readytorunbook Chapter 985 Pi
Chapter 985 Pi
But let’s talk about it later, otherwise if we talk now, who knows how long it will end.
"Well, how should I put it? Just observe the jade sands and you'll figure it out naturally," Zhang Heng said with a simple look, and the mist broke through his defense.
"Can you tell just by looking at the stars? There are so many stars." She couldn't tell which one was good for which one, they all felt the same. She couldn't even tell the directions, this was too profound for her, she didn't understand it at all.
Zhang Heng nodded, it was indeed true, it could be seen many times, and Shen Kuo also nodded.
"Senior Zhang Heng, you are amazing," Li Wu gave Zhang Heng a thumbs up again. What she admired most were the ancient astronomers because she was really very very curious about how they saw it, where they saw it, and how they calculated it.
How could we distinguish which stars were which? They were so far away and we didn’t have as many tools as we have now.
How to observe the sky at night, how to observe, and where to observe?
In fact, many of our ancestors were quite curious about the sky, because they couldn’t understand it either. At night, they only saw many stars in the sky, and some of them were very bright, but they didn’t know anything else.
"Anyway, I don't understand any of this at all, and I can't understand it even if I listen to it," Li Wu shook his head. It felt like a heavenly book, very difficult, too difficult.
"Little Immortal, you don't have to be like this. Everyone has different areas of understanding. Little Immortal, you have your own area," Zhang Heng comforted him, although it was not obvious at the moment.
"That's absolutely right, that's absolutely right," Shen Kuo also agreed.
"Okay, then I'll continue talking about you, Senior Zhang Heng. I feel like I've been hit hard since I received you, the ancestors. Each and every one of you is so powerful, like a genius, which makes me seem out of place." Like a little waste who can do nothing, although that's what she is, but she doesn't want to admit it.
It must be that our ancestors were so powerful. They were able to leave their names through the ages and make a name for themselves in history. Naturally, they were all talented and powerful.
Hearing what the little immortal said, the three of them all comforted the little immortal, and the ancestors on the barrage also offered various comforts.
I'm afraid that the little fairy will get stuck in a dead end, which would be bad. Although the little fairy can't do anything, he is a very good person.
"Hahaha, don't worry, seniors. I'm very self-aware. Besides, I'm just an ordinary person. Why should I compare myself with a genius? Right?
Being able to meet you, my ancestors, is such a blessing for me. Others can't even envy me for it," Li Wu laughed, a little lewdly.
After hearing the little fairy's cheerful remarks, the three of them breathed a sigh of relief. They just needed the little fairy not to think too much about it.
"Seniors, please continue eating. I want to continue talking about Senior Zhang Heng's deeds."
"I just mentioned it," Li Wu looked at the three of them, her eyes full of questions. What was she talking about? She actually couldn't remember such things every time. Her memory was too bad. Could it be because she was getting older?
She felt that she was still young and had not grown up yet.
"Little Immortal, you just said that I can accurately calculate that the time it takes for the Earth to orbit the Sun is 365 degrees and a quarter," Zhang Heng reminded.
“I remember the strength, Senior Zhang Heng, your memory is better than mine!
In addition, Mr. Zhang Heng even derived an approximate value of pi as 3.1466. Cui Yuan, a writer of your time, praised Mr. Zhang Heng as: your mathematics is as profound as the universe, and your creations are comparable to nature.
"Senior Zhang Heng, how did you calculate pi? It's really, very close. I remember that our later pi is 3.1415926, but that's all I remember. Pi is an infinitely repeating decimal. The digits after the decimal point are infinite and repeating. Because they don't exist, no one knows how many digits there are."
When she was in school, her teacher also said that she thought it was very good that she could still remember the first few numbers. Who would bother to remember so many numbers?
"3.1415926?" Zhang Heng also muttered. He couldn't wait to study it, his eyes sparkling.
Li Wu nodded and said, "Senior Zhang Heng, you don't have to get too excited. So, why don't we go to the library today? What do you think?"
The three of them looked at the little fairy and nodded. This was a good idea. They thought so too. As for going out to play, they really didn't want to go.
Ever since the immortal mentioned the value of pi, Zhang Heng and Shen Kuo have been thinking about studying it, and they are no longer in the mood to just play around.
"Okay, little fairy, let's go to the library," Zhang Heng was still a little excited. He had already thought about what book he wanted to read.
"Senior Shen Kuo, Senior Xu Xiake, how about you?"
"I will listen to you, little immortal."
"Okay, let's make a happy decision and go to the library," Li Wu made the final decision.
"Then, Senior Zhang Heng, you followed Emperor Shun of Han. After Empress Dowager Deng died, Emperor An of Han personally led the army, and the Deng family was naturally liquidated.
Because you, Senior Zhang Heng, have a good relationship with Deng Zhi, you have not been promoted for many years.
After Emperor Shun of Han ascended the throne, you returned to your position as Grand Historian.
Senior Zhang Heng, you were often by the side of Emperor Shun of Han at that time, but you did not join the eunuch group.
Therefore, the eunuch group always regarded you, Senior Zhang Heng, as a disaster and constantly slandered you to Emperor Shun of Han.
In 137 AD, Senior Zhang Heng was finally expelled from the capital and appointed as the prime minister of Hejian.
At that time, Hejian King Liu Zheng was arrogant, extravagant and licentious, and did not abide by the law. In addition, many powerful people gathered together to cause chaos.
After you, Mr. Zhang Heng, took office, you strictly enforced the law and discipline, cracked down on the powerful, secretly found out the names of the treacherous party, and arrested them all at once. Everyone in the society was in awe, and you, Mr. Zhang Heng, were known for your integrity.
But at that time, Senior Zhang Heng, you also realized that the court was corrupt and it was difficult to realize your ambitions, and you also wrote a lot to express your feelings.
In 138 AD, Mr. Zhang Heng wrote "Return to the Countryside" and requested the court to end his foreign mission and return to Beijing to take up his post.
Emperor Shun of Han graciously allowed you, Mr. Zhang Heng, to return to the court and appointed you as the Secretary of State.
The following year, Mr. Zhang Heng died in office as a Minister of State in a depressed and sad mood in his later years. He was 62 years old.
Senior Zhang Heng was buried in your hometown of Xi'e, Nanyang, and was posthumously named "Marquis of Xi'e" in the Northern Song Dynasty.
I have finished telling about your deeds, Senior Zhang Heng. After the death of Empress Dowager Deng, the Eastern Han Dynasty gradually decayed.
I think you, Senior Zhang Heng, knew about it at that time, but even though you knew, you were often powerless to do anything about it, no matter how powerful you were," Li Wu looked at him.
Zhang Heng smiled bitterly. Although he had not experienced those things yet, how could he not know them? A dynasty could not be changed by him alone. He was powerless and could only watch.