Liquid helium lambda point transition

Autor:

Alfred Leitner photographed this as part of his movie "Liquid Helium, Superfluid".

Credit:

Own work by uploader., Photograph from my movie "Liquid Helium, Superfluid".

Krótki link:

https://www.plwiki.pl/b/3f334

źródło:

Wikimedia Commons

Wymiary:

1376 x 1410 Pixel (285148 Bytes)

Opis:

When liquid helium is cooled down from 4.2K to the lambda point at 2.2K the liquid for a brief moment boils up violently.Suddenly, boiling ceases. This is the transition from the normal phase to the superfluid phase.

Licencja:

Public domain

Komentarz do licencji:

The movie had U.S.copyright 1963, which expired and was not renewed:PUBLIC DOMAIN.