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:
“Run to your houses, fall upon your knees,
Pray to the gods to intermit the plague
That needs must light on this ingratitude.”
—William Shakespeare (1564–1616)
“You are the light of the world. A city built on a hill cannot be hid.”
—Bible: New Testament, Matthew 5:14.
“What will you say, when I tell you truly, that I cannot possibly read our countryman Milton through. I acknowledge him to have most sublime passages, some prodigious flashes of light; but then you must acknowledge that light is often followed by darkness visible, to use his own expression.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)