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:
“who chained themselves to subways for the endless ride from Battery
to holy Bronx on benzedrine until the noise of wheels and children
brought them down shuddering mouth-wracked and battered bleak of brain and drained of brilliance in the drear light of Zoo,”
—Allen Ginsberg (b. 1926)
“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)
“The light by which we see in this world comes out from the soul of the observer. Wherever any noble sentiment dwelt, it made the faces and houses around to shine. Nay, the powers of this busy brain are miraculous and illimitable.”
—Ralph Waldo Emerson (1803–1882)