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:
“It was a remarkable kind of light to steer for,—daylight seen through a vista in the forest,—but visible as far as an ordinary beacon at night.”
—Henry David Thoreau (1817–1862)
“A light exists in spring
Not present on the year
At any other period.”
—Emily Dickinson (1830–1886)
“It is obvious that we can no more explain a passion to a person who has never experienced it than we can explain light to the blind.”
—T.S. (Thomas Stearns)