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Aya Shawn
An arrow consists of three parts: arrowhead, arrow body and feathers.
Arrow shafts and feathers are less difficult. What's really difficult to make are metal arrowheads.
The ancient Chinese were so skilled at making metal arrowheads that they even created some kind of assembly line-like factory to produce arrowheads.


This is a bronze arrowhead discovered by archaeologists in the pit of Qin Shihuang's Terracotta Warriors and Horses 2,200 years ago.
More than 40,000 arrowheads like this have been found. Based on inscxtions on other weapons found near the arrowheads, archaeologists found that the arrowheads were made decades apart.
They may have come from military factories in different places at different times.
But all arrows remain highly consistent.
The contour error of the three sides of the Qin soldier's triangular arrow is no more than 0.15 mm, and the arrow edge adopts a streamlined three-cone space curve. After magnifying 24 times, it miraculously coincides with the outline of a contemporary pistol bullet.


In addition, metallurgical experts also conducted a metallographic analysis of the arrowheads and found that tens of thousands of arrowheads were actually cast with the same metal ratio. This means that whether in the northern grasslands or in the southern jungles, On the battlefield, all arrows fired by the Qin army at their opponents have the same quality.

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As you can imagine, such an arrow flies smoothly, is fast, and has a very high hit rate. Moreover, the arrow standards are uniform. The quality of this arrow is exactly the same as the previous arrow, and there will be no major deviation.
This is a level that only modern industry can achieve. However, this was already done in ancient China 2,200 years ago.