Water

Water

Water is a chemical substance with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at temperatures above 0 °C (273.15 K, 32 °F) at sea level, but it often co-exists on Earth with its solid state, ice, and gaseous state (water vapor or steam). Water also exists in a liquid crystal state near hydrophilic surfaces.

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Famous quotes containing the word water:

    “As the hart panteth after the water brooks, so panteth my soul
    after thee, O God.”
    —Bible: Hebrew Psalm XLII (l. XLII, 1)

    “What a dissimilarity we see in walking, swimming, and flying. And yet it is one and the same motion: it is just that the load- bearing capacity of the earth differs from that of the water, and that that of the water differs from that of the air! Thus we should also learn to fly as thinkers—and not imagine that we are thereby becoming idle dreamers!”
    —Friedrich Nietzsche (1844–1900)

    “To be thirsty and to drink water is the perfection of sensuality rarely achieved. Sometimes you drink water; other times you are thirsty.”
    —José Bergamín (1895–1983)