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| manadude2 |
 Posted: Fri Mar 07, 2008 6:36 am Post subject: Bulge at the Equator |
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Forum Freshman
Joined: 07 Mar 2008
Posts: 84
Location: At a computer on Earth in the Milky Way Galaxy... chocolate bar.
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I know the bulge is coused by the rotation of the earth, but if the earth was hit by a BIG meteor, and slowed down, whould the bulge disapear?
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| Ophiolite |
| Posted: Fri Mar 07, 2008 9:52 am Post subject: |
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Forum Radioactive Isotope
Joined: 25 Jul 2005
Posts: 4414
Location: Scotland
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If it slowed sufficinetly then the bulge would eventually disappear.
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| sak |
| Posted: Fri Mar 07, 2008 10:52 am Post subject: |
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Joined: 21 Sep 2007
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| What force would give it a different shape any way? Gravity? |
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| Wolf |
| Posted: Fri Mar 07, 2008 11:05 am Post subject: Re: Bulge at the Equator |
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Forum Lycanthrope
Joined: 15 May 2007
Posts: 1014
Location: Here
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| manadude2 wrote: |
| I know the bulge is coused by the rotation of the earth, but if the earth was hit by a BIG meteor, and slowed down, whould the bulge disapear? |
Depends on the forces of the planet's materials.
The force caused by the rotation of the planet cause the Earth's material to bulge outwards. That force had to be powerful enough to cause the material to change from its original shape. If that force stops now, there would have to be a significant enough force acting on the Earth to cause the material to reshape. Outside of gravity, if the Earth stopped rotating, it's probably unlikely that the bulge will go away.
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Wolf
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"Be fair with others, but then keep after them until they're fair with you." Alan Alda |
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| Ophiolite |
| Posted: Fri Mar 07, 2008 11:29 am Post subject: Re: Bulge at the Equator |
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Forum Radioactive Isotope
Joined: 25 Jul 2005
Posts: 4414
Location: Scotland
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| Wolf wrote: |
| . Outside of gravity, if the Earth stopped rotating, it's probably unlikely that the bulge will go away. |
The gravity will be wholly effective in removing the bulge over time. This is because the upper mantle behaves as a fluid, so that isostatic adjustments can and will occur.
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