Water Pressure Difference

Famous quotes containing the words water, pressure and/or difference:

    Rock of ages, cleft for me,
    Let me hide myself in Thee!
    Let the Water and the Blood,
    From thy riven Side which flow’d,
    Be of sin the double cure;
    Cleanse me from its guilt and pow’r.
    Augustus Montague Toplady (1740–1778)

    Today’s pressures on middle-class children to grow up fast begin in early childhood. Chief among them is the pressure for early intellectual attainment, deriving from a changed perception of precocity. Several decades ago precocity was looked upon with great suspicion. The child prodigy, it was thought, turned out to be a neurotic adult; thus the phrase “early ripe, early rot!”
    David Elkind (20th century)

    The invention of photography provided a radically new picture-making process—a process based not on synthesis but on selection. The difference was a basic one. Paintings were made—constructed from a storehouse of traditional schemes and skills and attitudes—but photographs, as the man on the street put, were taken.
    Jean Szarkowski (b. 1925)