Wang Erniu led several croppers to ask to see Sun Yi early in the morning. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Several people saluted Sun Yishen, and Wang Erniu said: "Lord Lidel, last night the generals discussed the matter of dividing the fields and land. Now I want to implore the lord to set the size of an acre of land. ”

Sun Yi wondered: "Isn't the size of an acre of land fixed, why do you still want me to set it?" ”

Jia Daoshi said: "Not really, not really. ”

It turns out that in the Ming Dynasty, the size of an acre of land was not fixed.

The official standard of the Ming Dynasty was one step wide, two hundred and forty steps long for one acre of land, and each step was five feet.

The official standard ruler includes a construction ruler, a ruler of the ground, and a tailoring ruler, which is called a "ministry ruler". Unfortunately, there are conventions in various industries around the world. Such as "Su ruler", "Zhejiang ruler", "Huai ruler", these places are inconsistent with the size of the ruler.

The standard stipulates that one step is five feet. It is definitely not accurate to measure with footsteps, so there are special tools for measuring steps, if the shape of the bow is called the step bow, and the shape of the stick is called the step rod.

In the fifth year of Qianlong of the Qing Dynasty (1740), a national survey was conducted, and the household department asked the Zhili and the provinces to "report the old bow ruler to the department", and found that "only Zhili, Fengtian, and Yanchang still obey the bow ruler issued by the ministry, and there is no unevenness", and the rest of the "Shandong, Henan, Shanxi, Jiangsu, Anhui, Fujian, Zhejiang, Hubei, Shaanxi and other provinces are either 3 feet 23 inches, or 4 feet 5 inches, or 6 feet 5 inches, or 7 feet 5 inches as a bow; ......, none of them complied with the bow ruler issued by the ministry".

The standard stipulates that one acre is 240 steps. In fact, in the Ming Dynasty, in Shaanxi, Henan, Zhili, Shandong and other provinces, the large mu system was widely existed. A large mu is 360 steps, 540 steps, 600 steps, 690 steps, and even 864 steps.

In Yan'an Prefecture, where the people of Tiemuying are concentrated, many counties do not use acres of land at all, but record the workload of cattle plowing for an afternoon as a piece of land. The area of each plot is about two and a half to four acres.

Sun Yi promised the people 100 acres of land and 2 acres of homesteads, and the people naturally wanted to know how big the master's one acre of land was!

After the land is divided, grain must be paid, and grain must be paid with a measuring device--bucket, and the people still want to know how big the bucket is.

In the Ming and Qing dynasties until the Republic of China, the folk measuring instruments were more chaotic, and the so-called "township has a township fight, the city has a city fight, and the official has an official fight".

Take Shaanxi Province as an example: Xunyang County City Dou is "twice as big" as Cangdou. In Yangxian County, "Township Dou One Stone is Jing Dou Two Stones". Tongguan has been customizing the collection of field grain with "three liters less than the city bucket".

The people in the camp come from all over Shaanxi, and of course they hope that the size of the bucket will be unified by the way.

Sun Yi said two times in a row, "I didn't expect it!" ”

Unifying the unit of measurement is such an important thing, but I didn't expect the Ming Dynasty to be a typical non-compliance with the law, and it did so poorly!

Such a difficult thing as a unified unit of measurement, I didn't expect it to come from the spontaneous request of the people!

In Sun Yi's view, ruler, mu, and bucket are all the same thing.

The ruler is the length, the mu is the area, and the bucket is the volume, which are the performance of the standard unit of space in one-dimensional, two-dimensional, and three-dimensional.

A small programmer in the later generations of Sun Yi could actually formulate time standards and then space standards in the Ming Dynasty, which is simply earth-shattering!

The basic unit of length in later generations was the "meter", which was first used by France in 1799 and became an international unit in 1875.

Of course, Sun Yi would not be stupid enough to launch "rice" in the fifth year of Chongzhen in 1632, but he could completely rely on the principle of "rice".

The earliest definition of "meter" is one ten-thousandth of the Earth's meridian from the equator through Paris to the North Pole.

There are countless meridians on the earth, and because the earth is not a perfect sphere, each meridian is theoretically not the same length.

Sun Yi then decided to adopt the length of the equator: 40,075.02 kilometers.

The equator is divided into 12 parts, each corresponding to a 12-hour time zone. The length of the equator in each time zone is defined as 10 million feet.

In this way, the length of Sun Yi's one foot is 33.39585 centimeters.

The official standard of the Ming Dynasty was 34 cm for tailoring, 32 cm for construction, and 32.7 cm for measuring ground. Sun Yi's ruler is between these standards, and it will not cause chaos in the lives of the people.

