Assertion: nebula's material | /r/CapableOf | sink to the bottom of the liquid
Facets:
Source sentences:
text: Because of the extreme purity of superfluid 3He (since all materials except 4He have solidified and sunk to the bottom of the liquid 3He and any 4He has phase separated entirely, this is the most pure condensed matter state), these collective modes have been studied with much greater precision than in any other unconventional pairing system.