The Mind-Bending Properties Of Superfluid Helium

At super low temperatures, liquid helium keeps MRI machines and particle accelerators cooled and running. Just a few degrees above absolute zero, superfluid helium getz bizarre. A superfluid liquid is one that flows without friction. Because superfluid helium has zero viscosity, it can drip out through molecule-thin cracks in solid containers and climb out over the sides of a dish.


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Key Facts In This Video

  1. At absolute zero, atoms would completely stop moving. 00:23

  2. See liquid helium cooled down so low that the bubbles are still: 01:33

  3. The idea that a solid can contain a liquid no longer holds when the liquid becomes a superfluid. 02:48