"Are these fireworks?"
On the edge of the playground, Li Er stood beside Li Zexuan with his hands clasped behind his back. He looked up at the gorgeous fireworks in the sky, the surprise in his eyes fleeting. Although he was an emperor on earth, this kind of dreamy and magnificent scenery was also the first. See you for the first time! He couldn't help but mutter to himself.
When Li Zexuan saw this, he couldn't help but feel a little proud. He could shock Li Er, a famous king throughout the ages. How many people in the world can do that?
But while he was proud, his eyes were still very vigilantly watching the group of students who ran to light fireworks. After all, if this thing exploded, the consequences would be very serious, so he had to always pay attention. Hold on and get ready to save people!
"Marquis Yong'an, why can these fireworks soar into the sky so quickly?"
Suddenly, Li Er asked such a "novice" question. It seems that the sky has a very strong attraction for the ancients!
"Your Majesty, Qingque should know this question, so let him explain it to you!"
Li Zexuan cupped his hands and said.
"Oh? Qingque, do you know the reason?"
Li Tai, who was standing on the left side of Li Er, stood up excitedly after hearing this and replied:
"Father, as far as I know, the reason why this firework can soar into the sky quickly is related to the gunpowder inside it! Once this gunpowder explodes, it will produce a very powerful thrust, which will make the projectile part at the top of the firework, Overcome your own gravity and fly into the sky quickly!
As for the upper projectile, its fuse was already ignited when it flew out of the pipe. The length of this fuse was calculated by Shan Chang, so it can be guaranteed to explode near the highest point every time! This is the scene we see now! "
Li Tai, who used to be unruly and unruly, has now transformed into a great master in the field of physics. He was explaining to Li Er the force analysis of fireworks and shells. Li Er, Empress Changsun, Li Chengqian, Chang Le and others were stunned when they heard this. of!
"Thrust, gravity?"
Faced with these new terms, Li Er was a little caught off guard. Although he glanced at the college's physics textbooks a few times, he only glanced at them and did not study them carefully. Of course, what caught him even more off guard was that his son just He only stayed at Yanhuang Academy for half a year. How could he know so many things that were not available in the Tang Dynasty before?
Seeing his father's face full of surprise, Li Tai's sense of accomplishment instantly overflowed. This is just like some children showing off and asking for praise in front of their parents after knowing something great. Li Tai now has this kind of desire for expression. Super strong person.
"Ahem! Father, when it comes to gravity, it's actually..."
"Okay, okay! I roughly understand what it means!"
Li Er waved his hand and interrupted his son's further "science popularization". After all, he is the supreme leader of the country. Doesn't he have no face to be "preached" by his own son?
Li Tai had no choice but to shut his mouth angrily.
Chang Le, who was on the side, suddenly had a sudden thought: "Brother Xiaoxuan, since this gunpowder can push projectiles up into the sky, can it send people to the moon?"
Li Er's eyes suddenly lit up and he turned his attention to Li Zexuan. The experience of observing space with an astronomical telescope at Yanhuang Academy that night was still unforgettable to him. At this moment, Changle's suggestion made him feel a little excited.
Although Li Zexuan said that night that it would take at least hundreds of years of technological accumulation to send humans into space, but what if there is a shortcut?
"Pfft~!"
Li Zexuan almost vomited blood when he heard this. What Changle said was a bit similar to a rocket. He didn't realize that although the little girl had not had much contact with engineering, this idea was still quite bold.
"Changle, although gunpowder is extremely powerful and can push objects into the sky, once it is ignited, it will explode instantly. It can only provide an instantaneous explosive force. We cannot control its burning speed, so it cannot provide continuous thrust. Send heavy objects or human bodies out of the land beneath our feet!
In addition, given the current conditions of the Tang Dynasty, even if a person is sent out of the earth, there is no way to guarantee his survival in outer space! After all, there is air on the earth but not elsewhere! "
Li Zexuan tried his best to explain in a language that Changle could understand.
