Luban s hands were cut by thatch, so he invented the saw . What did he make of saw blades?

He used iron to make saw blades, and the technology of iron smelting was already available at that time, but it was not as developed.

It should be a saw blade made of bronze. At that time, bronze was already widely used, and it was also a very good material for making tools at that time.

Luban invented the saw based on its leaves, do you know what plant it is.

He used a saw blade made of iron, because iron had already appeared during the Spring and Autumn Period and the Warring States Period.

With iron, there was already iron-making technology at that time, although it was not as developed as it is now, but it was still possible to make saws.

Lu Ban stumbled upon the small fine teeth on the thatch, through careful observation, serious thinking, and so on to invent the saw blade, we should carefully observe the details in life, seriously think about the principle, to draw inferences from one another, and understand it thoroughly. At the same time, there is a connection between things, and everything will have some kind of connection.

Legend has it that one day, when Luban was going up the mountain, one accidentally slipped and was cut by a weed. Lu Ban took a closer look, and there were many small teeth on both sides of this leaf. He thought, wouldn't it be equally sharp if the tools used to cut wood were made jagged?

Thus, the saw was invented.

Labor creates wealth, and practice produces true knowledge. Labor is the only source of value creation, and the great inventions of ancient and modern China and foreign countries are all produced in the wisdom of labor. And Luban saws once again proved this great truth.

Be observant. Be good at gathering information. Elevate perceptual cognition to a space of rational cognition. Invention is people-oriented, in order to facilitate life and transform life, rather than the pursuit of luxury and nothingness.

Lu Ban stumbled upon the small fine teeth on the compound thatch, and made it through.

After careful observation, careful thinking, and so on to invent the saw blade, we should carefully observe the details in life, seriously think about the principle, and draw inferences from one case to another. At the same time, there is a connection between things, and everything will have some kind of connection.

The inspiration of the story is to pay more attention to the details around you in life, pay attention to many inconspicuous little things, and increase a lot of wisdom.

These things tell us that we must be good at observing the bits and pieces of life, many small details, all inventions and creations are people-oriented, as long as we seriously experience it, we can get sublimation from the depths of our hearts.

This story gave me a lot of inspiration and made me know to be a person with a heart for life, be good at observing life, and discover the mysteries in life.

Create** by observation and imagination. Lu Ban was inspired by the "leaves with sharp teeth" and "locusts that can grind the leaves with small teeth", and thought that "toothed tools can quickly cut trees", which led Lu Ban to invent the saw. The story of Luban's saw-making tells people that there is nothing difficult in the world, but only those who have a heart.

Observe carefully in life, think about small things, and think of different points of view from others. And when you put it into practice, you will gain something.

This story gave me a lot of bai

The revelation made me know that I want to be a person with a heart to live, be good at observing life, and discover the mysteries of life. In fact, many of the problems we encounter can be answered by what we have experienced before. Many things are related to life, and there are many answers that we want to know.

Don't read dead books, read dead books, learn to flexibly apply scientific knowledge, broaden your horizons, don't play dogmatically, give full play to your subjective imagination and observation, and make knowledge my own and used to solve the productive forces.

There is nothing difficult in the world, but I am afraid that Bai has a heart, as long as du

You usually pay attention to zhi, observe carefully, think hard, be willing to use your brain, invention is around you, and the sense of innovation will slowly develop.

Ban was a highly skilled craftsman in the Lu State during the Spring and Autumn Period. According to legend, once undertook to build a large palace, which required a lot of wood. At that time, there were no saws, not many trees could be cut in a day with an axe, and there was not enough wood.

The mountain is very steep, and when he climbed up, he cut his finger with a straw in one hand, and Lu Ban was very surprised.

On the way home, I would pick a thatch and take it home to study. When I looked left and right, I noticed that there were many small teeth on both sides of the thatch. At this time, Lu Ban remembered this incident, if we cut these trees into iron teeth like thatch, can't we see these trees?

So together with the blacksmith, they tried a piece of iron with teeth. Took it to see a tree, and it worked.

The leaves of the weeds scratched the hand of the Lai Luban, excited.

Since Luban's bai thinking, saws were born. Newton saw an apple from a tree.

Zhi fell He thought seriously and discovered the law of gravitation. Franklin discovered the law of conservation of electric charge with a kite experiment. Life is full of learning, as long as you dare to explore the unknown, you will definitely get unexpected gains.

A story is actually telling us that as long as we persevere. Discover the things around you and observe them carefully. Have a pair of eyes that see through beauty. You too can become a person like Luban. A common saying. There is nothing difficult in the world, but I am afraid of those who have a heart.

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It is to give people such a revelation: there is nothing difficult in the world, only afraid of people with hearts, as long as you usually pay attention, observe carefully, think with your heart, and be willing to use your brain, invention and creation are around you, and the sense of innovation will slowly develop.

Luban was inspired by weeds with small teeth on both sides to invent the saw. One year Luban accepted a big task - to build a large palace. It required a lot of grinding wood, but the deadline was tight.

His apprentices went up the mountain every day to cut wood, but the efficiency was too low, and the wood was still far from enough, delaying the progress of the project.

He was very anxious, so he went up the mountain to inspect it himself. When I was going up the mountain, I occasionally pulled a handful of a weed that grew on the mountain, and my hand was cut at once.

So he folded off the grass and looked at it carefully, and found that there were many small teeth on both sides of the grass, and his hand was cut by these small teeth. Since the teeth of the grass can cut my hand, the iron bar with many small teeth should be able to cut through the tree.

Later, with his idea and the help of a metal craftsman, Luban made the world's first saw - an iron bar with many small teeth. He used this rudimentary saw to saw trees, and sure enough, it was fast and labor-saving, and the saw was invented. Take a cue from this story:

Practice produces true knowledge and delves into wisdom.

From the story of Lu Ban's invention of the saw, we can draw the enlightenment: there is nothing difficult in the world, only afraid of people with hearts. We must be good at observing the bits and pieces of life, and a small thing and an experience will be a valuable asset in life.

Creativity is in life, and the bits and pieces of life can constitute infinite creation.

The story content of "Luban Saws":

Once Luban and his apprentices were tasked with building a large palace, which required a lot of timber, and he told his apprentices to go up the mountain and cut down the trees. At that time, there were no saws, and he could not cut down many trees a day with an axe, and the supply of wood was in short supply, so he was in a hurry, so he went up the mountain to see it himself.

At that time, the mountain was very steep, and it was a little difficult to climb up, Lu Ban didn't pay attention, his feet slipped, and he hurriedly grabbed the grass growing next to him with his hand, but he didn't expect that his hand was cut by the leaves of a weed, and blood immediately oozed. So he took off the leaves and took a closer look, there were sharp teeth on both sides of the leaves, and he used these dense little teeth to lightly scratch the back of his hand, and actually cut another hole. It turned out that his hand had been cut by these little teeth.

Looking at the few small openings in his palm, Lu Ban fell into deep thought. He thought that if he had such a toothed tool, wouldn't he be able to sawn trees very quickly? So, after many experiments, he finally invented a sharp saw, which was really good, and soon sawed off the trees, which greatly improved the work efficiency.

Later, Luban named this newly invented tool "saw".