Science
- Optical Density (absorbance)
- Optical depth
- Optical depth (astrophysics)
- Oxygen Demand
- Biochemical oxygen demand
- Carbonaceous biochemical oxygen demand
- Chemical oxygen demand
- Theoretical oxygen demand
Read more about this topic: OD
Famous quotes containing the word science:
“What is done for science must also be done for art: accepting undesirable side effects for the sake of the main goal, and moreover diminishing their importance by making this main goal more magnificent. For one should reform forward, not backward: social illnesses, revolutions, are evolutions inhibited by a conserving stupidity.”
—Robert Musil (18801942)
“Imagination could hardly do without metaphor, for imagination is, literally, the moving around in ones mind of images, and such images tend commonly to be metaphoric. Creative minds, as we know, are rich in images and metaphors, and this is true in science and art alike. The difference between scientist and artist has little to do with the ways of the creative imagination; everything to do with the manner of demonstration and verification of what has been seen or imagined.”
—Robert A. Nisbet (b. 1913)
“There is a chasm between knowledge and ignorance which the arches of science can never span.”
—Henry David Thoreau (18171862)