expect it to come quite quickly, see ......" Yang Reform did not hesitate too much.

"Yes! Your Majesty. Wang Chengen agreed.

……

Zhang Xianyong's life is obviously better than Kong Yinzhi's, his face is full of red light, his spirit is vibrant, and he looks like a master.

"Your Majesty!" Zhang Xianyong is very serious about saluting, not a little sloppy, outside he is a fairy, a real person, in front of the emperor, he can't shake half a point.

"No courtesy." Yang reformed and said.

"Thank you, Your Majesty!" Zhang Xianyong replied.

"How's it going?" Yang made a simple opening.

"Thanks to Your Majesty's blessing, the minister is doing well......" Zhang Xianyong agreed, and looked at the emperor again, he didn't know what the emperor asked him to do, could there be anything new to give him?

"Oh, have you made progress on what I told you to do?" Yang asked again.

"Back to Your Majesty, the minister has been working hard in accordance with His Majesty's instructions, and the progress is not ......small," Zhang Xianyong immediately happily started to make a work report.

"That's good......" Yang Gai listened for a while and said this. If Zhang Xianyong's enthusiasm is said, there is no doubt about it, and now those things bring him the supreme glory, as long as he is not a fool, he will definitely work this aspect, about this aspect of research. Progress should be okay. Judging from the information reported so far, Zhang Xianyong and his apprentices, and even some people who are obsessed with pills and Taoism can even be described as obsessive, promoting science and technology in this area. There is absolutely no doubt that even the less crazy Shilin people are very interested in all kinds of experiments and all kinds of experimental equipment, and it has become a trend to buy experimental equipment. This is undoubtedly a great benefit to popular science, and it is undoubtedly of great help to their own reform, of course, this has also caused dissatisfaction among many people, and with the increase in the scope and depth of popular science, the pressure has also grown.

“…… Well, I'm calling Qing's house today. There is nothing else, except to ask about the recent situation, but there is also an interesting thing to share with the Qing family...... "Yang Reform did not hesitate too much, and pushed out the popular science project he had prepared.

Step by step. Little by little, the continuous introduction of popular science projects to brainwash bureaucrats, scholars, and people all over the world to do popular science propaganda is what Yang Reform has been implementing. Change needs more people to support it. It's undoubtedly better to be able to win more people. Change is not a revolution, it is not as bloody as a revolution. Change, more modestly.

"Please also ask Your Majesty to make it clear ......" Zhang Xianyong didn't think about it, and immediately replied with a radiant look, his eyes were already full of joy, every time the emperor said this, there must be a lot of new things coming out. This is undoubtedly another big asset for him, and I don't know what new and good things will be there this time.

"That's right. A few days ago, I happened to encounter an incident, I thought it was very interesting, I couldn't figure it out, I thought about it for so many days and didn't figure out why, so today, I brought the Qing family here to see if the Qing family had any way, and could we solve the mystery......" Yang Reform looked at Zhang Xianyong and said his own business.

Zhang Xianyong listened carefully.

Yang Reform said that he also did his own thing. Yang Gengai first lit a thumb-thick candle, then dropped a few drops of wax oil on the bottom of the bowl, and then fixed the candle in the bowl. Then pour water into this bowl. Then cover the candle with a clear glass beaker with the rim facing down, and the rim of the beaker goes deep into the clear water. …,

“…… This is something that I can't figure out, and I'll see what happens next......" Yang said.

In fact, when Yang Gengai covered the rim of the beaker, something strange had already happened, and the water quickly rose in the beaker.

Zhang Xianyong has been watching the emperor busy with his eyes wide open, it is quite serious, he knows that the emperor will not be untargeted, will not joke with him, naturally he is pointed, so he does not dare to relax for a moment, carefully observe, the water in the beaker has just risen, just abnormal, he found out, stunned looking at the water in the beaker, how can this be?

It didn't take long for the candle in the beaker to go out, and the rising water came to a certain point and stopped.

Looking at the stunned Zhang Xianyong, Yang Reform did not have much self-satisfaction, but had a lot of oppression, like this kind of scientific science popularization experiment, every time he moved forward, every point of popular science, the pressure he was under would be greater, since this experiment was launched, then he had to be ready to accept this pressure, thinking of the pressure that was coming from the sky now, Yang Reform silently endured.

"How do you feel about the Qing family?" Yang asked Gengai.

"......" Zhang Xianyong was stunned for a while before coming back to his senses. "...... Back to Your Majesty, it's amazing, why does this water rise? And it's been like this, and it doesn't fall, it's really amazing, I don't know what the reason is......" Zhang Xianyong was really shocked, although he was almost mentally prepared, but when he encountered this kind of strange thing, he was still shocked.

“…… Well, the water rises one, didn't the Qing family find out, did this candle go out? Don't you think this is interesting? Yang Gengai prompted.

“…… This, back to Your Majesty, is indeed interesting, why is this candle extinguished? Zhang Xianyong asked puzzled.

