Compared with the armillary sphere, the armillary sphere is relatively simple. It is composed of several rings, each representing the meridian, the ecliptic, the equator, etc., and each ring is marked with various coordinates and scales.
There are one or two viewing tubes in the middle for observing astronomical phenomena. If Li Chengzhi took the trouble to make two concave and convex glass mirrors, or grind two pieces of colorless crystal and install them on them, this thing would be an astronomical telescope.
To put it simply: the armillary sphere is like a globe with drawn longitude and latitude lines, dividing the sky into one area after another. Which star Hou Xinglang wants to see can be found in the fastest time by pointing it up to the sky with the armillary sphere.
Found here.
There is such a thing standing at the Capital Airport in Beijing, but the strange thing is that the description of the thing talks about the function of the celestial phenomenon, saying that it can perform celestial phenomena with water dripping... When Li Chengzhi was in college, he wanted to call him more than once.
Capital Airport, I suggest they give it a try with a secondary driver to see if it can work...
Both of these are treasures of China. Even counting from Zhang Heng of the Eastern Han Dynasty, they were hundreds of years earlier than the invention of similar instruments in foreign countries.
Earlier than this, it should be the Warring States Period. China has already observed that a year is 365.25 days, which is the origin of the "Four-Minute Calendar". It is only 11 minutes longer than the Gregorian calendar implemented in later generations.
There is even more magic. "Zhou Bi Suan Jing", which is the book where the Pythagorean Theorem is written, was probably written in the middle of the Warring States Period. It says:
Around the North Pole, there is endless ice in summer...this is about the North and South Poles.
Around Zhongheng, there are immortal grasses in winter... This is about the equator.
Under the North Pole, the day is from the vernal equinox to the autumnal equinox, and the night is from the autumnal equinox to the vernal equinox...this is called polar day and polar night.
Of course, someone else calculated this... When he saw these sentences, Li Chengzhi wanted to kneel down and kowtow to the book!
So awesome...
Just when I was thinking about getting involved, I heard a bell ringing in my ears.
Li Chengzhi took a look and saw that the engraved needle of the large funnel not far away was pointing at noon.
This thing is also quite advanced: four large boxes are arranged in a ladder from high to bottom. Water is used in summer and fine sand is used in winter. There are gears, floats and other mechanisms inside the box, and there are scales and needles outside the box. Sand or water
Every time the scale drops by a quarter (14.4 minutes), the gear will drive the connecting rod to ring the bell outside the box.
The eunuch's time department, the palace watchmen, and the watchmen in the square relied on this clock to tell the time. Every prefecture, prefecture, and county had such a device...
Geng Chang reminded in a low voice: "Lang Guan, it's time to go to court!"
Li Chengzhi raised his head and took a look. A group of courtiers poured out from the Tai Chi Hall, dark and dense, like a swarm of ants.
"Then go back!"
……
Back at Taichang Temple, Li Chengzhi did not rush to find Liu Fang and Cui Guang, but settled the lunch problem first.
There is a special hall for eating, where one person, or two or three people sit around a table and eat the food they bring.
Just such a lunch can reveal the family background of officials and their families.
Most people eat millet rice, which was also the mainstream food during the Northern and Southern Dynasties. They are steamed and mixed with pickles, such as tempeh, bean paste, pickled cabbage, pickled cucumbers, pickled leeks, pickled eggplants, etc., and more sophisticated meat mixes.
Sauce. The more distinctive one is a kind of rice that is cooked with raw corn, maltose, vinegar and other sauces for ten and a half days, which is called "駧".
When he first traveled through time, Li Chengzhi was extremely surprised: It felt like there was nothing that the ancients couldn't pickle. Not to mention wild vegetables, twigs, young leaves, etc., there were also frogs and mice...
Later, when I learned more about it, I became accustomed to it: like the monks who farmed the land for the monks, people would starve to death from time to time in good years. Anything that can fill the stomach is naturally a good thing...
No matter how well-off the family is, some still eat flour cakes and rice cakes. This is because flour and rice are more expensive, and the price is about two to three times that of refined corn.
Various kinds of cakes: Marrow cake: made of marrow fat (animal fat) and honey (honey), it is four to five minutes thick and six to seven inches wide...it is actually the current puff pastry.
