Perhaps the greatest function of wheels is to enable people to quickly move objects much larger than their own weight.
The most common use for making pottery wheels on pottery wheels is transportation. Before the invention of the wheel, the ancients used skids to carry heavy objects. The simplest skid is an inclined plane, and the more complicated ones will put a few rollers under the heavy objects-the ancient Egyptians used this method to pile huge stones into pyramids. Although the ancient Egyptians should be inspired by the roller to invent the wheel, it was not the ancient Egyptians who first used the wheel.
The technological progress promoted by the use of wheels has been accompanied by corresponding far-reaching institutional changes. The population growth allowed certain villages to develop into cities ruled by new religious dignitaries and later military and administrative chiefs. The emergence of cities is possible because of the increase in agricultural productivity. The increase in agricultural productivity has left food surplus to support the newly created priests, soldiers, and officials. This development process is not sudden or unilateral. Many people are arguing: Does technological change determine system change, or system change determines technological change? This reminds people of the debate about an early stage of human evolution: Is there a human brain before the creation of human culture, including language and tool manufacturing? Everyone has agreed that the former interacts with the latter, and language and tool manufacturing are the cause of brain development and the result of brain development. It seems that technological change and social change are the same, first interacting, and finally spurring the arrival of urban revolution and civilization. The Neolithic cultivators provided surplus goods to the ruling dignitaries, and thus turned from tribal members to farmers, not because they agreed to do so at some point or were forced to do so; on the contrary, it was a gradual The development process, in this development process, cause and effect interact and are closely related.