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- Title
Geophysics: A new turn for Earth's rotation.
- Authors
Jackson, Andy
- Abstract
The article offers information on the angular momentum of the Earth. Atmospheric winds and oceanic tides mediate its interchange. The twice daily tides which were raised by the moon used to slow down the earth. The impact was so strong that billion years ago the length of the day was shorter by 25 percent. Due to it the earth loses the angular momentum. The wind which presses the surface of the earth can alter its rotation rate, which eventually changes its angular momentum. Angular momentum can be calculated if the earth surface velocities are known. This calculation was done 20 years ago which revealed consistency between angular momentum and speed of mantle rotation.
- Subjects
ANGULAR momentum (Nuclear physics); MOON; DAY; WINDS; TIDES; SPEED; SURFACE of the earth; ROTATION of the earth; EARTH (Planet)
- Publication
Nature, 2010, Vol 465, Issue 7294, p39
- ISSN
0028-0836
- Publication type
Article
- DOI
10.1038/465039a