"Father, this is a scientific experiment conducted by the students of the academy, don't panic!"

Yu Zhiqian hurriedly explained to his father that Zhao Yunqiang couldn't help but didn't draw his knife, huh? Zhao Yun with a knife?

"Oh? What experiments did he do? ”

"Father, he is doing flight safety experiments!"

“？？？”

The emperor looked at Yu Zhiqian with a confused expression, Yu Zhiqian could only run his brain rapidly, and finally forcibly explained, he couldn't say that his father was sick in the brain and was doing a parachuting experiment, and the content of the experiment was to let the person who jumped off the cliff land safely? How strange, who would take the initiative to jump off a cliff if they are fine? Yu Zhiqian was afraid that after he said it, the emperor would use his own funds to cultivate a group of neurotics.

"Father is like this, Cheng Chumo is conducting glider experiments, as well as hot air balloon experiments, these experiments have a common problem, that is, let people fly into the sky, but as we all know, after people fly to the sky, they will fall to death if they fall, how to land safely, has become the focus of these students' research, after all, we are the college, it is impossible to die a student in an experiment, so someone specially carried out a parachute experiment! This parachute is designed to ensure that the flight personnel can land safely! ”

Yu Zhiqian wanted to give a thumbs up to his wit, he was so smart that he could think of such a wonderful reason, even Wang Zheng next to him didn't expect that his experiment would have such great significance, he just wanted to make something that would not fall to death if he jumped from a height, and couldn't help but give Yu Zhiqian a thumbs up, worthy of being the principal, far-sighted!

Yu Zhiqian looked at his cheap father's eyes, and the emperor nodded suddenly: "It's still the prince who thinks about it, I just thought of the heavens, and I didn't think of the rest of the problems, these students are all pillars of the country, not to mention that there are deaths, even if someone is injured, I am also very heartbroken, the prince is good!" ”

Yu Zhiqian immediately smiled, and couldn't help but praise his wit, he was really smart, and he was able to find a reason to come back so quickly, tsk!

"Father, further forward is the core area of our Tsinghua Park, the research and development area, where you can see some of the things we are studying, these things are cross-era products, once successful, our dynasty will undergo earth-shaking changes, father, you are careful steps, father, these inventions have cross-era significance, but these inventions need to be constantly tested, so the cost of consumption is very large!"

Yu Zhiqian led the way again and again, and constantly instilled a concept in the emperor, that is, it is very expensive to engage in scientific research, and the ministers have no money, and if they want to continue, and if they want to see Tsinghua Garden blossom and bear fruit, then give money.

The emperor followed Yu Zhiqian, constantly looking at Tsinghua Garden, but he didn't mention money, he kept looking left and west, and even used his hand to buckle the stone, but he couldn't hear Yu Zhiqian's hints, as if he blocked Yu Zhiqian.

"Well, this stone was put down by me myself, and I ...... But why does this stone have such a small water hole? ”

At this moment, a drop of water dripped from the square and landed in a small puddle.

"Father, this is a student in order to verify the authenticity of the water drop stone wearing, is doing an experiment, you look up, there is a water pipe on it, control the speed of the water flow, three or four seconds will drip a drop of water, simulate the process of water droplets falling in the natural environment, someone will specifically record, see how long it takes for water droplets to penetrate the stone!"

"Can water really drip through stones?"

The emperor also looked at Yu Zhiqian with some curiosity, and Yu Zhiqian nodded: "It should be okay, but the small hole I see now is not formed because of water droplets, but a piece that has been dug out artificially for more convenience......

"When the experiment is successful, let me know!"

After Yu Zhiqian heard it, he couldn't help but smile a little embarrassedly, it seems that there is a saying in the royal family of the Yu Tang Empire, the water droplets finally wear the stone, and the family sacrifice has not forgotten to tell the emperor, don't say that Yu Zhiqian has no chance to report this matter to the emperor, even Yu Zhiqian himself estimates that he will have to wait for future generations to report this matter to himself, and he doesn't know how many grandsons he brings, maybe the Yu Tang Empire is gone.

Soon the emperor saw a strange person again, who was holding an iron rod and rubbing it on the whetstone, this guy should be a guy who was going to test the iron pestle and sharpen it into a needle, Yu Zhiqian suddenly regretted a little, he just dealt with the visible danger, but this group of people with funny brains and more axes should also be cleaned up together.

At least this group of people shouldn't stay here, and for the same reason as before, if the emperor thought he was going to spend money to support this group of idiots, the emperor might be.

"Your Majesty, have you ever heard an iron pestle sharpened into a needle?"

The emperor shook his head, and Yu Zhiqian didn't explain too much, but when he passed by, he took a closer look at the guy who was sharpening the iron pestle, and said to himself: "It seems to be a stupid child of the third family!" ”

The emperor's so-called third brother is definitely not Yu Zhiqian's third brother, but his younger brother, several brothers of the emperor, they all get along well, so some of the prince's sons are also in Beijing.

