Working Fluid
The working fluid can be of any composition and the system may be single phase (liquid only or gas only) or dual phase (liquid/gas).
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Famous quotes containing the words working and/or fluid:
“As for work, without it, without painstaking work, any writer or artist definitely remains a dilettante; there’s no point in waiting for so-called blissful moments, for inspiration; if it comes, so much the better—but you keep working anyway.”
—Ivan Sergeevich Turgenev (1818–1883)
“It is a mischievous notion that we are come late into nature; that the world was finished a long time ago. As the world was plastic and fluid in the hands of God, so it is ever to so much of his attributes as we bring to it. To ignorance and sin, it is flint. They adapt to themselves to it as they may; but in proportion as a man has anything in him divine, the firmament flows before him and takes his signet and form.”
—Ralph Waldo Emerson (1803–1882)