Is Black and white a colour ?
C o l o u r Is of course, simply the way we describe light of different wavelengths. To put it in scientific terms, however, The range of visible light that humans can see with approximately 130 million light sensitive cells. Different colors, such as red and orange, and other invisible spectrum's such as infrared light, move around in waves of electromagnetic energy. The human eye is capable of seeing only light with wavelengths between 380 and 750 nano-meters. For example, the visible spectrum begins with the wavelengths that we call violet, between 380 and 450 nm, then moves on to blue, green, yellow, and orange, and ends with what we call red, between 590 and 750 nm. When you look at someone’s red shirt, for instance, that shirt will be absorbing or scattering wavelengths of light lower than 590 nm, so those waves will not reach your eyes. But a red shirt will be reflecting some wavelength between 590 and 750 nm, which your eyes process as red. The trou...