Lu Hongniang walked in calmly and saw the handsome young men in the hall, each with his own charm. She thought to herself that Duke Yun was very lucky.
"Aunt?" Lu Qing stood up quickly, with a look of surprise on his face.
I was just thinking about her in my mind, and now the real person appears in front of me. Am I dreaming?
Lu Hongniang looked Lu Qing up and down, then glanced at the others calmly, and curved her eyes in satisfaction.
Our own little ones are still the best looking.
Lu Qing quickly asked Lu Hongniang to sit in his seat and enthusiastically served her tea and water: "Aunt, why did you come to Hezhong Mansion?"
My aunt is considered an outlier in the family.
Although she inherited the beauty of the Lu family, she had never liked music, chess, calligraphy, or painting since she was a child, and her favorite thing was arithmetic.
Her grandfather hired a teacher for her, hoping that after she finished her studies, she could manage the family business and take care of the accounts.
Unexpectedly, Lu Hongniang disliked that the Lu family's assets were too small and managing the accounts was not challenging, so she decided to go out and study.
This trip lasted for more than ten years.
If she hadn't written home every year, her family might have thought she had died in a foreign land.
Lu Hongniang picked up the tea and took a sip: "Don't worry about why I came here. You little guy, are you in trouble?"
Although Lu Hongniang returned home only a few times, she often heard her brother mention this youngest son in his letters. He admired Duke Yun the most.
When Lu Hongniang passed by Hezhong County, she wondered whether this little nephew would come for refuge. Later, when she inquired, she found out that he had indeed come!
Lu Qing scratched his head in embarrassment: "Aunt is really amazing, I am indeed in trouble. The Yun State Public Security Bureau gave us a task, which is to supervise the clerks to measure the land. I didn't expect that this group of clerks bullied us because we didn't know how to measure!"
Lu Qing's eyes were almost red: "This is a test given to us by Duke Yun! If we can't even do such a small thing, how can we have the face to stay with Duke Yun?"
Lu Hongniang's smile faded, and she sneered, "How dare you bully our Lu family! Just wait and see, aunt will stand up for you!"
Cui Letian and others had never met Lu Hongniang, but Lu Qing seemed to have a backer, so they decided to trust Lu Hongniang once.
A group of people first followed Lu Hongniang back to the inn to get a few things, and then went to measure the Hong family's fields on the outskirts of Hezhong Prefecture with great fanfare.
Such a high-profile action naturally attracted the attention of the clerks and the Hong family.
They sent some men to follow closely behind.
When they arrived at the edge of the field, Lu Hongniang took a quick look and found that the field was not in regular shape.
“This is definitely more than thirty-seven acres.”
The servant of the Hong family said in dissatisfaction: "Don't talk nonsense. This was measured by the most experienced Wu Xuli. What do you know, girl?"
Lu Hongniang took out a rope from her bag and asked Lu Qing to hold one end. She stood there and said, "My eyes are the ruler!"
Lu Hongniang was in the middle of the field. Facing everyone's doubts, she said confidently, "You are just cheating by passing off lies as truth, and you thought that others couldn't figure it out. But you met me today, and you have met a tough guy!"
Lu Hongniang pointed at the rope in her hand and said, "This is called a rope ruler. It is made of sixteen strands of ramie twisted together and soaked in oil. A copper bell is tied to each foot as a mark to prevent stretching and deformation. In addition to the traditional foot size, a new minute scale is also added."
The copper bells are jingling.
Seeing Lu Hongniang's confident look, the clerks and members of the Hong family who were watching couldn't help but frown.
Lu Hongniang doesn't care what these people think. If they dare to bully her nephew, they must be prepared to be slapped in the face.
While Lu Hongniang was directing Lu Qing to various locations, she asked Hua Xu to record the data.
"When faced with this kind of curved boundary, we can use the arc field method, which is to decompose the arc boundary into multiple chord-vector combinations and use the circle segmentation method to approximate the calculation."
Lu Hongniang had no intention of keeping it to herself and shared it generously: "The calculation method is also very simple. Multiply the string length by the arrow height, and then divide it by two. Add this number to the cube of the arrow height, and divide the sum by three times the string length."
…
Lu Qing was confused. How could this be simple? He couldn't understand it at all!
Lu Qing was a little doubtful, was he too stupid?
He secretly looked at Cui Letian and others, and found that the head of the scholars, the treasure of the Cui family, had a dull look in his eyes, and was obviously confused.
Lu Qing looked at the clerks beside him and saw that their faces looked very ugly.
After the data measurement was completed, Lu Hongniang blurted out: "Forty-six point seven acres."
Wu Xuli's face was as black as charcoal.
They actually measured it privately, and it was about 45 acres. But it took the five old guys four days to calculate it.
How long did it take this girl? Was it an hour?
Wu Xuli took a deep breath and smiled: "Madam Lu is really amazing. Now there is something that has troubled us for many years. There are two villages in Hezhong Prefecture, and they have different opinions on the boundary of the hillside. I wonder if Madam Lu has any suggestions?"
Lu Qing was anxious: "What does this have to do with my aunt?"
Wu Xuli: "It has nothing to do with Madam Lu, but it is also part of our duty to measure the land. Perhaps, Mr. Lu, you have any ideas?"
Lu Qing was speechless. He couldn't even measure the land, let alone draw boundaries.
Lu Hongniang curled her lips and signaled Lu Qing to put away the rope and ruler: "In this case, I will take the responsibility and teach you a lesson!"
The disputed territory was a hillside not far from them.
The sun had not yet completely set, so Lu Hongniang decided to finish today's work.
A group of people walked towards the hillside in a mighty procession.
The hillside is not high, and layer upon layer of terraces have been developed.
It was early winter and the terraces were bare.
Everyone turned their eyes to Lu Hongniang.
Lu Hongniang took out another object and said, "This is a ruler. It can measure slope and height. It is most suitable for measuring mountain terraces."
This is actually a copper square with a movable protractor and plumb bob.
This standard is something that Wu Xuli and others have never seen before.
Lu Hongniang took Lu Qing to measure the first layer of terraces and used a ruler to measure the height difference.
"The measurement of terraces is not complicated. Each layer is considered as an independent platform, and then their height difference is measured, and finally the area is integrated. The area of a single layer is..."
"Aunt, please let me go," Lu Qing really didn't want to be hit again.
These formulas sound like incomprehensible scriptures.
Lu Hongniang was helpless. After a simple measurement, she quickly reported a number: "I remember that Yunzhou Weekly mentioned that [the outer edge of each layer is indented one foot and five inches as the boundary]. Since Hezhong County has been under the control of Duke Yun, it is natural to follow the rules of Duke Yun. If there is no explicit requirement, everything should be modeled after Yunzhou."
The Hong family was dissatisfied: "Yunzhou is Yunzhou, and Hezhong County is Hezhong County. How can they be confused?"
Lu Hongniang sneered: "You couldn't do it before, but you can do it now! If you don't change your attitude, you will be eliminated sooner or later!"
"you……"
"Well said!"
Everyone looked in the direction of the sound and found that Duke Yun and Li Mingde were standing outside. They didn't know how long they had been there and how much they had seen. (End of this chapter)
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