Earth’s Engine Exposed
Interestingly, the iron inner core of the earth is said to be as hot as the surface of the sun, yet completely solid due to the pressure of the weight of everything above it even though it is way beyond melting temperature. The outer core however flows more like a liquid, the rotation of which contributes to the invisible yet valuable magnetic field that extends beyond the earth a lot further than the atmosphere does, as well as providing energy for a whole bunch of other geological events that both destroy and create. One could say the earth is only alive on the surface because it’s alive on the inside. And that’s why geology rocks.
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