Lecture 20 Part II: Superfluidity, The Fountain Effect and Superfluid Vortices

[@heshamalhalqabi6915]

Good

[@Xogroroth666]

Use Krypton bottles. That got the Super out of the man, as well. XD

[@pauljs75]

A curious question... Can a superfluid be maintained in its zero friction state over an airfoil surface with an appreciable effect on laminar flow with some other surrounding gas? Something like a micron thin film over a surface allowing shedding of any surrounding envelope? I suspect such could have some rather interesting applications, if it can effectively eliminate drag without too much of an effect on lift. Might be a way to go supersonic with no (significant) sonic boom, and perhaps "super-gliding" if the reduction in drag really is that significant. Maybe a question more about mechanical properties than physics or related quantum intricacies, but somebody with more access/experience with such a peculiar substance is likely to know or have means of experimenting. I figured such may also require quite a bit of liquid helium as a consumable due to shedding, so it may have some practical issues to the approach anyways. (Information on superfluids in some regards is limited, so there's not too many places to ask.)