Similarly, they all use honey and dough, either dead dough or leavened dough, or baked, baked, or fried. Some will also have fillings inside, either honey, sweetmeal, or meat, and the cake will be sprinkled with sesame (sesame), which is uniform.
It’s called white cake.
"Gaohuan" is flour or rice noodles rolled into strips and fried, similar to sprinkles and twists. The thinner rice noodles are called "can" cakes, and the wider rice noodles are called "dolphin skin" cakes. They can be steamed, boiled or fried.
All.
There was glutinous rice steamed with honey, maltose, and various dried fruits, which was no different from today's eight-treasure rice. It was sun-dried and deep-fried, and it tasted crunchy and crispy, just like Shaqima. These two types of rice are collectively called "white rice".
"Cocoon".
"Chicken and duck" cakes are egg or duck egg cakes. "Shuiyin" refers to soup noodles, and "Fufu" refers to soup noodles. The noodles are all mixed with broth and are collectively called soup cakes.
There is also an ancient version of meat pancakes or pancakes: cut into long slices with vinegar and melon, grilled fat meat, raw mixed vegetables and other pancakes are quickly rolled into pancakes... This method was passed down from the Western Regions and is called Hu pancakes or Hu pancakes.
Rice.
White rice is also available, but it just became popular in the Northern Dynasties. Because the cooking method is relatively monotonous, officials are not very fond of eating it.
People from poorer families eat beans and rice, but almost no one eats wheat rice. The reason is that the skin of this thing is too thick, and the beans cannot be steamed, pounded, and hard to swallow.
It is rare for people like Li Chengzhi to eat four or five dishes, all of which are meat. Not even Liu Fang and Cui Guang eat like this. Of course, it is because the two old men have small appetites and cannot eat so much.
When Geng Chang helped him open the food box and take out the food, the officials nearby were stunned.
Is it so tough?
A box of enema weighs two kilograms: mutton, onions, garlic, leeks, ginger, etc. are chopped into pieces and stuffed into the intestines with salt, pepper, etc., or steamed or boiled.
A box of roasted liver: similar to the enema method, the liver, lungs, seasonings, etc. are wrapped in sheep tripe oil and roasted. In later generations, it was called fake kidney in Xinjiang, and it was called fat-wrapped liver in Gansu, but it is not delicious when it is cold.
The third item is a box of scrambled eggs, and the fourth box is a portion of fried pork, which is fried pork... These four items were not created by Li Chengzhi, but existed in the Yuan and Wei Dynasties. The last box is:
Crystal elbow.
Peel off the bones of the elbow and cook it thoroughly, press it into a wooden box with the skin facing up and the meat facing down. Then pour a layer of thick broth or sauce made from pig skin on top, and cool it in a well or vat. p>
The rice is made into balls to prevent it from going rancid in the hot weather. Salt is added to it and wrapped in lotus leaves. Just looking at it will make you want to eat it.
Li Xie did it right after he got up at midnight, and the old man was quite happy: Lang Jun finally didn’t have to go out to restaurants, and he could save a lot of money...
Not to mention the officials, even Taishi Ling Zhao Sheng and Taile Ling Gongsun Chong came over with curious faces. The two looked at the food and then at Li Chengzhi, as if to say: What are the conditions of your family?
Li Chengzhi smiled and handed over two pairs of chopsticks: "You two envoys, would you like to have a taste?"
The two men were not polite, but they didn't take the chopsticks and went straight to it. They picked up two pieces of elbow and tasted it. Gongsun Chong couldn't help but nodded: "Well, it melts in your mouth, salty and smooth, not bad!"<
/p>
Li Chengzhi beat the snake and put it on the stick: "If you two envoys don't mind, I will ask my servant to cook two kilograms and deliver it to the house tomorrow..."
Even though he is the "order" of the seventh rank, there are still people who have been promoted. Especially Gongsun Chong, in addition to serving Shizhong and Shizhong (both senior advisers to the emperor), he is also the Tailejijiu (Taichang Qingzongguan)
, from the third rank, in charge of rituals and music). When the imperial court formulated the rituals and music system, even Liu Fang and Cui Guang had to help him.
More importantly, this is the teacher of Gao Wenjun and Li Chengxian...
Gongsun Chong chewed the meat and nodded casually.
