Three related abilities may be used in clairvoyant psychic readings: 1  Clairvoyance, or the ability to see clearly. 2  Clairaudience, or clear hearing.  Clairsentience, or clear feeling (physical or emotional), also known as clear knowing.
In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency. Media having this common property may be termed dispersive media. Sometimes the term chromatic dispersion is used for specificity.
Colloidal dispersions are heterogeneous in nature and gas dispersed in another gaseous medium does not form colloidal system. When the dispersion medium is gas, the solution is called Aerosol and when the dispersion medium is liquid, the colloidal dispersion is known as Sol.