Student solves a 100-year-old physics enigma
(PHYSorg.com Physics)

An EPFL Bachelor`s student has solved a mystery that has puzzled scientists for 100 years. He discovered why gas bubbles in narrow vertical tubes seem to remain stuck instead of rising upward. According to his research and observations, an ultra-thin film of liquid forms around the bubble, preventing it from rising freely. And he found that, in fact, the bubbles are not stuck at all-they are just moving very, very slowly.