Li Chengzhi was overjoyed: This is a truly learned man, who can be said to be knowledgeable about the past and the present. All ancient ritual systems, including degrees, measures, quantities, etc., are all perfect. Otherwise, he, who studies rituals and music, would not have been asked by the emperor to formulate the calendar. I'll definitely be able to use it in the future, so I'll flatter you first...
Someone muttered "Here comes Zhongshu", and the group of officials dispersed, leaving only the two officials and Geng Chang.
Zhao Sheng and Gongsun Chongzheng ate delicious food. Zhao Sheng pointed to the food box and said, "Try the temple minister and the sacrificial wine, too?"
The two came to court after a banquet. Liu Fang shook his head, Cui Guang glanced at the food box, stared at Li Chengzhi and sneered: "Excessive luxury... Your Majesty can't eat as well as you!"
Li Chengzhi was a little embarrassed, secretly cursing: Do you think I don’t know, the emperor doesn’t eat meat...
Perhaps he had something to talk about, so Liu Fang called Gongsun Chong and Zhao Sheng away. Jiyu officials were too embarrassed to come around again, and after the case was over, only Li Chengzhi and Geng Chang were left.
Geng Chang ate corn rice mixed with pickles. Li Chengzhi invited him to eat together, but Geng Chang just shook his head.
It's a big taboo to talk briefly and talk deeply, but Li Chengzhi doesn't force it.
Geng Chang finally understood why Li Chengzhi brought so much food: four or five dishes only weighed three to four kilograms, and seven or eight rice balls weighed two kilograms or more. However, Li Chengzhi's chopsticks were as fast as flying, and he ate all the crumbs in just one moment.
It’s better to have nothing left, as if the intention is still unfinished?
The officials in Sakon seemed to be frozen, and their eyes could not move.
There was a gust of wind and clouds, and Li Chengzhi cleaned up the mess in a few moments, wiped his mouth and went to find Liu Fang and Cui Guang.
"You want to create simplified numbers?" Zhao Sheng frowned, "What are simplified numbers?"
Gongsun Chong also looked surprised, but the two old men just bent their eyes and smiled.
Occasionally they look at each other, as if to say: Look, the fox’s tail is exposed, right?
It was too troublesome to explain. Li Chengzhi looked around, pulled out a piece of paper, took out a pencil and said: "Just simplify the calculation and use a charcoal pencil to check the calculation on the wooden board, or even use a stick on the ground to do the calculation. The advantage is
You can calculate and remember at the same time, and save space..."
"Are you going to give a question?" Cui Guang said with a smile, "I'll give it to you: Today there is a field with a width of 87,654 steps and a length of 45,677 steps.
Eighteen steps, what is the geometry of the field (area)?"
Li Chengzhi listed a vertical multiplication formula on the paper: eight seven six five four * four five six seven eight, and muttered: "Four eight thirty two into three. Five eight forty, forty three..."<
/p>
In just seven or eight breaths, Li Chengzhi gave the answer: one thousand six hundred and eighty-two thousand seven hundred and forty-seven and half acres and half minutes (one acre, 240 square steps).
Looking at Zhao Sheng next to him, he hasn’t even made the plans yet?
Zhao Sheng took a slight breath: "So fast?"
Li Chengzhi nodded and said: "This is a product. If you want to find a quotient, the method is the same..." Then he listed the vertical division method in the shape of "factory", which is also seven or eight times, and the product will be obtained.
I checked it again and it was absolutely correct.
Zhao Sheng and Gongsun Chong looked at each other.
To say how difficult Li Chengzhi's algorithm is, it is not necessarily clear: the numbers are still numbers from one to ten, and the algorithm still uses Jiujiu Ge, but the horizontal algorithm is replaced by a vertical algorithm.
But why didn’t anyone think of it before?
Absolutely convenient: neither magicians nor magicians need to bring a calculation chip, they can bring a charcoal pencil or not. You can also do calculations with a stick or stone on the ground...
"You mean it can be simplified, how?" Gongsun Chong asked.
Li Chengzhi rolled his eyes: "It will definitely be faster after simplification... But I haven't figured it out yet, so it will probably take some time..."
Zhao Sheng was overjoyed: "Can it be faster?"
According to what Li Chengzhi said, it doesn't matter whether you save money or not. Saving space is secondary, and saving time is not the key. But there is a record when calculating. Warlocks and magicians no longer have to worry about forgetting whether the advancement or retreat is a vertical five or a horizontal five.
