Science and Technology
- PA-RISC, an instruction set architecture developed by Hewlett-Packard
- PA series, a group of paper sizes
- Pascal (unit), an SI derived unit of pressure
- Peano axioms in mathematical logic
- Physician assistant, the title of one group of mid-level medical practitioners
- Polyacetylene
- Polyamide, the type of polymer that makes of proteins, wool, silk, and nylons
- Power amplifier, a system used to amplify speech or music so that they may be heard by large crowds of people, especially outdoors
- Proanthocyanidins
- Protactinium, a chemical element
- Production assistant, a job title in filmmaking and television
- The position angle of a binary star system
- PA pressure, or pulmonary artery pressure
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Famous quotes containing the words science and/or technology:
“Magic is akin to science in that it always has a definite aim intimately associated with human instincts, needs, and pursuits. The magic art is directed towards the attainment of practical aims. Like other arts and crafts, it is also governed by a theory, by a system of principles which dictate the manner in which the act has to be performed in order to be effective.”
—Bronislaw Malinowski (1984–1942)
“Technology is not an image of the world but a way of operating on reality. The nihilism of technology lies not only in the fact that it is the most perfect expression of the will to power ... but also in the fact that it lacks meaning.”
—Octavio Paz (b. 1914)