behavior of natural gases


A university student recently solved a question that’s puzzled physicists for over half a century: Why do gas bubbles appear to get stuck inside narrow vertical tubes? The answer may help explain the behavior of natural gases that are trapped in porous rocks.

Years ago, physicists noticed that gas bubbles in a sufficiently narrow tube filled with liquid did not move. But that’s “kind of a paradox,” said senior author John Kolinski, an assistant professor in the department of mechanical engineering at the Swiss Federal Institute of Technology Lausanne (EPFL).