Light
A source of light can have many colors mixed and in different amounts (intensities). A rainbow, or prism, sends the different frequencies in different directions, making them individually visible at different angles. A graph of the intensity plotted against the frequency (showing the amount of each color) is the frequency spectrum of the light. When all the visible frequencies are present in equal amounts, the perceived color of the light is white, and the spectrum is a flat line. Therefore, flat-line spectrums in general are often referred to as white, whether they represent light or something else
Read more about this topic: Frequency Spectrum
Famous quotes containing the word light:
“The eastern light our spires touch at morning,
The light that slants upon our western doors at evening,
The twilight over stagnant pools at batflight,
Moon light and star light, owl and moth light,
Glow-worm glowlight on a grassblade.
O Light Invisible, we worship Thee!”
—T.S. (Thomas Stearns)
“The food of thy soul is light and space; feed it then on light and space. But the food of thy body is champagne and oysters; feed it then on champagne and oysters; and so shall it merit a joyful resurrection, if there is any to be.”
—Herman Melville (1819–1891)
“Syncopations are no indication of light or trashy music, and to shy bricks at “hateful ragtime” no longer passes for musical culture.”
—Scott Joplin (1868–1917)