Liquid Helium II the superfluid (part 4 The fountain effect)
Why the open web links it
Demonstrates the unique properties of superfluid helium, including the fountain effect, in a historic 1963 film.
Linked by 3 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including frontiersin.org, u-tokyo.ac.jp.