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:
“To learn to read is to light a fire; every syllable that is spelled out is a spark.”
—Victor Hugo (1802–1885)
“When goose down is sent a thousand miles, the gift may be light but the sentiment is weighty.”
—Chinese proverb.
“And for tired eyes every light is too bright, and for tired lips every breath too heavy, and for tired ears every word too much.”
—Georg Büchner (1813–1837)