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:
“To the highest leadership among women it is given to hold steadily in one hand the sacred vessels that hold the ancient sanctities of life, and in the other a flaming torch to light the way for oncoming generations.”
—Anna Garlin Spencer (1851–1931)
“Spades take up leaves
No better than spoons,
And bags full of leaves
Are light as balloons.”
—Robert Frost (1874–1963)
“Nations, like stars, are entitled to eclipse. All is well, provided the light returns and the eclipse does not become endless night. Dawn and resurrection are synonymous. The reappearance of the light is the same as the survival of the soul.”
—Victor Hugo (1802–1885)