large density fluctuations. In 1910 Albert Einstein showed that the link between critical opalescence and Rayleigh scattering is quantitative . External links A time-lapse video of critical opalescence in a binary mixture Account of Einstein's work on daylight and critical opalescence, with references More-detailed experimental demonstrations of critical opalescence may be found at https://web.archive.org/web/20071121073241/http://www.physicsofmatter.com/NotTheBook/CriticalOpal/Explanation.html https://web.archive.org/web/20041119135015/http://www.msm.cam.ac.uk/doitpoms/tlplib/solid-solutions/demo.php Critical phenomena Phase transitions