Invention of WHEEL

At the beginning,early man uses to live without any tools in their daily life. They use man power to hunt animals, then it became difficult to kill huge animals and he thought and used sharp edged stones and wooden sticks to take over the animals and thus a new era started using tools for all purposes.
             

sharp edged tools

 Then he observed that a log of a tree starts rolling on inclined surface, and he sliced the log having circular cross sections and used. Thus he invented a wheel which transformed human history. Early human used circular discs as pulleys to draw water from wells, used as chakki (grinding stones) to grind grains and species, used heavy circular stones in oil mills to take oil from seeds and that circular shape came into use in many ways. They used them(circular shapes) as wheels for a rigid support to travel from one place to other by the

       

chakki

stone mill

 help of animals like horses,oxen etc.,
Thus wheel plays a prominent role in human history and many sharp tools are required to shape the wheels with a large interest people involved metals for strength and long life. A revolution takes place and that wheel now a days plays a prominent role in everyone's life.

 

stages of wheel