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:
“As one child psychologist friend of mine explains it with tongue in cheek, your baby only needs a lot of light at night if he’s reading or he’s entertaining guests.”
—Lawrence Kutner (20th century)
“A light exists in spring
Not present on the year
At any other period.”
—Emily Dickinson (1830–1886)
“We live technologically, with man as the master of nature, man as the engineer, and let anyone who raises his voice against it stop using bridges not built by nature.... No electric light bulbs, no engines, no atomic energy, no calculating machines, no anaesthetics—back to the jungle.”
—Max Frisch (1911–1991)