The Mo family tested the field, and saw that the forgetful Mo family really walked with Princess Changle.

The two of them were playing an old game of flying a kite on the trail in the experimental field!

It is spring at the moment, and the wheat seedlings in the experimental field have not yet grown tall, so it is a good season for kite flying.

With a swallow-shaped kite in his hand, Merton slammed in front of him, and with the help of the wind, the kite with its long tail quickly soared.

"Fly! Fly! Where did Changle, who had been in the palace for a long time, have the opportunity to fly a kite, and when he saw the kite flying, he couldn't help but cheer.

"I want to play ...... too," Princess Jinyang on the side raised her hands in anticipation.

Merton handed the kite in his hand to Princess Jinyang, and instructed Princess Changle to fly a kite herself, the two stood together, and Merton popped out a few witty words from time to time to make Princess Changle laugh.

Merton couldn't help but sigh, if it weren't for Princess Jinyang who had been acting as a light bulb on the side, how good it would have been for him and Princess Changle to date.

"This is the way of the saint of the dignified Mo family?"

Suddenly, a majestic voice suddenly appeared behind the two.

Merton and Princess Changle couldn't help but be startled, and hurriedly looked back, and saw Li Shimin staring at the two of them in displeasure, and behind him, the three Li Chengqian brothers were following with their heads shrunk like quails, and the kite in their hands had already fallen to the ground.

"Father!"

When Princess Changle saw Li Shimin beside her, she was immediately ashamed and looked at a loss, but she did not let go of the kite string in her hand.

Mo Dun gritted his teeth, stepped forward and bowed in front of Princess Changle and said: "This is Wei Chen's fault, Chang Le has been very dull in the palace for a long time, and it just so happens that today is the ink art exhibition, Wei Chen thought about asking Changle to go out of the palace to relax." ”

When Changle heard this, he couldn't help but feel warm in his heart, and hurriedly asked: "The child is greedy for fun, and I ask my father to punish him." ”

Li Shimin watched the two of them continue to ask for guilt, and couldn't help but feel a sense of powerlessness, what a woman is really missing! He always knew that Morton and Princess Changle couldn't catch it, and now he finally caught it once, but when the two of them were about to get married in half a month, what else could he say.

Li Shimin's face was gloomy and said: "Okay, since I came out today, then I will accompany me for a walk, and I am afraid that there will be less and less time to accompany my father in the future." ”

"Father! Look at what you said, the child will always be your daughter! Princess Changle said softly.

"Father, you still have a son!" Princess Jinyang was like an intimate little padded jacket, and stepped forward to hug Li Shimin's thigh.

The father and daughter talked for a while, Li Shimin's face slowly turned happy, and Li Chengqian couldn't help but breathe a sigh of relief, and a few of them finally escaped a session.

"After you go back, the three of you will write an article for me in the daily necessities of the people!" Without waiting for the three brothers to relax for a moment, Li Shimin's fluttering words instantly made the three of them look bitter.

Li Zhi even more exaggerated and angrily reprimanded Merton, if it weren't for the Mo family's invitation to Sister Changle to play, they would have returned to the palace long ago after watching the ink art exhibition, where would Li Shimin be caught.

He himself doesn't like to make a fuss the most, and this time I'm afraid I'll have to rack my brains again and don't know how much brain power will be spent.

Li Chengqian and Li Tai are not as simple as Li Zhi, they couldn't help but move in their hearts when they heard this, since Li Shimin asked them to write articles based on the people's daily use of the Tao, doesn't that mean that Li Shimin also agrees with Merton's theory that the people's daily use is the Tao, and the two couldn't help but look at Merton on the side.

"And you!" Li Shimin turned his head and stared at Merton with good intentions.

Merton was bold and said proudly: "Please also ask Your Majesty to command." ”

"Since you proposed that the people's daily use is the way, I will let you use this concept to create a thing that is beneficial to the people of the world, and it will be built according to the atmospheric pressure principle that you have spent thousands of times to crack today." Li Shimin sneered.

His most criticism of Merton is his behavior as a loser, today Merton spent thousands of dollars just for an unknown atmospheric pressure, which made Li Shimin unhappy, and now he saw that Merton deviated from his good girl Changle, and he saw that Merton was not pleasing to the eye, and he couldn't help but feel embarrassed by Merton's thoughts.

"Ahh Merton was dumbfounded, isn't the value of one well enough, Li Shimin even asked him to build another one.

Looking at Merton's embarrassed expression, Li Chengqian and the three of them suddenly felt refreshed in their hearts, and the resentment that was originally due to writing articles was suddenly swept away.

Suddenly, Morton looked at the kite string in Changle's hand, and at the other end of the line, a kite was still spreading its wings in the wind, and Morton had an idea: "Wind!" Yes, it's the wind, Weichen thinks that the common wind in our industry is caused by atmospheric pressure. ”

"Wind?" Everyone couldn't help but be stunned, the wind is naturally known to everyone, but everyone knows nothing about how the wind is formed.

"The wind is caused by atmospheric pressure, what do you mean?" Li Shimin said with great interest, everyone has always been able to feel the wind, but they have not had a trace of understanding, until Merton put forward the theory of oxygen and air, and everyone realized that there was nothing around them, but they were wrapped in air.

Merton stretched out his arm, and the strong wind blew Merton's clothes flying, and said proudly: "Since air has weight, there will be pressure, and the wind is like flowing water, there must be a force to push the air flow, and this force must be atmospheric pressure." ”

Everyone can't help but think, Merton to the example of flowing water, to compare the wind, can be said to be very appropriate, the principle of water flow in the crowd instantly pay attention to the origin of the wind, and the water can carry boats, the wind can blow kites, float hot air balloons, that is the same reason.

"So it's the wind!" Li Shimin sighed with emotion, and couldn't help but feel a feeling of enlightenment.

Li Tai's eyes lit up suddenly, although the air pressure is the knowledge of the Mo family, but the wind is a natural phenomenon of heaven and earth, and it can naturally be included in the "Chronicles of the Universe", so that after his "Chronicles of the Universe" cracked the clouds, he actually cracked the wind, which was simply an unexpected joy.

"I see!" Li Chengqian also suddenly realized, and couldn't help but look at Merton with surprised eyes, and sure enough, as Merton said, what the Mohists studied was a phenomenon hidden in heaven and earth.

"Even if what you say is correct, but my request is for you to create something that is beneficial to the people of the world, what use will you do to the world if you break the wind and form it?" Li Shimin didn't let Merton go so easily.

"Of course, it is useful, if we can measure the wind speed and direction according to the pressure and direction of the wind in the future, prevent coastal storms in advance, protect and fishermen go to sea safely, and even predict the direction of clouds based on this, it is not impossible to predict the weather in a few days." Not to be outdone, Merton said.

Li Shimin couldn't help but breathe, and couldn't wait to ask: "Can the Mo family make it?" ”

Merton's momentum suddenly weakened, and he shook his head and said: "At present, it is naturally impossible, I am afraid that the use of air pressure will be like the optics of Mosheng, without the development of thousands of years, it is impossible to achieve it with the help of specific utensils, but once it encounters optics and glass, it will play an incredible role." ”

Everyone suddenly sighed in disappointment, a thousand years is too long, and they may not be able to see it.