The story of China's celebrity inventions is a little shorter.

1, the story of Luban inventing the plane

Luban is a carpenter and works with wood all day. He is very skilled, especially good at cutting wood into the required shape with an axe. However, it is impossible for Lu Ban to cut the wood smoothly with an axe, especially when it comes to wood with thick grain and many scars.

In order to solve this problem, Lu Ban pondered during the day and thought at night. First, he made a thin axe, which was quickly sharpened. Much better than before, but still not ideal.

So, Luban ground a small and thin axe, covered with a piece of iron, leaving only a narrow blade. This time, Luban won't cut it. He pushed the wood with this narrow blade. Push, the wood pushed down a thin layer of sawdust. After a dozen pushes, the surface of the wood is flat and smooth, which is much better than that cut with an axe in the past.

But when this thing is pushed in your hand, it is both stuck and invalid. Lu Ban made another wooden pedestal and put it in. So the plane was born.

2. The story of Lu Ban inventing Mo Dou.

Lu Ban created a carpenter's Mo Dou for marking, which was the result of his inspiration when he saw his mother cutting clothes with powder bags.

When Mo Dou just finished playing, Lu Ban asked his mother for help every time he played the line, holding one end of the chalk line. Sometimes, when mom is making clothes or cooking, she has to put it down to help.

One day, Lu Ban's mother said to him, "Why don't you make a small spoon and hold the chalk line instead of me?" Hearing this, Lu Ban was right! He quickly made one. From then on, one can play with chalk lines. Until now, carpenters have called this small hook "plank wood".

3. The story of Cai Lun's papermaking

When improving papermaking, Cai Lun was responsible for supervising all kinds of utensils used in the palace. He picked out bark, rags, old fishing nets, etc. And let the craftsmen chop them up and soak them in a big pool. After a period of time, the sundries in it rot, but the fibers are not easy to rot, so they stay.

He asked the craftsmen to pick up the soaked raw materials, put them in a stone mortar, and kept stirring them until they became slurry, then picked up the sticky things with bamboo sticks, dried them and turned them into paper. Cai Lun and his craftsmen tried again and again, and produced light, flexible, easily available, widely available and low-priced paper.

In the first year of Yuan Xing (A.D. 105), Cai Lun presented paper to Han and Emperor? Cai Lun wrote the paper-making method into a memorial and presented it to the emperor together with the paper, which was appreciated by the emperor, so the imperial edicts were used and promoted inside and outside the imperial court, which was regarded as a miracle by various government offices and all over the country.

Nine years later, Cai Lun was named "Longtinghou" with 300 restaurants. Because the new paper-making method, which was gradually implemented throughout the country, was invented by Cai Lun, people called this kind of paper "Cai Hou Paper".

Cai Lun's papermaking has spread all over the world along the Silk Road through Central Asia and Western Europe, making an indelible contribution to the inheritance and development of world civilization.

4. The story of the Dai Li Invention Association.

Dai Li invented a weapon called Julien Huozi, also called 28 Julien Huozi. Behind the shovel is a magazine, which can store 28 rounds of gunpowder lead bullets. There are two cutting machines, which are connected with each other. When one machine is pulled, the ammunition falls into the barrel, and at the same time, the other machine is released and fired. Shaped like a pipa, it can fire 28 rounds in succession.

However, Dai Li did not dedicate Julian to the military camp, but "hid it at home". The reason is said to be scared by a dream. One night, while Dai Zi was sleeping, she had a strange dream. The dreamer scolded him and said that God has the virtue of living. If you give this device to the world, your descendants will have no way out.

5. The story of Bi Sheng inventing movable type printing.

The early printing method was to engrave pictures and texts on wooden boards and print them with ink. Today, this method is still used for wood watermark painting, which is collectively called "block printing". ?

Bi Shengchu is a printing factory worker, specializing in manual printing. In the practice of printing, he knew the difficulty of block printing, summed up the experience of predecessors and invented movable type printing. The method, Shen Kuo in Meng Qian Bi Tan has a specific record.

From13rd century to19th century, movable type printing invented by Bi Sheng spread all over the world. People all over the world call Bi Sheng a great revolutionary in the history of printing. There is no second document about Bi Sheng's life and the process of his invention of movable type printing, except that recorded by Shen Kuo in Meng Qian Bi Tan.

Shen Kuo only said that he was a commoner, but he didn't give any explanation about his native place and life experience. The so-called cloth clothes literally mean ordinary people who have never been an official. There have been various speculations about Bi Sheng's occupation before, but the most reliable statement is that Bi Sheng should be a craftsman engaged in block printing.

Because only those who are familiar with or proficient in carving technology can become the inventors of movable type. Because Bi Sheng has been engaged in engraving for a long time, he found that the biggest disadvantage of engraving is that every book has to be re-engraved, which not only takes a long time, but also increases the printing cost.

If you change to a movable type version, you only need to engrave a movable type, and you can print any book, and the movable type can be used repeatedly. Although the project of making movable type is bigger, it is very convenient to print books in the future. It was under this inspiration that Bi Sheng invented the movable type edition.