- #1
Hut
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Just recently I discovered the world of the superfluids and I am astonished by the characteristics of Helium II. Even after researching for hours there a still a few questions which I wasn’t able to answer myself.
Rollin Film:
If a container is filled with helium II are the walls and the ceiling of this container going to be covered without any further impact from the outside after a few hours have passed by? How does this phenomenon go along with the law of the conservation of energy? The liquid climbs in the container so it gains potential energy.
For the fountain effect to happen you have to heat up the superfluid in order for it to change back to the helium I state.
How can you heat up a superfluid if is capable of transporting heat like waves to other places (“2nd sound”) ?
Thanks in advance.
Regards
Rollin Film:
If a container is filled with helium II are the walls and the ceiling of this container going to be covered without any further impact from the outside after a few hours have passed by? How does this phenomenon go along with the law of the conservation of energy? The liquid climbs in the container so it gains potential energy.
For the fountain effect to happen you have to heat up the superfluid in order for it to change back to the helium I state.
How can you heat up a superfluid if is capable of transporting heat like waves to other places (“2nd sound”) ?
Thanks in advance.
Regards