Liu Liu Jr. Chapter 240
I'll show you a small method, and I hope all teachers can criticize and correct me, or chat together. I like to observe and get to the bottom of it. Flowers bloom and fall, and the years pass. I observe and think about the materialization of a "thing" with the thinking and perspective of a small craftsman. From the beginning, change and death, this paper analyzes whether a "thing" can achieve "eternal youth" Suddenly found that these "longevity of things" must follow a law. In order to find out this rule, I used a method, which I named "Law of Limit".
Limit rule
What is the "Law of Limit"? Simply put, it is a way to look at a "thing", including this "thing" and related parts, and consider their reliability, durability and durability as a whole.
When a "new thing" appears, people always hope that "she" can remain young forever and last forever. How to judge? Please use the limit law of small reservation to sum up, that is, analyze this "new thing" from both ends, on the one hand, analyze the "minimalist principle" from the simplest, on the other hand, consider the "extremely complicated principle" from the most complicated, and measure whether this "new thing" can last for a long time by extending to both ends of the limit. After consideration, we can draw the conclusion that this "thing" can "stay young forever".
It is concluded that the more a "thing" tends to the "minimalist principle" in the "limit law", the longer its persistence, which also corresponds to the "inaction" of Taoism.
For example, the first person in the history of China to unify multi-ethnic groups and establish a centralized state was Qin Shihuang. Old Qin is a great god. He invented the Epang Palace, the Great Wall of Wan Li, the Mausoleum of the First Qin Emperor, the Way of Qin and the Qin Family.
Let's use the "limit law" to briefly analyze the "old Qin" project. In thirty-five years (2 12 BC), "Old Qin" began to build a big house "Epang Palace" for himself. It is located in the north of Heping Village, weiyang district, Xi City, covering an area of 15 square kilometers. This "Epang Palace" is a great building with many materials and large scale, which can be called the landmark building after the reunification of China. However, it is found that wood is the most used in Epang Palace, and the life of wood and stone is self-evident. Such a complex, complicated and costly Epang Palace project, coupled with the subsequent need to spend a lot of manpower and material resources to support, naturally Epang Palace's life will not be too long and will soon disappear in the long river of history.
Old Qin is called Qin Shihuang. He intends to start with him. All his descendants are emperors, so he is called Qin Shihuang, his son is called Qin Ershi, and his grandson is called Qin Sanshi. According to the Law of Limit, man is the most uncertain, and human nature is complex and changeable. They hope they can't have only one idea a day. Otherwise, there is a saying that "turning your face is as fast as turning a page", so the idea of "old Qin" belongs to the "extremely complicated principle" in the "limit law". It will inevitably lead to the fact that the "Qin family" will not last long. After living for three years, the "Qin family" will change hands.
The Great Wall of Wan Li is considered as one of the greatest architectural projects in the world. Perhaps "Old Qin" himself didn't think that the Great Wall of Wan Li still stood there with its head held high after more than two thousand years of ups and downs. According to the "limit law" analysis, the durability of Qin brick firing is comparable to that of large stone tablets, and the most important thing is that there is very little manpower and material resources to support the survival and subsequent restoration of the Great Wall, which fully conforms to the "minimalism principle". So it can stand for thousands of years.
Nowadays, the "tall buildings" in metropolis are huge and daunting, and they are built with more advanced and stronger "reinforced concrete" and use a very complicated "five impossible" control system. However, if we use the "limit law" to analyze, the life of high-rise buildings is almost always short, because if we consider it comprehensively, it takes too much manpower and material resources to make high-rise buildings run normally. For example, the present house is very valuable. As we all know, to support the continuation of high-rise buildings, it is indispensable to use a lot of manpower and material resources, such as hydropower. Both are indispensable. If there is no power support, 100 floor will be given to you for free, and you don't want it. Therefore, the more modern buildings are, the more complicated they tend to be. From now on, many high-rise buildings may all disappear one day, and it is estimated that the Great Wall will still stand there.
No matter what we do and produce now, we hope to design a durable car once and for all. Build a temple and hope for eternity? Build a tall building and hope to use it forever? Designing a dam takes thousands of years. Even willing to use a chair and bench for a long time? So how can we achieve what people want? I think, no matter as small as mobile phones, desks, bicycles, cars, as large as houses, tall buildings, the Great Wall or dams, and even human society, we can use the "limit law" to measure its durability. As long as the "minimum principle" in the "limit law" is followed, its vitality will last for a long time. The comprehensive evaluation of "Dujiangyan Water Conservancy Project" and "Wan Li Great Wall" fully conforms to the "minimum principle". They are thousands of years old. How many new dams have collapsed behind them? How many tall buildings and city walls have been destroyed?
In 2002, I am going to change a Jetta that I have been thinking about for a long time. At that time, four S stores had just sprung up, and the sales staff pushed the new "Jetta King". Although it is the same 1.6 liter engine as the ordinary Jetta, the Jetta King is a very new model. The biggest highlight is that the engine is equipped with 20 valves, 5 valves in one cylinder, 3 in and 2 out, which is clean and neat. Think about it. Generally, a four-cylinder Jetta engine has only eight valves, and a cylinder has only two valves. "Jetta King" engine has 12 more valves than ordinary Jetta at once. How awesome are you?
My squirrel was also lobbied for this "Jetta King". I used the "limit law" to measure this stall. In a small cylinder, the room is not big, only one door comes out and one enters two doors. As a result, 200 doors were opened at once. Can so many doors go in and out without chaos? By the same token, there are too many doors in this cylinder, which will definitely cause problems. I resolutely chose to buy an ordinary Jetta. Sure enough, 13 years later (20 15), my Jetta was forced to end its life because of national emission standards. But at this time, "Jetta King" has disappeared for many years because of many valves and high failure rate.
In the process of tire repair, different tires should be inflated several times a day. Removing the valve cap on the tire is very time-consuming and laborious. Many valve caps are hidden in the wheel hub cover, so it is more difficult to remove the valve caps with insulating gloves. For this reason, I designed a "valve cap remover" with the "limit law", which can remove almost any shape of valve cap. It has been used for more than ten years and still works well. It is the only tool in the world that can quickly remove the valve cover.
Thursday, 20 19, 10? Small retention flow