Since there are no frictional forces acting on the superfluid my intuition would tell me that there is no way for the liquid to "climb" the sides of a container. Obviously though, intuition isn't the best thing to go by when it comes to superfluids. I'm just wondering: what mechanism drives it to climb up when there's no fluid there in the first place? A slightly different question and one that is always met (and for good reason) with large amounts of skepticism, is perpetual motion. I was reading about superfluids and came across the idea that if you had a superfluid spinning in a container it would spin indefinitely. Is this kind of perpetual motion possible other then the fact that you have to keep the substance at a very low temperature?