Once the value is determined, a sample is made.

Sun Yi took out his mobile phone, called up the manual of the mobile phone, and found the length and width data of his mobile phone, which were accurate to the millimeter.

With the help of these precise dimensions, Sun Yi finally determined a length of 33.39585 centimeters.

33.4 centimeters to be exact.

Compared to this length, Sun Yi made two willow sticks. Prepare one for issuance and one for standard.

Sun Yi first had to popularize the concept of the equator to the people of the Ming Dynasty in order to explain the significance of the ruler he formulated.

Thinking about it, Sun Yi first asked, "Do you know?" The earth is actually round. ”

Wang Erniu replied: "Of course the earth is round!" ”

Sun Yi was stunned! The prepared words choked back, the peasants of the Ming Dynasty knew that the earth was round?

Sun Yi asked: "Didn't you say that the sky is round?" ”

Jia Daoshi took over the topic: "That is the ignorance of the ancients. ”

Wang Erniu said: "If it is really as the ancients said, the four horns of the earth, aren't they leaking out of the sky?" ”

Jia Daoshi explained: "The sky is like a dome, half on the ground, half underground, and it is 90,000 miles above the ground. The earth is round and flat, and the center of the earth is located somewhere in Henan, the Central Plains of China. ”

Sun Yi let out a sigh of relief, it turned out that the people of the Ming Dynasty thought that the earth was round, just a flat circle.

However, as long as it is round.

Sun Yi slowed down his tone, "If the length of this stick is recorded as one foot, the circumference of the earth is twelve million feet. The sun revolves around the earth for 12 hours in a day, and one hour is 10 million feet, a quarter of an hour is 1 million feet, a minute is 100,000 feet, a centimeter clock is 10,000 feet, and a millimeter clock is 1,000 feet. ”

Daoist Jia was taken aback.

Lord Lidel's ruler does not look much different from an ordinary ruler, but if you take the scale of Lord as the standard, the edge of the earth is actually divided into 120 million feet, and it is closely interlocked with the sun!

Since ancient times, the Son of Heaven has promulgated the scale of the world, but who dares to say that his scale is the number of heaven and earth?

Sun Yi continued: "The amount of an acre of land in the Ming Dynasty is not fixed, it really shouldn't be. We walk a thousand feet with a millimeter of sun. That is to say, one zhang long and one zhang wide is one acre; A hundred acres is recorded as a tilt. ”

Originally, one acre in the Ming Dynasty was sixty square abbots, and one acre in Sun Yi was one hundred square abbots.

The reason for the readjustment of the size of mu is that Sun Yi believes that a uniform decimal system is more important. Anyway, there is, and the people of northern Shaanxi are used to large acres.

Daoist Jia was shocked when he heard this, and the acres of Lord Lidel actually came from the number of days.

Sun Yi's next words made Daoist Jia completely stunned: "As for the measuring instrument of grain, it will be based on the square ruler in the future." One foot long, one foot wide, and one foot high is a square foot; A square foot filled with pure ice water is a thousand taels; ”

Jia Daoist thought in his heart, and determined the ruler by the number of the earth, which is the "degree", and then determined the square ruler with the ruler, which is the "quantity". The measurement of the Lord is derived from the earth, the heaven and the earth are one, and the measurement of the Lord is therefore combined with the number of the heavens, although it is magical, it can also be figured out.

But these catties and taels are for "balance". The "degree" and "quantity" of the master come from heaven and earth, and filling it with water is "balance", how can it be coincidental? This measure, measure, and balance can be so perfectly interpreted!

According to Sun Yi's scale, the volume of one cubic foot is 37,059 milliliters, and the volume of water is 37,059 grams.

In the Ming Dynasty, one catty was 593.1 grams, one catty was sixteen taels, and one tael was 37.069 grams. 37,059 grams is exactly equivalent to 1,000 taels.

This is pure coincidence.

Strictly speaking, Daming's catties and two coins are quality units. Sun Yi didn't even think about touching them.

Because the weight of the Ming Dynasty is directly linked to the weight of silver, it is actually the basic unit of currency, and it has long been integrated into all corners of people's lives.

But, it's such a coincidence!

The existing mass units of the Ming Dynasty seemed to have been prepared for a long time, and they adjusted their size early to match Sun Yi's space units.

Thus, the units of time, space, and mass are unified.

For this coincidence, Sun Yi had to say that it was a miracle.

So much so that Sun Yi doubted that in the dark, there was really a god who sent him back to the Ming Dynasty, just for a certain mission that had been arranged for a long time, just waiting for himself to find out!