If there is no gravity, bubbles would not rise. I would guess a skimmer in outer space would not work. Heck holding water in a cup in outer space wouldn't work.
On a scientific note, if I put my face above my skimmer collection cup, I can feel air flowing out at a very appreciable rate.
Quote:
Originally Posted by Dan_P
You could argue that the upflow of bubbles was a contributing factor but you will find no scientific research to back up your arguement. The operation of foam fractionation and froth flotation are understood and “up flow” per se has nothing to do with the mechanism by which these devices separate hydrophobic material from water. If you ran a foam fractionator in outer space, i.e., zero G, where there is no up flow, it would work just as well, though I doubt anyone has.
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