Tyndall effect (also known as Tyndall scattering) is a light scattering by particles in a colloid or a fine suspension. Example of Tyndall effect includes the visible beam of headlight in a foggy night.  Tyndall scattering is similar to the Rayleigh scattering. The fundamental difference is that the scattering particle is much smaller than the wavelength (less than one tenth) in Rayleigh scattering, while the Read full article »