Tiantang Splendid

Chapter 2295 Pendulum Clock
What is "Heaven-human induction"?

To put it simply, it means that heaven and human beings are of the same kind and interact with each other. Heaven can intervene in human affairs, and human beings can also respond to heaven.If the Son of Heaven disobeys the will of God and acts unkindly and unrighteously, there will be disasters and catastrophes to condemn and warn; if the emperor is diligent in government, loves the people, understands harmony among people, the heaven will send auspicious signs to encourage...

Confucius wrote "Spring and Autumn", and believed that disasters and disasters were caused by the loss of virtue of the monarch. He once said: "The severe drought in the country is not due to the loss of punishment and virtue?"

When the country is going to prosper, there must be auspiciousness; when the country is going to perish, there must be evildoers.Seeing the yarrow turtle, moving the four bodies.

This is the theory of "interaction between heaven and man"...

It was like a sharp sword hanging over the emperor's head.

If the emperor did something bad, he would receive a warning from heaven to punish him, and he would naturally feel guilty, so he quickly corrected the evil and returned to the right; " How can you not feel aggrieved by the disaster?

Emperors throughout the ages have gritted their teeth and hated this theory of "interaction between heaven and man", but Confucian disciples firmly believe in it. Whoever dares to question is going against the sky. After a while, the emperor must realize that he was wrong.

His Majesty Li Er is like this.

Well, it's not that he feels wronged because he didn't do anything, but that he has done a lot of bad things and feels guilty, and he feels anxious every time there is a disaster, lest the officials coerce him to issue a "criminal edict"...

His Majesty Li Er was delighted to hear Fang Jun's argument that all these were natural phenomena and could not be interfered by manpower.

Good son-in-law...

Hurry up and ask Li Chunfeng to calculate the time of the solar and lunar eclipses. This is exactly the responsibility of the Taishi Bureau. As long as Fang Jun can prove that he is right, the sharp sword "Induction between Heaven and Man" can be thrown into the latrine by His Majesty Li Er. Never get angry again.

Li Chunfeng is indeed the greatest mathematician of this era, and the word pedantic heaven and man is the best annotation for him.

He was calculating the laws of solar eclipse and lunar eclipse very early on, but he didn't know the bottom line, so he was not firm enough to implement it. He just calculated it when he had nothing to do, and the scale and accuracy were far behind. It has been unsuccessful.

Now that the imperial decree was issued, Li Chunfeng immediately summoned all mathematics scholars from all over the world to the Taishi Bureau, and mobilized the entire Taishi Bureau to jointly calculate the laws of solar and lunar eclipses.

In fact, in the "San Tong Li" of the Han Dynasty, there is a calculation of the solar eclipse, and it is believed that the occurrence of a solar eclipse has a cycle of 130 synodic months, but this cycle is only a rough estimate, and it is not possible to determine the occurrence of a solar eclipse or a lunar eclipse. exact time.

On the basis of "San Tong Li", Li Chunfeng conducted in-depth research, and through the calculation of Arabic numerals, he became more and more confused. The path seems to be correct, but there will always be errors of one kind or another that lead to inconsistent results.

Since it is inconsistent, it means that it is wrong.

But where is the problem?

In the end, these highest-level mathematicians of the Tang Dynasty came to a conclusion, that is, the time error...

To put it simply, it is because the calendar is not perfect, which leads to too many errors in the calculation.

If you want to accurately measure the time of solar and lunar eclipses, the most urgent task is to perfect a new set of calendars, and the prerequisite for perfecting the calendars is to have a more accurate time measuring instrument—dividing a day into ten A sundial with two hours is unqualified, because the calculation of the zodiac shows that the time of a day is not a complete twelve hours, or more, or less...

How to make a more accurate instrument to measure time?
Li Chunfeng once again demonstrated his amazing scientific talent.

……

"Please look, Your Majesty, this is the new mechanism for measuring time developed by Weichen..."

In the house beside the stream in the mountains of the Academy, Li Chunfeng explained his new machine to His Majesty Li Er who came to inspect.

