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A comment on Unimpeded Permeation of Water Through Helium-Leak–Tight Graphene-Based Membranes. Parent comment
> Diffusion of other molecules is blocked by reversible narrowing of the capillaries in low humidity and/or by their clogging with water.
So in the absence of the water, the He would escape.
[0] heh
> Diffusion of other molecules is blocked by reversible narrowing of the capillaries in low humidity and/or by their clogging with water.
So in the absence of the water, the He would escape.
[0] heh