3 ms·
Wikipedia suggests cooling of 100 degrees C every billion years. 19 million years is 1.9% of the billion year rate. So it suggests the core should lose 1.9C i
by drivebyneatfact 10y ago
Wikipedia suggests cooling of 100 degrees C every billion years.
19 million years is 1.9% of the billion year rate. So it suggests the core should lose 1.9C in 19 million years. That's about 0.035% of the total temp, using Wikipedia's 5700C as the temp estimate.
That's a great initial guess, given how much uncertainty is (i've recently heard core temp could be 4x the wiki number, and some people estimate the earth's core only has lost a few degrees since it formed, rather than nearly 500 degrees). Neat stuff, thanks for providing the opportunity to look in to this.