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:
“To behold the day-break!
The little light fades the immense and diaphanous shadows,
The air tastes good to my palate.
Hefts of the moving world at innocent gambols silently rising,
freshly exuding,
Scooting obliquely high and low.”
—Walt Whitman (1819–1892)
“But the golden-rod is one of the fairy, magical flowers; it grows not up to seek human love amid the light of day, but to mark to the discerning what wealth lies hid in the secret caves of earth.”
—Margaret Fuller (1810–1850)
“The light is like a spider.
It crawls over the water.
It crawls over the edges of the snow.
It crawls under your eyelids
And spreads its webs there
Its two webs.”
—Wallace Stevens (1879–1955)