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:
“What slender Youth bedew’d with liquid odours
Courts thee on Roses in some pleasant Cave,”
—Horace [Quintus Horatius Flaccus] (65–8)
“Now Air is hush’d, save where the weak-ey’d Bat,
With short shrill Shriek flits by on leathern Wing,
Or where the Beetle winds
His small but sullen Horn,”
—William Collins (1721–1759)