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
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Famous quotes containing the words natural and/or science:
“There is an universal tendency among mankind to conceive all beings like themselves, and to transfer to every object, those qualities, with which they are familiarly acquainted, and of which they are intimately conscious. We find human faces in the moon, armies in the clouds; and by a natural propensity, if not corrected by experience and reflection, ascribe malice or good-will to every thing, that hurts or pleases us.”
—David Hume (1711–1776)
“The present war having so long cut off all communication with Great-Britain, we are not able to make a fair estimate of the state of science in that country. The spirit in which she wages war is the only sample before our eyes, and that does not seem the legitimate offspring either of science or of civilization.”
—Thomas Jefferson (1743–1826)