What are the differences between the ancient wheel and the modern wheel
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Evolution of the wheel. Early humans in the Paleolithic era (15,000 to 750,000 years ago) discovered that heavy, round objects could more easily be moved by rolling them than bulky, irregular ones. It was about the same time that the wheel was first used for transportation on chariots.
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ANCIENT WHEEL: Wheels first appeared in ancient Mesopotamia, modern-day Iraq, more than 5,000 years ago. They were originally used by potters to help shape clay. Later, wheels were fitted to carts, which made moving objects around much easier. ... Turning the axle turned the entire wheel, saving both time and energy.
MODERN WHEEL: a MODERN wheel is a circular block of a hard and durable material at whose center has been bored a circular hole through which is placed an axle bearing about which the wheel rotates when a moment is applied by gravity or torque to the wheel about its axis, thereby making together one of the six simple
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