chatlack Posted May 20, 2005 Report Share Posted May 20, 2005 Could you explain me why the core of earth is hot? Quote Link to comment Share on other sites More sharing options...
chatlack Posted May 20, 2005 Author Report Share Posted May 20, 2005 ?? Quote Link to comment Share on other sites More sharing options...
UncleAl Posted May 20, 2005 Report Share Posted May 20, 2005 1) Liberated accretion energy, http://www.answers.com/topic/gravitational-binding-energy 2) Radioactive decay of uranium, thorium, potassium-40, etc. 3) Progressive exothermic crystallization of the iron core. 4) Thick peripheral thermal insulation - the overlaying rock. Quote Link to comment Share on other sites More sharing options...
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