2,600 years ago, the middle-aged and wealthy Duke Qi Huan sat on his throne and played with his temper and made trouble:

"Someone, give it to me...... No, gather all the bellsmiths in the world for Lone, and if Lone wants to cast a bell, no one will stop me!"

Phew, it's great not to give money! Lao Tzu has money!

Do you still need permission to cast a bell?

Lao Tzu likes to cast as many bells as he likes!

Believe it or not, I can ring the bell from your birth to the first seven!

If you have no money, if you don't have money, you will send troops to fight Shanrong, and if you have no money, you will go to fight the Di people! If you have no money, you will go to attack Cai, and if you have no money, you will go to attack Chu!

Hit it all around, and I don't believe that there is no money!

Let Wei pay tribute to Gu! Let Chu pay tribute to Gujin! Let Lu pay tribute to Gu! Let Song also pay tribute!

Next to him, Uncle Bao and Guan Zhong both shook their heads and were speechless, isn't it just a bell? What a big deal, which prince and doctor, why don't you have a few chimes at home?

If you cast a few small bells, it will be enough to attract the Dongguan clan, and if you cast a few more, the clocksmith in Linzi will be enough.

But Gu Xiaobai was not satisfied: "I want to cast many, many bells!

They had just gathered the coppersmiths in Linzi, and Gu Xiaobai came out again: "Lone wants to cast the bell in person, and the state affairs are handed over to Guan Zhong to manage, Lonely, Lone is to cast the bell!"

"I want to cast a two-tone clock, a two-tone clock with a frequency accurate to 1hz, come and come, bring me the Twin Bells, and I will talk to him! I don't understand the fundamental frequency formula of this plate vibration, FMN is equal to πh divided by two times the square of R, and then multiplied by the root...... This shell vibrates in direct proportion to the thickness of the shell and inversely proportional to the square of the major axis of the ellipse...... These must be written down, and they must be tested!"

Knock on the blackboard!

Clan: "Please cut down the ministers!"

"What the hell is this, don't learn it...... It smells so good!"

Therefore, it is recorded in the "Examination of the Gongji: 凫氏"凫氏 is the clock...... Ten of its milling, go to the second to think of cymbals...... With the length of the cymbal, it is the long, and the long is surrounded by the long. Participate in its encirclement, go to one to weigh the encirclement. Divide its length, two on the top, one on the bottom, in order to set its rotation. Where the thickness is vibrating, where the turbidity comes out...... Therefore, the big bell is very thick between the drums, and the small bell is very thick between the cymbals. If the bell is big and short, its sound will be fast and short, and if the bell is small and long, its sound will be comfortable and far away. Therefore, six points of its thickness, one of which is deep, and the circle of ......"

Such a scientific discourse, until modern times, can be called the most advanced and perfect technical discourse on chimes, and it is the commanding heights of chime technology before modern society. Everyone who reads this exposition will be amazed that such a superb and precise statement actually appeared more than 2,000 years ago, and the wisdom of the ancients is truly incredible.

A certain tearful Lady can probably testify that there is really something else to hide. (Plot, don't take it seriously, many of the technological achievements of ancient China are really super awesome...... ）

After the Qin Dynasty, in Chinese history, the casting technology of chimes was cut off several times, and whenever the technology was cut off, scientists and craftsmen would open this pre-Qin technical treasure book, ask for the wisdom of a pre-Qin master, and then restore it again......

Until modern times, according to this exposition, coupled with modern scientific and technological means, modern people have completed the empirical formula of the fundamental frequency of chimes - Chen Tong and Zheng Darui formulas, and once again unveiled the mystery of the vibration of two-tone bells...... This is already 2,600 years later.

However, even if the Qi country is so strong, if it wants to cast dozens of bells with such high requirements at one time, it is not enough, if the bell is cast slowly, Gu Xiaobai feels that he can't wait.

Okay, let's do both!

Isn't there another place where we can have the final say on trivial matters?

2200 years ago, Liu Che was a little unhappy recently.

This nephew of his own, I don't know where he got his bad habits, he just likes to be in the palace.

You said that this kid is such a big person, and he is a nobleman with great military achievements, so he can't do something to bully men and women, and people and gods are angry to do something?

Isn't it common to bully a beautiful little girl, bully all kinds of heroes, and slap your face in the street?

Even if you don't do this kind of bad thing, you continue to go to Keju, aren't you still obsessed with Keju every day before?

I will select the best players for you from the army, today I will abuse Li Guang's own soldiers, tomorrow I will abuse the Dong family children team of Dong Zhongshu's family, form a Han Dynasty big league, and play in the commercial league, wouldn't it be happy?

In this world of flowers, there are so many fun and beautiful things, people just don't like it.

People like the longitudinal horse palace, all kinds of longitudinal horse palace.

I wanted to discipline it, but I was almost torn by the queen's hand.

It doesn't matter what it teaches...... I always feel that it is not good.

It is said that loving mothers are many defeated children, and my proud protégé nephew, what if he is raised!

After thinking and meditating for a long time, Liu Che finally came up with an idea, discussed it with Wei Qingyi, and the two hit it off, and the "Uncle Lang 2" combination was very happy.

A few days later, Liu Che summoned Huo Quai, and said happily: "Go sick, you see that you are not young anymore, and it is not a problem to mess around in the palace all the time, and it is not too convenient to live in your uncle's house after all." Besides, you should be rewarded for your great military exploits now. You see, I have prepared a big house for you, and I have also prepared three stables, dozens of good horses, how do you like to ride horses...... Go sick, it's not that I want to drive you away, but this palace is deserted, what's the fun, you have your own mansion, you can bully men and women, you can cause trouble in Chang'an, you can take your own soldiers to kill the Quartet, and achieve a generation of Keju hegemony, isn't it much better than riding a horse in the palace?"

Then, he heard his eldest nephew straighten his clothes and said solemnly: "The Huns have not been destroyed, why should they be ...... home?"

At that moment, Liu Che's tears were about to fall.

This kid, woo woo woo, deserves to be my favorite nephew and most proud protégé!

Then he heard the eldest nephew say again:

"Why don't you cast a bell for me!"

Liu Che: "??????"

What the heck?

In Weiyang Palace, outside the main hall, there was a long table, a hot tea, Liu Che and Wei Qingjunchen drank each other, and Uncle Lang's 2 groups reunited, all of them were a little worried.

If in the past, before this long table was set up, it is estimated that the night would have pouted the horse's hooves and galloped with sand and dust.

But today is very quiet, the tea is tasteless, and the man and horse have not yet appeared.

"Sick this kid...... Aren't you really sick......"

"yes, what's wrong with being obsessed?

"And he goes into battle by himself every day, and is with some coppersmiths and musicians all day long......"

"I think it's better to be in the Zongma Palace......"

"Seconded. ”

Worried......