Editing Medium (section)

== Science and technology ==
{{see also|Media (disambiguation)#Life sciences{{!}}Media § Life sciences}}

===Astronomy===
* [[Interplanetary medium]], material that fills the Solar System
* [[Interstellar medium]], the matter and energy between a galaxy's stars

=== Communication ===
{{See also|#Wave physics|Media (disambiguation)#Communication}}
* [[Media (communication)]], tools used to store and deliver information or data
* [[Medium of instruction]], a language or other tool used to educate, train, or instruct

===Wave physics===
* [[Transmission medium]], in physics and telecommunications, any material substance which can propagate waves or energy
** [[Active laser medium]] (also called gain medium or lasing medium), a quantum system that allows amplification of power (gain) of waves passing through (usually by stimulated emission)
** [[Optical medium]], in physics, a material through which electromagnetic waves propagate
* [[Excitable medium]], a non-linear dynamic system which has the capacity to propagate a wave

===Other uses in science and technology===
* [[Data storage medium]], a storage container in computing
* [[Growth medium]] (or culture medium), in biotechnology, an object in which microorganisms or cells experience growth
* [[Porous medium]], in engineering and earth sciences, a material that allows fluid to pass through it, such as sand
* [[Processing medium]], in industrial engineering, a material that plays a role in manufacturing processes