But soon the emperor forgot about these things, and followed Yu Zhiqian to the test site, and the emperor glanced at the student who greeted him: "That is Cheng Chumo?" ”

"Yes!"

"I've lost a lot of weight, and I almost didn't recognize it!"

Cheng Chumo has indeed lost a lot of weight, Cheng Chumo used to be strong, but now he looks a lot stronger, the whole person looks smaller, but his eyes are not as good as before, flashing with wisdom from time to time......

"The student has seen Your Majesty!"

A group of people saluted the emperor, and the emperor nodded with satisfaction: "Well, let's be exempt, prince, let's start!" ”

"Whoa!"

Yu Zhiqian waved his hand vigorously, and then the students in front of him scattered.

"I don't know what my father is going to see first?"

The emperor pondered for a moment: "Let's take a look at gunpowder first, you said that gunpowder will become a sharp weapon of our army, I am really curious!" ”

Hearing the emperor's words, Yu Zhiqian smiled: "No problem!" ”

Yu Zhiqian said to the people behind him, and immediately someone brought out the gunpowder that had been prepared, but for the sake of safety, there was still a distance from the emperor.

"Move closer!"

The emperor squinted his eyes and didn't see clearly, after Yu Zhiqian heard it, he immediately handed a telescope to the emperor: "Father, gunpowder is very dangerous, you can't get too close, gunpowder is very unstable these years, although it has been protected multiple times, but after all, it is gunpowder, the ghost knows if it will come suddenly......"

"Dangerous?"

The emperor thought about the fireworks given to him by the crown prince, and didn't think it was too dangerous, but seeing that Yu Zhiqian didn't look like he was joking, he didn't ask too much and let Yu Zhiqian prepare.

Yu Zhiqian breathed a sigh of relief after seeing that the emperor was not willful, he was afraid that his father would have to see what gunpowder looked like, but fortunately his father was not the kind of willful person.

"Liu Yang, go, prepare for gunpowder detonation!"

"Whoa!"

About five hundred meters away, there was a section of the newly built city wall, and Yu Zhiqian pointed to it: "Manager Zhao, please go and experiment to see if the city wall is strong!" ”

Hearing Yu Zhiqian's words, although Zhao Yun didn't know what he was going to do, he still nodded: "Okay!" ”

After finishing speaking, he quickly came to that section of the city wall, carefully inspected it, and finally came to the emperor: "Your Royal Highness the Prince, this city wall has been inspected, and it is already the standard for the construction of the general city wall!" ”

"Prince, what do you want?"

"Father, you'll find out in a moment!" After Yu Zhiqian finished speaking, he smiled, and also took out the binoculars from his sleeve, observing the preparations of Liu Yang and others.

I saw Liu Yang and others holding gunpowder canisters one by one, carefully burying the gunpowder canisters into the position below the city wall, the speed was very fast, about three minutes later, it was completely buried, and then the fuze of gunpowder slowly extended from the edge of the city wall for more than 20 meters.

"What is this?"

"Father, after the gunpowder explosion, it is extremely powerful, and there may be no people and animals around, so you need to ignite the fire from a distance, even if it is twenty meters, it is not a safe distance, this group of guys, don't listen carefully to the words of the sons, and the sons will punish them well later!"

Yu Zhiqian said with some annoyance, twenty meters is only the closest distance among the safe distances that Yu Zhiqian said, according to Yu Zhiqian's meaning, at least more than fifty meters is considered a little safe, twenty meters? If you run slower, you might be able to get swayed.

When the emperor heard Yu Zhiqian's words, he didn't feel much, and even felt that Yu Zhiqian was making a fuss.

Soon after the fuse was laid, Liu Yang took out the fire fold, gently put a little on the fuse, and then began to run back quickly, the gunpowder exploded, Liu Yang had seen it countless times, so he knew the power of the explosion very well in his heart, as for why only twenty meters of the seal was left, because Liu Yang felt that with his own running speed, he could definitely run to a very safe position.

"Well, his name is Liu Yang?"

"Yes, it seems to be the second son of the Wuwei Hou family!"

Yu Zhiqian thought carefully about the information of Liu Yang in his mind, when Yu Zhiqian accepted students, he didn't care too much about the family background of this group of students, but generally speaking, students who can come to Yu Zhiqian's Tsinghua Garden and become a first-term student, few families are ordinary, at least the son of a county marquis, as for the second son of the prince, the king of the county or something, don't have too much, Yu Zhiqian is too lazy to remember, how can there be a saying? There is no class to teach!

After hearing this, the emperor nodded: "Well, he has his father's demeanor, his father was still a herald in the army, and he ran as fast as him!" ”

“……”