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:
“Signal smokes, war drums, feathered bonnets against the western sky. New messiahs, young leaders are ready to hurl the finest light cavalry in the world against Fort Stark. In the Kiowa village, the beat of drums echoes in the pulsebeat of the young braves. Fighters under a common banner, old quarrels forgotten, Comanche rides with Arapaho, Apache with Cheyenne. All chant of war. War to drive the white man forever from the red man’s hunting ground.”
—Frank S. Nugent (1908–1965)
“Ye are the light of the world.”
—Bible: New Testament Jesus, in Matthew, 5:14.
From the Sermon on the Mount.
““Lord, now lettest thou thy servant depart in peace, according to your word; for mine eyes have seen thy salvation, which thou hast prepared in the presence of all peoples, light for revelation to the Gentiles and for glory to thy people Israel.””
—Bible: New Testament (RSV)