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:
“This Light inspires, and plays upon
The nose of Saint like Bag-pipe drone,
And speaks through hollow empty Soul,
As through a Trunk, or whisp’ring hole,
Such language as no mortal Ear
But spiritual Eve-droppers can hear.”
—Samuel Butler (1612–1680)
“To recover a buried treasure without having it disappear miraculously in the process, one must be entitled to it, and also be willing—really willing deep in his heart—to share it with the poor and helpless. Buried money, especially silver, gives off a bright glow which comes right up through the earth and can be seen as a dim light on nights when the weather is misty or there is a gentle rain.”
—Administration in the State of Ariz, U.S. public relief program (1935-1943)
“they appear youthful, rare
as the light of a happy eye, live with the grace
of all that in the mind is fleckless, free and
naturally to be desired.”
—William Carlos Williams (1883–1963)