In the 1990s, after harvesting wheat in rural Linyi, what was the name of the iron drum for beating wheat pulled by tractors in various circles? Who has a picture?

Changing tractors is also a primitive threshing method.

That roller is called a wheel.

As can be seen from the font structure, this stone tool appeared in the era of "Shennong tasting a hundred herbs" more than 500 thousand years ago.

This stone tool needs to be drilled with a steel chisel to be used, and the rice shell is removed by grinding.

The wheel for cutting grain is the "roller" for crushing grain.

There is also a millstone, which is used to grind noodles in the house and is called "grinding".

……

I especially want to spit out the "scientific" judgment of the "Stone Age" ~

The history of Lu brick and roller is no less than that of Paleolithic ~

However, in order to realize the functions of mill and grinding disc, iron and steel smelting and forging technology are necessary.

What I want to vomit most is ~

What can accurately tell the people of China ~

Why did the iron and steel smelting forging technology of the ancient people in China predate the Paleolithic Age?

Is the Stone Age defined to cater to the bleak logic of a certain doctrine? !