“…… The Qing family also saw that this candle was not blown out by me, nor was it doused by me with water, but after the water gradually rose, it was extinguished by itself, and when the candle was extinguished, the water would not rise...... "Yang Gai said.

"Back to Your Majesty, exactly, the minister can see it clearly, it is true......" Zhang Xianyong immediately replied in the affirmative.

"This is also the reason why I summoned Qing's family here today, this interesting thing, I also found it by accident, and then I couldn't figure it out, why is this happening, what is the relationship between this candle burning and this water rising? Why do candles go out? Why is the water in this cup higher than the water in this bowl? What is the power that holds the water in this cup so high? Why is it that when the candle is extinguished, the water does not rise? ......" Yang Reform raised a lot of questions. This is actually an experiment to measure the amount of oxygen in the atmosphere, which can be used to prove the existence of atmospheric pressure.

Zhang Xianyong listened to the emperor's words dumbfounded. He didn't know any of these questions. Dumbfounded, there it was.

“…… Qing family, Qing family? Yang Gai shouted.

"The minister is here, the minister is in the ......, the minister is rude. Your Majesty ......" Zhang Xianyong hurriedly agreed, and hurriedly admitted his mistake, he was distracted just now.

“…… The Qing family said, why, can't this candle keep burning? Why is it extinguished? Yang Gengai saw Zhang Xianyong looking like an idiot there. had to say more hints, Yang Reform was afraid and afraid that Zhang Xianyong would not be able to touch the door, and felt that he still had to give some necessary hints.

“…… This, this, back to Your Majesty, the minister is dull, and please teach ......Your Majesty," Zhang Xianyong said immediately. He is very self-aware, and his roots have nothing to hide in front of the emperor, what should he say.

Yang Reform didn't say much, and he didn't stop in his hand, and opened the glass. Re-lit the candle, put the glass back on, and did the experiment all over again. …,

The process and result are exactly the same as last time, the water rises, to a certain extent, and the candle goes out.

“…… What do you think? Yang asked reform.

“…… Return to Your Majesty. The minister was stupid and ...... "Zhang Xianyong lowered his head and admitted that he didn't know anything.

“…… Hehe, no hurry. Look at ......" Yang Reform didn't say much, opened the cup, and re-lit the candle.

"Look at the Qing family again, if I don't cover the cup, will this candle be extinguished?" Yang asked Gengai.

“…… Returning to Your Majesty, I won't ......" Zhang Xianyong thought for a while. He replied with some hesitation.

"Yes and no. It's just an ordinary candle......," Yang said. With that, he closed the glass again, and soon, the water rose and the candle went out.

“…… Do you see anything? Yang asked reform.

“…… Back to Your Majesty, the candle is out......" Zhang Xianyong said with his head shrunk.

“…… Yes, and then what? Yang reformed and guided.

“…… Back to Your Majesty, the water has risen ......" Zhang Xianyong stammered a little, all this is too strange to him, he is also a person who has lit candles for decades, but at this moment, he never felt that the original candles would be so strange to him.

“…… Well, what else? For example, the position where the water rises ......," Yang reminded.

“…… Belch! Your Majesty, the minister remembers, the position where this water rises is roughly the same......" Zhang Xianyong seemed to suddenly find out, and immediately said happily, he finally didn't know anything.

Yang Gai said with a hint of relief: "Yes, the position of the water rising is about the same, that is to say, the things missing in this cup are about the same......"

"Your Majesty......" Zhang Xianyong was still confused.

“…… And this thing, every time I open the glass, it comes again, and every time the candle goes out, he is ......gone," Yang said.

“…… Returning to Your Majesty......" Zhang Xianyong looked dazed and ignorant.

“…… Well, that is, there are a couple of questions to be sure, the first: this candle burns, something is needed, and without this thing, the candle cannot burn; Second: In this formless and colorless heaven and earth, there is such a thing that can support combustion, and the proportion of this thing in heaven and earth should be certain; Third: What became of this thing when it burned? Originally, there was as much as one glass, but after burning, it was only about eighty percent, and where did the missing two percent go; This last question, why does this water rise? Yang Gai said a lot of questions in one breath.

“…… The minister was dull and ......, "Zhang Xianyong really doesn't understand."

“…… Yes, I don't understand this, and it is also the reason why I summoned the Qing family to come, and after the Qing family returned, they immediately summarized and verified the truth by exhaustive methods, and tried to draw a more credible conclusion to ......," Yang Gai said.

“…… Commandment! ...... "Zhang Xianyong is not ambiguous about this, this is not the first time, the emperor's means are very simple and effective, that is, exhaustive, in the face of exhaustion, often can get a lot of interesting and useful things, thinking of the means of exhaustion, Zhang Xianyong came to the spirit again, and felt that he would be able to find out the key to the problem and solve the mystery.

[I hope this elementary school nature experiment is not wrong.] 】