The Unknow Phase of Matter

God lord but Steve Mould is a brilliant communicator of science.

I've never really understood super critical fluids - even though I've posted about them before, but today's video - especially the part from about 10:20 through 14:20 or so - makes for a brilliant explanation of why fluids go supercritical at higher temperatures.

The use of the entropy and potential energy graphs in combination lays out the argument for supercriticality brilliantly.

Thanks, Steve...thteve.

AtomAnimation

 

That right there is a screenshot from AtomAnimation, a website that seems to do nothing more than provide animations of Bohr models for any element with any combination of protons, neutrons, and electrons.

It's kind of fun to play around with, though I warn you that the larger atoms take a decent amount of time to render and seemed to slow my browser down a bit while they were running.