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:
“Tomorrow night, when Phoebe doth behold
Her silver visage in the watery glass,
Decking with liquid pearl the bladed grass.”
—William Shakespeare (1564–1616)
“Only if loves fire with the breath
Of life be kindled, I doubt,
With our last air ‘twill be breath’d out,
And quenched with the cold of death.”
—Edward Herbert (1583–1648)