I believe many of us have read the text "Public Decline" when we were young, which is about the contest between Mozi and the public transport class in some urban defense machinery during the Spring and Autumn Period. In the end, although the bus class lost to Mozi, its exquisite machinery was also amazing. Bus class has a well-known name, that is Luban. His inventions are numerous, but he has an exquisite machine that is still being played by everyone, and that is Luban Lock. Its magic lies in that it is still very strong without using nails or other external forces.

First, the use of mortise and tenon structure The most magical thing about Luban lock is the use of mortise and tenon structure, which is to pay attention to the concave-convex combination between wood. But also a Rubik's cube lock, probably similar to today's Rubik's cube. It has a four-sided structure, but there is a difference inside, that is, the Rubik's cube lock is made of six pieces of wood with similar shape and appearance. But when we take the Luban lock apart, we will find that there are five dents in the middle, and only one is solid, so the key to unlocking is to find this solid wood.

Second, the application of Fiona Fang's truth In fact, the Luban lock has an arc structure in addition to wooden strips. Among them, the round Luban lock is probably similar to the seismograph, but the middle is still the original wooden strip, just adding an arc around it. Between Fiona Fang, it seems to represent the combination of rigidity and softness, while Luban Lock is such a combination of rigidity and softness, which requires not only active hands-on ability, but also quiet thinking ability.

Third, the truth of harmony but difference In fact, Lubanzo is essentially a truth of harmony but difference, and it is the earliest theory of seeking common ground while reserving differences. It is not as complicated as other exquisite structures, but adds a little different element to the same thing. This tells people that things that look the same on the surface also contain different special situations, and they are often linked together. Therefore, it is necessary to be good at discovering to solve puzzles.