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Friday, October 22, 2010

What causes the earth to rotate?

Our planet earth moves one degree..anticlockwise..every 4 minutes..... a simple question what causes the earth to ROTATE?Iam not copying and pasting this out simply through internet...this question came to my mind and i lost em anyhow..but recollected lastnight..and started asking everyone..also..obviously the internet!!!so lets begin.
The cause of rotation dates back to the day when earth was born, maybe due to a big collision, or the other way....but it simply caused the earth to rotate. Now here comes ANGULAR MOMENTUM. In physics they say that in space there is NO ATMOSPHERE..therefore no force...so basically without any force..there will be no change in earth's rotation(principle of ANGULAR MOMENTUM).thus our earth rotates from the day it was born!!!QUITE AMAZING!!!
Posted by Madhira Krishna Kartik at 5:35 AM

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