, no need to go back and recalculate...
It is no exaggeration to say that Li Chengzhi’s seemingly inconspicuous change is definitely of epoch-making significance.
Not to mention Zhao Sheng and Gongsun Chong, even Liu Fang and Cui Guang looked solemn.
Liu Fang asked: "How many days do you need?"
How can the day be used? Let’s not talk about the year, why should it be “season”?
Li Chengzhi lowered his head: "It will take at least a few months...but the government office is too noisy and disruptive, so whether I can allow the official to go home and study quietly, I think it will be studied in March or April..."
Not to mention March and April, just let him spend two months, and then the ice sales will be over...
Liu Fang pondered for a moment: It takes ten years to complete a calendar. Comparatively speaking, three or four months is already very short...
Just as he was about to agree, he suddenly heard a loud "bang" sound.
Cui Guang slapped the table with a heavy palm, and with an angry look on his face, he pointed at Li Chengzhi and scolded: "You don't have eyesight? You counted a hundred dollars and a hundred chickens that day, and this is what you drew in your palm."
The thing... clearly has a suspicion, but he comes to frame me, and he's still 'March and April'?"
Gongsun Chong and Zhao Sheng were somewhat disapproving: For such a great achievement, what if they gave him half a year's leave? Just treat it as a reward.
Liu Fang also had the same idea, thinking that since Li Chengzhi already had a case against him and had worked hard to research it, it was appropriate to let him go for a few months.
Just as he was about to persuade him, he suddenly saw Cui Guang winking at him. The two were cousins. They had been together since childhood, and later became ministers in the same palace. They had a tacit understanding that could no longer be understood. Liu Fang's heart moved, and he immediately understood.
What does Cui Guang want to do?
The old man curled up his lips and said with a smile: "You must have also seen that Taichang officials, Imperial College, Imperial College, Four Primary Schools and other doctoral students all gathered in Taili, and the number of people was more than a hundred?
If you really have a case, you should bring it out as soon as possible. It will not only relieve the country's worries, but also save the officials from a lot of hard work. Your Majesty will definitely receive a reward.
But the imperial court has its own laws. If you have to rest for a few months, don’t have any wild ideas. However, I can allow you to fool around for ten days, but you should order it early and retreat later..."
Cui Guang snorted again: "If you are me, ten days is too much. But we are not unreasonable people. If you want to be free, show some real skills... Just like the solution to hundreds of chickens for a hundred dollars
, if you can submit it, it doesn’t matter if I and Bowen allow you to fool around for a month?"
Li Chengzhi felt bitter for a while, and his face almost turned green.
How could he not see that these two old men were singing a double act?
One month is only ten days, what can you do?
The ice was sold for just a fraction...
It has nothing to do with any court regulations. With Liu Fang and Cui Guang's status, he doesn't have to go to the office for a day, and he can even eat a year's salary without any problem.
The two old men had obviously guessed that they must know more than that. Although they were eager for talents, they were afraid of being naughty, so one with a red face and one with a white face came to try to impress them.
If you say rejection...that's impossible.
Li Chengzhi wished that all the officials in the Wei Dynasty would learn mathematics. This is not to say that liberal arts are not important, but that the two subjects are now seriously imbalanced, causing production relations and productivity to almost stagnate.
Just look at how many scholars are willing to study medicine and how many are willing to be officials...
These two people are dedicated to the public good and have no ill intentions, so Li Chengzhi doesn't complain. He just feels a little powerless, as if he can't beat these two old men.
Li Chengzhi felt deeply powerless and felt that there was no way he could do it without using bigger tricks. He thought for a while and then gritted his teeth: "What if the lower sense organs can push the Xin rate (pi) to 'hu'?"
The so-called sudden refers to a circle with a diameter of ten thousand zhang (one hundred million) as one zhang. The units after zhang can be regarded as the number of digits after the decimal point, which are: feet, inches, minutes, centimeters, milliseconds, and suddenly.
."Hu" is the seventh place...
Gongsun Chong seriously doubted whether Li Chengzhi was telling lies, and asked with squinting eyes: "Really?"
Thousands of predecessors have calculated the rate of Xin, but very few have made accurate calculations.
During the Shang Dynasty, Liu Xin in the Western Han Dynasty calculated "3.15", and it was named after him. In the Eastern Han Dynasty, Zhang Heng calculated "3.16", but they were not very accurate.
