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 technology, science and, science and/or technology:
“Our civilization is shifting from science and technology to rhetoric and litigation.”
—Mason Cooley (b. 1927)
“Science and literature are not two things, but two sides of one thing.”
—Thomas Henry Huxley (1825–95)
“What happened at Hiroshima was not only that a scientific breakthrough ... had occurred and that a great part of the population of a city had been burned to death, but that the problem of the relation of the triumphs of modern science to the human purposes of man had been explicitly defined.”
—Archibald MacLeish (1892–1982)
“One can prove or refute anything at all with words. Soon people will perfect language technology to such an extent that they’ll be proving with mathematical precision that twice two is seven.”
—Anton Pavlovich Chekhov (1860–1904)