Explain how the wheel was a significant historical invention, in terms of its advantages over friction? Justify your answer.

Explanation

**Step-by-Step Text Solution:**

1. **Introduction to the Wheel**: The wheel is one of the most significant inventions in human history, primarily used for transportation. Its design allows for the movement of objects, making it easier to transport goods and people.

2. **Mechanism of Movement**: The wheel operates by rolling. When a wheel rolls, it rotates around its axis, which allows it to move forward. This rolling motion is crucial because it minimizes the resistance encountered during movement.

3. **Point of Contact**: When a wheel rolls, the point of contact with the ground is very small and continuously changes. Unlike sliding objects, where the contact area remains constant, the wheel's contact point shifts as it rolls. This characteristic is essential for reducing friction.

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