Cheng Wenying stopped and thought for a moment: "That's right. This method is just like the ruler you used last night. The logic is extremely simple, but why has no one thought of it until now?"

Su You put his hands behind his back and quietly rubbed his red hands and said, "Then this is my quirk, I like to think about things in detail."

Cheng Wenying nodded: "You never tire of fine food, and you never tire of fine food. Master's profound meaning should be found here."

Su Baniang took over the conversation and said: "Si Yue said that Uncle Yao was cooking yesterday, and he told the cook the same words as Grandpa."

Cheng Wenying had a complicated expression on his face and sighed: "I was still worried that you wouldn't be able to establish yourself in the industry, but now it seems that I was overly worried. If you only understand the fine arts to this level, you can be as good as a good nephew in the world. However,

Say this to the fat man in the kitchen... Hahaha, it's probably because Mingzhu secretly cast his mind."

Su You snickered and said: "It's not a secret, at least he has learned two dishes, hasn't he? He has learned to handle the fine parts and rough parts of the ingredients separately, hasn't he? This cooking skill has been improved to a new level. There is no distinction between education and distinction, this is amazing

That’s what Master said.”

Cheng Wenying stroked his beard and joked: "The Analects of Confucius has been put to good use by you. I wonder if you only know this?"

The three of them came out talking and laughing. Su You took two volumes of drawings and ran to find Lao Yu.

Lao Yu was instructing Yu Da and Yu Er to prepare for work. When he saw Su You coming, he hurried over to greet him: "Here comes the young gentleman. I dug out all the engravings today and prepared to refine the ones that were not up to scale. With the vernier caliper, I

It has to be done to perfection to be considered complete!”

Su You looked like a young adult: "Yu Gong's attitude is commendable, but I have designed another drawing. In addition to measuring the width, it can also measure the inner diameter. In addition, the accuracy can be even finer."

Lao Yu's eyes were full of circles. The news came too suddenly and he needed to digest it carefully: "More detailed? Mr. Xiao, you want to... How do you say that word? Accurate, right means precise. Mr. Xiao, you want to be precise.

How much?"

Su You said: "I couldn't do it at the time, but last night I thought about it and found that I could divide a foot into three parts. I called it a small ruler. In the same way, we can divide a foot into three parts. In the same way, we can divide into small inches and small points. Finally, it falls on the vernier caliper.

The accuracy can be improved three times, to one-third of a centimeter, which I call a small centimeter."

This is almost close to the accuracy of a modern centimeter, improving the accuracy to about 0.1 millimeter.

Old Yu slapped his forehead and his eyes lit up: "How can I not think of this in my pig brain? I need Mr. Little to remind me of everything! Don't worry, you can understand this drawing at a glance. Leave it to me. You will definitely be able to do it when you come back tonight."

I saw some rulers with higher precision!”

Su You thought for a while and then added: "Another point is that the scale and auxiliary scale this time are adjustable. Due to changes in climate and moisture, it may cause the zero degrees of the main and auxiliary scales to no longer coincide when the calipers are closed.

, I call this deviation. The auxiliary ruler is designed to be adjustable, so this error can be corrected at any time."

Lao Yu was so impressed with his admiration that he had already regarded Su You as the reincarnation of Lu Ban. He obeyed his words and patted his chest and promised to do a good job.

After leaving the gate, Cheng Wenying sent Su Baniang to the soft sedan chair and prepared to give one to Su You. However, Su You said that he would rather walk and take in the scenery of Meishan City, so Cheng Wenying had to let him go.

They all set off, and after walking for a while, Ba Niang thanked Su You softly.

Last night, she hurriedly left Su You behind just to see her child earlier. Now the mother and son are reunited. Baniang's mood couldn't be better. Her worries are gone and she feels extremely relaxed.

Walking along the bluestone road outside the city, Su You felt that the style of the ancient Sichuan city in the Song Dynasty was novel and intimate.

The remote towns that I helped in my previous life are somewhat similar to the current Meishan City.

There are gutters on both sides of the bluestone road, and the gutters are covered with stone slabs.

This is amazing. In the poor lower county, there are often ditches on both sides of the road. There is no other meaning, just save a little stone.

Above the gutter is the eaves, and the rainwater from the eaves has fallen on the stone slabs at fixed points for a long time, causing two rows of small holes along the street.

At intervals, large copper coin-shaped water inlet holes are carved into the stone slabs on the gutter.

