Light

Light

Visible light (commonly referred to simply as light) is electromagnetic radiation that is visible to the human eye, and is responsible for the sense of sight. Visible light has a wavelength in the range of about 380 nanometres to about 740 nm – between the invisible infrared, with longer wavelengths and the invisible ultraviolet, with shorter wavelengths.

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Famous quotes containing the word light:

    Her mane falls wild on her forehead,
    And the light breeze moves me to caress her long ear
    That is delicate as the skin over a girl’s wrist.
    Suddenly I realize
    That if I stepped out of my body I would break
    Into blossom.
    James Wright (1927–1980)

    So doth, so is Religion; and this blind-
    ness too much light breeds; but unmoved thou
    Of force must one, and forc’d but one allow;
    And the right; ask thy father which is she,
    let him ask his; though truth and falsehood be
    Near twins, yet truth a little elder is;
    John Donne (1572–1631)

    The eastern light our spires touch at morning,
    The light that slants upon our western doors at evening,
    The twilight over stagnant pools at batflight,
    Moon light and star light, owl and moth light,
    Glow-worm glowlight on a grassblade.
    O Light Invisible, we worship Thee!
    —T.S. (Thomas Stearns)