Liquid air is air that has been cooled to very low temperatures (cryogenic temperatures), so that it has condensed into a pale blue mobile liquid. To protect it from room temperature, it must be kept in a vacuum insulated flask. Liquid air can absorb heat rapidly and revert to its gaseous state. It is often used for condensing other substances into liquid and/or solidifying them, and as an industrial source of nitrogen, oxygen, argon, and other inert gases through a process called air separation. Liquid air is also replacing liquid nitrogen for theatrical smoke and fog effects.
Read more about Liquid Air: Properties, Application
Famous quotes containing the words liquid and/or air:
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How nature paints her colors, how the bee
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—John Milton (1608–1674)
“It is true that the rivers went nosing like swine,
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—Wallace Stevens (1879–1955)