In the history of the world, which inventors invented what?

1. At the seaside, we often see a plant called water nose. Its roots above the water firmly support the body and will not drown itself when the sea is high. People who build houses by the sea should learn from the style of pen-and-ink dolls, spread wooden stakes high on the water, much like the roots of pen-and-ink dolls inserted in the water, and then build houses on wooden stakes, so that they are no longer afraid of the invasion of seawater.

It is said that one day in 1948, the Swiss inventor George liked to take his dog out for a walk. Once he walked home and found a seed on his trouser legs and dog. Grass seeds are firmly attached to dog hair, and it takes some effort to pull them down. George thought it was strange. With keen observation, he carefully observed the grass seeds with a magnifying glass.

Finally, it was found that the fibers of grass seeds and dog hair crossed together. He thought, if these two shapes were adopted, wouldn't a buckle be invented? Since then, people have had a good helper in their lives-velcro invented by George. Today, some shoes we wear are buckled with velcro, and some schoolbags we carry are also buckled with velcro.

According to legend, once Luban went into the mountain to cut down a tree, and accidentally slipped, and his hand was cut by a leaf of a wild grass, oozing blood. He picked the leaves and touched them gently. It turns out that there are sharp teeth on both sides of the leaf. He scratched the back of his hand with these dense little teeth and even cut a hole.

His hand was cut by these little teeth. He also saw a big locust on a piece of wild grass, and many small teeth were arranged on two big dies, which could quickly grind the leaves. These two things inspired Lu Ban. He thought, if there is such a toothed tool, wouldn't it be able to cut trees quickly! So, after many experiments, he finally invented a sharp saw, which greatly improved the work efficiency.

4, plantain, leaves are spirally arranged on the stem, layer by layer, patchwork. According to the characteristic that plantain has the best ventilation and lighting effect on plants, the architect built a spiral tall building, which not only ventilated, but also allowed all parts of the tall building to receive uniform sunlight.

In nature, there is a kind of plant called Acer, and their fruit also has wings. Once they leave the plants, their wings will spin rapidly in the air, just like a living helicopter. This is also the origin of the invention of propeller.

Extended data

Other inventions

1, squared

The earliest name of the music ruler was Moment, also called Lu Banchi. Legend has it that it was invented by Lu Ban.

"Mozi Tian Shang Zhi" said: "Wheelwrights stick to their own rules to make Fiona Fang famous in the world." Rules, namely compasses and straightedge. A ruler consists of a ruler handle and a ruler wing, which are perpendicular to each other at right angles. The ruler handle is one foot shorter, mainly for measuring. The length of the ruler wing is uncertain, and the longest is twice that of the ruler handle, which is mainly used for measuring right angles and balance lines. Woodworkers use rulers to measure right angles, planes, lengths and even balance lines.

2. Mo Dou

Mo Dou is a tool used by carpenters to smash things, which was invented by Lu Ban. The tool uses a bucket to store ink. One end of the rope is dyed through the ink hole. At the end of the dyeing rope is a small wooden hook called "Ban Mu", which was invented by Lu Ban's mother. Class mothers are usually about a foot above the ground.

After fixation, the dyed rope bounces back to the ground and is used as a horizontal straight line standard at the construction site. In addition, the class mother can be fixed on a high place, suspended by Mo Dou, and the dyed steel wire rope can be pressed to the wall by using the weight of Mo Dou, which is a straight line standard. The master stonemason fixed the shape of the stones collected by the bucket line, and then knocked off the unnecessary parts with other tools to form stones such as plates and feldspar with the required shape.

3. Ancient weapons

Hooks and ladders are commonly used weapons in the late Spring and Autumn Period. Mo Wen records that Lu Ban changed the hook into a "strong hook" for ship warfare. Chu used this device to fight a water war with the Vietnamese army. Hook the boat when it retreats, and push it away when it passes. "Mozi's public loss" records that he changed the ladder into a ladder that can stand in the air to attack the city.