It was not until Liu Hui of the Cao Wei Dynasty calculated "3.14159" that it was recognized after more than a hundred years of calculation and verification, and it was considered that the big problem for astronomers, mathematicians, and even ritual officials and craftsmen of the Northern and Southern Dynasties was solved.
Cui Guang and Liu Fang, however, had a straight face, and they all asked solemnly: "Seriously?"
Although Li Chengzhi has a wilder temper, he has never broken his promise since he became famous...
I don’t blame these two people for being excited, it’s mainly because pi plays such a big role:
According to the understanding of the ancients: the sun, moon, five elements in the sky, and even the Milky Way, the universe are all revolving around the earth. Count the years, the seasons, the months, the sky, the hours, the four seasons, and the four solstices.
, calculating the twenty-four qi, or even calculating every hour, every moment, etc., none of them can be separated from pi. The more accurate the pi, the more accurate the calendar and time will naturally be deduced.
In addition, the measures, measures, and quantities used in the national unified system all involve circles. Not to mention the hundreds of workers and people: making wheels, making water tanks, making furnaces, building houses, digging rivers, mining...
...The circle touches every aspect of life. If nothing else, if the wheels are rounder, at least the carriage can run faster.
Li Chengzhi secretly muttered: How can this be false?
This time it was Li Chengzhi who smiled: "This rate was not studied by Xiaguan, but by someone else. However, I still have doubts in my heart, so I need to check it first..."
There is some doubt about this, and it is clear that they want to negotiate terms. How can these two old foxes not see what Li Chengzhi is planning?
"Stop blabbering, submit it now and I will call someone to check it!"
Liu Fang waved her hand and laughed loudly, "If what you said is true, what's the problem if I obey you? I'll allow you to be free for one month... um, no, three months, but you still have to click and retreat every day..."<
/p>
This is because he is afraid that Li Chengzhi will get hot and run away without a trace.
Li Chengzhi was overjoyed and bowed down: "Thank you, Sir!"
Cui Guang's facial features were twisted together as if he had a toothache.
God knows how many good things Li Chengzhi still has in his naughty mind. When his cousin opens his mouth, it means March. Doesn’t it mean that we have to wait until March before we can let him reveal anything more?
But Liu Fang had already agreed, and Cui Guang would not cause trouble. He took a deep breath and looked at Li Chengzhi suspiciously: "You said it was researched by others, but who is it?"
Li Chengzhi was afraid that people would misunderstand that this was what the gods taught him, so how could he dare to look down on others? He said honestly: "It's the ancestor of the Southern Dynasty Chongzhi!"
Liu Fang thought for a moment: "The ancestor Wenyuan who built the Sinan Che (a compass car)?"
"Yes, that's the one!" Li Chengzhi replied, "He also created the "Da Ming Calendar", but it was a pity that it was only implemented in the Southern Dynasties for one year before it was abandoned..."
Hearing Xiange and knowing the elegant meaning, they are all men of spirit. How could Liu Fang and Cui Guang not know that Li Chengzhi was giving them advice?
"Is it accurate?" Liu Fanggu asked doubtfully.
No wonder he was suspicious: there were as many as twenty newly developed calendars in the Northern and Southern Dynasties, but very few of them were accurate. The "Da Ming Calendar" is really as good as Li Chengzhi said, so why did the Southern Dynasties abandon it?
"It should be accurate!" Although Li Chengzhi's words were vague, he nodded heavily, "I heard that just by Na Xinshui, my grandfather has cut the circle (the ancient method of calculating pi) tens of thousands of times..." Cut a circle ten thousand times?
Liu Fang nodded subconsciously. If according to what Li Chengzhi said, if the calculation rate is accurate, the deduced calendar should not be too wrong. Later, I will ask the Calendar Ministry to look it up and do some calculations before looking at it...<
/p>
Cui Guang asked curiously: "Even if you are allowed to fool around and have to retreat every day, you will definitely not be able to leave the capital. Then what use do you need so many vacations?"
Li Chengzhi pondered for a moment: "Xiaguan wants to buy a house in the capital, so he plans to make a little money in his spare time..."
Buying a house in Beijing...with a small amount of money?
The four people present all had their eyes widened.
Sure enough, there is no real person under such great reputation: This Li Chengzhi is already so crazy that there is no limit to it...