Rollin film

（重定向自Third sound）

The liquid helium is in the superfluid phase. As long as it remains superfluid, it creeps up the inside wall of the cup as a thin film. It comes down on the outside, forming a drop which will fall into the liquid below. Another drop will form—and so on—until the cup is empty.

A Rollin film, named after Bernard V. Rollin, is a 30 nm-thick liquid film of helium in the helium II state. It exhibits a "creeping" effect in response to surfaces extending past the film's level (wave propagation). Helium II can escape from any non-closed container via creeping toward and eventually evaporating from capillaries of 10 to 10 meters or greater.

单词	Third sound
释义	Third sound 原声例句 Emma的美味英语 There's actually a third sound that you can link between vowels. 在进行元音与元音连读的时候，其实还可以加入第三个音。美丽与毁灭（下） Just prior to the seventh false start a third sound contributes to the subdued discord. 就在第七次错误开始之前，第三种声音促成了柔和的不和谐。英语百科 Rollin film （重定向自Third sound） A Rollin film, named after Bernard V. Rollin, is a 30 nm-thick liquid film of helium in the helium II state. It exhibits a "creeping" effect in response to surfaces extending past the film's level (wave propagation). Helium II can escape from any non-closed container via creeping toward and eventually evaporating from capillaries of 10 to 10 meters or greater.
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