"oh!"
Changle thought for a while, then nodded in understanding.
Li Er waved his hand and said: "Those who achieve great things don't stick to trivial matters! If you have the ability to send a person to the moon, just go and send him. As for whether that person can survive on the moon, you don't have to worry!"
Lao Li always has one obsession in his heart, and that is God! Even if he doesn't do it himself, the people under his rule can do it! This is something that the Three Sovereigns and Five Emperors, Emperor Qin and Emperor Wu of Han cannot do!
For this, if you make a small sacrifice, what does it count?
Li Zexuan rolled his eyes and said nothing. He was too lazy to argue with Li Er about this matter!
The aerospace industry is such a sacred thing. Even if Datang has the conditions to carry out manned spaceflight in the future, as long as he is here, he will not allow anyone to mess around!
Li Er knew what Li Zexuan was thinking at the first glance. He shook his head, thinking that today was New Year's Eve, so he did not blame him verbally, but secretly thought in his heart: This boy is still too kind!
.……………………
"Bang bang bang~!"
The sky above Yunshan is particularly charming tonight!
After the students in Class 1 finished setting off the fireworks, Li Zexuan asked the remaining guards of the academy to "go into battle together." First, four sets of fireworks were set off at once, and later, more than a dozen fireworks were pointed directly into the sky!
Colorful sparks soared and landed, blooming proudly in the sky. Red, orange, yellow, green, blue, and purple, everything is complete and colorful, decorating the night sky beautifully and gracefully, and illuminating the earth as if it were daytime. It’s really a night full of fireworks, with fireworks flying to welcome the New Year!
The people on Yunshan Mountain and at the foot of Yunshan Mountain have never stopped exclamating from the fourth hour to now. Most people rarely blink their eyes. They have been completely conquered by the beauty of fireworks!
But tonight's fireworks lasted unexpectedly long. A quarter of an hour, two quarters of an hour, three quarters of an hour, three quarters of an hour, four quarters of an hour, the bells of the ugly hour rang, but the fireworks on Yunshan Mountain showed no sign of stopping. While everyone was enjoying themselves, they also lamented because their necks hurt from looking up!
In the end, many people simply got some hay, spread it on the ground and lay down directly on their backs. However, wealthy children or rich masters who had the conditions asked people to get mats or quilts and spread them on the roof of the carriage, and they just lay down on their backs. Go up, this way, you can not only enjoy the fireworks in the sky, but also save worry and effort!
And Li Zexuan, after watching the fireworks for a quarter of an hour, took his wife and Lao Li's family to the top floor of the tower on the left side of Guanghua Building. Oh, to be precise, it was Li Er who took him there, because The tenth floor of the tower on the left here is the office of Li Er, the dean of the academy. Only Li Er has the key, but Lao Li has never been here before, and today is the first time!
After entering this "dean's office", several people lay down on the sofa. Through the large floor-to-ceiling windows, they could see the fireworks over the playground while lying down. It was extremely comfortable!
At four o'clock in the ugly hour, all the fireworks were set off, and Li Er stretched out. He was very satisfied with this New Year's Eve. It could even be said to be the most satisfying New Year's Eve in his life!
Comrade Li was satisfied, and of course he wanted to show his gratitude to his ministers. He stood up and said to Li Zexuan: "Tomorrow, oh, no, it's today. Today is the great court meeting. I will temporarily lift your ban. Please remember, kid." Come on time, if you are late or absent, hehe~!”
After that, he took Chang Le, Chang Sun, Li Chengqian and others away, leaving behind a dull-looking Li Zexuan!
"Damn! God! What did I do wrong? Do you want to punish me like this?"
For a long time, Li Zexuan pointed to the sky and cursed his mother.
After staying up late tonight, does he still want to sleep in tomorrow morning? Are you still attending the imperial meeting? Join the Hammer~!
That's right, Comrade Li thinks this is a reward, but Comrade Li thinks it's a punishment!
.……………………
First update!
(End of chapter)
