Know the time of the sky, know the advantages of the land, understand the signs of the heaven, and observe the movement of the five elements.
The behavior of weather forecasting is not a modern phenomenon. In ancient times, the Qin Tian Jian was specialized in doing this work. There were also divisions of responsibilities. For example, the Jian Zheng was in charge of recording and moving documents, while the one in charge of the "Four Seasons" was the Wuguan Zheng.
, Spring, Summer, Mid-Autumn and Winter, a total of five people, they infer the calendar and control the four seasons. In ancient times, the Yellow Emperor had two people, Da Nao and Rong Cheng, to do this. During the reign of Emperor Yao, it was Peng Zu who was in charge.
When Emperor Shun arrived, Peng Zu stopped doing this job and became the director of the personnel department.
In addition, in the Qin Tian Prison, there are astronomy experts, stargazers, fortune tellers, northwest wind drinkers, membrane mages who control time, bell ringers, and part-time rooster crows...
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Although Yu Zai is not an astronomy major, astronomical phenomena are something that must be learned. For geological exploration majors, if you only know the geographical advantages but not the weather, it will be very dangerous in many places.
The weather in Qinghai's no-man's land is not as mild as in metropolitan and coastal areas or the North China Plain.
When we came to the vicinity of the sundial, the Chifang family had two sundials. The sundial of the public field was in the public field. They didn't talk about it when they came. Chongbo and the others didn't see it either. After all, they didn't move into the public field. They saw it from a distance.
After the large meteorological observatory is under construction, go directly to the farmer's market.
The Akakata family's sundial is placed on an earthen platform near the ancestral site, and many wind poles have been erected nearby.
Chicken-shaped weather vanes, these bronze signs sway slowly and lazily in the wind.
There are some large tanks below, which store water, and wooden signs are hung on them to indicate rainfall in various periods.
What Yu Zai wants to introduce to them is a strange "instrument" on the side of the wind direction pole and on the edge of the water tank group.
This instrument is placed on a wide platform with the words "rain measuring platform" written on it.
"This copper vessel is called a rain gauge, and the circle above it is called the water-receiving mouth. The body of the copper cylinder is made from the sacred copper mine near Diyoushi..."
Yijun has been building it for a period of time. The refining of divine copper takes time and requires constant grinding to cast it well. Among them, some of the divine copper has the property of "not wearing out", so the opposite must be done.
Instead, use the wind and fire in the kiln to crack it from the inside.
Just because it won't wear out doesn't mean you won't melt or burst.
The Qi in the original copper mine is dispersed. After it is forged into a weapon, its power will flow according to the state of casting. Therefore, the original copper, even the divine copper, is more fragile than the already formed divine copper weapon when struck.
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The original intention of casting is to expel impurities in minerals and create weapons with different characteristics based on the experience of the caster.
For example, the reason why iron bars were hammered repeatedly in ancient times was because repeated hammering could eliminate impurities, even out its elemental composition and dense structure, and sometimes refine its grains, thereby greatly improving the quality of the material and improving casting.
The toughness of the product allows the oxide layer to fall off, greatly increasing its strength and hardness.
This is what is meant by the saying that steel can be made into steel a hundred times.
The rain gauge is a product of the Southern Song Dynasty. It was called "Tianchi Basin" at that time. Compared with the rain gauges of later generations, the Tianchi Basin is of course much simpler.
"When it rains, from the water inlet funnel above, the rainwater will not splash outside but will flow all the way to the bottom. It will slowly accumulate in the glass tank where the water is stored until the rain stops..."
"According to the amount of water accumulated in it, take it out and weigh it."
The earliest weighing units in ancient China, as well as the era of use, started with Yi Qi Shang and Tan Heyun. However, after the Warring States Period, these two units were directly obliterated by Comrade Qin Shihuang with a wave of his hand, leaving only part of the text.
The record exists....
Weights and measures are so confusing, unify them!
For that era, these two things were the dregs of history...
Now there is no way to find the "one kilogram weight". This thing is something covered in a cover in the international convention. The definition of one kilogram comes from it. This weight is determined through a series of observations.
The formulas that I don’t even understand were polished and formulated after calculation. I asked Yu Zaiyun to calculate them....
Sorry, this is really hasty, I choose death.
Therefore, according to later generations and modern society, one pound is equal to 500 grams, the Qin Dynasty is 235, and the Western Han Dynasty is 256, then...
How many kilograms does thirty grams of water equal?
The answer is zero point zero six.
Ruzai asked someone to bring something, which was something that no one in the world had ever seen before.
A straight pole with two plates hanging from both ends, connected by copper chains, and the entire utensil is also made of copper.
For some reason, when Yu Zai picked up this thing, the visitors here all felt a "sacred feeling" between heaven and earth.
"What is this?"
Uncle Chong asked curiously, but did not notice the shocked looks of several Qi Refiners!
Yu Zai replied: "This is the fairest thing in the world, and it is also the thing that determines the justice of the world."
"In the Huangdi period, there was such a thing."
The Yellow Emperor, who is a little expert in black technology, appears again, yes! It is the arrow stack fruit ability user again! The representative product of the weighing instrument, the scale, is said to have appeared in the Huang Emperor's time, and it was called "weighing" at that time.
At that time, Huangdi asked his subordinates to set up five quantities: "weighing, douhu, chizhang, libu, and shihun", that is, he created weights and measures and the number of acres of land. Then after Huangdi's death, this thing broke, so his mother
has been lost.
And China has written records and a complete set of weighing instruments that actually appeared...
Yes, the improver (the real maker) and the first unifier of primitive weights and measures was Emperor Shun.
"Shang Shu Shun Dian": "The words of the same laws of weights and measures."
The main reason should be that when Comrade Yao Chonghua was doing business in Shouqiu, he was cheated...
To sum up, liars are the first driving force of historical development.
But now, Yuzai is one step ahead and shows this scale, or "weighing", in front of everyone again!
"Beimen Cheng, this is...!"
Wu Zhuang did not say bad words this time, but really turned pale. Looking at Beimen Cheng, Ju Liang was also shocked. The snail in his hand stretched out two tentacles and touched Ju Liang's fingers. It didn't understand why its owner Would be so surprised.
Beimencheng said: "This is a trade-off!"
Yuzai smiled: "It's more perfect than weighing. It is said that this thing existed during the time of the Yellow Emperor, but the effect was not good. Now, I have made a new weighing..."
Beimen Chengdao: "In the time of the Yellow Emperor, Li was the first to make this object, but at that time, due to some problems, it was finally abandoned because the weight of the object could not be measured accurately... Your weighing is different from that of the Yellow Emperor. What's the difference?"
Yes, the most important thing about a weighing instrument is the standard.
This is different from the length. The size can be measured with the palm of the hand. At that time, Ji Liguo measured the water level by using several fingers.
Yuzai touched his pocket...
Please call me Doraemon.
Ten grains of rice, both medium and small, were placed on one end of the scale, and the originally stable scale began to tilt slightly to one side.