The Main Contents of Luo Qinghui's Letter to Luo Tongjia

Luo Shu is a rich and accurate lunar calendar. Based on the scientific calculation method, combined with the actual situation of southern provinces in China and the original skill and experience of Luo Qinghui, the founder of Luo Jia Tong Shu, the royal classic materials such as Xie Jixian's Calligraphy Rules, Xie Ji's Argument, Chuangshu, Seven Policies and Four Redundant Tables, and Adding Broken Tables were compiled. Calculate time, solar terms, solar eclipse and lunar eclipse with "elevation table" (i.e. elevation time difference table, average time difference table, sun-geocentric table and clear sky difference table). Calculated with a unique 39-pole abacus, it is quite distinctive. The number of calculus marks on the abacus is: 1000 Jing, 1000 trillion, 1000 billion, 1000 billion, Qiangong 10 degree, 1000 ten,/kloc-. These marks alone are enough to show that the "General Book" is profound and meticulous in operation. When calculating, the system of "one calculation and first trial" is strictly implemented, that is, one person calculates and one person reviews (the person with the best skills reviews) to ensure accuracy. The contents of Luo Shu mainly include month and date, head reasons, lessons from mountains, marriage and so on. There are sayings, descriptions and examples, which are meticulous, convenient and practical. "Shu Tong" follows China's Yao calendar solar terms, and first calculates the solar term temperature difference of "vernal equinox, autumnal equinox, summer solstice and winter solstice", and then calculates the seasonal temperature difference and time of other solar terms in the 24 solar terms. Check with scientific methods, reveal the development phenomenon of natural laws, and determine the time and solar terms. For example, 10 day after the winter solstice of the lunar calendar is the new Gregorian calendar year, that is, 1 month 1 day, which is a fixed format. Before and after the summer solstice, every day is divided into the Year of the Loong, that is, the day before and the day after it is divided into the Year of the Loong, which is a fixed Laban Xiao. Every cloud can be divided into prosperity, phase, interest and imprisonment. There are several cowherd patterns in the Hundred Years Map, which respectively show the general situation of drought, flood and cold and warm this year, so as to guide people's production, life and sea space activities. According to the tips in the book, people translated many agricultural proverbs, such as: "It's sunny, it's sunny, keep the lawn;" During the Qingming Festival, it rained in succession, and hemp fiber hung high. At the vernal equinox, millet is flying all over the sky; It rains in summer and releases brain urine in autumn; In summer, it is better to go up the mountain and change the kudzu; It's cold and dew, cross the river to find a bridge. " Head by "containing mountains, 24 mountains for good or ill luck, for burial. Choosing a course to get married is subject to longyun; "Mountain Category" is a category created by twenty-four mountains, including mountain transport, mountain transport, piercing sound, star obsidian, evil spirits, Yin Fu, self-emptiness, rushing to death, extinction and dry fire; Marriage "includes Italian, Italian and menstruation parents. The chronological order of "Selected Wonderful Articles" and "Nine Days Xuan Nv Fixed Date is a foregone conclusion" is A, B, C, D, E, J, G, Xin, Ren and Gui. "Moon Chen" includes the moon, which is round and lacking. In addition, "Twenty-eight Nights" is a good or bad picture, including jiaozi, leopards, pigs, birds, dragons, monkeys, deer, cows, wolves, apes, snakes, rabbits, bats, dogs, insects, foxes, ugliness, pheasants, sheep and bats. It is understood that India records dates in this way. In China, 60 flowers are used to record dates. For example, 1987 Lunar New Year165438+1February 2 1 is called Jiazi Day, which is the first day of 60 flowers. The "vertical construction theory" in the General Book points out that whenever a new house is built, there are always things like putting beams, building houses, installing doors and releasing water. In short, taking the wall as the center is the concrete application of architecture.

Luo's Tong Jia Shu is relatively complete, such as Shu Tong published by Luo Chunhong and Jifutang. The contents are as follows: a century-old map, eight diagrams directions, six palm formulas, a compass with 28 nights of good and bad luck, notes on the terms of choosing a day, 28 nights of good and bad luck, general geography, geographical water law instructions, town spells, Anmenxiu and vertical. Choosing an auspicious date to get married, the love and marriage cooperation between men and women in the zodiac, the first auspicious lesson of Liu Ren Tianxing authentic furnace biography is explained in detail, and the auspicious spirit of the Moon is fierce. Every discussion has a general theme and detailed examples, which is convenient and practical.