General Science
- Parking Distance Control, is a system used in cars to measure the distance between the car and obstacles
- Pulsed DC, the form of wave produced from a half-wave rectifier or a full-wave rectifier
- Pyroclastic density current, a highly energetic ground current of superheated gases containing a high density of suspended pyroclastic fragments resulting from a volcanic explosion
- Plasmacytoid dendritic cell, a type of mammalian cell that functions as a component of the innate immune system
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Famous quotes containing the words general and/or science:
“As a general rule, do not kick the shins of the opposite gentleman under the table, if personally unaquainted with him; your pleasantry is liable to be misunderstood—a circumstance at all times unpleasant.”
—Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)
“Imagination could hardly do without metaphor, for imagination is, literally, the moving around in one’s 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)