Recent Examples of superfluid from the Web
All the particles there form a superfluid, which can flow without any friction.
Only discovered in 1983, the helium superfluid allows some for some of the weirder aspects of quantum physics to become visible to the naked eye.
For comparison, the vorticity of tiny droplets of a superfluid tops out at about 107 per second.
The two teams made different assumptions about how hot the neutrons were to begin with, so their calculations for the temperature at which the superfluid state is possible are different.
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