Archaeology is a mysterious and great undertaking. At that time, when people enjoyed this exquisite and design-oriented cultural relic in the library, it was discovered after archaeologists observed every inch of land and carefully excavated it. Through these cultural relics, we can not only explore history, but also have a deeper understanding and understanding of history.

1992, a "pistol" was found in the ancient tomb of Han Dynasty. In people's impression, cold weapons, such as swords or bronze weapons, were usually used at this stage of the Han Dynasty. If a pistol is found, the study of history can be said to be a very important discovery.

In fact, what archaeologists found was not a pistol in the real sense, but a vernier caliper, which was very similar in appearance to a pistol. Its shape is like a number seven, which is very similar to the current pistol style, and the discovery of this vernier caliper is also of great significance to the study of history.

First of all, its material is bronze, its technology is very mature, and there are exquisite carvings on its surface, which shows that the wisdom and craftsmanship of ancient working people are very exquisite. This kind of handicraft also has the greatest value and function. It can be used to measure the height and width of an object, and can also be adjusted at will.

Now the vernier caliper technology is very mature, which can be used to measure some very small things with high accuracy. The ancient bronze vernier caliper is very similar to the modern vernier caliper, and its usage is similar.