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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“No government can help the destinies of people who insist in putting sectional and class consciousness ahead of general weal.”
—Franklin D. Roosevelt (18821945)
“We have lost the art of living; and in the most important science of all, the science of daily life, the science of behaviour, we are complete ignoramuses. We have psychology instead.”
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