Re: The antics of thermodynamics, the depravity of relativity, the bunkum of quantum

On Sun, 9 Mar 2025 20:50:06 +1100, Peter Moylan <peter@pmoylan.org>
wrote:

>
Think of a cone, or similar shape, whose point is at the centre of the
earth. You can separate out a section with thickness dr, and write down
the force balance equation for that slab. (This, too, is first year
physics.) From that you get a differential equation for the pressure as
a function of radius. No matter what simplifications you make, you will
get the same conclusion: the deeper you go, the higher the pressure.
Which is something that ocean divers can confirm from their own experience.

Right, thanks.

The pressure going deeper always increases, assuming it is
transmitted.  Whether it is metal or hot fluid, the transmission
is good.

The real-world heating by radioactive decay is not trivial, but
that isn't a part of the other issue.

--
Rich Ulrich