5
   

What is there in the center of the earth?

 
 
Reply Fri 2 Jan, 2015 03:27 pm
Is it a liquid or a solid core? And, since nobody can go there to verify, how scientists can know how is the inside of the earth? Do they actually know or they just have suppositions?
 
dalehileman
 
  0  
Reply Fri 2 Jan, 2015 03:56 pm
@SebastienXyz,
Seb, given all that pressure and all that insulation I'd long assumed it's fluid
glitterbag
 
  1  
Reply Fri 2 Jan, 2015 04:00 pm
@dalehileman,
I suspect you will see a sign telling you how many more miles to China
0 Replies
 
timur
 
  3  
Reply Fri 2 Jan, 2015 04:04 pm
Dale wrote:
given all that pressure and all that insulation I'd long assumed it's fluid
Another one of your baseless assumptions


Wiki wrote:
The Earth's inner core is the Earth's innermost part and according to seismological studies, it is a primarily solid ball with a radius of about 1220 kilometres, or 760 miles
dalehileman
 
  0  
Reply Fri 2 Jan, 2015 04:40 pm
@timur,
Quote:
Another one of your baseless assumptions
Well then Tim,maybe at least very hot
farmerman
 
  2  
Reply Fri 2 Jan, 2015 08:51 pm
@SebastienXyz,
Look up Adam Dziewonski and the PREM model or go to one of the Calif Uniz for a newer model called a REM model. These are tools that, like weather models, disagree and one guy takes shots at the other. Dzieonski's has been in use since 1980 and its pretty good for showing up the approximate different seismic zones beneath the earth.
There are at least 2 liquidus layers in the mantle and the core. Several mdels want to show an aditionl liquidus but , what the hell, nobody's yet drilled out any of them.

Penn State made up a nice cross sectional color 2d models based on PREM . Let it be said that the earth is spherically layered like a Smith Island Cake, lotsa layers , some wet. The central portion of the core is...... well that's another story.


0 Replies
 
farmerman
 
  2  
Reply Fri 2 Jan, 2015 08:57 pm
@dalehileman,
This lady lives at the center of the earth wth TARZAN. She hot enuff?

   https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcTwp06UjauMeNPa4zz5YrXPjxLiLAf2Tz_EOTlN5aot75Dl__RG
0 Replies
 
33export
 
  1  
Reply Fri 2 Jan, 2015 10:07 pm
this Wikipedia piece,Formation Of Planets, is worth a read
on the accretion theory of the solar system's origin.

If Earth started as a fragment of a solar nebula, then
it's conceivable that Earth still retains its some of its
original heat at the core.

0 Replies
 
 

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