chatlack Posted May 20, 2005 Report Posted May 20, 2005 Could you explain me why the core of earth is hot? Quote
UncleAl Posted May 20, 2005 Report 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
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