Natural Science
- Processing medium, in industrial engineering, a material that plays a role in manufacturing processes
- Excitable medium, a nonlinear dynamic system which has the capacity to propagate a wave
- Gain medium, a quantum system that allows amplification of power (gain) of waves passing through (usually by stimulated emission)
- Growth medium (or culture medium), in biotechnology, an object in which microorganisms or cells experience growth
- Interplanetary medium, in astronomy, material which fills the solar system
- Interstellar medium, in astronomy, the matter and energy content that exists between the stars within a galaxy
- Porous medium, in engineering and earth sciences, a material that allows fluid to pass through it, such as sand
Read more about this topic: Medium
Famous quotes containing the words natural and/or science:
“A book should contain pure discoveries, glimpses of terra firma, though by shipwrecked mariners, and not the art of navigation by those who have never been out of sight of land. They must not yield wheat and potatoes, but must themselves be the unconstrained and natural harvest of their author’s lives.”
—Henry David Thoreau (1817–1862)
“Hard times accounted in large part for the fact that the exposition was a financial disappointment in its first year, but Sally Rand and her fan dancers accomplished what applied science had failed to do, and the exposition closed in 1934 with a net profit, which was donated to participating cultural institutions, excluding Sally Rand.”
—For the State of Illinois, U.S. public relief program (1935-1943)