"What the hell is going on with you, why is the water able to flow up?"

Gong Shouyue hurriedly pointed to the layers of high wooden barrels next to him, and asked with puzzlement.

"Well, what's wrong with the siphon principle?"

Lu Chensheng thought what was going on, and after glancing at the wooden barrel on the side, he responded nonchalantly.

But it's just the siphon principle, using atmospheric pressure.

Siphon principle, what is it?

When the two girls heard this, they only felt confused, and after looking at each other, they didn't understand what Lu Chensheng was talking about.

"Let's put it this way, there is some invisible atmospheric pressure around us, and although we can't feel it, it's real.

The water does not flow upwards here, but as long as we use this bamboo tube to create different air pressures on both sides, we can pump the water out. ”

As he spoke, Lu Chensheng picked up the remaining bamboo tube on the side and demonstrated it to the two girls.

Seeing with his own eyes, Lu Chensheng actually took out the water in the barrel, and the two girls were still stunned.

"You can probably understand it this way, the atmosphere is constantly pressing on the surface of the water here, and the water flow will naturally flow towards the place where the air pressure is weaker."

Gong Qiongyue looked carefully, with a thoughtful look.

It's just that Shouyue is different, although she sees it a little clearly, but it is still a little difficult to understand why this is happening.

"So, in fact, they were all under atmospheric pressure together, but because the balance of one of them was broken, there was an extra vent on this side, is that what it means?"

Gong Qiongyue gently raised her white chin, and asked with a slightly strange look in her eyes.

Lu Chensheng glanced at it with some surprise, and then nodded, "That's true." ”

As he spoke, Lu Chensheng waved his hand, "Come in quickly, the banquet is ready!" ”

Although the two girls were still a little confused, they did not delay it for a while, and walked into the hall together.

When they were full of wine and food, the big men thanked each other at this moment and left together.

On the way, Gong Qiongyue seemed to have been thinking about something, and from time to time the corners of her mouth would hook up a smile.

Gong Shouyue looked a little puzzled, "Sister, why have you kept having such an expression since you left Taohuawu?" ”

"I seem to have caught the opportunity to break through the Grandmaster."

Gong Qiongyue's eyes had a strange light, and she said a word to Shouyue.

"What! How did you get the hang of it? ”

When Gong Shouyue heard this, the surprise in his heart was still suppressed, and he hurriedly asked.

"The siphon principle that the scholar just said, after listening to the other party's explanation, I suddenly found that in fact, martial arts are the same."

Gong Qiongyue pursed her lips and said with a smile, she naturally would not be stingy with her sister, and she also hoped that her sister would also be able to seize this opportunity, so she immediately continued to explain.

"Martial arts are actually the same, it is difficult to go further in a realm like ours, it seems that all aspects have reached the peak, and it is extremely difficult to go further.

In this case, we must open a gap by ourselves, attract the power of heaven and earth to help break through, and then we can go to the next level. ”

Shouyue opened her mouth slightly when she listened, but her pretty face was still stunned.

Qiong Yue Moth's brows furrowed slightly, "You still don't understand?" ”

"I don't understand."

"That's it, I've heard that the grandmaster's trick is not so easy to comprehend, everyone's comprehension will be different, and now what I have comprehended is always a little different from you."

After Qiong Yue thought about it, she immediately opened her mouth to explain.

Shouyue was a little discouraged, her sister's talent was better than her own, and it was just a simple truth at this time, and she actually let her sister break through.

"In the future, you may be able to have more contact with this scholar, and the truth of heaven and earth that the other party just explained just now ordered me.

If you can hear some of the rest of the wise sayings, if you understand one or two of them, you will have a chance to break through in the future. ”

Qiong Yue thought about it for a while, and said softly to her sister.

"Just him? He doesn't know any martial arts at all, how can he order our martial artists? ”

Shouyue doesn't believe it, and thinks how can a layman order an expert master?

"Scholars have always had a high status since the establishment of the dynasty, and there is always a reason for it, and you may gain something from getting in touch with it."

Shouyue still didn't believe that this scholar could be on demand, but after thinking about it, he decided to come down and talk to him more in the future.

Maybe one day I will have an opportunity like my sister.

In the end, her sister made the scholar wake up, and she also held a glimmer of hope in her heart.

A group of people happily returned to the village, while Lu Chensheng was resting in the courtyard.

Seeing that the fifth day of the first month was busy inside, he said, "On the fifth day of the first month, after we are done, let's go to the city to see if we can sell some paintings and earn some silver." ”

In order to entertain the carpenters, Lu Chensheng's money was almost spent.

It's not okay to go on like this, Lu Chensheng thought about it and felt that he needed to run a business.

Hearing this, the fifth day of the junior high school immediately rejoiced, "Okay, then the fifth day of the first year will enter the city with the son." ”

As long as she can follow Lu Chensheng, she will feel very happy about whatever she does.

For a while, I painted a few paintings and imitated some poems, but I don't know if I can sell them for a little price.

The fifth day of the junior high school quickly washed the dishes and chopsticks, cleaned up the table, and then trotted to Lu Chensheng's side with an expectant face.

"Childe, we can go."

Chu Wu said expectantly.

Lu Chensheng saw that it was funny, and he didn't mean to tease her, and the two of them cleaned up and came to Fufeng City.

In Fufeng City, the two of them chose a place and set up a stall, and the ink paintings were hung directly aside.

In his previous life, Lu Chensheng was interested in learning this craft, and now there are a few paintings that can be used.

"On the fifth day of the first month, how much do you think this calligraphy and painting should be sold for?"

Lu Chensheng looked aside, and there were also a few scholars who were setting up stalls to buy calligraphy and paintings, but he didn't know how much money he should sell.

Chu Wu frowned and thought for a while, "At least thirty copper coins for a painting, right?" After all, a piece of paper costs fifteen copper coins. ”

Fifteen copper coins can only buy one piece of paper?

When Lu Chensheng heard this, he immediately gasped, fifteen copper coins could buy a day's rations for the two of them!

The buns I ate before were only two copper coins each.

This paper is so expensive, there is still some paper on the thatched house, and he has not spent money on it, but he does not know the price of this paper.

Chu Wu looked at Lu Chensheng's face as if something was wrong, and she was a little uneasy, she really didn't know how much this painting should be worth.

Because the scholars will evaluate according to their own words, everyone is different.

How much Lu Chensheng should be worth, she doesn't know very well, although she is a showman, her reputation is not as high as the other two shows.

It's not easy to book.