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Video 4. Alfred Leitner - Liquid Helium II the Superfluid by Alfred Leitner (1963) Source. Original source: http://www.alfredleitner.com.
Video 5. Ben Miller experiments with superfluid helium by BBC (2011) Source. Just quickly shows the superfluid helium climbing out o the cup, no detailed setup. With professor Robert Taylor from the University of Oxford.

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