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:
“I think continually of those who were truly great.
Who, from the womb, remembered the soul’s history
Through corridors of light where the hours are suns,
Endless and singing.”
—Stephen Spender (1909–1995)
“To the highest leadership among women it is given to hold steadily in one hand the sacred vessels that hold the ancient sanctities of life, and in the other a flaming torch to light the way for oncoming generations.”
—Anna Garlin Spencer (1851–1931)
“If you wish to grow thinner, diminish your dinner,
And take to light claret instead of pale ale;
Look down with an utter contempt upon butter,
And never touch bread till it’s toasted—or stale”
—H.S. (Henry Sambrooke)