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:
“Let me give light, but let me not be light,
For a light wife doth make a heavy husband.”
—William Shakespeare (1564–1616)
“In the domain of art there is no light without heat.”
—Victor Hugo (1802–1885)
“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)