Superfluidity is a state of matter in which the matter behaves like a fluid with zero viscosity; where it appears to exhibit the ability to self-propel and travel in a way that defies the forces of gravity and surface tension. Superfluidity is found in astrophysics, high-energy physics, and theories of quantum gravity. The phenomenon is related to Bose–Einstein condensation, but neither is a specific type of the other: not all Bose-Einstein condensates can be regarded as superfluids, and not all superfluids are Bose–Einstein condensates.
Superfluidity was originally discovered in liquid helium, by Pyotr Kapitsa and John F. Allen. It has since been described through phenomenology and microscopic theories. In liquid helium-4, the superfluidity occurs at far higher temperatures than it does in helium-3. Each atom of helium-4 is a boson particle, by virtue of its integer spin. A helium-3 atom is a fermion particle; it can form bosons only by pairing with itself at much lower temperatures. This process is similar to the electron pairing in superconductivity.
I'll be right back
Don't forget the cognac
Makes you warm inside somehow
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So delicious
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And nutritious
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Superfluity
Tu tu lu du lu
And delicious
Or else she pulls
The shades down
There she goes
There she goes
Parties at home
Buffalo's roam
So delicious
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And nutritious
Tu tu lu du lu
Superfluity
Tu tu lu du lu
And delicious
And delicious
She settled on
The cold floor
Feeling it
Become warm beneath her as
She went to sleep
So delicious
Tu tu lu du lu
And nutritious
Tu tu lu du lu
Superfluity
Tu tu lu du lu