Superfluidity filmed?

[Gerinski]

Anyone knows of any website where I could find a film clip of the superfluidity phenomenon?
Just curious to see such a weird behaviour with my own eyes

[Nenad]

I doubt its been filmed

[ШЇSЭЯ]

what is superfluidity?

[Gza]

I doubt its been filmed

Why would you say that? I would think it would be rather easy to film. I also have wanted to see what it looks like instead of hearing it second-hand from physics professors who go on and on about how weird it looks.

[LURCH]

Take a look at this (http://gibbs.ps.uci.edu/labpage/research/index.cfm).

[Gerinski]

TX LURCH, good site !

Unfortunately I did not find here any video of the most famous (and probably most spectacular) superfluidity behaviour, the one I'm actually looking for: the superfluid climbing up the container wall and flowing over the top ....

[Gerinski]

what is superfluidity?

From [URL=http://www.egglescliffe.org.uk/physics/supercond/supfluid/superfluids.html[/URL]

What Are Superfluids ?
Superfluids are, like superconductors, related to the behaviour of materials at very low temperatures. Superfluids can only be observed at much lower temperatures than superconductors, Helium-4 doesn't display superfluid-behaviour until nearly below 2K. and these temperatures are not easy to reach.

When a material does become a superfluid, it displays some very strange behaviour;
* if it is placed in an open container it will rise up the sides and flow over the top
* if the fluid's container is rotated from stationary, the fluid inside will never move, the viscosity of the liquid is zero, so any part of the liquid or it's container can be moving at any speed without affecting any of the surrounding fluid
* if a light is shone into a beaker of superfluid and there is an exit at the top the fluid will form a fountain and shoot out of the top exit

[ШЇSЭЯ]

From [URL=http://www.egglescliffe.org.uk/physics/supercond/supfluid/superfluids.html[/URL]

What Are Superfluids ?
Superfluids are, like superconductors, related to the behaviour of materials at very low temperatures. Superfluids can only be observed at much lower temperatures than superconductors, Helium-4 doesn't display superfluid-behaviour until nearly below 2K. and these temperatures are not easy to reach.

When a material does become a superfluid, it displays some very strange behaviour;
* if it is placed in an open container it will rise up the sides and flow over the top
* if the fluid's container is rotated from stationary, the fluid inside will never move, the viscosity of the liquid is zero, so any part of the liquid or it's container can be moving at any speed without affecting any of the surrounding fluid
* if a light is shone into a beaker of superfluid and there is an exit at the top the fluid will form a fountain and shoot out of the top exit

thnks for the info..

this has bin filmed,,

[Gerinski]

thnks for the info..
this has bin filmed,,

If so, do you know of any internet site where a videoclip can be found ?
TX

[Pieter Kuiper]

In french:
http://www.ujf-grenoble.fr/PHY/FOREXPER/TPhelium/pages/Presentation%20film.html

It starts with a series of other cryogenic experiments (superconducting Meissner effect, paramagnetism of oxygen), but then it goes on to liquid and superliquid helium. It shows how the liquid stops bubbling and it shows the liquid flowing out of the container. Very nice.

(First hit on http://www.alltheweb.com/search?cat=vid&q=helium.)

[Gerinski]

TX Pieter !! :-)