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@0h00000000 Did they say how it worked? Fully solid state air moving with no moving parts is... rare.

I know of one company that was exploring this via thermal transpiration (Knudsen pump). Did a bunch of MD simulations for them but it was basically in the realm of space elevators, "would be great, if only we had a magic material with properties that are theoretically possible but far in excess of anything we know how to produce"