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why?

 
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david hobbs
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Joined: 27 May 2007
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Location: Essex
PostPosted: Mon Jul 02, 2007 5:11 pm    Post subject: why? Reply with quote
Why are stars and planets globes. OK I know there not perfect spheres but to me they are as good as.

Anyone know?
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Bravo
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Joined: 17 Jun 2007
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PostPosted: Mon Jul 02, 2007 5:59 pm    Post subject: Re: why? Reply with quote
david hobbs wrote:
Why are stars and planets globes. OK I know there not perfect spheres but to me they are as good as.

Anyone know?


It's the attraction of the particles to each other on a local scale, so on a global scale they naturally incline towards the centre of the 'weight'. The centre is the most attractive point, so the object becomes spherical.

The slightly larger equater is due to the attraction of the centre of the Sun with the moon also having some effect.
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david hobbs
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PostPosted: Tue Jul 03, 2007 12:14 pm    Post subject: Reply with quote
Thank you Bravo. Yes it is pretty obvious now that you point it out
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K.J
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PostPosted: Sun Mar 02, 2008 11:14 pm    Post subject: Reply with quote
Waffle: The planets are round cos if they were square the aliens would fall off the edge. A sphere has no edges to fall off.
This is the theory of gravity.
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Sia
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PostPosted: Thu Mar 06, 2008 8:36 pm    Post subject: Reply with quote
Enjoying your hols I see K  
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