"In the beginning, the pivot wheel was held against the spokes by the left and right sky locks, and the entire pivot wheel could not rotate. When the water poured into the jug reached a certain weight, the grid fork could no longer support the water jug, and began to fall. Then it descends, and the iron teeth installed on the side of the pot hit the switch tongue downward. The tongue pulls the Tiantiao attached to it, and the Tiantiao pulls down the Tianquan end of the Tianheng; the Tianguan end of the Tianheng is lifted accordingly. When the Zuotian lock is opened, the pivot wheel is allowed to rotate one spoke under the gravity of the water in the kettle... Repeatedly, one capture, one vertical, one retraction, one release, Therefore, Weichen named it the escapement machine."

His Majesty Li Er, who has always been wise and mighty, seems to be looking at the sky at this moment, with a bewildered expression on his face...

However, driven by the water flow, the entire escapement operates slowly, and finally acts on the scale, beating the drum every second, and striking the clock every hour, and gradually understands.

Fang Jun was shocked to the side...

motherfucker!

Isn't this just hitting the clock?
What a genius!It seems that these principles were not invented until the monks and his party built the armillary sphere for water transportation. Is Li Chunfeng more powerful, or these principles have already been published, but have not been applied?
Fang Jun didn't have an answer, but when he looked at this primitive clock strike, some memories suddenly flashed in his mind...

"This machine is extremely delicate, and the principle is even more insightful. However, after a long period of use, the gears will inevitably wear out, which will cause the progress of the scale to slowly lag behind. This seems to be a very small error, but for the measurement time, it is even worse. It's a thousand miles away."

Saying this is tantamount to denying all the achievements of Li Chunfeng, which is a bit out of date.

But Fang Jun feels that when dealing with science, he must uphold a rigorous atmosphere, and should not be humbled by factors such as favors.

Although Li Chunfeng is in the officialdom, his essence is like a Taoist boy who is closer to a scientist. He was not annoyed by Fang Jun's speechless words, but just smiled wryly: "The poor Taoist naturally knows this truth, but he can only use a stronger Fine steel is used to manufacture gears to minimize errors."

His Majesty Li Er frowned, stared at Fang Jun with his hands behind his back, and said displeasedly: "This kind of machine can already be called a wonderful workmanship, and Taishi Ling's contribution is indispensable. How can you allow you to pick and choose here and deny it? You are really capable. You build a better one, or just shut up and stay aside."

He has long been conquered by this sophisticated machine, even though he has a lot of love for Fang Jun in his heart, he can't see him picking bones here.

Fang Jun was speechless, what did you say?

Typical "you can do it, don't beep if you can't"!
When a problem is discovered, it must be brought up, and then people will concentrate on solving the problem. This is a prudent scientific view, rather than knowing the flaws and prevaricating.

Li Chunfeng's eyes lit up, he took Fang Fangjun's hand, and said happily: "Could it be that Erlang has a better way? Don't care about the poor face, as long as Erlang has a better way, even if he smashes the escapement with his own hands. What's the matter?"

All the officials of the Taishi Bureau were watching, and no one was angry at Fang Jun's fault-finding, because they all knew that the reason why this escapement was able to appear was to rely on other people's arithmetic theory, otherwise even if it was created, there would be no error. It would also make its existence worthless.

Besides, no one in the world knows that Fang Jun is the most proficient at such strange skills...

Fang Jun glanced at His Majesty Li Er, since you said to me, "You can go ahead, if you can't, don't beep", then we really have to show you what is called technology that transcends time and space!

He rolled up his sleeves, pointed to the escapement and said: "The precision of this machine is already unprecedented, but it is an indisputable fact that the error will gradually increase due to the operation of the gears. Therefore, we can continue to use this principle, But replace the gear with a pendulum."

Everyone was bewildered.

Li Chunfeng was confused: "What is the pendulum?"

Fang Jun: "..."

Yes, there is not a single clock in the world, and who can know what a pendulum is?
Since we don't even know what a pendulum is, who can know what is called "isochronism"?

Hey, the road of scientific plagiarism is a long way to go...

He looked around, took four nails, and took two threads, cut the threads into equal lengths, and then tied nails on both ends, nailed one end of the nail to the door frame, and the other end hung down.

Everyone stared blankly at the two wires hanging from the door frame, and there was a nail hanging from each of them...

What is this for?
Fang Jun held a nail in one hand, lifted one of them to a slightly larger angle, and the other to a smaller angle, and then let go together.

"Everyone, please look, pay attention to the timing of each swing of these two nails..."

(End of this chapter)