It is said that Lu Ban invented the "saw" because his hand was cut by thatch. But there was no steel in those days, so what did he use to make the saw blade?

I believe that many people are aware of Lu Ban, because the elementary school textbooks have a lot of stories about him, like the invention of Lu Ban ruler, umbrellas and saws. It can be said to be an ancient inventor.

According to legend, one day Lu Ban just came home, was called by his father to cut down the tree, always use the axe to cut down the tree, all day long tired, from morning to night can only look at a few trees. One day, Lu Ban in the close of work, suddenly feel feet on the stomach was scratched, look down, there is a very long scar. On closer inspection, he was "sawing thatch".

The grass is on both sides of a sharp teeth, Lu Ban returned home, looking for a piece of bamboo, modeled after thatched leaves, see a neat line of teeth. Toward the tree a pull, the bark appeared a deep groove. Then he ran to the village blacksmith's house and asked him to beat a piece of iron out in the likeness of this bamboo. This is the saw that started it all.

We all know that the blades of saws nowadays are made of steel, and in ancient times, there was no such material as steel. Then the ancient saw blade is made of what na, in fact, the ancient saw blade is made of iron. The saw blade was made of iron because there were blacksmiths in Luban's time.

But, in fact, we need to know that the saw created by Luban is actually false. Because by archaeologists in 1931, found a saw made of mussels, and this thing from us by 2,700 years, and Luban is only 2,500 years away from us, so this mussel shells made of saws than Luban is still more than 200 years ago, in addition, in the era of 10,000 years ago, also found with a saw tooth to.

It turns out that something like a saw can't really be considered a Lu Ban creation. But still, the story of Luban making a saw tells us that we should learn to discover things in life and also think well.