Free White

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White

— Commonly represents —
Purity, lack, snow, ice, peace, life, death, nothing, frost, good, air
— Color coordinates —
Hex triplet		#FFFFFF
RGB^B	(r, g, b)	(255, 255, 255)
HSV	(h, s, v)	(-°, 0%, 100%)
Source		By definition
B: Normalized to (byte)

White is a tone, the perception which is evoked by light that stimulates all three types of color sensitive cone cells in the human eye in near equal amount and with high brightness compared to the surroundings.

Since the impression of white is obtained by three summations of light intensity across the visible spectrum, the number of combinations of light wavelengths that produce the sensation of white is practically infinite. There are a number of different white light sources such as the midday Sun, incandescent lamps, fluorescent lamps and white LEDs. The impression of white light can also be created by mixing appropriate intensities of the primary colors of light — red, green and blue (RGB) — a process called additive mixing, as seen in many display technologies.

White light reflected off objects can be seen when no part of the light spectrum is reflected significantly more than others and the reflecting material has a degree of diffusion. This is seen when transparent fibers, particles, or droplets are in a transparent matrix of a substantially different refractive index. Examples include classic "white" substances such as sugar, foam, pure sand or snow, cotton, clouds, and milk. Crystal boundaries and imperfections can also make otherwise transparent materials white, as in the milky quartz or the microcrystalline structure of a seashell. This is also true for artificial paints and pigments, where white results when finely divided transparent material of a high refractive index is suspended in a contrasting binder. Typically paints contain calcium carbonate and/or synthetic rutile with no other pigments if a white color is desired.

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The theme of this photo contest is black and white street photography. Capture a street scene with your camera. Submit it as a black and white photograph. Street scene photographs can be of a busy city street or a tranquil town setting. There is a cash prize for the winner and this contest is free to enter.

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Want to find out what a white phosphorus bomb attack is like? Too bad, you can't, unless you happen to be a resident of Gaza Strip right now.

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