The critical point

[sniffnoy]

I really want to see a critical point demonstration where you have, like, a rectangle of some fluid, and somehow you have a temperature gradient across one dimension, and a pressure gradient across another, with the critical point in the middle, so that like you can see that there is a phase boundary that runs across part of it until it stops in the middle.

...is that possible? Because I really want to see what that looks like.

Comments

[pklemica]

maybe not perfectly constant but I think you could have temperature-regulating structures just outside the tank, like, pumping the right temp up along its back the whole time? If it's a thin enough tank that'll get you something close to what you want

This is growing into a pretty big-budget experiment

[sniffnoy]

Yeah it doesn't have to be perfect it just has to be good enough that you can see a boundary with an endpoint! :)

This is growing into a pretty big-budget experiment

Haha I suppose it is!