On both sides of the road are the houses of a new class of citizens formed for the first time in China.

The emergence of the citizen class illustrates the rise of the service industry and handicraft industry, which is fully reflected in the life scene on both sides of the streets in Meishan City.

There are snack shops, dried fruit shops, grain and oil shops, wine shops, cloth shops, silk shops, bamboo shops, brown shops, and grocery shops... There are many things to see along the way. They are not large in scale, but they are rich in goods.

There are also many strange phenomena. For example, you can see many farmers carrying dung buckets, buying the excrement from the toilets of various residents along the street. Generally, a family's contribution in a night can be sold for one or two cents. This is the best farm fertilizer.

.

Then there are those who sell firewood. Residents can clearly distinguish between miscellaneous firewood and bargain based on the degree of resistance to burning. A load of firewood is a small business worth dozens of yuan.

There are even people who sell water directly, and the water is carried into the city by people from outside the city. Depending on the distance, the water is sold to people far away from the well for more than ten cents.

Su You asked Banniang why people with wells in the city didn't fetch water to sell. Banniang laughed so hard in the sedan chair that those who could dig wells were not short of money. They didn't even have time to take good care of their wells, so how could they sell their own water?

If Feng Shui is a source of wealth, then it won’t make you a prodigal?

While curiously inquiring about prices along the way, the citizens saw a child asking questions, knowing that he would not buy. However, they suppressed their impatience and, for the sake of the small sedan next to them, answered with a forced smile.

Just kidding, where is the sedan chair belonging to Mr. Cheng, the richest man in Meishan? If you accidentally offend me, you will be punished.

Fortunately, this young master is very curious, and he is not like those naughty kids from small families. He is polite and does not say anything, nor reaches out to touch around, but only asks questions with a smile.

After inquiring along the way, Su You already knew many interesting discoveries that overturned his previous impressions.

Food, for example, is really not expensive. As for breakfast in central Sichuan, a pancake only costs five cents.

What’s funny is that the five-penny dish comes with fillings. The fillings are usually pickled beans, sauerkraut, and fresh leeks.

The one without stuffing is more expensive, costing seven cents, because it is real food and will keep you full longer.

Add in a bowl of corn porridge for two cents, and you can basically make a breakfast.

Of course, you have to eat well. There are also many snacks to choose from, such as soup, pulp, pancakes, etc. If you want to be full, you will have to pay fifteen cents.

Ordinary wine, such as bad wine, only costs one hundred coins per catty, and better mead only costs two hundred coins.

Of course, there are also expensive ones. For example, Su You saw the price of Shaochun, pear blossom white, which was always priced at one thousand pence.

Tea is a special case in Sichuan. The government does not specialize in tea, but it cannot be sold to other Song Dynasty areas outside Sichuan, so it is very cheap, only 500 coins per catty.

Of course, there are also small tea cakes with consistent prices, as well as high-end tea cakes that are said to be from Jianzhou, and there are four tea cakes in one cake!

And it is not as imagined by later generations. If you are educated, your income will be high. The porters on the edge of the city, holding poles and waiting for others to recruit, are very similar to the mountain city stick soldiers of later generations. Su You asked for two hundred coins a day, and then paid the price.

Have a full meal in the morning and evening.

Similarly, the fee for a copyist on the edge of the city is two hundred yuan per day, but this is the base number. If the number exceeds a certain number of words, the price will be discounted based on the number of words.

Salt is still a monopoly, but private salt is also semi-public in central Sichuan. One pound only costs 70 cents, and it is in lump form. When converted into copper coins, the price is about the same as in Bianjing, which is already very cheap.

Su You read a lot of history books in later generations and knew that many poor people could not afford the seventy cents per pound of salt. They hung a small piece with a rope and put it in the vegetable soup, even if the salt was omitted.

rice, each stone is no more than 800 fen, and a bucket is worth 80 fen.

Compared with the personal income of residents, meat is not expensive. The most expensive beef is 100 yuan per catty, pork is 40 to 50 yuan per catty, and mutton is in between, and it is available on the market.

But the fun part is that the fatter it is, the more expensive it is, and no one buys lean meat, which is also the opposite of later generations.

But clothes are expensive. An old linen garment in a ready-made clothing store costs several hundred yuan, while a silk garment of slightly better quality costs more.

Silk shoes and leather boots are all high-end goods.

Among the clothes, kapok clothing and Ge Yi are even more expensive.
Chapter completed!