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The bikini is typically a women's swimsuit, either a one-piece or a two-piece. For the two-piece, one part of the attire is covering the breasts; the other the groin and, optionally, part or all of the buttocks, leaving an uncovered area between the two. The bikini is often worn in hot weather, while swimming or sunning. A bikini is also often worn as an undergarment to the wetsuit for waterskiing, scuba diving, surfing, and wakeboarding...

The human eye is an organ which reacts to light for several purposes. As a conscious sense organ, the eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth. The human eye can distinguish about 10 million colors...