Tell us an interesting random fact you stumbled across (Part 1)

[LSLGuy]

Not quite stumbled since I went to look up my facts deliberately, but it was triggered by stumbling on the post just above mine:

Is there really a Planet 9 out there in the Kuiper Belt?

Cool find! So Earth gravity is adding 25% to Earth’s density (4.4 → 5.5). To my non-expert intuition that’s a gigantically big multiplier when you consider how incompressible most of Earth’s materials are. And that some of the stiffest densest stuff is where the pressures are greatest. Which raises an interesting thought … Earth’s gravity is highest at the surface and decreases as you go down towards the center whereat gravity is zero. The pressure goes up monotonically as you descend beca…