Wheel: The Greatest Discovery By Human

The earliest evidence of wheels found in ancient Mesopotamia dates back to 3500 BC. These wheels were used by pottery makers. Evidence found everywhere about the wheel suggests that the wheel is a relatively new invention from many things. By the time there is evidence for the wheel; a man had developed a complex society consisting of economic, social, and religious systems. The animals were domesticated and were being farmed for many centuries. Experts attribute this delay to the fact that the wheel won't come naturally, also most of man's inventions were inspired by the physical world. But naturally, there are no examples to inspire humans that the wheel can be useful. In a situation, making the wheel is an example of a human's ability to invent. Wheels, the first to be used by humans, have been used in pottery for thousands of years. Stay in the center. The first lathe machines were made.

The pot makers used to stir them by hand or foot. A few centuries later, three millennia before Christ, pottery makers started using wheels. They started using heavy stones so that walking could generate more energy. It was a challenge to think of modifying this idea to make a vehicle. This required a deep understanding; this could be only be done with metal tools.

For the wheels to rotate in such a way that friction would not interfere with them, it was necessary to have a round hole in the middle. Also, the pole on which this wheel was to be mounted, it was necessary to be round and soft. Not only this, but it was also necessary to fit the pole properly. If it's too loose, the wheels will wobble, if there's too much tension, they won't spin properly. The thickness of the pole should not be much, as it would have caused more friction. If it was too thin, it would have broken. Anthony explains in his book, in vehicles used to lift heavy objects, it was effective to have a shorter shaft with a smaller diameter. So the shaft was only a meter long in the early bars. Experts say that the development of such a delicate system may have happened in several stages, there is doubt. Its structure must have been prepared in one go. It will probably never be known who first made the wheel, but archaeological evidence suggests that the invention spread rapidly to Eurasia and the Middle East.

By: Srishti Rathod

Content: https://www.smithsonianmag.com