ScienceCasts: Superfluids

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Strange quantum fluids that love to sneak out of cups have been found trapped inside the core of a dead neutron star.

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  Science & Technology

[VC106893]

I always have a double feelings watching these videos. One part of me gets really excited cause of these awesome things. The other part feels really stupid for not understand what that awesome thing really is...

[JabberCT]

Awesome :)

[DeathJustice]

First of all, fluids does not equal liquids. However, liquid helium flows up in the molecular scale (hence the little dots), it's not like its springing off the glass like a fucking river. This effect is part of the macroscopic quantum phenomena.

[kdc43]

How can a fluid flow up AGAINST gravity with NO power source....sounds like an unscientific overunity power or perpetual motion crap.

[SakuraKaminari]

(cont'd) not a superfluid. Also, many Bose-Einstien condensates tend to be similar to superfluids, and can fall into a superfluid state (in theory, maybe). I hope this helps!

[SakuraKaminari]

Well, on earth, we haven't found one that is stable (stays superfluid) outside of a laboratory, it goes back to just a normal liquid, because all known superfluids (ones that are made of atoms, not just neutrons, those seem to be... exempt as shown in the video) seem to only be superfluid below the "lambda point", or about 2.17K for helium-4, one of the only known superfluids. The only other one I'm aware of is Helium-2, not to be confused with Helium-3, which is a fermion particle(to be cont'd)

[C Mckay]

what if you drank

[kumsim7]

I thought I understood this at first but then realized I was thinking of supercritical fluid.

I don't know a thing about superfluid........... is it stable, or is it another one of those things that is only maintained in a controlled environment?

[QQL3]

Are there neutron superfluids? The neutron star problems I've done I have only included neutrons.

[Masterricky3333]

The only thing I generally feel is a extreme curiosity, since I want to know ALL about the universe, and these videos feel like a drop in the bucket.

[WatashiwaOyu]

wow superfluid made all natural? Amusing. Wish I knew more about it.

[Kris Ward]

unfortunately, no...bored and, like you, not understanding wtf mouhtaram45 was talking about, so I ran with it. If we're going to be all serious though, I definitely agree with your original comment...I really cannot fathom a superfluid, it's so counter intuitive to what I think is within the realm of possibility for fluids...great channel...