Hank takes us on a journey to center of the Earth to explain both how the solid core formed and why it is so important for life as we know it.
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Links to references for this episode can be found in the Google Document here: http://dft.ba/-22GU
Tagged under: scishow,science,geology,earth,core,crust,mantle,nickel,iron,iron catastrophe,gravity,pressure,convection,dynamo action,magnetic sphere,radiation,jules verne,hank green,juicy,Earth' Not-So-Juicy Center
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