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The Daily Motion of the Earth is Rotation
The daily motion of the Earth is known as rotation. It refers to the spinning of the Earth on its own axis. This motion is responsible for the cycle of day and night. Earth completes one full rotation approximately every 24 hours, rotating from west to east, which is why the Sun appears to rise in the east and set in the west.
Detailed Explanation of Earth’s Daily Motion
| Aspect | Details |
| Type of Motion | Rotation |
| Axis of Rotation | Imaginary line passing through the North and South Poles |
| Direction | West to East |
| Time Taken for One Rotation | Approximately 23 hours, 56 minutes and 4 seconds (sidereal day) |
| Main Effect | Causes day and night |
| Speed at Equator | ~1670 km/h (1037 mph) |
Why Rotation is Important?
Day and Night Cycle: As the Earth rotates, different parts face the Sun, causing day and night.
Time Zones: Rotation allows the establishment of global time zones.
Apparent Movement of Celestial Bodies: The Sun, Moon, and stars appear to move across the sky due to Earth’s rotation.
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