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.
Read more about Light.
Famous quotes containing the word light:
“The light which puts out our eyes is darkness to us. Only that day dawns to which we are awake. There is more day to dawn. The sun is but a morning star.”
—Henry David Thoreau (1817–1862)
“Go out of the house to see the moon, and ‘t is mere tinsel; it will not please as when its light shines upon your necessary journey. The beauty that shimmers in the yellow afternoons of October, who could ever clutch it? Go forth to find it, and it is gone: ‘t is only a mirage as you look from the windows of diligence.”
—Ralph Waldo Emerson (1803–1882)
“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)