The general invented the writing brush.

Students, do you know what we usually write with? Yes, now we usually use pens, ballpoint pens and pencils, and sometimes we type on the computer. But before it was mentioned, people often used brush to write and draw. China's calligraphy and Chinese painting are very famous in the world.

So who invented the writing brush?

In ancient times, there was a general named Meng Tian in the State of Qin. He led an army to attack another country, Chu. The war is very fierce. In order to let the king of Qin know the situation of the war in time, General Meng Tian had to write battle reports regularly and send soldiers to see the king of Qin on fast horses.

At that time, people wrote on silk with bamboo sticks dipped in ink. This kind of pen is called "Yu". Every time Meng Tian is used to write articles and situation reports, he always feels uncomfortable. "Yu" is tough and tough, with less pen and ink. If he can't write a few words, he has to stop to dip in ink, but when there is too much ink, the ink drops straight down and stains the precious silk. In this way, he was very angry. So, how can he make Yu convenient and easy to use?

When not fighting, Meng Tian likes to go hunting in the wild. Once he shot some rabbits, which were heavy in his hand. A rabbit's tail dragged on the ground, and blood dragged tortuous traces on the ground. When Meng Tian saw this, his heart suddenly moved: Isn't it better to write with rabbit's tail than to dip it in ink?

After returning to the barracks, he cut off the tail of a rabbit, put it on a bamboo tube and tried to write with it. But the rabbit hair is too bright to absorb ink, and the words written on the silk are intermittent and out of shape, which wastes a good silk. In a fit of pique, Meng Tian threw "Mao Yu Rabbit" into a rock pit in front of the door and ignored it!

A few days passed, and Meng Tian still didn't find suitable materials. One day, he walked out of the barracks and wanted to breathe some fresh air. Inadvertently, he found the "rabbit hair jade" he had thrown away in the rock pit. Meng Tian picked it up and pinched the rabbit hair with his fingers. He felt that the rabbit hair was wet and the color turned white. He immediately ran back to the barracks and dipped it in ink. At this time, the rabbit's tail became very obedient, absorbed enough ink, wrote smoothly, and the font became round and full.

Why on earth is this? It turns out that the water in Shanshikeng contains lime. After soaking in alkaline water, rabbit hair becomes soft.

Since then, people have started to make writing brushes in this way.

Students, now you know the arrival of the brush! The military commander used his intelligence to give people a good learning tool-a writing brush.

Then we now understand that "pay more attention to the things around us and let us find that science is around us!" "