Thread: the core
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drag
drag is offline
#2
Mar29-03, 05:54 AM
Sci Advisor
P: 1,341
Greetings !

Welcome to PF alchemist !
Originally posted by alchemist
why is the core of our earth so hot?
what causes it to be so?
Friction and nuclear decay of the heavier
elements that "sank in" during Earth's formation.
Originally posted by alchemist
and why some other stars and planets like neptune/uranus (i forgot) does no have such a hot core? and what purpose does the molten core of our earth serve?
In stars there's nuclear fusion of elements in
the center. They're extremely hot inside and
outside.

As for other planets, I believe that the same
thing happens there too, but the specifics
depend on the planet's formation and elements
present. I'm not sure about the way it works
in gas giants though.

I'm not sure what you mean by - "what purpose does
the molten core... serve ?". It's just there.

Live long and prosper.