AMAZING FACTS ABOUT EARTH | पृथ्वी के बारे में कुछ रोचक तथ्य | FACTS ABOUT EARTH YOU DID NOT KNOW |

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AMAZING FACTS ABOUT EARTH | पृथ्वी के बारे में कुछ रोचक तथ्य | FACTS ABOUT EARTH YOU DID NOT KNOW |


Earth has never been perfectly round. The planet bulges around the equator by an extra percent as a result of the fact that it rotates about its axis. Earth's diameter from North to South Pole is 12,714 kilometers (7,900 miles), while through the equator it is 12,756 kilometers (7,926 miles).
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The difference kilometers ( miles)
is about 1/300th the diameter of Earth. This variation is too tiny to be seen in pictures of Earth from space, so the planet appears round to the human eye. Recent research from NASA's Jet Propulsion Laboratory suggests that melting glaciers are causing Earth's waistline to spread.
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The length of Earth's day is increasing. When Earth was formed billion years ago, its day would have been roughly six hours long. By 620 million years ago, this had increased to hours. Today, the average day is 24 hours long, but is increasing by about milliseconds every century.
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The reason? The moon is slowing down Earth's rotation through the tides that it helps create. Earth's spin causes the position of its tidal ocean bulges to be pulled slightly ahead of the moon-Earth axis, which creates a twisting force that slows down Earth's rotation. As a result, our day is getting longer — but not long enough to make a difference to your busy schedule.


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