Except we know that is impossible from simple thermodynamics, so there's no point in contemplating this "what if".
Have you done any work with this material?
No, but I don't need to work on a perpetual motion machine to know that it doesn't work.
My question would be do you have enough experience to know that it is a perpetual motion machine. I read the article and nothing sounds like perpetual motion to me. The atmosphere is always dynamic and my reading of the article was that it is using 2 different changes to harness these changes. Surface tension and atmospheric pressure seem to be the mechanisms.
I was trying to figure out if your comment was informed.