[PATCH 3/3] gas pressures: use an actual compressibility table for air

[Linus Torvalds]

On Feb 24, 2016 15:58, "Linus Torvalds" <torvalds at linux-foundation.org>
wrote:
>
> I have no idea of what the physical explanation is, but if you look at the
> compressibility graphs it turns out to not even be hugely unusual. To use
> a highly technical term, they are some "funky shit".

Looking into it a bit more, it looks like the van der Waals functions that
Robert might be doing will explain it. There is a combination of attractive
forces between molecules (explaining the better-than-expected compression)
and then the actual "crowding due to size" effect. The van der Waals
equations have two separate coefficients (per gas) for the two effects.

Of course, even that is still just an approximation. At some point we
probably just don't care.

      Linus
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