Comment Deng, Hani, Ma: thanks! (Score 1) 24
I will not pretend I understand the paper, but this is a big deal! I find it annoyingly funny that the very mathematical definition of the continuity hypothesis (on which fluid dynamics is based), that the density equals the limit of DeltaMass/DeltaVolume for DeltaVolume going to zero, will break up if you actually apply it in reality: for volumes down at the atomic level the mass is not equally distributed anymore unless you use probabilities. This is very helpful in explaining some fluid dynamic principles, like Bernoulli's principle. Deng et al. got our back!