1. The story of Lu Ban’s invention of the ink fountain
Lu Ban invented the ink fountain used by carpenters to mark lines. He was inspired by this when he saw his mother using a powder bag to draw lines when cutting clothes. result.
When the ink fountain was first made, Luban had to ask his mother to help him hold one end of the ink thread every time he flicked the thread. Sometimes, my mother would have to put down her clothes or cook and rush to help.
One day, Lu Ban’s mother said to him: “Can’t you be a little spoon and hold the ink line instead of me?” When Lu Ban heard it, he was right! He quickly made one. From then on, one person can play the ink line. Until now, carpenters still call this little hook "the class mother".
2. Watt invented the steam engine
Watt was at his grandmother's house when he was a child. He loved being in the kitchen and watching his grandmother cook.
One day, my grandmother put a pot of water on the stove. Later, when the water boiled, the lid of the pot made a crackling sound and kept jumping up. Watt stared at the kettle for a long time and felt it was amazing, so he asked his grandmother curiously what the reason was.
Grandma replied: "When the water boils, that's it." Watt continued to ask: "Why does the lid of the kettle jump when the water boils? What is pushing it?"
But his grandmother was too busy and had no time to talk to him, so she said impatiently: "I don't know. Children shouldn't ask these questions." Watt was very sad. He didn't find the answer from his grandmother, so he had to find the answer on his own.
For several days, Watt squatted by the stove and observed. Watt observed very carefully, and he found that the lid of the pot was quiet at first, but after a while, when the water boiled, it would make a gurgling sound. Soon, the water steam in the pot will come out, the lid of the pot will be pushed up, and it will start to beat. The higher the steam rises, the more the lid beats.
Watt was so happy that he took the trouble to uncover and cover the pot, cover and uncover it, and check it again and again. He even brought a cup and placed it on top of the steam.
After many experiments, Watt finally figured out that it was the water vapor that pushed the lid to beat. Inspired by water vapor, Watt later invented the steam engine.
3. The invention of the chair
It is said that in the ancient Han Dynasty, there was a loving couple in Lanyang City. The husband was studying late at night, and his lover always hugged him quietly behind him. He was used to this. Warmth invented the chair!
According to literary records, ancient Chinese chairs appeared in the period of Emperor Ling of the Han Dynasty (168-189). They were originally called Hu beds or Mazha Hu beds. They were widely used from the Wei, Jin, Southern and Northern Dynasties to the Sui and Tang dynasties. Rich and powerful people not only have a necessary room in their home, but also have to have a bed carried by their attendants for temporary rest when traveling.
4. The story of Lu Ban’s invention of the plane
Lu Ban was a carpenter and worked with wood all day long. He is very skilled and is particularly good at using an axe. He can chop wood into the desired shape in just a few strokes. However, Luban couldn't chop the wood smooth with an axe, especially when it came to wood with thick grain and many knots.
In order to solve this problem, Lu Ban thought about it during the day and at night. He first made a thin axe, which he sharpened quickly. The cutting was much better than before, but it was still not ideal.
So Luban sharpened a small, thin axe, and covered it with a piece of iron, leaving only a narrow blade exposed. This time, Luban didn't cut it. He pushed against the wood with the narrow blade. With one push, the wood pushed down a thin layer of wood chips. After pushing for more than a dozen times, the surface of the wood was flat and smooth, which was much better than using an ax to chop in the past.
But when I hold this thing in my hand and push it, it gets stuck in my hand and makes it difficult to exert force. Luban made another wooden base and placed it inside. This is how the plane was born.
5. Al Dickson invented the Band-Aid
El Dickson is an employee of Johnson & Johnson and has just married his wife, Josephine Knight. The couple were very loving. Mrs. Dixon loved preparing food for her beloved husband, but she was clumsy and often hurt herself. After the wound is wrapped with a bandage, it cannot be fixed well, and the bandage will fall off on its own if you are not careful.
The power of love makes El. Dixon had an idea: He started trying putting gauze in the middle of each bandage. In this way, when his wife is injured again, she can use this kind of bandage to quickly bandage the wound. It will not fall off easily, and the wound can be quickly treated in less than thirty seconds.