Rearrangements of monodisperse foams (IMAGE) Tokyo Metropolitan University Caption A rearrangement event in a monodisperse foam. Note how bubbles move in the same direction along the same row, or in exactly the opposite direction in adjacent rows over long distances (the correlation length). Credit Tokyo Metropolitan University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.