Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
quantum fluid
|
| gptkbp:alsoKnownAs |
gptkb:helium_II
|
| gptkbp:density_at_lambda_point |
0.145 g/cm³
|
| gptkbp:discoveredBy |
gptkb:Pyotr_Kapitsa
gptkb:Don_Misener gptkb:John_F._Allen 1937 |
| gptkbp:does_not_freeze_at_atmospheric_pressure |
true
|
| gptkbp:exhibits |
superfluidity
quantized vortices second sound Rollin film creeping along surfaces fountain effect zero viscosity |
| https://www.w3.org/2000/01/rdf-schema#label |
superfluid helium
|
| gptkbp:is_a_phase_of |
gptkb:helium
|
| gptkbp:isomerOf |
gptkb:helium-4
helium-3 |
| gptkbp:lambda_point |
2.17 K
|
| gptkbp:occurs_at_temperature_below |
2.17 K
|
| gptkbp:studiedBy |
condensed matter physics
quantum mechanics |
| gptkbp:transition_temperature |
gptkb:lambda_point
|
| gptkbp:used_in |
cryogenics
low temperature physics |
| gptkbp:bfsParent |
gptkb:Bose–Einstein_condensate
|
| gptkbp:bfsLayer |
5
|